Abstract: A biomimetic waterfowl includes a housing, two waterfowl legs, and a driving module. The waterfowl legs are spaced apart from each other in a left-right direction and are mounted to a bottom portion of the housing. Each waterfowl leg includes a first segment mounted to the housing and rotatable about a first axis parallel to the left-right direction, and a second segment rotatable about a second axis parallel to the first axis. The driving module is mounted to the housing and is configured to drive the waterfowl legs. Each of the waterfowl legs is movable between a retracted state, where the first segment extends forwardly from the housing and the second segment extends rearwardly from the first segment, and a propelling state, where the first segment extends rearwardly from the housing and the second segment extends rearwardly from the first segment.

Abstract: A surface-emitting laser device with a conductive thin film includes a first mirror layer, an active layer, a P-type conductive layer, an insulating layer, a thin film structure and a second mirror layer. The active layer is located on the first mirror layer. The P-type conductive layer is located on a surface of a part of the active layer. The insulating layer is located on the first mirror layer and covers the P-type conductive layer, and the insulating layer is provided with a light-emitting hole corresponding to the P-type conductive layer. The thin film structure has conductivity and light transmission. The thin film structure includes a filling part and a covering part. The filling part fills the light-emitting hole and the covering part is located on the insulating layer. The second mirror layer is located on the thin film structure and corresponds to the light-emitting hole.

Abstract: A surface emitting laser apparatus and a method for manufacturing the same are provided. The surface emitting laser apparatus includes a first reflector layer, an active light-emitting layer, a second reflector layer, and a current confinement structure. The active light-emitting layer is disposed between the first reflector layer and the second reflector layer, so as to produce a laser beam. The current confinement structure has one P-N junction or one PIN junction.

Abstract: A surface emitting laser apparatus and a method for manufacturing the same are provided. The surface emitting laser apparatus includes a first reflector layer, an active light-emitting layer, a second reflector layer, and a current confinement layer. The active light-emitting layer is disposed between the first reflector layer and the second reflector layer, so as to produce a laser beam. The current confinement layer is disposed above or below the active light-emitting layer. The current confinement layer is a semiconductor layer, and an energy gap width of the current confinement layer is greater than an energy gap width of the active light-emitting layer.

Abstract: A surface emitting laser apparatus and a method for manufacturing the same are provided. The surface emitting laser apparatus includes a first reflector layer, an active light-emitting layer, a second reflector layer, and a current confinement layer. The active light-emitting layer is disposed between the first reflector layer and the second reflector layer, so as to produce a laser beam. The current confinement layer is disposed above or below the active light-emitting layer. The current confinement layer is a semiconductor layer, and an energy gap width of the current confinement layer is greater than an energy gap width of the active light-emitting layer.

Abstract: A surface emitting laser apparatus and a method for manufacturing the same are provided. The surface emitting laser apparatus includes a first reflector layer, an active light-emitting layer, a second reflector layer, and a current confinement structure. The active light-emitting layer is disposed between the first reflector layer and the second reflector layer, so as to produce a laser beam. The current confinement structure has one P-N junction or one PIN junction.

Abstract: A vertical cavity surface emitting laser (VCSEL) and a method for fabricating the same are provided. The VCSEL includes an epitaxial laminate, a lower electrode layer, an upper electrode layer and a current spreading layer. The epitaxial laminate at least includes a first reflector, a second reflector, and an active layer disposed therebetween for generating an initial laser beam. The upper and lower electrode layers jointly define a current path passing through the active layer, and the upper electrode layer has an aperture for defining a light-emitting region. The current spreading layer disposed on the second reflector and electrically connected to the upper electrode layer includes a plurality of beam splitting structures positioned at a light emergent side thereof, and the beam splitting structures is located in the aperture so that the initial laser beam is divided into a plurality of sub-beams.

Abstract: The present invention provides a stacked LED array structure, comprising a substrate and a plurality of LED dies stacked on the substrate in turn. Each LED die comprises a first semiconductor layer and a second semiconductor layer. The first semiconductor layer is provided thereon with a first electrode and stacked with the second semiconductor layer, while the second semiconductor layer is provided thereon with a second electrode and stacked with the first semiconductor layer of another LED die. The second electrode of each LED die is connected to the first electrode of another LED die in series via a metal layer to from an LED array. A plurality of LED dies may be stacked to be an LED array in a stacked manner, resulting in not only easy manufacturing, but also an effectively reduced volume for arranging the whole LED array.

Abstract: An optical lens for modulating light generated by a surface-emitting laser chip is disclosed. The optical lens includes a main body with a recess. A bottom surface of the recess is configured with a light-entering curved face, and an outer surface of the main body opposite to the bottom surface is configured with a light-existing curved face. Here, the recess is for accommodating the surface-emitting laser chip, and the surface-emitting laser chip is arranged a distance from the light-entering curved face. A light-emitting module adopting the aforementioned optical lens is also provided. The aforementioned optical lens would cause the incident light to first diverge and then converge at a predetermined angle, so that the output illuminating light is more uniform and the projecting distance is extended.

Abstract: A package structure of a concentrated photovoltaic cell includes a ceramic baseplate whereon a cavity is formed, the cavity having two opposite internal walls respectively having staircase structures, each having an upper step and a lower step; a photovoltaic chip disposed on a bottom surface of the cavity; a first electrode circuit penetrating the ceramic baseplate and with a top end electrically connected to the photovoltaic chip; a second electrode circuit penetrating the lower steps on the two sides of the ceramic baseplate and connecting with the photovoltaic cell through bonded wires; and a transparent cover disposed on the upper steps for covering the cavity and the photovoltaic chip. A fabrication method for the aforementioned package structure is also provided. The aforementioned package structure has the advantages of being more efficient in heat dissipation and effective in protecting the photovoltaic chip.

Abstract: A multi-junction group III-V compound semiconductor solar cell and fabrication method thereof forms a 2D photonic crystal structure in the topmost window layer of the stacked solar cell units by etching holes in the window layer. The 2D photonic crystal structure causes omni-directional reflection of the sunlight along any transverse plane of the 2D photonic crystal structure and directs the oblique sunlight to enter the bottom surface of the holes, thereby increasing the amount of incident light. By applying the property that the 2D photonic crystal structure causes a wider range of wavelengths to have higher transmission efficiency at the window layer to the multi-junction group III-V compound semiconductor solar cell, energy conversion efficiency may be effectively increased.

Abstract: A method for fabricating a III-V compound semiconductor solar cell includes forming a window layer made of III-V compound material over a top surface of an solar cell structure; forming a periodic array of hole textures of the window layer by using a lithography and etching process; and depositing an anti-reflection coating film to cover the window layer. A III-V compound solar cell structure is also provided to enhance the conversion efficiency of photovoltaic.

Abstract: A photovoltaic structure is provided with an added layer inserted between an emitter layer and a window layer. The added layer includes all elements which are same or different both in the emitter layer and the window layer. The addition of the added layer enhances converted current and voltage that improves the conversion efficiency when the structure is applied to a solar cell.

Abstract: A monolithic photo-chip with a solar device and a light-emitting device that can be manufactured by utilizing a method of selective area growth (SAG) is provided, which has the advantages of simple structure, compactness and cost-effectiveness. Moreover, a solar-powered illuminator including the monolithic photo-chip and a rechargeable battery is provided, which has the advantages of small size, compactness, simple integration, easy installation and cost-effectiveness. Accordingly, the solar-powered illuminator is very suitable for versatile application fields, such as the LD application field including a laser pointer, a laser sight, a laser aiming device, a laser level and a laser measuring tool, etc; or the LED application field including a decoration lamp, a courtyard lamp, a garden lamp and a advertisement lamp, a streetlamp, a warning sign and a indication sign for the road application, etc.

Abstract: A cascade solar cell structure includes an amorphous silicon-based solar cell on a non-silicon solar cell to be configured for an anti-reflective surface and absorbing incident light with short wavelength.

Abstract: A solar-powered illuminator, which includes an integrated light receiving and emitting device having a solar chip and a LED chip, a rechargeable battery and an Application-Specific Integrated Circuit (ASIC), is provided. A transparent encapsulant of the integrated light receiving and emitting device focuses the incident sunlight on the solar chip to generate a first voltage. The rechargeable battery is electrically connected to the integrated light receiving and emitting device and is charged by the solar chip in the first voltage. The ASIC is electrically connected to the rechargeable battery and the light receiving and emitting device, and it steps up the first voltage into a second voltage and drives the LED chip to emit light via the discharge of the rechargeable battery in the second voltage. Consequently, the solar-powered illuminator has the advantages of small size, compactness, simple integration, easy installation and cost-effectiveness.

Abstract: The invention relates to an optical module for recognizing the pages of an electronic book. The optical module of the invention comprises: at least one light source, a plurality of pages, at least one light sensor and a page recognizing device. The light source is used for generating emitting light. Each page has a peripheral side for reflecting the emitting light. The light sensor is used for receiving the reflective light from the pages and outputting a corresponding signal, and the light source and the light sensor are mounted on the peripheral cover of the electronic book. The page recognizing device is used for recognizing a current page of the electronic book according to the corresponding signal. According to the invention, the different peripheral sides on the different pages are used to reflect the different reflective light, so that the electronic book can recognize the page which the user currently opens.

Abstract: The invention relates to a solar energy system with spherical lens. The solar energy system comprises: a spherical lens and a solar energy plate. The spherical lens has a first surface and a second surface. The first surface is used for receiving incident light from a light source at any location. The second surface is used for transmitting concentrated light caused by the incident light to a predetermined region. The solar energy plate is mounted on the predetermined region, and is used for receiving the concentrated light and generating electrical energy. According to the invention, the spherical lens can receive the incident light from any location and transmit the concentrated light to the same predetermined region. The solar energy plate on the predetermined region can always receive the concentrated light from the spherical lens. Therefore, the efficiency of the solar energy system of the invention is high.

Abstract: A communication device is provided with a ball turned by hand to reflect a laser beam within a housing. The laser beam proceeding within the housing is in response to motion of the ball and received by a light sensor. The communication device is capable of operation without providing a panel for the ball.

Abstract: The invention relates to an optical output system with auto optical power control for an optical mouse. The optical output system comprises: a light emitting device, a driver and an auto power controller. The light emitting device is used for generating emitting light. The driver is used for driving the light emitting device. The auto power controller is used for outputting a control signal to the driver according to at least one input signals so as to control the power of the light emitting device at a predetermined range. According to the invention, the optical output system can output the stable power of the emitting light at a predetermined value within the predetermined range under various conduction and circumference by a feedback control. Furthermore, the optical mouse using the optical output system can work on various reflective surface.