de Blanking die with device for replacing at least one punch By www.freepatentsonline.com Published On :: Tue, 03 Jun 2014 08:00:00 EDT A sheet metal blanking die has a lower and an upper part and guide columns for maintaining the parts aligned. The upper part presents a plurality of punches which project downwards from it, when the die is closed by a press. Recesses are present on the flat lower portion to receive the respective punches at the moment of blanking. For one punch a rapid replacement device can be provided, including a chamber within which a loader can move presenting two cavities of vertical axis to receive relative punches. By moving the loader a punch can be selected for transfer from a rest position to an operative blanking position. Full Article
de Sheet hole punching device By www.freepatentsonline.com Published On :: Tue, 08 Jul 2014 08:00:00 EDT A sheet hole punching device has a device frame bearing-supporting a plurality of punching members, a driving rotation shaft, a drive motor, a gear mechanism transmitting a rotation of the driving rotation shaft, cam mechanisms converting the rotational movement into vertical movement, and a motor control device. The gearing mechanism includes drive gears fixed on the driving rotation shaft and receiving gears to engage with the drive gears to transmit the rotational movement to the punching members. The cam mechanism includes cylindrical cams formed integrally to the punching members and cam followers fixed to the device frame. The cylindrical cams are provided with V-shaped groove cams to reciprocate the punching members between an upper dead point and a lower dead point. The punching members are rotated in one direction to punch holes in a sheet, and subsequently rotated in a reverse direction to punch holes in a following sheet. Full Article
de Sheet hole punching device By www.freepatentsonline.com Published On :: Tue, 08 Jul 2014 08:00:00 EDT A sheet hole punching device has a device frame; a plurality of punching members arranged in first and second groups, and arranged linearly on the device frame; a driving rotation shaft; a driving motor reciprocally rotating the driving rotation shaft; a gear mechanism transmitting a rotation of the driving rotation shaft; cam mechanisms converting the rotational movement; and a motor control device. The gearing mechanism includes drive gears disposed on the drive rotational shaft, and receiving gears disposed on the punching members to engage with the drive gears. The cam mechanisms include cam followers and cylindrical cams. The cylindrical cam has a V-shaped groove cam to reciprocate each of the punching members between an upper dead point and a lower dead point. The punching members are rotated in one direction to punch holes in first sheets, and subsequently rotated in a reverse direction to punch holes in following sheets. Full Article
de Preservation of the biological activity of undenatured type II collagen By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT The instant invention is the storage of Type II collagen containing tissue in carbonated water. Such Type II collagen is useful for alleviating the symptoms of arthritis in mammals as well as the treatment of arthritis in mammals. Such Type II collagen is also useful for the prevention of arthritis in mammals. The instant invention is also a method for the preparation of a nutritional supplement that includes the steps of: (a) separating water-insoluble undenatured Type II collagen containing animal tissue from animal tissue not containing Type II collagen; (b) subdividing and sterilizing said tissue under conditions which do not change the original structure of the Type II collagen to produce a subdivided and sterilized product; (c) packaging the subdivided and sterilized product in carbonated water. Full Article
de Mass distribution device and molding device By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The present invention relates to an mass distribution device for supplying a mass of foodstuff starting material to one or more cavities of a mold drum for molding products from the mass, comprising a base member which extends partially around the outer cylindrical circumference of the drum and which has an introduction area through which the mass is the fed to the cavities. The invention further relates to a molding device and to a process for operating the inventive mass distribution device. Full Article
de Method of preparing soybean mixed powder, method of preparing a solidified soybean food, and a method of preparing a packaged raw material for preparing a solidified soybean food By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A method of preparing soybean mixed powder comprising a soybean powder having properties wherein formation of agglomerate is small when the powder is added to water and then heated with stirring to dissolve the powder. Full Article
de Method and system for treating food items with an additive and solid carbon dioxide By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Embodiments of the invention generally provide methods and systems that distribute an additive in solid carbon dioxide in an interior of food processing equipment. The additive may be injected into a flow of liquid carbon dioxide upstream of an expander at or adjacent to the interior. Injection of the additive into the interior may be alternated with directing a flow of expanded carbon dioxide into the interior. In some embodiments, the freezing point of the additive with or without a diluent composition and/or additive(s) is lower than a temperature of the liquid carbon dioxide. Full Article
de Flavoring substance-included cellulose By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention concerns a flavoring substance-included cellulose, comprising or consisting of cellulose and flavoring substances included in the cellulose, methods for producing such flavoring substance-included celluloses, and mixtures comprising flavoring substance according to the invention. Full Article
de 6'-sialyllactose salts and process for their synthesis and for the synthesis of other alpha-sialyloligosaccharides By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention relates to a process of synthesis of α-sialyl oligosaccharides and in particular of 6'-sialyllactose and its salts comprising a step of coupling by Koenigs-Knorr reaction under conditions that allow its use on an industrial scale. Full Article
de Method to develop high oleic acid soybeans using conventional soybean breeding techniques By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention is directed to a soybean plant with mutations in FAD2-1A and FAD2-1B. Moreover, the present invention is directed to seeds from said plants with altered ratios of monosaturated and polyunsaturated fats. In particular, the present invention is directed to plants where the plants exhibit elevated levels of oleic acid. Full Article
de Shortening particle compositions and dough products made therefrom By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The invention relates to shortening particle compositions that are suitable for use in preparing batter or dough products such as biscuits, pizza crusts, pot pie crusts, cinnamon rolls, or dry mixes for same. Typically, the shortening compositions are low in trans fatty acids and in saturated fatty acids. For example, the shortening particle composition may comprise less than about 3% wt. total trans fatty acids and a total of about less than about 61% wt. saturated fatty acids and trans fatty acids. Full Article
de Laccase for detoxification of feed products By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention relates to a method for detoxification of feed products contaminated by the mycotoxin zearalenone. Full Article
de Nutritional products including monoglycerides and fatty acids By www.freepatentsonline.com Published On :: Tue, 14 Jul 2015 08:00:00 EDT Disclosed are nutritional formulations including predigested fats that can be administered to preterm infants, infants, toddlers, and children for improving tolerance, digestion, and absorption of nutrients and for reducing the incidence of necrotizing enterocolitis, colic, and short bowel syndrome. The predigested fats include fatty acid-containing monoglycerides and/or a fatty acid component. Full Article
de Laser-welded joint structure between insulation frame and bearing cup of fan and method of forming same By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A laser-welded joint structure between insulation frame and bearing cup of fan includes a base having a bearing cup and a stator having at least one insulation frame. The insulation frame includes a sleeve portion defining a bore axially extending therethrough. The sleeve portion is provided on an inner wall surface with at least one pressing section that radially projects into the bore to press a lower side against an upper end of the bearing cup and a bearing received therein. A portion of at least one lateral side of each pressing section that is in contact with the upper end of the bearing cup is melted by laser beam to form a laser-welded joint, so that the insulation frame and the bearing cup are integrally connected together at reduced manufacturing cost and have increased structural strength. A method of forming the laser-welded joint structure is also disclosed. Full Article
de Fluid control device By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A fluid control device includes a vibrating plate unit, a driver, a flexible plate, and a base plate. The vibrating plate unit includes a vibrating plate including first and second main surfaces, and a frame plate surrounding the surrounding of the vibrating plate. The driver is bonded to the first or the second main surface of the vibrating plate and vibrates the vibrating plate. The flexible plate includes a hole provided therein, and is bonded to the frame plate so as to face the vibrating plate. The base plate is bonded to the main surface of the flexible plate on a side opposite to the vibrating plate. A size relationship between the coefficients of linear expansion of the material of the base plate and the frame plate is equal to a size relationship between the coefficients of linear expansion of the material of the vibrating plate and the driver. Full Article
de Air pump having an auto-stop control device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An air pump includes a casing, a blower connected with a motor, an air flow direction switching device, an air valve, and an auto-stop control device. The air flow direction switching device includes a pressure sensor and a pressure switch. The air flow direction switching device includes a movable box and a driving device which drives the movable box. The movable box has an arm and an activation portion. An inflation switch and a deflation switch are electrically connected in parallel to a circuit and are controlled to activate by the activation portion. The pressure switch includes a dynamic contact point connected to the motor, and two static contact points respectively electrically connected to the inflation switch and the deflation switch. The dynamic contact point has a terminal which alternatively contacts the two static contact points. Full Article
de Centrifugal blower with asymmetric blade spacing By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A centrifugal blower in a cooling system of an electronic device having asymmetrical blade spacing with acceptable balance. The asymmetrical blade spacing is determined according to a set of desired acoustic artifacts that are favorable and balance that is similar to that found with equal fan blade spacing. In one embodiment, the fan impeller can include thirty one fan blades. The perceived sound quality from the fan is improved with essentially no effect on the thermal performance of the fan. Full Article
de Ceiling fan with suspension detection By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT 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. Full Article
de Camera system and focus detecting method By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A camera system according to the present invention, comprising: an interchangeable lens comprising: a zoom position detecting section configured to detect a zoom position corresponding to a focal length of the photographing optical system; and a lens control section configured to input the zoom position and transmit it to the camera body, and a camera body comprising: a body control section configured to communicate with the lens control section, a focus detecting section configured to detect an in-focus position of a focus lens included in the photographing optical system, and a zoom position memory section configured to memorize the zoom position which is transmitted from the lens control section and received by the body control section, wherein when transmitting the in-focus position to the lens control section, the body control section transmits the memory zoom position memorized in the zoom position memory section to the lens control section. Full Article
de Camera protection module for portable device case By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT 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. Full Article
de Camera module with threadless lens barrel engagement design By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A camera module with a lens barrel containing a lens, and a lens carrier that slidably receives the lens barrel. Each of the exterior surface of the lens barrel and the interior surface of the lens carrier include a seating surface formed thereon. One of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of protrusions for controlling the relative position of the lens barrel and the lens carrier. The other of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of channels that are sized and arranged so as to slidably receive the protrusions to allow for the lens barrel to be slid into the lens carrier. The channels also each include a transverse section to allow the lens barrel to be pivoted about an optical axis of the lens barrel. Full Article
de Imaging apparatus, flash device, and control method thereof By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT 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. Full Article
de Wireless camera apparatus and wireless camera device By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A wireless camera apparatus includes a power supply track and a wireless camera device detachably installed on the power supply track. The wireless camera device has a camera module and a linking module fixed on the camera module. The linking module has a connecting unit and a conductive unit electrically connected to the camera module. When the wireless camera device is installed on the power supply track, the connecting unit is coupled to the power supply track, and the conductive unit is electrically connected to the power supply track. Thus, the instant disclosure provides the wireless camera apparatus, which is adjustable to any position of the power supply track according to the user's demand. Besides, the instant disclosure further provides a wireless camera device. Full Article
de Viewfinder and imaging apparatus including the same By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A viewfinder 3 includes a finder optical system S2 including first and second lens groups L1, L2; a zoom frame 6 provided with first and second cam grooves 63, 64 configured to rotate about an optical axis A2 to move the first and second lens groups L1, L2 in the optical axis direction in accordance with the shapes of the first and second cam grooves 63, 64; and a diopter adjuster 9 configured to adjust the diopter of the finder optical system S2. The diopter adjuster 9 changes the position of the zoom frame 6 in the optical axis direction to adjust the diopter of the finder optical system S2, and adjusts, during rotation of the zoom frame 6, the position of the zoom frame 6 in the optical axis direction such that the diopter of the finder optical system S2 is maintained. Full Article
de Frame and insert for mounting a mobile device to a tripod By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An apparatus for mounting a mobile device on a tripod includes a frame with a rigid peripheral member defining an opening therethrough. The peripheral member includes a mount configured to releasably couple the frame to the tripod. An insert is sized and shaped to be placed into the opening of the frame and releasably engage at least a portion of the peripheral member in an assembled configuration. The insert has a membrane in the form of a cavity configured to releasably receive and support the mobile device. The membrane extends over at least a portion of the opening of the frame in the assembled configuration and includes at least one camera hole extending therethrough that is aligned with a camera lens of the mobile device when the mobile device is mounted in the cavity. Full Article
de Motion control device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT 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. Full Article
de Reducing light damage in shutterless imaging devices By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method of reducing light damage in a shutterless imaging device includes receiving a signal from a hardware device. The signal from the hardware devices is analyzed. In response to the analysis of the signal from the hardware device, a lens of the shutterless imaging device is adjusted. Adjusting the lens spreads out energy of far-field image light incident on an image sensor of the shutterless imaging device. Full Article
de ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***Image sensing and printing device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An image sensing and printing digital camera device includes a housing defining a slot for receiving a printed instruction card having printed thereon an array of dots representing a programming script, the housing further storing therein a roll of print media; an area image sensor for sensing an image and generating pixel data representing the image; a linear image sensor for scanning the array of dots on the card and converting the array of dots into a data signal; a microcontroller provided in the housing, the microcontroller for decoding the data signal into the programming script and applying the programming script on the pixel data; and a printing mechanism for printing the pixel data, having applied thereto the programming script, on the roll of print media. The microcontroller integrates on a single chip a VLIW processor, a printhead interface, and an output buffer effecting communication between the VLIW processor and the printhead interface. Full Article
de Lens holder driving device capable of avoiding deleterious effect on hall elements By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT 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. Full Article
de Holding device for a camera By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The invention pertains to a device which allows a person to hold a camera with a first arm (10) which extends longitudinally in the first extension direction (E). The first arm (10) is designed to be attached to or detached from the camera (2) and features a first free end (100) and a chin rest surface (21) provided on that first free end (100). The chin rest surface (21) is designed to rest on the chin (K) of the person (P) holding the camera (2). A second arm (30) extends from the first arm (10) along the second extension direction (E') and features a free end (31) where a grip area (32) is provided. This grip area (32) is designed to allow a person (P) to grasp the camera with one hand (H) using the device (1) and is kept separate from the chin rest surface (21) along the first extension direction (E). Full Article
de Focal plane shutter and optical device By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A focal plane shutter includes: first, second, and third boards respectively including openings through which light enters an image pickup element from an object side, and arranged in this order from the object side toward the image pickup element side; a blade arranged between the first and second boards and capable of opening and closing the openings; and a holding member arranged between the second and third boards, not coupled to the blade, and holding the second board from the image pickup element side. Full Article
de Method and apparatus for determining linear position using multiple magnetic field sensors By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT 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. Full Article
de Gravity-slowing self propelling game device By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The game device for a user including a flexible closure for receiving impacts from the user, one or more filler placed inside the flexible closure for reducing recoiling of the flexible closure from the surface on receiving impacts, a mechanical unit attached to the inner walls of the flexible closure and a gravity slowing unit attached to the mechanical unit for reducing the gravitational pull acting on the flexible closure. The mechanical unit includes an electric motor for providing torque, an impact sensor for sensing the impacts received from the user, and a power source for energizing the electric motor and the impact sensor. The gravity slowing unit includes a spring-loaded hinge for stabilizing the flexible closure from impacts projected by the user, a spring-loaded shaft connected to the electric motor through the spring-loaded hinge for rotating to rotate on receiving torque from the electric motor and at least one set of propellers connected to the spring-loaded shaft for the receiving torque and providing thrust against gravitational pull acting on the flexible closure. Full Article
de Developmental activity gym for babies By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A developmental toy for infants including an infant support surface having an open and a folded operative orientation, a first pair of circumferential elements associated therewith and having an open and a folded operative orientation and a second pair of elements, generally similar in configuration to the first pair of circumferential elements, arranged to support toy objects above the infant support surface and having an open and a folded operative orientation and a locking assembly for selectably locking the first and second pairs of circumferential elements in their respective open operative orientations, the open operative orientation of the infant support surface being an angular separation of 180 degrees, the open operative orientation of the first pair of circumferential elements being an angular separation of 180 degrees and the open operative orientation of the first pair of circumferential elements being an angular separation of substantially less than 180 degrees. Full Article
de Modular blow molded shed with connectors By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT 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. Full Article
de Game calling device having varied pitch and intensity By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT A game calling device including a mouthpiece having inlet and outlet portions and holes between the inlet and outlet portions, whereby sounds having varied pitch and intensity can be generated. The game calling device also includes an inner tubular member that at least partially houses a reed and configured to be selectively positioned on the axial direction of the reed so that the emitted sound can be varied based at least on the position of the inner tubular member along the reed and thereby allowing the game calling device to be used hands-free. Full Article
de Toy construction system having a rotatable connector/spinner device By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT 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. Full Article
de Action figures with slide devices and methods of use By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT 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. Full Article
de Model helicopter attitude control and receiving device with reduced size and self-learning features By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT 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. Full Article
de Broadband short pulse fiber lasers capable of generating output spectra broader than gain bandwidth By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Implementations and examples of fiber lasers based on fiber laser cavity designs that produce self-similar pulses (“similaritons”) to achieve a pulse spectral bandwidth greater than a gain spectral bandwidth based on a spectral broadening fiber segment and a spectral filter to ensure the proper similariton conditions. Full Article
de Temperature measurement and control for laser and light-emitting diodes By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT 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. Full Article
de Low inductance laser diode bar mount By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The laser mount arrangement can have a laser bar and a driver positioned adjacent to one another and secured against a connection face of a heat sink base. The heat sink base is connected to and forms a first electrical connection between the laser bar and the driver. A second electrical connection is also provided between the laser bar and the driver opposite the heat sink base, which can be in the form of a flexible metal sheet with a narrow upward fold. This arrangement can provide a low inductance path for the current. Full Article
de Hyperbolic metamaterials as distributed bragg mirrors for high power VCSEL devices By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Implementing a layered hyperbolic metamaterial in a vertical cavity surface emitting laser (VCSEL) to improve thermal conductivity and thermal dissipation thereby stabilizing optical performance. Improvement in the thermal management and power is expected by replacing the distributed Bragg reflector (DBR) mirrors in the VCSEL. The layered metamaterial structure performs the dual function of the DBR and the heat spreader at the same time. Full Article
de Optical semiconductor device and method of manufacturing optical semiconductor device By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT 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. Full Article
de Heat dissipation device of light engine with fan module and heat sink By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A heat dissipation device of a light engine for a projector has a housing, a fan module, a light engine and a heat sink. The light engine is positioned in the housing and connected to the heat sink. The heat sink is positioned out of the housing. The housing has a fan-enclosed flow channel attached on an outer surface of the housing. The fan module is guided by the fan-enclosed flow channel to the heat sink to enhance heat dissipation efficiency of the light engine for the projector. Full Article
de Light generation device and light generation method By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A terahertz light generation device 1 comprises a resonator structure 12 for intensifying incident light and outputting the intensified light and laser oscillation units 10, 11 for feeding the incident light into the resonator structure 12. The incident light comprises first and second incident light components having polarization states different from each other and frequencies different from each other. The laser oscillation units 10, 11 feed the resonator structure 12 with the first and second incident light components at an angle inclined from a principal surface in the resonator structure 12. The resonator structure 12 outputs light having a frequency corresponding to the difference between the respective frequencies of the first and second incident light components. Full Article
de Slab amplification device, laser apparatus, and extreme ultraviolet light generation system By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An EUV light generation system includes a driver laser comprising a master oscillator such as a semiconductor laser, a spatial filter, gas slab amplification devices, relay optical systems, and high-speed axial-flow amplifiers. The slab amplification devices include beam adjusting optical units disposed, respectively, at input and output sides of the slab amplifiers SA to convert the beam profile and/or polarization direction and/or an elongated direction of the beam profile with the slab amplifiers is parallel to a free space axis AF of the slab waveguides, i.e. parallel to the discharge electrodes. Full Article
de High power single mode ytterbium fiber laser system with single mode neodymium fiber pump source By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A high power fiber laser system emitting a substantially diffraction limited beam with a Gaussian intensity profile includes a single mode (“SM”) neodymium fiber pump source outputting a SM pump light; a seed laser operative to emit a SM signal light at a wavelength greater than that of the pump light; a SM DWM receiving and multiplexing the SM pump and signal lights. The disclosed system further includes a booster fiber amplifier which is configured with a frustoconically-shaped ytterbium (“Yb”) doped core receiving the pump and signal lights and configured with a small diameter input end which supports only a SM and a large diameter output end which is capable of supporting the SM and high order modes (:HOM”). The booster further has a cladding surrounding and coextending with the core, the core being configured for having intensity profiles of respective SMs of pump and signal lights overlap one another so that an overlap integral substantially equals to one (1) along an entire length of the core. The SM of the light signal extracts substantially the entire energy from the pump mode leaving the HOMs without amplification necessary to affect a quality of the diffraction limited beam of the system in a MW peak power range and hundreds of watt average power range. Full Article
de Method for fabricating group-III nitride semiconductor laser device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method for fabricating a group-III nitride semiconductor laser device stably supplies laser cavity mirrors having a low lasing threshold current through the use of a semi-polar plane. A blade 5g is forced down through a first region ER1 to keep the first region ER1 squeezed between a support member H2 and a movable member H1 together with a part of a protective sheet TF in contact with the first region ER1 while the tension generated in the area of the protective sheet TF in contact with the first region ER1 with the movable member H1 increases until the semi-polar principal surface SF at an end face EG1 of the first region ER1 tilts by a deflection angle THETA from the semi-polar principal surface SF of a second region ER2, and a force is thereby generated in the first region ER1 in a direction opposite to the direction of travel of the blade 5g toward the first region ER1. For example, an angle ALPHA is within the range of 71 degrees to 79 degrees, and the deflection angle THETA is within the range of 11 to 19. Full Article
de Tensile strained semiconductor photon emission and detection devices and integrated photonics system By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Tensile strained germanium is provided that can be sufficiently strained to provide a nearly direct band gap material or a direct band gap material. Compressively stressed or tensile stressed stressor materials in contact with germanium regions induce uniaxial or biaxial tensile strain in the germanium regions. Stressor materials may include silicon nitride or silicon germanium. The resulting strained germanium structure can be used to emit or detect photons including, for example, generating photons within a resonant cavity to provide a laser. Full Article