Abstract: A lens module includes a lens barrel and a number of lenses received in the lens barrel. The lens barrel defines a light incident opening in a side surface thereof for light passing therethrough. The lenses include a reflecting lens. The reflecting lens includes a light incident surface, a light output surface, and a total reflection surface. The light incident surface faces the light incident opening, and the light output surface faces an end of the lens barrel. The total reflection surface is configured for reflecting incident light from the light incident surface to the light output surface.

Abstract: A lens includes a light incident surface, a light emitting surface opposite to the light incident surface, and a side surface connected between the light incident surface and the light emitting surface. The side surface includes arc-shaped convex surfaces. Each arc-shaped convex surface protrudes in a direction perpendicular to an optical axis of the lens.

Abstract: A portable electronic device includes a housing defining a through hole, a barrel positioned in the housing, a lens fixed at an end of the barrel and a light detection unit fixed at the other end of the barrel away from the lens. The lens includes an imaging portion facing the light detection unit and an incidence portion facing the through hole. The incidence portion forms a reflecting surface angled relative to an optical axis of the imaging portion, such that light entering from the through hole through the incidence portion is then reflected by the reflecting surface and refracted by the imaging portion, and is then received by the light detection unit.

Abstract: A liquid crystal display includes a main body, a screen positioned on the main body, a backlight module positioned in the main body and supplying light for the screen, a controller for controlling the brightness of the backlight module and an ambient light sensor positioned on the main body. The ambient light sensor includes a barrel, an optical sheet positioned at an end of the barrel and a photosensitive unit positioned at the other end of the barrel. The photosensitive unit creates a signal according to the ambient light received via the optical sheet, and sends the signal to the controller. The controller adjusts the brightness of the backlight module. The optical sheet includes a first surface, a second surface opposite the first surface and a plurality of V-shaped micro structures formed on the first surface.

Abstract: A lens includes a light incident surface, a light emitting surface opposite to the light incident surface, and a side surface connected between the light incident surface and the light emitting surface. The side surface includes arc-shaped convex surfaces. Each arc-shaped convex surface protrudes in a direction perpendicular to an optical axis of the lens.

Abstract: An exemplary camera module includes a lens barrel defining an aperture for light entering the lens barrel and a lens received in the lens barrel. The lens includes a central optical portion aligned with the aperture of the lens barrel and a fixing portion around a periphery of the optical portion for fixing the lens in the lens barrel. An outside surface of the fixing portion of the lens is beveled relative to an optical axis of the camera module.

Abstract: A lens module includes a lens barrel and a number of lenses received in the lens barrel. The lens barrel defines a light incident opening in a side surface thereof for light passing therethrough. The lenses include a reflecting lens. The reflecting lens includes a light incident surface, a light output surface, and a total reflection surface. The light incident surface faces the light incident opening, and the light output surface faces an end of the lens barrel. The total reflection surface is configured for reflecting incident light from the light incident surface to the light output surface.

Abstract: An exemplary camera module includes a lens barrel and a lens received in the lens barrel. The lens includes an optical portion located at a center thereof and a fixing portion around the optical portion. Protrusions are formed at an outside peripheral surface of the fixing portion, and surfaces of the protrusions are slanted relative to an optical axis of the lens barrel.

Abstract: A lens module includes a barrel and at least one lens. The barrel defines a through hole bounded by an inner circumference surface thereof. The inner circumference surface includes at least one first circumference latching surface. The at least one lens includes at least one second circumference latching surface corresponding to the at least one first circumference latching surface. One of the first circumference latching surface and the corresponding second circumference latching surface is a ring-shaped concave surface, and the other is a ring-shaped convex surface latchable with the ring-shaped concave surface.

Abstract: An exemplary motion sensing controller includes an infrared light detection module, a spherical light output member, and a processing unit. The infrared light detection module is configured for detecting infrared light and includes a lens module. The spherical light output member is configured for outputting infrared light. The infrared light detection module has a sensing surface configured for capturing images of the spherical light output member. The processing unit is electrically connected with the infrared light detection module. The processing unit is configured for receiving signals of the images of the spherical light output member, computing dimensions and positions of the images of the spherical light output member on the sensing surface, and computing positions of the spherical light output member with respect to the lens module based on the dimensions and the positions of the images of the spherical light output member on the sensing surface.

Abstract: A camera module for an electronic device includes a holder, a supporting member, an image sensor, and a lens module. The holder is fixed to the electronic device and includes an inner surface. The holder defines a truncated spherical receiving space surrounded by the inner surface and an opening communicating with the receiving space. The supporting member includes a connecting portion and supporting portion. The connecting portion is received in the receiving space and rotatable relative to the holder. The supporting portion extends out of the receiving space from the opening and is rotatable together with the connecting portion. The image sensor is fixed on the supporting portion and is electrically connected to the electronic device. The lens module is fixed on the supporting portion and is aligned with the image sensor.

Abstract: An image capturing device includes a lens module defining an optical axis, a holder defining an opening and a space communicating with the opening, an image processing unit received in the space, and an image sensor received in the space and fixed on the image processing unit. The holder is configured for receiving the lens module. The image processing unit is electrically connected to the image processing unit and inclined relative to the optical axis. The image sensor is configured for capturing images of objects. The optical axis passes through the center of the sensing surface of image sensor.

Abstract: An exemplary handheld controller includes a shell, a gas pressure detecting member and a processing unit. The gas pressure detecting member is received in the shell and exposed to the ambient environment. The gas pressure detecting member is configured for detecting a pressure exerted by ambient air at the outside of the shell, and generating a signal relating to the pressure. The processing unit is electrically connected with the pressure detecting member. The processing unit is configured for receiving the signal, identifying a movement of the shell according to the signal, and generating an instruction based on the identified movement.

Abstract: An optical touch screen device includes a display panel, an infrared light source module, a number of elongated reflective plates, and an infrared image capture module. The display panel includes a display screen. The infrared light source module has a strip-shaped light output portion generally parallel with the display screen. The strip-shaped light output portion is arranged along an edge of the display screen and configured for outputting infrared light to illuminate the display screen. The elongated reflective plates are arranged along the other edges of the display screen. The reflective plates is configured for reflecting the light from the light output portion to the display screen, thereby the light from the light output portion and the reflected light cooperatively forming an infrared light field. The infrared image capture module is configured for capturing an image of the entire display screen.

Abstract: An optical touch system includes a display screen having a contact surface, an infrared light source emitting infrared light to cover the contact surface, a linear infrared sensor having a sensing surface with a lengthwise direction thereof parallel to the contact surface, a processor, and a controller. The linear infrared sensor captures an image of the contact surface with an infrared portion representing a touch area of a contact object, the image having an aspect ratio greater than that of the contact surface. The processor determines the touch location of the contact object based on the aspect ratios of the image and the contact surface, the location of the infrared portion on the image, the area of the infrared portion and the area of the touch portion of the contact object on the contact surface. The controller executes an instruction according to the determined location of the contact object.

Abstract: An exemplary touch panel display includes a display panel, light source modules, and a camera. The display panel includes a touch surface. The light source modules are disposed on a periphery of the display panel. Light from the light source modules cooperatively forms a substantially planar illumination field. The camera is provided at a periphery of the display panel. When an object contacts or is adjacent to the touch surface, some of the light of the illumination field is reflected by the object to the camera.

Abstract: An optical film has at least one surface forming a dense and alternate arrangement of light condensation structures. The light condensation structures have a pyramid configuration having a major axis and a minor axis. Each light condensation structure forms four differently oriented light emission faces, so that the light condensation structure simultaneously condenses lights that are in vertical direction and horizontal direction with respect to the optical film and then emits the condensed lights. In this way, when the optical film is applied to a backlight module, the number of the optical film required by the backlight module to realize desired condensation of light can be reduced to thereby lower the manufacturing costs of the backlight module.

Abstract: A gap controlling structure for image forming apparatus for maintaining a development gap between a photoconductor of an image-receiving module and a developer roller of a developer unit includes a image-receiving module frame, and at least a photoconductor support bar. The photoconductor support bars are combined on the image-receiving module unit frame. Each of the photoconductor support bars has a raised curved surface. The developer unit has at least a toner cartridge disposed corresponding to the curved surfaces. The distance between the toner cartridges is maintained by the photoconductor support bars supporting the photoconductor. The developer unit further includes a roller gap controlling apparatus to improve a gap accuracy of positioning the developer roller.

Abstract: An apparatus and method for shifting the image-forming region of a printing device is disclosed. The apparatus includes a photoconductor, an encoder, several rollers, and a controlled device. The present invention is used to shift the image-forming region in the photoconductor by the controlled device. The damage of the image-forming region in the photoconductor can be reduced. The lifetime of the photoconductor can be extended. In addition, the controlled device uses firmware to shift the image-forming region. The shifting method can be a sequential mode or random mode.

Abstract: A lithium battery includes a casing having at least one reacting trough in which at least one electrode device is installed and the at least one electrode device includes a first electrode having a lithium compound that contains ionizable lithium ions and a first electric conductor. A second electrode includes at least including a layer material containing carbon or metal alloys, and a second electric conductor. A third electrode is disposed between the first electrode and the second electrode. The third electrode has an electrically conductive carrier for electroplating lithium ions and the carrier has a penetrating hole for passing lithium ions through the penetrating hole. At least one isolating membrane separates the first, second and third electrodes. The isolating membrane including a small hole for passing ions through the small holes. A control device controls the switch of a charging or a discharging status of the first, second and third electrodes.