Abstract: A method of WDM-aware optical routing for on-chip devices is proposed, which is executed by a computer, the method comprising using the computer to perform the following steps of: performing a path separation to identify signal net candidates; performing a path clustering to find path clusters of the signal net candidates; performing an endpoint placement to find legal locations for WDM endpoints; and performing a pin-to-waveguide routing all nets to corresponding WDM waveguides.

Abstract: A 3D image capturing device includes a first lens module, a second lens module, a single sensor, an image sensor; a cross dichroic prism; a first mirror; and a second mirror. The first and second lens module have a first optical axis and a second optical axis, respectively. The second lens module is located juxtaposed with the first lens module. The second optical axis is parallel with the first optical axis. The first and second mirrors are arranged at opposite sides of the cross dichroic prism. The first and second mirrors are configured for reflecting and directing light beams from the first and second lens modules to the cross dichroic prism. The cross dichroic prism is configured to redirect the reflected light beams from the first and second mirrors to the image sensor.

Abstract: A tail lamp system for a vehicle includes a dynamic signal unit, a control unit, a set of input lines electrically connecting the dynamic signal unit with the control unit, an LED display board, and a set of output lines electrically connecting the LED display board with the control unit. The dynamic signal unit provides a plurality of dynamic signals relating to various instant driving information of the vehicle. The control unit receives each of the dynamic signals of the dynamic signal unit and outputs a corresponding control signal. The LED display board receives the control signal from the control unit and displays a corresponding pattern according to the received control signal to indicate instant driving information of the vehicle, for example, turning, braking, temporary stop and breakdown of the vehicle.

Abstract: A lens module includes a lens barrel, a first lens, a second lens, and a spacer. The lens barrel includes an object-side end and an image-side end opposite to the object-side end. The first lens is received in the lens barrel, and adjacent to the object-side end. The second lens is received in the lens barrel, and adjacent to the image-side end in relative to the first lens. The spacer is an annular plate, and includes an object-side surface, an image-side surface opposite to the object-side surface, and an inner sidewall. The spacer is positioned between the first lens and the second lens. The object-side surface faces the first lens, and the image-side surface faces the second lens. The intersection of the object-side surface and the inner sidewall forms a chamfer.

Abstract: A lens module includes a lens barrel, a first lens, a second lens, and a spacer. The lens barrel includes an object-side end and an image-side end opposite to the object-side end. The first lens is received in the lens barrel, and adjacent to the object-side end. The second lens is received in the lens barrel, and adjacent to the image-side end in relative to the first lens. The spacer is an annular plate, and includes an object-side surface, an image-side surface opposite to the object-side surface, and an inner sidewall. The spacer is positioned between the first lens and the second lens. The object-side surface faces the first lens, and the image-side surface faces the second lens. The intersection of the object-side surface and the inner sidewall forms a chamfer.

Abstract: A lens module includes a lens barrel and two lenses. The lens barrel has two opposite end surfaces, and a receiving hole through the two end surfaces. The receiving hole has a center axis. A ring-shaped block is formed on an inside surface of the lens barrel, and is coaxial with the receiving hole. The ring-shaped block has two contact surfaces adjacent to the two end surfaces, respectively. Each of the lenses includes an optical axis and a fixing portion. Each fixing portion has a contact surface. The contact surface of the lens has a shape matching the contact surface of the ring-shaped block, and is coaxial with the optical axis of the lens. The contact surfaces of the lenses contact tightly with the contact surfaces of the ring-shaped block.

Abstract: An exemplary lens module includes a lens barrel, and a first adjustable lens received in the lens barrel. The lens barrel includes a circumferential sidewall. The lens barrel also defines an accommodating cavity therein for receiving the first adjustable lens therein. The circumferential sidewall of the lens barrel defines an adjusting through hole therein. The adjusting through hole communicates with the accommodating cavity. The first adjustable lens has a circumferential side surface. The circumferential side surface defines a first adjusting notch therein. The first adjusting notch communicates with the adjusting through hole.

Abstract: A fixed-focus lens module includes an outer lens barrel, an inner lens, a first lens, and a second lens group. The outer lens barrel includes a first open end, a first cavity, and a second open end arranged in the order from the object side to the image side of the outer lens barrel. The inner lens barrel is received in the outer lens barrel adjacent to the first open end. The first lens is received in the inner lens barrel. The second lens group is received in the outer lens barrel adjacent to the second open end. An gap is defined between an outer wall of the inner lens barrel and an inner wall of the outer lens barrel at the first open end, and the center axis of the inner lens barrel is adjustable relative to the outer lens barrel for adjusting the alignment between the first lens and the second lens group.

Abstract: An image capturing device includes a housing defining an aperture, a first lens module arranged inside the housing, a second lens module arranged inside the housing, and a light reflection assembly aligned with the aperture. The first lens module and the second lens module are positioned at opposite sides of the aperture. The light reflection assembly includes a reflecting mirror. The light reflection assembly is rotatable between a first position where the reflecting mirror reflects light from the aperture towards the first lens module and a second position where the reflecting mirror reflects light from the aperture towards the second lens module.

Abstract: A lens module includes a lens barrel, a first lens, a second lens, and a spacer. The lens barrel includes an object-side end and an image-side end opposite to the object-side end. The first lens is received in the lens barrel, and adjacent to the object-side end. The second lens is received in the lens barrel, and adjacent to the image-side end in relative to the first lens. The spacer is an annular plate, and includes an object-side surface, an image-side surface opposite to the object-side surface, and an inner sidewall. The spacer is positioned between the first lens and the second lens. The object-side surface faces the first lens, and the image-side surface faces the second lens. The intersection of the object-side surface and the inner sidewall forms a chamfer.

Abstract: A lens module includes a lens barrel, a first lens, a second lens, and a spacer. The lens barrel includes an object-side end and an image-side end opposite to the object-side end. The first lens is received in the lens barrel, and adjacent to the object-side end. The second lens is received in the lens barrel, and adjacent to the image-side end in relative to the first lens. The spacer is an annular plate, and includes an object-side surface, an image-side surface opposite to the object-side surface, and an inner sidewall. The spacer is positioned between the first lens and the second lens. The object-side surface faces the first lens, and the image-side surface faces the second lens. The intersection of the object-side surface and the inner sidewall forms a chamfer.

Abstract: A lens module includes a first lens and a spacer. The first lens is arranged adjacent to an object side of the lens module. The first lens includes a first optical portion and a first support portion surrounding the first optical portion. The first support portion includes a first slanted annular surface which is facing inwardly of the first lens and is adjacent to an image side of the lens module. The spacer is arranged adjacent to the image side of the lens module. The spacer includes a spacer portion and a first shielding portion extending from the spacer portion. The first shielding portion covers the first slanted annular surface.

Abstract: An exemplary optical fiber connector includes a housing, and two lenses. The housing defines two first blind holes each configured for receiving an optical fiber. The two lenses are formed on the housing and each of the lenses is aligned with a corresponding first blind hole. The two second blind holes are defined on the housing and each of the second blind hole run through the housing to the bottom of a corresponding first blind hole allowing glue to accumulate on the bottom of the first blind hole.

Abstract: A lens module includes a barrel, a holder, and a ring-shaped elastic member. The barrel includes a connecting portion and a resisting portion, the connecting portion includes a first screw thread. The holder includes a second screw thread engaged with the first screw thread. The ring-shaped elastic member is compressed between the resisting portion of the barrel and the holder. The elastic member includes a number of first segments and a number of second segments, the first segments and the second segments are arranged in an alternate fashion and connected to each other, at least one of the first segments and the second segments is V-shaped.

Abstract: An exemplary injection mold for manufacturing a fiber optic connector includes a first mold, a second mold, an insert, two first positioning bar, and four second positioning bars. The first mold and the second mold cooperatively define a mold cavity. The mold cavity includes two lens molding recesses. The two inserts are attached to the second mold and located in the mold cavity. A dimension of each second bar in cross section is substantially smaller than that of each first positioning bar. One first positioning bar and two second positioning bars are arranged around each insert to position the insert, such that the inserts is suspended in the mold cavity and precisely aligns with the respective molding recesses.

Abstract: A lenses assembly includes a first lens, a second lens, and adhesive material. The first lens includes two axially extending protrusions. The second lens includes two radially extending protrusions. The second lens engages with the first lens by engagement between the axially extending protrusions and radially extending protrusions. The axially extending protrusions and radially extending protrusions are alternately arranged around a circumferential direction of the first lens. The adhesive material is filled into gaps between the engaged protrusions to fixedly interconnect the first lens and the second lens.

Abstract: A camera holder includes a supporting frame, a sliding block, and an adjustable assembly. The supporting frame includes a receiving cavity. The sliding block is received in the receiving cavity and slidably attached to the supporting frame. The sliding block and the supporting frame cooperatively support a camera. The adjustable assembly includes a shaft, a gear, a gear rack, a base, and a revolving head. The shaft is attached to the supporting frame. The gear is mechanically coupled to the shaft. The gear rack is meshed with the gear rack. The base is arranged on a horizontal plane and attached to an end of the gear rack to support the supporting frame. The revolving head is attached to the gear, and the revolving head is configured for rotating the gear such that the gear and the gear rack cooperatively raise or lower the camera relative to the horizontal plane.

Abstract: A portable electronic device includes a shell, an image capturing assembly, a signal processing circuit, and a connection plate. The shell defines a first annular shaped guiding slot. The image capturing assembly includes a camera module. The camera module includes a substrate and a flexible circuit board (FPC). The FPC has one end connected to the substrate and another end electrically coupled to the signal processing circuit. The connection plate includes a first plate positioned on the shell and a second plate perpendicular to the first plate. A second guiding slot is defined on the second plate and aligned with the first guiding slot on the shell. The connection plate, the shell, the first and second annular guiding slots cooperatively define a laid-down T-shaped receiving groove, the image capturing assembly is received in the T-shaped groove and is slidable along the T-shaped groove.

Abstract: An exemplary camera module includes a barrel and a holder. The holder includes an accommodating space defined therein. The barrel is received in the accommodating space of the holder. Independent grooves are formed in one of the outer cylindrical surface of the barrel and the inner cylindrical surface the holder. Stripe-shaped protrusions are formed on the other of the outer cylindrical surface of the barrel and the inner cylindrical surface the holder. Each stripe-shaped protrusion is engaged in a respective groove.

Abstract: An LED light fixture includes a post having a fixing bar at a top end thereof, a first lamp mounted on the fixing bar, and a second lamp rotatably mounted on the fixing bar. The first and second lamps are capable of rotating with respect to the fixing bar to change an angle between the first and second lamps, to thereby change an illumination area and intensity distribution of the LED light fixture. In one position, the second lamp overlaps the first lamp, and LED light sources in the first lamp are alternate with those of the second lamp.