Abstract: A rotation mechanism includes a base, a loading member rotatably placed on the base, and a driving member rotatably placed on the base. The loading member includes a side surface. The driving member includes a main body. The main body of the driving member includes a side surface. The side surface of the loading member maintains contact with the side surface of the main body. When the driving member is rotated, the loading member is rotatably driven by the friction between the side surface of the loading member and the side surface of the main body. The driving member further includes a positioning portion placed on the main body, and after rotation through a predetermined number of degrees of the main body, the positioning portion positions the driving member accordingly.

Abstract: A punching device includes a worktable, a rotatable base, a puncher and a punching member. The worktable includes a loading plate, a planar plate, and a plurality of supporting rods. The plurality of supporting rods interconnects the loading plate and the planar plate, the loading plate defines a blanking hole thereof, the planar plate defines a guiding hole thereof. The rotatable base partially is received in the guiding hole and defines a first surface facing the blanking hole and a blind hole thereon, the rotatable base is capable of rotating about and moving along an axis of the blind hole. The puncher is fixed in the blind hole. The punching member includes a punching portion and defines a sleeving hole thereof. The punching member is sleeved on the puncher via the sleeving hole. The present disclosure further discloses a punching method thereof.

Abstract: A system for testing a lens module is provided. The lens module includes a barrel and a lens received in the barrel. The barrel includes a side surface which is parallel to the central axis thereof. The lens includes a smooth flat non-optical surface. The system includes an alignment device, a position detection device, and a processing device. The alignment device includes a leveling unit and an alignment block including an alignment surface for being in contact with and parallel to the side surface. The leveling unit adjusts the alignment surface to be perpendicular to a horizontal plane such that the side surface is perpendicular to the horizontal plane. The position detection device determines the three dimensional coordinates of three non-collinear points on the non-optical surface. The processing device determines whether the non-optical surface is parallel to the horizontal plane according to the coordinates of the three non-collinear points.

Abstract: A stamping apparatus for stamping a shading film includes a stamping head, at least one locking member and a sleeving ring. The sleeving ring defines an axial sleeving hole and includes a stamping portion formed on a distal end thereof and surrounding the axial sleeving hole. The sleeving ring is detachably sleeved on and locked to the stamping head via the at least one locking member. The stamping portion matches with the stamping head for cooperatively stamping the shading film.

Abstract: An assembling device for assembling an actuator and a lens module. The actuator includes a first top surface for supporting the lens module and a first bottom surface. The lens module includes a top portion for receiving lens and a bottom portion. The diameter of bottom portion is slightly larger than the top portion. The bottom portion further includes a second first bottom surface in contact with the first top surface. The assembling device includes a base, a support set, and a pressing sheet. The base includes a supporting surface for supporting the first bottom surface. The support set is above the base and defines at least three threaded holes therethrough. The pressing sheet is in contact with the second top surface. The at least three pins are movably threaded with the threaded holes correspondingly and configured for pushing the pressing sheet.

Abstract: A portable electronic device includes a case, a camera lens module, and a support. The case has a lens hole. The camera lens is received in the case and corresponding to the lens hole. The lens hole has a first connection portion. The first connection portion is engaged with a second connection portion of an external device accessory. Therefore, the external device accessory can be configured on the case and work with the camera lens module. The support is connected to the case, and positioned on the periphery of the lens hole. The support is configured for supporting the external device accessory on the case.

Abstract: A system for testing a lens module is provided. The lens module includes a barrel and a lens received in the barrel. The barrel includes a side surface which is parallel to the central axis thereof. The lens includes a smooth flat non-optical surface. The system includes an alignment device, a position detection device, and a processing device. The alignment device includes a leveling unit and an alignment block including an alignment surface for being in contact with and parallel to the side surface. The leveling unit adjusts the alignment surface to be perpendicular to a horizontal plane such that the side surface is perpendicular to the horizontal plane. The position detection device determines the three dimensional coordinates of three non-collinear points on the non-optical surface. The processing device determines whether the non-optical surface is parallel to the horizontal plane according to the coordinates of the three non-collinear points.

Abstract: A portable electronic device includes a case, a camera lens module, and a support. The case has a lens hole. The camera lens is received in the case and corresponding to the lens hole. The lens hole has a first connection portion. The first connection portion is engaged with a second connection portion of an external device accessory. Therefore, the external device accessory can be configured on the case and work with the camera lens module. The support is connected to the case, and positioned on the periphery of the lens hole. The support is configured for supporting the external device accessory on the case.

Abstract: A lens module includes a lens barrel, a lens mounted to the lens barrel, and an anti-dazzling film received in the lens barrel. The anti-dazzling film defines at least two first postholes. The lens module further includes at least two positioning posts. The positioning posts integrate with the first postholes to secure the anti-dazzling film to the lens barrel.

Abstract: A lens module includes a lens and an opaque plate. The lens is received in the main body, and includes an imaging portion and a non-imaging portion surrounding the imaging portion. An annular flange is extended upward from the image-side surface of the non-imaging portion. The flange and the image-side surface defines a receiving groove. The opaque plate includes a circular opening corresponding to the imaging portion and a lightproof solid body surrounding the opening. The opaque plate is disposed on the image-side surface of non-imaging portion of the lens with the lightproof solid body received in the receiving groove.

Abstract: A lens module includes a holder, a barrel, a lens, and a focus ring. The barrel is accommodated in the holder and threadedly coupled to the holder. The lens is received in the barrel. The focus ring surrounds and is securely fixed with the barrel. The focus ring is sandwiched between the holder and the barrel. The focus ring has at least two protrusions formed on an outer surface thereof. The at least two protrusions are symmetrical about a center of the focus ring.

Abstract: A lens module includes a lens and an opaque plate. The lens is received in the main body, and includes an imaging portion and a non-imaging portion surrounding the imaging portion. An annular flange is extended upward from the image-side surface of the non-imaging portion. The flange and the image-side surface defines a receiving groove. The opaque plate includes a circular opening corresponding to the imaging portion and a lightproof solid body surrounding the opening. The opaque plate is disposed on the image-side surface of non-imaging portion of the lens with the lightproof solid body received in the receiving groove.

Abstract: A lens module includes a holder, a barrel, a lens, and a focus ring. The barrel is accommodated in the holder and threadedly coupled to the holder. The lens is received in the barrel. The focus ring surrounds and is securely fixed with the barrel. The focus ring is sandwiched between the holder and the barrel. The focus ring has at least two protrusions formed on an outer surface thereof. The at least two protrusions are symmetrical about a center of the focus ring.

Abstract: A lens module includes a lens barrel, a lens mounted to the lens barrel, and an anti-dazzling film received in the lens barrel. The anti-dazzling film defines at least two first postholes. The lens module further includes at least two positioning posts. The positioning posts integrate with the first postholes to secure the anti-dazzling film to the lens barrel.

Abstract: An assembling device for assembling an actuator and a lens module. The actuator includes a first top surface for supporting the lens module and a first bottom surface. The lens module includes a top portion for receiving lens and a bottom portion. The diameter of bottom portion is slightly larger than the top portion. The bottom portion further includes a second first bottom surface in contact with the first top surface. The assembling device includes a base, a support set, and a pressing sheet. The base includes a supporting surface for supporting the first bottom surface. The support set is above the base and defines at least three threaded holes therethrough. The pressing sheet is in contact with the second top surface. The at least three pins are movably threaded with the threaded holes correspondingly and configured for pushing the pressing sheet.

Abstract: An exemplary lens module includes a barrel, a lens received in the barrel, and a generally C-shaped fastening member rotatably received in the barrel. The barrel includes an inner surface and a protrusion formed on the inner surface thereof. The fastening member is sandwiched between the lens and the protrusion. The fastening member has a gap defined between two distal ends thereof. The protrusion is passable through the gap. The fastening member is rotatable in the barrel relative to the protrusion such that the gap is misaligned with the protrusion.

Abstract: An exemplary lens module includes a barrel, a lens received in the barrel, and a ring-shaped fastening member. The barrel includes a supporting portion at a first end thereof and an internal thread formed at an opposite second end. The ring-shaped fastening member includes a side surface and an external thread formed on the side surface. The ring-shaped fastening member is received in the barrel and threadedly engaged with the barrel such that the lens is tightly fixed between the supporting portion of the barrel and the ring-shaped fastening member.

Abstract: An apparatus for assembling lenses includes a lens tray, a support and a tray-securing member. The lens tray defines a plurality of lens-receiving holes configured for receiving lenses and a plurality of positioning holes defined therein. The support is configured for supporting the lens tray and defines a plurality of positioning pins thereon configured for extending through the corresponding positioning holes of the lens tray. The tray-securing member includes a pressing portion defining a through hole therein and a plurality of sleeves configured for receiving the positioning pins therein. The pressing portion is configured for downwardly pressing the lens tray to prevent the lens tray from shaking.

Abstract: An exemplary cutting device includes a first main body and a second main body pivotally mounted on the first main body. The first main body includes a cutting portion arranged at one end thereof. The cutting portion includes two spaced blades disposed at one end thereof. Each blade has a cutting edge. The second main body includes a supporting portion, and the supporting portion faces the cutting edges of the blades. The supporting portion is movable in a direction towards the blades or away from the blades.