Abstract: The present invention discloses active blue light leakage preventing LED structures. Each of the structure includes a circuit board, at least one blue light LED die, a photo detector/thermal sensor and a wavelength transformation layer, wherein the electric circuit on the circuit board receives detection signal from the photo detector/thermal sensor and turns off the said blue light LED die accordingly. With the implementation of the present invention, the active blue light leakage preventing LED structure turns off the blue light LED die when it reaches its usage life span limit thus avoiding damage to human from the massive release of blue light.

Abstract: A 3D space rendering system with multi-camera image depth includes a headset and a 3D software. The headset includes a body with a first support and a second support. The 3D software is in electrical signal communication with a first image capturing device and a second image capturing device. The system makes it possible to establish 3D image models at low cost, thereby allowing more people to create such models faster.

Abstract: The present invention discloses a laser stimulated white light lighting system, it includes a hemispherical reflector, a light-permeable board, a wavelength conversion layer, a reflective layer and plural heat-radiating structures, wherein the laser light emitted by a laser light source passes through a first light entrance hole of the hemispherical reflector and subsequently through the wavelength conversion layer to produce white light. With the implementation of the present invention, complex production process or equipment is not required thus reduce the system cost, the lighting system is capable of accurately outputting white light and promoting photon recycling effect to raise illumination efficiency. With the addition of a second light entrance hole, wavelength-division or angular division multiplexing can be carried out to raise the intensity of the output white light without increasing the etendue of the source light, thereby widening the range of application of the lighting system.

Abstract: The present invention discloses an optic distribution meter that includes a testing system and an imaging system. The testing system includes an arc-shaped brace which has an extended object holder; and a rail base which has a first rail. The imaging system, set at a side of the testing system, includes a screen and an image catcher. With the implementation of the present invention, the rail base is able to rotate or move an object to a test angle with very little light blocking of measurements. Besides, with the first rail supporting the object, the incident angle of the light of a light source to the object remains unchanged when the measuring angle of the imaging system is changed. Thus ensure the accuracy of measurements of the optic distribution meter.

Abstract: A detecting apparatus for detecting an object includes at least a screen, at least a detecting unit and at least a holding unit. The screen is partial light-permeable and has a first surface and an opposite second surface. The object is disposed adjacent to the first surface of the screen. The detecting unit is disposed corresponding to the object and located adjacent to the second surface of the screen. The holding unit holds the relative distances between the screen, the object and the detecting unit. The detecting unit captures the image of the second surface of the screen so as to calculate the optical field distribution of the object. The detecting apparatus can measure the optical field distribution of an object quickly and has the advantages of low cost and high accuracy.

Abstract: A manufacturing method of an optical element applied to a miniature microscope includes the steps of: emitting a signal light and a reference light to an optical material; and forming a plurality of gratings on the optical material by interfering the signal light and the reference light. A miniature microscope is also disclosed.

Abstract: A holographic storage layer includes a reflective structure and photosensitive units. The reflective structure is a grid-shaped structure and includes cavities. The photosensitive units are disposed in the cavities, in which each of the photosensitive units is surrounded by the reflective structure. First openings and second openings are defined by the reflective structure, and the photosensitive units are exposed by the first openings and the second openings respectively.

Abstract: A fingerprint detection apparatus, a mobile device using the same and a manufacturing method thereof are provided. The fingerprint detection apparatus comprises an image sensing integrated circuit and a spatial filter disposed on the image sensing integrated circuit. The spatial filter has adjacent light tunnels for restricting an incident angle of light to the image sensing integrated circuit to prevent scattered light from entering the image sensing integrated circuit.

Abstract: A holographic storage layer includes a reflective structure and photosensitive units. The reflective structure is a grid-shaped structure and includes cavities. The photosensitive units are disposed in the cavities, in which each of the photosensitive units is surrounded by the reflective structure. First openings and second openings are defined by the reflective structure, and the photosensitive units are exposed by the first openings and the second openings respectively.

Abstract: A blue light leakage-suppressing LED structure for emitting white light includes at least one LED chip, an encapsulation element, a light output lens, and an optical fuse coating formed of a thermosensitive material; or includes at least one LED chip and an encapsulation element formed of a mixture of an encapsulation material and a thermosensitive material; or includes at least one blue LED chip, a fluorescent powder layer, an isolation region, an optical fuse layer, and a light output lens. Thanks to the hue changing property of the thermosensitive material, the LED structure can reduce the intensity of its short-wavelength light component and its overall brightness significantly before reaching the L70 threshold, after passing which the LED structure will emit excessive blue light. Thus, the user is protected from overexposure to blue light and will be reminded to replace the LED structure when the LED structure is about to malfunction.

Abstract: The present invention discloses a laser stimulated white light lighting system, it includes a hemispherical reflector, a light-permeable board, a wavelength conversion layer, a reflective layer and plural heat-radiating structures, wherein the laser light emitted by a laser light source passes through a first light entrance hole of the hemispherical reflector and subsequently through the wavelength conversion layer to produce white light. With the implementation of the present invention, complex production process or equipment is not required thus reduce the system cost, the lighting system is capable of accurately outputting white light and promoting photon recycling effect to raise illumination efficiency. With the addition of a second light entrance hole, wavelength-division or angular division multiplexing can be carried out to raise the intensity of the output white light without increasing the etendue of the source light, thereby widening the range of application of the lighting system.

Abstract: The present invention discloses thin type fingerprint recognition devices with optical filter structure, it includes a transparent layer, an optical film and an optical sensor, wherein the optical film is formed on a first surface in an embodiment, and is formed on a second surface in another embodiment. With the implementation of the present invention, complex production process or equipments are not required for producing fingerprint recognition devices and reduces costs of production; the size of the fingerprint recognition device is reduced, a variety of thickness choices for transparent layer and more applications are thus possible; and the directivity and the contrast of fingerprint signal is enhanced thus enables making clearer features and characteristics of the fingerprint signal and thus the recognition accuracy of fingerprints.

Abstract: The present invention discloses active blue light leakage preventing LED structures. Each of the structure includes a circuit board, at least one blue light LED die, a photo detector and a wavelength transformation layer, wherein the electric circuit on the circuit board receives detection signal from the photo detector and turns off the said blue light LED die accordingly. With the implementation of the present invention, the active blue light leakage preventing LED structure turns off the blue light LED die when it reaches its usage life span limit thus avoiding damage to human from the massive release of blue light.

Abstract: The present invention discloses a high resolution thin device for fingerprint recognition, it includes a transparent plate, an imaging component, an optical sensor and at least one light source; or a high resolution thin device for fingerprint recognition that includes plural transparent plates, plural imaging components, plural optical sensors and at least one light source. With the implementation of the present invention, the fingerprint recognition device provides the following advantageous effects: structural simplicity to improve ease of manufacture and low manufacturing costs; reduction of space occupation enabling further applications; suitable for applications that fills colloid between cover glass and optical sensor; and improving feature classification thus reduces recognition error.

Abstract: The present invention discloses a microscopy imaging structure with phase conjugated mirror and the method thereof. The afore-mentioned imaging structure produces a reverse focusing conjugated probe beam together with an original probe beam. These two probe beams meet at the focal point in the object body to be probed, and an interference pattern is produced. The interval between any two consecutive wave fronts in the interference pattern is then half of the wavelength of the original probe beam, and hence the vertical resolution of the image is improved. The present invention also applies a light modulator module on the probe beam to easily adjust the depth of the focal point of the probe beam and the phase conjugated reverse focusing probe beam in the object body. With the adoption of this invention, the size or position limitation of the target object is eliminated and the imaging resolution is also improved.

Abstract: The present invention discloses sandwich type fingerprint recognition devices, one embodiment of the sandwich type fingerprint recognition device includes a first transparent layer, a spatial filter layer with multiple through holes, a second transparent layer and an optical sensor. Another embodiment of the sandwich type fingerprint recognition device includes a first transparent layer, a spatial filter layer with multiple through holes and an optical sensor. With the implementation of the present invention, complex production process or equipment are not required for producing fingerprint recognition device that reduce costs; the size of the fingerprint recognition device is reduced; a variety of thickness choices for the first transparent layer or second transparent layer and a variety of colors can be used and more applications are thus possible; and the contrast of fingerprint signal is enhanced to enable clarifying fingerprint features and characteristics and thus recognition accuracy of fingerprints.

Abstract: The present invention discloses a reflection type fingerprint recognition device, including a transparent layer, an optical sensor and at least two light sources, wherein each of the light sources being switched on in turn or emitting light of different frequency spectra or of different intensity from any other light source. With the implementation of the present invention, the following advantageous effects can be provided: structural simplicity to improve ease of manufacture and low manufacturing costs; reduction of space occupation enabling further applications; and maintaining same amount of information under same size of optical sensor to improve feature classification and reduce recognition error.

Abstract: A high-contrast miniature headlamp includes at least one light-emitting element, a first reflective surface, and a second reflective surface. The high-contrast miniature headlamp forms a virtual equivalent light source of the light-emitting element via the first reflective surface to increase the equivalent distance between the light source and the second reflective surface, thereby enhancing the contrast of the cutoff line of the beam pattern produced by the headlamp. The headlamp is so configured that, under the condition of maintaining its miniature design and reducing cost without compromising optical efficiency, a beam pattern with a high-contrast cutoff line (i.e., a high-contrast beam pattern) can be generated to significantly improve the safety provided by automobile lighting.

Abstract: A holographic light-emitting module includes a light source module and a light shape control module. The light source module is configured to provide a signal light beam and a reference light beam, in which polarizations of the signal light beam and the reference light beam are orthogonal. The light shape control module is configured to receive the signal light beam and the reference light beam propagated from the light source module, in which the signal light beam and the reference light beam are modulated and emitted by the light shape control module The reference light beam is surrounded by the signal light beam and located at a center of the signal light beam, and the signal light beam and the reference light beam are partially overlapped.

Abstract: A digital holographic microscope is provided. The digital holographic microscope includes a light source, a grating, an image sensing device, and an optical module. The light source is configured for providing a light beam. The grating is disposed between the light source and a sample. The grating is configured for splitting the light beam into a reference light beam and an object light beam. The image sensing device is configured for collecting the reference light beam, and collecting the object light beam reflected from the sample. The optical module is disposed between the light source and the sample, and is configured for guiding the reference light beam to the image sensing device, and guiding the object light beam to the sample.