Abstract: A lens module includes a case, one and more lens units positioned in the case and having at least one lens, a carrying member, a piezoelectric driving unit, and at least a fixing member. The carrying member is connected to the lens unit such that the lens unit is movable forward and backward. The piezoelectric driving unit is mounted in the case for transferring a driving force to the carrying member so as to carry the lens unit to move. By using this configuration, the front and rear lens units may conduct the auto focus function and the zoom function respectively, thereby reducing a stroke of the lens, and reducing the size of the lens driving unit. Accordingly, the lens module may be manufactured in a small size so that it may be inserted into a cellular phone.

Abstract: A street lamp includes a lampshade, a light-emitting diode array, a lens array, and a filter film. The lampshade includes a bottom wall and a sidewall extending around the bottom wall, the lampshade defines a receiving space with an opening opposite to the bottom wall. The light-emitting diode array is received in the receiving space and has a number of light-emitting diodes which light emitting direction faces to the opening of the lampshade. The lens array has a number of lenses corresponding to the light-emitting diodes, the lenses is capable of converging light emitting from the light-emitting diodes. The filter film is disposed on the optical path of the plurality of light-emitting diodes for filtering light of predetermined wavelength ranges.

Abstract: A camera module includes a lens, a lens barrel, a lens holder, a circuit board, an image sensor, and an elastic member. The lens barrel receives the lens therein and includes a flange protruding over the lens barrel. The lens holder is affixed to the circuit board to receive the image sensor therein. The elastic member is disposed between the lens barrel and the lens holder. A rim is formed on the lens holder. The elastic member has one end contacting the rim of the lens holder and the opposite end contacting the flange. The elastic member biases the lens barrel against the image sensor.

Abstract: A monitoring system for a vehicle includes an image capture unit, a reflective film, and a projection unit. The vehicle includes a windshield. The image capture unit is configured for acquiring visual information of the vehicle. The reflective film is formed on a predetermined area of the windshield. The projection unit is configured for projecting the images onto the predetermined area.

Abstract: An image capturing device includes a main body and a flash module disposed on a surface of the main body. The flash module includes a lamp tube, a reflector, and a rotating shaft. The reflector is configured for reflecting the light emitted from the lamp tube. The rotating shaft is assembled on the main body and rotatable relative to the main body. The rotating shaft is secured on a surface of the reflector facing away from, and parallel to the lamp tube.

Abstract: A lens module includes a case, one and more lens units positioned in the case and having at least one lens, a carrying member, a piezoelectric driving unit, and at least a fixing member. The carrying member is connected to the lens unit such that the lens unit is movable forward and backward. The piezoelectric driving unit is mounted in the case for transferring a driving force to the carrying member so as to carry the lens unit to move. By using this configuration, the front and rear lens units may conduct the auto focus function and the zoom function respectively, thereby reducing a stroke of the lens, and reducing the size of the lens driving unit. Accordingly, the lens module may be manufactured in a small size so that it may be inserted into a cellular phone.

Abstract: A street lamp includes a lampshade, a light-emitting diode array, a lens array, and a filter film. The lampshade includes a bottom wall and a sidewall extending around the bottom wall, the lampshade defines a receiving space with an opening opposite to the bottom wall. The light-emitting diode array is received in the receiving space and has a number of light-emitting diodes which light emitting direction faces to the opening of the lampshade. The lens array has a number of lenses corresponding to the light-emitting diodes, the lenses is capable of converging light emitting from the light-emitting diodes. The filter film is disposed on the optical path of the plurality of light-emitting diodes for filtering light of predetermined wavelength ranges.

Abstract: A camera module includes a lens, a lens barrel, a lens holder, a circuit board, an image sensor, and an elastic member. The lens barrel receives the lens therein and includes a flange protruding over the lens barrel. The lens holder is affixed to the circuit board to receive the image sensor therein. The elastic member is disposed between the lens barrel and the lens holder. A rim is formed on the lens holder. The elastic member has one end contacting the rim of the lens holder and the opposite end contacting the flange. The elastic member biases the lens barrel against the image sensor.

Abstract: An apparatus for testing reflectivity of a lens includes an integrating sphere, a light source, a moveable carrier, a detector, and a processor. The integrating sphere has a sampling port for permitting light transfer with a lens to be tested and an exit port configured for transmitting light beams reflected by the lens out from the integrating sphere. The light source generates light beams with a wavelength in a certain range and projects the light beams to the lens. The moveable carrier allows a relative movement between the lens and the integrating sphere. The detector includes a light sensor configured for detecting the light intensity transmitted out from the exit port and transforming it into a reflection comparison signal. The processor is configured for comparing a reference signal of light intensity projected to the lens with the reflection comparison signal to obtain reflectivity of the lens.