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Ceiling fan with suspension detection

A ceiling fan includes a suspending part fixed to a ceiling and a ceiling fan body suspended via the suspending part. The ceiling fan body has a plurality of horizontally-provided blades, a motor that rotates the blades, a shaft protruding from an upper side of the motor, and a joint part that is fixed to an upper side of the shaft and is connected to the suspending part. The joint part is detachable from the suspending part and is provided with a suspension detecting part extending from the joint part to the suspending part. The suspension detecting part detecting an energized state between the suspending part and the joint part.




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Piston and scroll compressor assembly

A compressor is provided and may include a shell, a motor assembly, a drive shaft, a first compression mechanism, and a second compression mechanism. The motor assembly may be disposed within the shell. The drive shaft may be powered by the motor assembly. The first compression mechanism may be disposed within the shell and may be driven by the motor assembly. The second compression mechanism may be driven by the motor assembly.




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Camera protection module for portable device case

A mobile device case defining an aperture and a camera protection module within the aperture. The camera protection module may be a separate element from the case shell or may be formed as an integral part of shell.




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Image capturing apparatus and control method of the same

An image capturing apparatus comprises: an image sensor configured to capture an image; a vibration detection unit configured to detect a vibration; a vector detection unit configured to detect a motion vector from images; a first correction unit configured to optically correct an image blur; a second correction unit configured to electrically correct the image blur; a first calculation unit configured to calculate, on the basis of the vibration, a first vibration correction amount for controlling the first correction unit; a second calculation unit configured to calculate, on the basis of the motion vector, a second vibration correction amount for controlling the second correction unit; and a control unit configured to control the first and second calculation units so that the first and second vibration correction amounts are suppressed when a vibration amount is greater than a first threshold.




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Method and apparatus for controlling flash

A method and an apparatus for controlling a flash are disclosed. The method includes obtaining a statistical gray value of a preview image. If the statistical gray value of the preview image is less than a preset threshold, a corresponding fill light parameter is searched for in a preset dynamic fill light table according to the statistical gray value of the preview image and the fill light drive current is set according to the fill light parameter. The fill light drive current is configured to drive a flash lamp to fire a pre-flash. A corresponding exposure drive current in the preset exposure parameter table is configured according to the fill light parameter and the exposure drive current is configured to drive the flash lamp to flash.




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Methods for enhancing camera focusing performance using camera orientation

An electronic system for enhancing camera focusing on a portable electronic device is disclosed. The system comprises a body, a bus, and a camera module coupled to the bus and comprising a photosensitive substrate and a lens assembly wherein the lens assembly comprises a lens capable of being selectively moved to a distance from the photosensitive substrate for light focus thereon. Further, it comprises an accelerometer coupled to the bus and configured to generate orientation information, said orientation information indicating contemporaneous orientation of the body with respect to a predetermined reference. It also comprises a memory and a processor coupled to the bus. The memory comprises instructions that when executed implement an autofocus program configured to automatically determine the distance based on: 1) image data captured by said camera module; and 2) the orientation information generated by the accelerometer.




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Image capture apparatus and method of controlling the same

An image capture apparatus comprises an inclination detection unit which detects an inclination of the image capture apparatus, a display unit which displays the inclination of the image capture apparatus, and a predetermined reference orientation set for the image capture apparatus, a still state determination unit which determines that the image capture apparatus is in a still state, if a variation of the inclination falls within a predetermined range, and a reference orientation setting unit which sets the reference orientation of the image capture apparatus, wherein the reference orientation setting unit does not set the reference orientation if the still state determination unit determines that the image capture apparatus is not in the still state.




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Moving member control apparatus and imaging apparatus incorporating the same

The present invention relates to a moving member control apparatus that makes sure unerring control of a moving member having an ill-balanced structure and an imaging apparatus that incorporates that control apparatus.




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Image shake correcting apparatus and control method for same, lens barrel, optical apparatus, and imaging apparatus

The CPU acquires the output of an angular velocity sensor and performs image shake correction. An angle 1 calculating unit integrates a signal from which an offset component is removed to calculate an angle 1. An angular velocity subtraction amount calculating unit calculates an angular velocity subtraction amount based on a signal obtained by subtracting a first offset from the output of the angular velocity sensor and a signal obtained by subtracting a second offset from the output of the angle 2 calculating unit. An angle 2 calculating unit integrates a signal obtained by subtracting the angular velocity subtraction amount from the output of the angular velocity sensor to calculate an angle 2. The CPU performs image shake correction based on the angle 1 prior to operation of a release SW, whereas the CPU performs image shake correction based on the angle 2 after operation of the release SW.




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Imaging apparatus, flash device, and control method thereof

An imaging apparatus for performing wireless communication with an external device. An instruction transmitting unit transmits an operation instruction to the external device. A response signal receiving unit receives a response signal from the external device. A first controlling unit starts a first operation relating to an imaging process in a case that a first time passes from a point of receiving the response signal by the response signal receiving unit. The external device executes a second operation relating to the imaging process in a case that a second time passes from a point of transmitting the response signal from the external device to the imaging apparatus.




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Convertible flash bag

A modifiable enclosure that can be used to house an object and can be adapted and connected to the object to aid in directing a stream of light emanating from the object. The modifiable enclosure can include a first panel with a connecting element extending substantially about a periphery thereof and a second panel with connecting element extending substantially about a periphery thereof that is releasably fastenable to the connecting element extending substantially about a periphery of the first panel.




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Camera mount vibration dampener

A vibration dampener for a camera mount is structured to reduce the movement of a first mount component relative to a second mount component. An upper camera mount component securing a camera couples to a lower camera mount component, which in turn couples to a base mount component configured to couple to a user, a sports board, a helmet, a vehicle, and the like. The vibration dampener is compressibly inserted between the lower mount component and the base mount component, causing the vibration dampener to exert an outward force on the lower mount component, and securing the lower mount component against a portion of the base mount component. The movement of the lower mount component relative to the base mount component is accordingly reduced by the vibration dampener.




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Camera lens front cover and the monitoring camera having the same

A camera lens front cover and the monitoring camera having the same are disclosed. The monitoring camera may comprise a main body, a lens module and a camera lens front cover. The lens module may be disposed on the main body and comprise a lens holder and a camera lens, wherein the camera lens may protrude from the lens holder. The camera lens front cover may comprise a cylindrical casing and a glass cap, wherein the cylindrical casing may be hollow, and there are two openings at both sides of the cylindrical casing, and the lens module may be disposed inside the cylindrical casing. The glass cap may be disposed on one of the openings of the cylindrical casing and one side of the glass cap may be disposed with a protrusion part for accommodating the camera lens protruding from the lens holder.




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Motion control device

Described herein is a motion control apparatus for a camera and methods of use of the apparatus. The apparatus includes a camera attachment and a linear movement assembly operatively associated with a drive mechanism. This configuration causes linear movement of the drive mechanism and the camera attachment in a linear direction along a line or pathway. The apparatus is used for capturing time delay sequences and allows for operation over any desired path length along the line. Further, the apparatus is portable and can be used with other camera accessories.




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Lens holder driving device capable of avoiding deleterious effect on hall elements

An AF unit of a lens holder driving device includes a lens holder, a focusing coil, a permanent magnet having a plurality of permanent magnet pieces having first surfaces opposed to the focusing coil, a magnet holder holding the permanent magnet, and first and second leaf springs supporting the lens holder in a direction of an optical axis shiftably. An image stabilizer portion includes a fixed portion disposed near the second leaf spring, a supporting member swingably supporting the AF unit with respect to the fixed portion, an image stabilizer coil having a plurality of image stabilizer coil portions disposed so as to oppose to second surfaces of the plurality of permanent magnet pieces that are perpendicular to the first surfaces, and a plurality of Hall elements. Each Hall element is disposed at a position where the image stabilizer coil portion is separated into a plurality of coil parts.




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Bufferless nonblocking networks on chip

Network on Chips (NoC)s with a bufferless and nonblocking architecture are described. Core processors are communicatively coupled together on a substrate with a set of routing nodes based on nonblocking process. A network component routes data packets through the routing nodes and the core processors via communication links. A bufferless cross bar switch facilitates the communication of the data packets and/or path setup packets through the communication links among source processors and destination processors. The communication links include one or more channels, in which a channel comprises a data sub-channel, an acknowledgement sub-channel and a release sub-channel.




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Electronic apparatus

An electronic apparatus is disclosed. The electronic apparatus includes: an imaging device which converts light into an image signal; a lens unit positioned in front of the imaging device to form an image on the imaging device from light incident from an object; a shutter unit interposed between the lens unit and the imaging device to expose the imaging device to the light incident from the object based on a predetermined exposure time and that includes a shutter curtain that regulates the light incident from the object; and a measurement unit which measures an actual exposure time of the shutter unit. The measurement unit is positioned behind the shutter curtain and includes a light-receiving sensor which receives light incident on the measurement unit from the light incident from the object other than the light of the effective image area incident on the imaging device.




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Continuous film and camera and method thereof

The dual camera allows continuous wireless transmission of image data through radio waves to outside picture processing devices and continuous capture of images on frames of camera film rolls. A radio wave transmission attachment transmits image data though radio waves to outside picture processing devices. Several housing compartments of the dual camera receive camera film rolls. When images are captured on all frames of one camera film roll, a detachable housing compartment door is operable so that the camera film roll may be removed. While the camera film roll is being removed, the dual camera may simultaneously capture images on a remaining camera film roll in a filming position and the radio wave transmission attachment may transmit image data to outside picture processing devices without exposing the camera film roll in the filming position. Alternatively, a cable transmits radio wave image data to outside picture processing devices. An image radio wave converter of the dual camera converts photograph image data into radio wave image data.




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Periphery monitoring apparatus

A periphery monitoring apparatus capable of photographing a vicinity of a vehicle without impairing the outer appearance of the vehicle includes a light source configured to be provided in the vehicle for illuminating the periphery of the vehicle, and a camera photographing a condition of the periphery of the vehicle with an optical axis changed by a mirror toward the underside of the circumferential edge of the vehicle illuminated by at least a portion of light irradiated from the light source reflected by the mirror configured to be disposed on the outer side of the circumferential edge of the vehicle.




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Interchangeable lens camera, camera body, lens unit, and busy signal control method

An aspect of the present invention provides an interchangeable lens camera having a camera body and a lens unit that is freely attachable and detachable to the camera body. In the interchangeable lens camera, a communications unit in the camera body sends via communications terminals (MT_MOSI and MT_MISO) an INTR_BUSY control instruction that instructs whether to make notification with a busy signal (INTR_BUSY signal) for any operation out of a plurality of types of operations that can be executed, and the lens unit or camera body communications unit sets the busy signal (INTR_BUSY) to an ON state (low level) only during the period of operation of the type indicated by the INTR_BUSY control instruction.




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Component cover having variable light transmissivity

In a broad aspect, embodiments described herein are generally directed to an electronic device comprising: a housing; a component mounted within the housing; a component cover in fixed relation to the housing; wherein the component cover is configurable between at least a first state and a second state; and wherein light transmissivity through the component cover is greater when in the second state than when in the first state. In some implementations, in the first state the component cover is substantially opaque, or in the second state the component cover is substantially transparent.




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Method and apparatus for determining linear position using multiple magnetic field sensors

The linear position of an object is estimated using multiple magnetic field sensors and a magnet. The multiple magnetic field sensors are held in fixed relation to one another and in moving relation with respect to the magnet. Readings of the first and second magnetic field sensors and the fixed distance between the first and second magnetic field sensors may be used to estimate the linear position. In some embodiments, an estimated frequency of an approximately sinusoidal field versus position characteristic is also used as part of the estimation.




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Auxiliary user interface for a transmit controller

In an embodiment, a transmit controller compatible with an auxiliary user interface device is provided. The transmit controller has a memory with operational parameters, a control user interface, an auxiliary user interface connector, and a transmit controller processor. The transmit controller processor is configured to transmit the operational parameters to the auxiliary user interface device and modify the operational parameters in accordance with a parameter instruction from the auxiliary user interface device. The transmit controller processor is further configured to receive a control instruction from the control user interface, determine an output signal based on the control instruction and the one or more operational parameters, and transmit the output signal to the model vehicle.




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Managing virtual content based on information associated with toy objects

The system described in this disclosure may be configured to read information stored on toy objects that indicates whether the toy objects have been used and/or are being used with other toy objects, gaming systems, and/or other devices. The system described in this disclosure may be configured to facilitate an association of the information stored on the toy objects with virtual entities in a virtual space, update virtual content associated with the virtual entities, determine relationships between users, and/or other perform other functions based on the information stored on the toy objects. The information stored on the toy objects may be updated responsive to the toy objects being used by users with other toy objects, gaming systems, and/or other devices. The use of the toy objects by users may include two or more users playing together with toy objects and/or playing with gaming systems associated with the toy objects.




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Collapsible balloon cup with attachable inflation air tube

A balloon assembly including a balloon pedestal having a cup attached to a collar and an air tube that can be fixedly attached to a one-way balloon valve. The balloon cup is configured with a plurality of creases that allow it to be folded or otherwise reduced in shape for more economical packaging. The collar and air stem are also oval in shape to further reduce the overall volume of the balloon assembly. The balloon cup can be placed over and secured to the air tube, with the cup supporting the base of the balloon. A rod or similar support can also be placed in the end of the air tube to allow the balloon to be more visible.




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Robotic marionettes on magnetically-supported and highly mobile puppeteer platforms

An apparatus for suspending and positioning marionettes. The apparatus includes a thin, planar support membrane such as a plastic sheet. A tender vehicle is positioned on the upper side of the support membrane. A motor or other drive mechanism selectively positions the tender vehicle relative to the support membrane. The apparatus includes a puppeteer vehicle from which a marionette is suspended. The puppeteer vehicle is positioned proximate to the lower side of the support membrane opposite the tender vehicle. To support the puppeteer vehicle, one or both of the vehicles includes one or more rotatable magnetic elements such that the attractive forces support the weight of the puppeteer vehicle and the marionette. Typically, the puppeteer vehicle is a passive follower, and the drive mechanism of the tender vehicle includes motors to move the magnetic elements and position the tender and following puppeteer vehicle with its marionette to provide a show.




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Modular blow molded shed with connectors

The present invention provides a system, or kit, of blow molded panels having integrally formed connectors which combine to form an enclosure, commonly in the form of a utility shed. The corner sections, roof, wall and floor panels are formed of blow molded plastic with integrally formed connectors to interlock with one another. In one embodiment, the ends of the wall panels have locking plugs that are constructed and arranged to fit into corresponding sockets and slide to an engaged position for interlocking cooperative engagement rigidly connecting the components together.




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Hand manipulated construction vehicle toy

This invention relates to hand manipulated toy construction equipment such as backhoes, trucks, etc. In one embodiment, the truck body is hollow at one end so that the truck may be manipulated by inserting one's arm into the truck body and grasping and manipulating a transverse dowel handle. Spring-loaded means are provided within the truck body and are coupled to the dumper to control the motion of the equipment. A sound module is also provided to simulate construction sounds.




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Simplified modularized contact type of conductive building block

A simplified modularized contact type of conductive building block includes: a brick, at least one pair of conductive pieces, a circuit board and a base. The brick includes at least one pair of studs projected from a top thereof. The conductive piece has an insertion electrode and a connection electrode respectively disposed at two ends thereof and a contact electrode disposed between the insertion electrode and the connection electrode. The conductive pieces are inserted through the insertion through holes of the circuit board. The circuit board includes a positive electrode circuit and a negative electrode circuit respectively contacted with the at least one pair of the conductive pieces. The conductive pieces are further inserted through the through holes of the base. The circuit board and the base are fixed in the brick.




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Assembly kit for creating three-dimensional formations, especially toy structures from prefabricated modular building blocks

An improved set of toy building or construction blocks, each block having a substantially square cross-section and a generally rectilinear configuration. Incorporated into the structure of the individual toy blocks are transversely oriented slots, grooves and protrusions of predetermined size and location. The slots, grooves and protrusions of pre-determined size and location are of either male or female configuration disposed medially along one or more plane of each block. When the male protrusion of one block is introduced perpendicular to the female slot of one end of another block, a frictional engagement is created resulting in a right angle. When the male protrusion of one block is introduced to the female slot in a linear fashion the result is a line segment. Joining a plurality of said toy building or construction blocks using various perpendicular connections in conjunction with linear connections results in the stable formation of construction or geometric structures without the use of fasteners or other connecting elements.




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Vibration powered toy

An apparatus includes a housing, a rotational motor situated within the housing, an eccentric load adapted to be rotated by the rotational motor, and a plurality of legs each having a leg base and a leg tip at a distal end relative to the leg base. The legs are coupled to the housing at the leg base and include at least one driving leg constructed from a flexible material and configured to cause the apparatus to move in a direction generally defined by an offset between the leg base and the leg tip as the rotational motor rotates the eccentric load.




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Magnetic module and construction kit

A toy construction kit has a plurality of magnetic modules, each with a housing having a plurality of sides, each side having an internal hollow. A magnet is contained within each of the hollows at a given polar orientation relative to the housing and the hollow. The hollow has dimensions that permit the magnet to move within the hollow, but substantially constrains the magnet to the given polar orientation relative to the housing. When a side of a module is placed near a side of another module, they are bound by magnetic attraction by the respective aligned magnets, either because the polar orientations are opposite when they are initially juxtaposed or due to shifting of one or both magnets in their respective hollows to achieve relative polar opposition.




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Toy construction system having a rotatable connector/spinner device

A toy construction system is provided that includes, in a toy construction system having a multiplicity of interconnecting members adapted for constructing a variety of projects, a rotator head device including a device housing having a conical-shaped cavity formed therein. The housing includes a plurality of female twist-lock connectors formed on the outer surface thereof, and the female connectors are adapted for attaching a first member of the toy construction system to the rotator head device housing. A rotating member, which is conical in shape and slightly smaller in size than the cavity formed in the device housing is included. The rotating member is rotatably disposed within the cavity and has a male twist-lock connector stem extending from an end thereof for connecting a second member of the toy construction system to the rotating member, whereby the first member is rotatable with respect to the second member.




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Money saving system

A system for facilitating the saving of money including a container having a slot disposed through a top surface of the container. The system includes a hinged door, a hook member, and a locking device. The system includes a slot sensor module configured to sense objects passing through the slot; and a hook sensor module configured to sense utilization of the hook member. The system includes an audio module configured to provide audio broadcasts. The system includes a control module configured to provide operational controls to the modules of the system. The control module includes a timing module and program module, the program module including an instruction set providing for an audio broadcast of the audio module triggered by a predetermined association of a sensor event and the passing of a predetermined period of time. The system includes a first bag and a second bag configured to store money.




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Convertible headgear

Headgear that can be converted into another object, comprising a figurine provided with a hollow base which, in at least one configuration, defines an object including a volume for receiving an element. In a second configuration, the hollow base can be turned partially inside out to form a second object including another reception volume and, in a third configuration, the hollow base can be turned fully inside out to form a third object.




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Action figures with slide devices and methods of use

In some embodiments, a kit includes a slide device and an action figure coupled to the slide device. The kit also includes a tool configured to modify a shape of a base material such that a path that has a non-zero height is defined within the base material. The action figure and the slide device can collectively slide down at least a portion of the path when disposed on the path. The base material can be, for example, snow or sand. In some embodiments, the tool can include tool body having a length dimension, a width dimension and a height dimension. The length dimension can be greater than the width dimension and the height dimension can be greater than at least half a height dimension of the slide device and the action figure collectively. A handle can be coupled to the tool body.




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Moldable sand compositions and methods for making the same

The present invention relates to moldable sand compositions, methods for making the moldable sand compositions, and methods for using the moldable sand compositions. In a particular embodiment, the moldable sand composition comprises between about 70% to about 95% sand, between about 5% to about 30% water, a polar polymeric resin, a crosslinking agent, and a humectant. In an exemplary embodiment, the composition contains no oils, waxes, glycols, or rubbers. The composition is capable of becoming hardened over time in order to maintain the achieved shape, and can be re-wetted and molded again after becoming hardened.




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Model helicopter attitude control and receiving device with reduced size and self-learning features

A model aircraft control and receiving device in a housing, comprising an electronic, gyroscopic multi-axis programmable flight attitude controller, having control inputs for a plurality of control channels and inputs for gyroscope signals, wherein the flight attitude controller provides at least one input for a receiver module disposed inside or outside of the housing of the flight attitude controller. The device may be used in a method for controlling and stabilizing a model helicopter, wherein the control comprises a self-learning function and/or the control comprises a coupling of the tail controller to the swashplate controller and/or the control comprises a stopping support function.




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Action figure with accessories

A toy is provided, the toy having: an action figure with a pair of appendages movably secured thereto for movement between a first separated position and a second un-separated position; a pair of accessories removably secured to the pair of appendages; and wherein the pair of accessories are configured to be secured to each other and form an item when the pair of appendages are in the second un-separated position and the pair of accessories are secured to the pair of appendages.




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Driving and controlling method for biomimetic fish and a biomimetic fish

An aquatic toy that is a biomimetic fish with a watertight body portion. The body portion contains a battery electrically connected via a controller to at least one coil. The coil is positioned relative to a magnet and the coil can be caused to oscillate by virtue of a controller defined alternating current passing through the coil. The oscillation of the coil causes movement of a tail fin that is engaged to said watertight body to cause the fish to move forward through a body of water.




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Multi-color harmonic synthesized laser system for laser processing and laser processing method using multi-color harmonic synthesized laser

A multi-color harmonic synthesized laser system for laser processing and a laser processing method using multi-color harmonic synthesized laser are disclosed. The multi-color harmonic synthesized laser system includes a laser source for providing a single laser wave, a converter for converting the single laser wave into a plurality of harmonic waves with different frequencies, and a modulating unit for modulating amplitudes and relative phases of the harmonic waves to form a plurality of modulated harmonic waves, so as to synthesize the modulated harmonic waves as a single synthesized laser wave, wherein the single synthesized laser wave is focused on an object to perform a laser processing. The converter includes a plurality of non-linear crystals for converting the single laser wave into a fundamental harmonic wave and a plurality of multi-frequency harmonic waves. The harmonic waves are coherent and collinear, and the phases of the harmonic waves are related to one another.




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Temperature measurement and control for laser and light-emitting diodes

The existing diodes in an LED or laser diode package are used to measure the junction temperature of the LED or laser diode. The light or laser emissions of a diode are switched off by removing the operational drive current applied to the diode package. A reference current, which can be lower the operational drive current, is applied to the diode package. The resulting forward voltage of the diode is measured using a voltage measurement circuit. Using the inherent current-voltage-temperature relationship of the diode, the actual junction temperature of the diode can be determined. The resulting forward voltage can be used in a feedback loop to provide temperature regulation of the diode package, with or without determining the actual junction temperature. The measured forward voltage of a photodiode or the emissions diode in a diode package can be used to determine the junction temperature of the emissions diode.




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Conduction cooled high power semiconductor laser and method for fabricating the same

A conduction cooled high power semiconductor laser and a method for fabricating the same are provided. The conduction cooled high power semiconductor laser comprises a heat sink (2) and one or more semiconductor laser units (1). The semiconductor laser unit consists of a laser chip (3), a substrate (4) bonded to the laser chip for heat dissipation and electrical connection, and an insulation plate (5) soldered to the substrate for insulation and heat dissipation. The semiconductor laser unit is soldered on the heat sink with the insulation plate therebetween. The semiconductor laser unit may be tested, aged, and screened in advance, and thereby the yield of the lasers can be improved and the manufacturing costs can be reduced. The laser has desirable heat dissipation performance, high reliability, and is applicable to high temperature and other complex and volatile environments.




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Interposer configuration with thermally isolated regions for temperature-sensitive opto-electronic components

An interposer (support substrate) for an opto-electronic assembly is formed to include a thermally-isolated region where temperature-sensitive devices (such as, for example, laser diodes) may be positioned and operate independent of temperature fluctuations in other areas of the assembly. The thermal isolation is achieved by forming a boundary of dielectric material through the thickness of the interposer, the periphery of the dielectric defining the boundary between the thermally isolated region and the remainder of the assembly. A thermo-electric cooler can be used in conjunction with the temperature-sensitive device(s) to stabilize the operation of these devices.




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Circuitry and method for driving laser with temperature compensation

A temperature-compensated laser driving circuit for driving a laser component is provided. The temperature-compensated laser driving circuit includes: a temperature compensation circuit, configured to generate a second current based on a first current and a temperature-independent current; and a modulation current generating circuit, configured to generate a modulation current based on the second current, and calibrate optical power output of the laser component based on the modulation current. The first current is proportional to the absolute temperature. The second current and the first current have a slope relative to the absolute temperature respectively, and the slope of the second current relative to the absolute temperature is larger than of the slope of the first current relative to the absolute temperature.




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Laser optic protection

The specification and drawings present an apparatus and a method for protecting lasers or other sources of high optical power from damage due to external sources of contamination using a concept of a sacrificial optical component and automatic laser shutdown based on a pressure indication of a substantial damage to the sacrificial optical component such as puncturing through that component.




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Optical semiconductor device and method of manufacturing optical semiconductor device

A method of manufacturing an optical semiconductor device including: forming a mesa structure including a first conductivity type cladding layer, an active layer and a second conductivity type cladding layer in this order on a first conductivity type semiconductor substrate, an upper most surface of the mesa structure being constituted of an upper face of the second conductivity type cladding layer; growing a first burying layer burying both sides of the mesa structure at higher position than the active layer; forming an depressed face by etching both edges of the upper face of the second conductivity type cladding layer; and growing a second burying layer of the first conductivity type on the depressed face of the second conductivity type cladding layer and the first burying layer.




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Echelle diffraction grating and its manufacturing method, excimer laser and its manufacturing method

A manufacturing method for an excimer laser that includes a reflective Echelle diffraction grating includes obtaining information of a wavelength of a light source, a blazed order, a repetitive pitch of the grating, a material of the grating, and a predefined orientation ratio B/A that is a ratio between that a diffraction efficiency A of the blazed order and a diffraction efficiency Bb of an order lower by one order than the blazed order, and determining an initial value of a blaze angle based upon these pieces of information.




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Resonator with intracavity transformation of a Gaussian into a top-hat beam

The invention relates to an optical resonator, laser apparatus and a method of generating a laser beam inside an optical resonator. The optical resonator (100) includes an optical cavity (102) and an optical element (104.1, 104.2) at either end thereof, operable to sustain a light beam (108) therein, characterized in that each optical element (104.1, 104.2) is a phase-only optical element operable to alter a mode of the beam (108) as it propagates along the length of the optical resonator (100), such that in use the beam (108) at one end of the optical resonator (100) has a Gaussian profile while the beam (108) at the other end of the optical resonator (100) has a non-Gaussian profile.




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Vibration resistant optically pumped semiconductor laser

An intra-cavity frequency doubled OPS-laser includes a laser-resonator terminated by a plane mirror and a mirror-structure of an OPS-chip. The resonator is folded by three fold-mirrors. The fold-mirrors are supported on a vibration-isolation plate supported by isolation posts above a base-plate. The plane mirror and the mirror-structure of the OPS-chip are mounted back to back on opposite parallel surfaces of a mounting block. The mounting-block is supported on the base-plate and extends through an aperture in the vibration-isolation plate. Movement of the vibration-isolation plate with respect to the base-plate does not change the resonator length.