Abstract: An imaging device includes an image sensing device, a lens array, and a light-channel plate from the image side to the object side of the imaging device. The image sensing device includes a number of image sensors continuously arranged. The lens array includes a number of lenses. The light-channel plate defines a number of light channels. Each lens is received in a corresponding light channel and aligned with a corresponding image sensor. The imaging device also includes a storing device, a distance sensor and an image processor. The storing device stores a predetermined object distance. The distance sensor is configured for sensing a current object distance and controlling the imaging sensors to sense images if determining the current object distance is larger than the predetermined object distance. The image processor is connected with the image sensors and used for combing the images sensed by the image sensors.

Abstract: An optical fiber connector includes a main body and a cover mechanically coupled to the main body. The main body includes a coupling portion and a light guide portion extending from the coupling portion. The light guide portion includes a light incident surface and a light output surface arranged at opposite sides thereof. The coupling portion includes a first groove formed at a top surface thereof, facing the light incident surface and terminating at opposite sides of the coupling portion, and a plurality of recesses. The cover includes a second groove formed at bottom surface thereof, terminating at opposite sides of the cover, and a plurality of protrusions. The first groove and the second groove cooperatively form a receiving channel for receiving an optical fiber therein and allowing the optical fiber to be optically connected to the light guide portion.

Abstract: A method for manufacturing a diffraction grating comprises below steps. Firstly providing a substrate which having a first surface and a second surface opposite to the first surface. Then providing a first predetermined function associated with arrangement of the grooves of the first grating and a second predetermined function associated with arrangement of the grooves of the second grating. Thirdly transforming the first function into a first Fourier series and transforming the second function into a second Fourier series. Fourthly forming the first grating on the first surface of the substrate using a fast tool sever system according to the first Fourier series. Lastly forming the second grating on the second surface using the fast tool sever system according to the second Fourier series.

Abstract: An exemplary portable electronic device includes a main body, camera modules, a storage unit for storing images, and an image processing unit. The camera modules are accommodated in the main body and exposed the ambient environment. The camera modules have different focal lengths from each other, and are configured for simultaneously picking up images of an object. The image processing unit is electrically connected with the camera modules. The image processing unit is configured for comparing the modulation transfer function (MTF) values of the images, and transmitting data of the image having the greatest MTF value to the storage unit.

Abstract: A camera module includes a plurality of lenses with different focal lengths, a supporting plate, an image sensor, and a processor. The supporting plate defines a plurality of through holes receiving the corresponding lenses. The image sensor includes a sensing area. The sensing area is configured for receiving light through the lenses and the through holes and converting the light into electrical signals. The processor is electrically connected to the image sensor. The processor is configured for processing the electrical signals to form sub-images of a same view of same objects with different depths of field and then combining the sub-images into a final image.

Abstract: A camera module includes a lens assembly and a baseboard assembly mounted on the lens assembly. The lens assembly includes a lens, a barrel receiving the lens, and a support member receiving the barrel. The baseboard assembly includes a circuit board and an image sensor on the circuit board. The baseboard defines a friction surface at a side surface thereof.

Abstract: A fingerprint identification apparatus includes at least three light sources, a light guide, a camera module and a processor. The light guide has a top and a bottom surfaces and at least three side surfaces. The top surface serves as a fingerprint contacting surface, each of the side surfaces has a first curved portion, the bottom surface has a second curved portion. Each of the first curved portions is opposite to the respective light sources and configured for converging the light beams emitted from thereof onto the top surface for illuminating a fingerprint thereon. The camera module aligns and cooperates with the second curved portion for capturing and converting an optical image of the fingerprint into electronic image associated with the fingerprint. The processor is configured for receiving and comparing the electronic image associated with the fingerprint with pre-stored electronic images of fingerprints to verify the fingerprint.

Abstract: A diffraction grating structure comprises a substrate having a first surface and a second surface opposite to the first surface. A first grating is defined on the first surface and a second grating is defined on the second surface. The first grating includes a plurality of first grooves and has a first grating period. The second grating includes a plurality of second grooves and has a second grating period. The first groove and the second groove are formed by a fast tool servo system.

Abstract: A rotatable cell phone includes a display unit, a main unit, a connecting unit, and a signal transmitting unit. The display unit includes a top housing defining a top recess. The main unit includes a bottom housing defining a bottom recess. The connecting unit includes a top assembly module detachably mounted in the top recess, a bottom assembly module detachably mounted in the bottom recess, and a pivot shaft rotatably connecting the top assembly module to the bottom assembly module. The pivot shaft defines an axial hole. The signal transmitting unit is received in the axial hole of the pivot shaft, and is configured for transmitting signals from the main unit to the display unit.

Abstract: A camera module includes an image sensing module and a lens holder. The image sensing module includes a base defining a top surface and a recess, and a transparent plate mounted on the top surface, the transparent plate covering the recess and having a first surface facing away from the recess. First electrically conductive poles in the transparent plate, second electrically conductive poles, an image sensor in the recess, and passive components attached on the first surface and surrounding the sensor. The sensor includes a light sensitive region and a light non-sensitive region. The second electrically conductive poles are embedded in the light non-sensitive region, and electrically connecting the sensor to the first electrically conductive poles. The passive components are electrically connected to the sensor via the first electrically conductive poles. The lens holder is attached on the top surface of the base and surrounding the transparent plate.

Abstract: A light guide loop includes a number of optical coupling structures and a number of luminaries. Each of the optical coupling structures includes a light incident surface and a reflecting surface. The luminaries are respectively facing the light incident surfaces of the optical coupling for emitting light to the optical coupling structures.

Abstract: A camera module includes an image sensing module and a lens holder. The image sensing module includes a base defining a top surface and a recess, and a transparent plate mounted on the top surface, the transparent plate covering the recess and having a first surface facing away from the recess. First electrically conductive poles in the transparent plate, second electrically conductive poles, an image sensor in the recess, and passive components attached on the first surface and surrounding the sensor. The sensor includes a light sensitive region and a light non-sensitive region. The second electrically conductive poles are embedded in the light non-sensitive region, and electrically connecting the sensor to the first electrically conductive poles. The passive components are electrically connected to the sensor via the first electrically conductive poles. The lens holder is attached on the top surface of the base and surrounding the transparent plate.

Abstract: An exemplary image sensing module includes a base, a transparent plate, many first electrically conductive poles, an image sensor, and many passive components. The base includes a top surface and a recess defined in the top surface. The transparent plate is mounted on the top surface of the base, and covers the recess. The transparent plate includes a first surface facing away from the recess. The first electrically conductive poles extend through the transparent plate. The image sensor is received in the recess of the base. The passive components are attached on the first surface of the transparent plate, and surround the image sensor. The passive elements are connected electrically with the image sensor via the first electrically conductive poles.

Abstract: A display device includes a housing, a liquid crystal panel member, numerous camera modules, a light emitting device and a processing unit. The housing defines a slot configured for allowing an display medium to enter the display device. The liquid crystal panel member is received in the housing. The camera modules are positioned in the reflective housing and each is configured for capturing a sub-images of a corresponding portion of the display medium. The light emitting device is configured for emitting light to the display medium. The processing unit is configured for obtaining an image of the display medium by synthesizing the sub-images of the corresponding portions of the display medium.

Abstract: A remote sensing system includes a first light source, a second light source, two image capturing devices and a processing unit. The first light source is configured for emitting infrared light of a first central wavelength. The second light source is configured for emitting infrared light of a second central wavelength. The two image capturing devices is configured for capturing images of the first and second light sources. The image capturing devices each includes an infrared sensitive image sensor and an infrared pass filter having two passbands for respectively allowing the infrared light of the first and second central wavelengths to pass therethrough. The processing unit is configured for analyzing the images captured by the image capturing devices thereby determining positions of the light sources relative to the image capturing devices.

Abstract: An exemplary keyboard assembly includes a light source for emitting light, a light guide plate and a plurality of keys mounted on the light guide plate. The light guide plate includes a light incident surface facing the light source and a light emitting surface. Each key includes a cap, a light guide portion coupled to the cap, and a spring member configured for biasing the light guide portion in a direction away from the light emitting surface of the light guide plate. Each key is movable relative to the light guide plate, in response to manual manipulation thereto, between a depressed position where the light guide portion is attached to and optically coupled to the light emitting surface of the light guide plate thereby illuminating the cap, and a rest position where the light guide portion is spaced apart from the light emitting surface of the light guide plate.

Abstract: A three-dimensional camera module includes a base plate, a first rotating shaft, a first supporting member, a second supporting member, a first lens unit, a second lens unit mounted, a first piezoelectric actuator, a second piezoelectric actuator and a image processor. The first rotating shaft and the second rotating shaft is positioned on the base plate. The first supporting member and the second supporting member are rotatably fixed to the first rotating shaft and second rotating shaft, respectively. The first lens unit and the second lens unit are mounted on the first supporting member and the second supporting member, respectively. The first piezoelectric actuator abuts the first supporting member to drive the first supporting member to pivot around the first rotating shaft. The second piezoelectric actuator abuts the second supporting member. Both of the first lens unit and the second lens unit are electrically connected to the image processor.

Abstract: A light guide plate mold is configured for manufacturing a light guide plate having a number of microstructures. The light guide plate mold includes a substrate and a number of heating members. The substrate defines a number of grooves therein. The heating members are respectively received in the grooves. Each heating member has a height less than a depth of the corresponding groove. The grooves and the heating members cooperatively define a number of receiving spaces for forming the microstructures of the light guide plate.

Abstract: A light guide plate mold is configured for manufacturing a light guide plate having a number of microstructures. The light guide plate mold includes a substrate and a number of heating members. The substrate defines a number of grooves therein. The heating members are respectively received in the grooves. Each heating member has a height less than a depth of the corresponding groove. The grooves and the heating members cooperatively define a number of receiving spaces for forming the microstructures of the light guide plate.

Abstract: An electronic device includes a main body, an illuminator received within the main body, a transparent rear cover attaches to the main body, a color tape, a key and a reflective film. The main body and the rear cover cooperatively define a compartment for receiving a battery therein. The color tape attaches to the inner surface of the rear cover. The illuminator is configured for illuminating the color tape on the inner surface of the rear cover. The key is arranged on the main body and connected to the illuminator for switching on/off the illuminator. The reflective film is adhered to the rear cover. The rear cover includes a covered portion with the reflective film attached thereon and an exposed portion free of the reflective film attached thereon.