Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A laser scanning unit for a laser printer includes a frame connected to a casing, an optical system module installed on the frame directly for generating laser beams according to print data, an optical scanning module fixed on the frame for reflecting the laser beams generated by the optical system module, a curved lens for reflecting the laser beams reflected from the optical scanning module, and a reflector module installed on the frame directly for reflecting the laser beams reflected from the curved lens to an organic photo conductor.

Abstract: The present invention discloses a MEMS scanning coordinate detection method and a touch panel thereof, wherein the touch panel comprises a light source module, a MEMS reflector, an image sensor, an image signal processor, and a coordinate calculator. When the laser light from the light source module is reflected by the MEMS reflector, the laser light is transformed into a scanning light beam. When the touch panel is touched by a pen or a finger, the scanning light beam is blocked and two inactive pixels are formed on the image sensor. The electronic signal is transmitted from the image signal processor and calculated by the coordinate calculator to determine the touch point position.

Abstract: An optical mouse with a light indicating function is provided, which includes a light source module, a reflecting mirror, and a button. The light source module is used for emitting an irradiating light. The reflecting mirror disposed on a path of the irradiating light and located at a normal position in use, for reflecting the irradiating light to generate a reflecting light for detecting the displacement of the optical mouse. The button is adopted for being pushed to move the reflecting mirror, so that the reflecting mirror is moved away from the normal position in use, and then the irradiating light travels straightly to serve as an indicating light beam of the light indicator.

Abstract: An alarm system for a vehicle includes a first diffraction raster, a first light source for emitting light to the first diffraction raster so as to form a first diffraction pattern on an object, an image capturing module for capturing the first diffraction pattern, and a control module electrically connected to the image capturing module for determining a relative position of the vehicle corresponding to the object according the first diffraction pattern captured by the image capturing module.

Abstract: An apparatus for determining a material of a printing media, includes a light source for exposing the printing media to light; a photo detector for detecting the transmission light, the transmission light generated by the light source and passing through the printing media, to generate an intensity value; and an analysis unit, electrically connected to the photo detector, for analyzing the intensity value to determine the material of the printing media.

Abstract: An apparatus for determining a printing media material, includes a light source for exposing the printing media to light; an image sensor for sensing reflected light from the printing media to form at least one image corresponding to the printing media; and an image-analyzing unit, electrically connected to the image sensor, for analyzing the image to generate a material parameter and then determining the printing media material according to the material parameter.

Abstract: An alarm system for a vehicle includes a first diffraction raster, a first light source for emitting light to the first diffraction raster so as to form a first diffraction pattern on an object, an image capturing module for capturing the first diffraction pattern, and a control module electrically connected to the image capturing module for determining a relative position of the vehicle corresponding to the object according the first diffraction pattern captured by the image capturing module.

Abstract: A laser scanning unit for a laser printer includes a frame connected to a casing, an optical system module installed on the frame directly for generating laser beams according to print data, an optical scanning module fixed on the frame for reflecting the laser beams generated by the optical system module, a curved lens for reflecting the laser beams reflected from the optical scanning module, and a reflector module installed on the frame directly for reflecting the laser beams reflected from the curved lens to an organic photo conductor.

Abstract: An apparatus for determining a material of a printing media, includes a light source for exposing the printing media to light; a photo detector for detecting the transmission light, the transmission light generated by the light source and passing through the printing media, to generate an intensity value; and an analysis unit, electrically connected to the photo detector, for analyzing the intensity value to determine the material of the printing media.

Abstract: An apparatus for determining a printing media material, includes a light source for exposing the printing media to light; an image sensor for sensing reflected light from the printing media to form at least one image corresponding to the printing media; and an image-analyzing unit, electrically connected to the image sensor, for analyzing the image to generate a material parameter and then determining the printing media material according to the material parameter.

Abstract: An optical mouse with a light indicating function is provided, which includes a light source module, a reflecting mirror, and a button. The light source module is used for emitting an irradiating light. The reflecting mirror disposed on a path of the irradiating light and located at a normal position in use, for reflecting the irradiating light to generate a reflecting light for detecting the displacement of the optical mouse. The button is adopted for being pushed to move the reflecting mirror, so that the reflecting mirror is moved away from the normal position in use, and then the irradiating light travels straightly to serve as an indicating light beam of the light indicator.

Abstract: An optical print head and a method for enhancing light quantity thereof and optical printer are provided. A convergent micro-lens set is disposed between the LED lighting plate and the self-focusing micro-lens array, and is used to converge the emitting light generated by the LED lighting plate into the self-focusing micro-lens array. As such, the optical coupling efficiency of the optical print head is increased by increasing the light quantity of entering into the self-focusing micro-lens array.

Abstract: An apparatus for image correction of a laser printer and its method. The apparatus and method are applied to a laser printer using laser or light-emitting diode (LED) beam-scanning technology for performing a printing procedure thereof. The method disposes a sensing unit inside the laser printer, uses multiple sensors of the sensing unit to receive optical signals of the scanning beam emitted from a light-emitting unit and convert the optical signals into multiple photoelectric signals, uses an image-processing unit to receive and process the photoelectric signals, converts the photoelectric signals into multiple signal stripe lines and shows the signal stripe lines on an image-displaying unit, and determines whether the light-emitting unit has disposition deviation according to the status of the signal stripe lines and adjusts the light-emitting unit's position to remove the disposition deviation.