Abstract: A spacer includes an annular spacing portion defining a first surface and an opposite second surface, a flange defining a through opening; and a connecting portion connecting the flange to the spacing portion. The connecting portion defines a first inclined stopping surface and a second inclined stopping surface on opposite sides thereof. The first and second inclined stopping surfaces respectively extend from the first and second surfaces of the spacing portion to the flange.

Abstract: A unitary composite lens includes a first lens portion, a second lens portion spaced from the first lens portion, and a connecting portion connecting the first lens portion and the second lens portion. The second lens portion is optically aligned with the first lens portion. The first lens portion, the second lens portion and the connecting portion are comprised of a same material.

Abstract: An exemplary mold unit includes a first mold module and a second mold module adjacent to the first mold module. Each of the first mold module and the second mold module includes a fixed mold and a movable mold capable of moving toward and away from the fixed mold. The fixed and movable molds are configured to form a plurality of shaping chambers therebetween when the fixed and movable molds are in a closed position. The fixed mold defines a main runner having an inner end capable of communicating with the shaping chambers for supplying molten material into the shaping chambers.

Abstract: An exemplary lens includes an optical axis, an optically active part, and an optically inactive part surrounding the optically active part. The optically inactive part includes a base and a peripheral sidewall extending in a direction parallel to the optical axis. The base is connected with the active part. The side wall is a hollow cylinder. The sidewall has an internal thread formed on an internal surface thereof.

Abstract: A lens module includes a seat supporting a first lens barrel and the second lens barrel thereon. The seat includes a body equipped with an electromagnet and two columns extending from the body. The first lens barrel includes a first sleeve equipped a lens therein. Two first arms extend from the sleeve and engage with the columns of the seat, respectively. The second lens barrel is equipped with a magnetic member corresponding to the electromagnet of the seat. The second lens barrel includes a second sleeve equipped a lens therein. Two second arms extend from the second sleeve and movably engage with columns of the seat. The electromagnet is configured for applying a magnetic force to the magnetic member to drive the second lens barrel to move between the seat and the first lens barrel.

Abstract: A street lamp includes a lampshade, a light source, a light pervious cover and a camera module. The light source is configured for generating light. The light pervious cover is mounted on the lampshade. A receiving space is defined between the light pervious cover and the lampshade. The light source is received in the receiving space. The lampshade is configured for shielding the light source and directing the light emitted from the light source to illuminate an object. The camera module is received in the receiving space. The camera module includes a lens facing the light pervious cover. The camera module is configured for capturing an image of the object illuminated by the light.

Abstract: A threaded core includes a first half core and a second half core. The first half core includes a core body and a movable core portion. The core body has a body surface and an end face adjacent to the body surface. An outside threaded portion is defined in the end face. The core body defines a recess on the body surface. The recess communicates with the groove. The movable core portion is movably mounted in the recess. The movable core portion has a front end face. An inside threaded portion is defined in the front end face and configured for forming part of the screw thread cooperatively with the first outside threaded portion. The second half core has an identical structure with the first half core. The inside and outside threaded portions of the first and second cores cooperatively define a screw hole.

Abstract: An exemplary lens includes an active part configured for refracting light transmitting therethrough, an inactive part surrounding the active part, and a collar formed on a surface of the inactive part.

Abstract: An exemplary portable electronic device includes a main body, a first camera module disposed in the main body, a second camera module disposed in the main body adjacent to the first camera module, and a light diverging lens rotatably mounted on the main body. The light diverging lens has a first surface and an opposite second surface. The light diverging lens is rotatable between a first position and a second position. When the light diverging lens is in the first position, the light diverging lens is optically aligned with the first camera module and the first surface of the light diverging lens faces the first camera module. When the light diverging lens is in the second position, the light diverging lens is optically aligned with the second camera module and the second surface of the light diverging lens faces the second camera module.

Abstract: A lens module includes a seat supporting a first lens barrel and the second lens barrel thereon. The seat includes a body equipped with an electromagnet and two columns extending from the body. The first lens barrel includes a first sleeve equipped a lens therein. Two first arms extend from the sleeve and engage with the columns of the seat, respectively. The second lens barrel is equipped with a magnetic member corresponding to the electromagnet of the seat. The second lens barrel includes a second sleeve equipped a lens therein. Two second arms extend from the second sleeve and movably engage with columns of the seat. The electromagnet is configured for applying a magnetic force to the magnetic member to drive the second lens barrel to move between the seat and the first lens barrel.

Abstract: A camera module (10), includes a lens holder (12) having an aperture (1202), at least one lens module (11) threadedly installed in the lens holder, and a motor (13) mounted on the lens holder. The motor includes a rotor (132) and an endless belt (14), wherein the endless belt extends through the aperture and surrounds the lens module, and the rotor. The motor is configured for driving the lens module to move relative to the lens holder.

Abstract: An exemplary optical mold includes a first plate and a second plate. The first plate includes a plurality of locating blocks. Each of the locating blocks includes a first inclined side surface. The second plate includes a frustum. The frustum includes at least one second inclined side surface (e.g., a plurality thereof for a pyramidal frustum; a single one for a conical frustum). The at least one second inclined side surface is configured for guiding the first plate to a predetermined position. The at least one second inclined side surface is in contact with the respective first inclined side surfaces when the first plate is assembled with the second plate to define at least one mold chamber between such plates.

Abstract: An exemplary auto-focus imaging system includes a holder, an image sensor, a barrel unit, a stepper motor, and a belt. The image sensor is disposed in the holder. The barrel unit is coupled to the holder, in a threaded manner. The belt is looped around the barrel unit and the stepper motor. The stepper motor is disposed on the holder and configured for driving the barrel unit to move relative to the image sensor using belt drive.

Abstract: A lens module includes a barrel, a first lens, a lens holder and a second lens. The barrel has a barrel through hole defined therein. The first lens is fixed in the barrel through hole. The lens holder has a holder through hole defined therein. The second lens is fixed in the holder through hole. The lens holder is rotatably received in the barrel through hole of the barrel, whereby the second lens is coaxially aligned with the first lens. A method for assembling the lens module is also provided.

Abstract: A light-emitting diode (20) includes a base (22), an LED chip (24) and a single-piece enclosure (26). The LED chip is electrically mounted on the base configured for emitting light beams. The single-piece enclosure attaches to the base and encloses the LED chip therein. The enclosure includes a central convergent lens portion (260) configured for converging the light beams from the LED chip. A peripheral portion (262) surrounds and extends from the central convergent lens portion to the base. The central convergent lens portion has an outer aspheric surface (264) and is aligned with the LED chip.

Abstract: A digital camera module (100) includes a first sleeve (10), a first motor (20), a first barrel (30), a second sleeve (40), a second motor (50) and a second barrel (60). The first sleeve has at least one lens element (142) received therein. The first motor is received in the first sleeve. The first barrel has at least one lens element (32) received therein. The first motor engages with the first barrel and drives the first barrel to axially slide relative to the first sleeve. The second sleeve is located proximate to the first sleeve. The second motor is received in the second sleeve. The second barrel has at least one lens element (62). The second motor engages with the second barrel and drives the second barrel to axially slide relative to the second sleeve.