Abstract: Various embodiments illustrated herein disclose a housing of an imaging unit. The housing comprising an outer surface and an inner surface, wherein the inner surface of the housing defines a lens channel, wherein the inner surface of the lens channel defines a contact point that protrudes outwardly from the inner surface into the lens channel. The inner surface of the lens channel further defines a through hole, in the lens channel, that extends from the inner surface of the lens channel to the outer surface of the housing. The lens channel is configured to receive a lens barrel comprising a groove, wherein the groove is exposed to the through hole when the lens barrel is received in the lens channel.

Abstract: A camera lens with complete symmetry reduces or avoids light deviation and stray light reflections in a lens group, notwithstanding manufacturing marks and defects. A lens barrel and a lens group are also disclosed. The lens barrel is a hollow structure for receiving the lens group. The lens group defining at least one recess on an outer sidewall as a manufacturing mark receives a layer of black glue to improve the integrity of shape. A lens module and an electronic device using such a camera lens is also provided.

Abstract: An annular optical component includes an inner surface, an outer surface, an object-side surface and an image-side surface. The inner surface includes multiple L-shaped annular grooves. The annular optical component includes multiple stripe-shaped structures disposed in the L-shaped annular grooves. The L-shaped annular grooves include an object-side L-shaped annular groove closest to the object-side surface and an image-side L-shaped annular groove closest to the image-side surface. A bottom diameter of the image-side L-shaped annular groove is larger than a bottom diameter of the object-side L-shaped annular groove. Each L-shaped annular groove includes a first side and a second side located between the object-side surface and the image-side surface. The stripe-shaped structures are disposed on the first side or the second side, and a degree of inclination between the first side and the central axis is larger than a degree of inclination between the second side and the central axis.

Abstract: An optical system is provided, including a fixed part, a movable part, a first optical element, a driving assembly, and a circuit assembly. The movable part is movable relative to the fixed part. The first optical element is connected to the movable part. The driving assembly is configured for driving the movable part to move relative to the fixed part. The circuit assembly is electrically connected to the driving assembly.

Abstract: A lens apparatus includes a plurality of lens holders, a first cam barrel, a second cam barrel, and a third cam barrel each having a cam groove configured to move at least one of the plurality of lens holders in an optical axis direction. The first cam barrel is located outside the second cam barrel and the third cam barrel, and the second cam barrel is located outside the third cam barrel. A predetermined condition is satisfied.

Abstract: A camera lens (1) comprising at least one focus ring (2) to manually adjust a focus of the camera. The camera lens (1) further comprises at least one locking ring (3) comprising an outer ring (4). The locking ring (3) is adapted to be adjusted to lock the focus ring (2) in a specific position.

Abstract: A driving module is provided. The driving module includes a sensor module, a holder and at least three positioning components. The holder corresponds to the sensor module and is for holding an optical element. The positioning components are disposed between the sensor module and the holder.

Abstract: A camera system includes a camera and an underwater housing. The underwater housing, when submerged underwater, causes refraction of light entering the camera, thereby affecting focus. The camera includes a lens assembly adjustable between a first secured position at a first distance from an image sensor to enable the camera to capture images that are in focus when the camera is outside of water. The lens assembly is adjustable to a second secured position at a second distance from the image sensor to enable the camera to capture images that are in focus when the camera operates within the underwater housing and submerged under water.

Abstract: A lens-group moving apparatus for moving, in an optical system including a plurality of lenses, a lens group including at least one lens among the plurality of lenses includes: a moving lens frame that holds the lens group; a fixed cylinder that holds the moving lens frame movably in an optical axis direction; a moving frame that is movable in the optical axis direction and changes a relative position with respect to the fixed cylinder; a moving structure that causes the moving frame to move in the optical axis direction; an intermediate member that contacts the moving frame and the moving lens frame and that transmits a movement of the moving frame to the moving lens frame; and an urging member that urges the moving lens frame in a direction of the intermediate member.

Abstract: A lens unit includes a plurality of lenses, and a holder in a tube shape which holds the plurality of the lenses. An inner peripheral face of the holder is formed with a plurality of alignment protruded parts protruded from the inner peripheral face to an inner side in a circumferential direction, each of the alignment protruded parts is provided with a first alignment protruded part whose protruding dimension is different and a second alignment protruded part, and the second alignment protruded part is protruded from the first alignment protruded part to the inner side of the inner peripheral face to be abutted with an outer peripheral face of one of the lenses.

Abstract: A lens apparatus includes a first barrel including a first connection portion, a second barrel holding a lens, movable in an optical axis direction of the lens relative to the first barrel, and including a second connection portion, a flexible printed circuit board electrically connecting the first connection portion and the second connection portion, and a restricting portion provided in either one of the first barrel and the second barrel in the radial direction and restricting a portion of the flexible printed circuit board between the first and second connection portions from moving in the radial direction.

Abstract: On embodiment of the invention provides an optical lens includes a lens barrel, a first lens group and a photo interrupter disposed in the lens barrel, a light-shading sheet and a power machine. The photo interrupter has an optical transmitter and an optical receiver, the optical transmitter emits a light beam in a first direction, and the optical receiver receives the light beam. The light-shading sheet is disposed in a propagation path of the light beam and has two shading parts with mutually different lengths. The power machine is linked to a kinetic machine part, and the kinetic machine part is connected to the first lens group.

Abstract: Provided is a lens barrel which has a lens holding frame that holds a lens and has cam followers mounted on an outer circumferential portion thereof by screws and nuts and a cylinder member that has grooves into which the cam followers are fitted, and in which a position of the lens holding frame is regulated by the grooves. Holes into which the nuts are fitted and bottomed recesses with which bottoms of the cam followers come into contact are formed in places of the outer circumferential portion on which the cam followers are mounted, and axial end faces of the nuts protrude from the recesses to be fitted into inner circumferential portions of the cam followers.

Abstract: A lens includes a barrel and a first optical element. The barrel includes an inner circumferential surface surrounding an axis and defining an accommodation space, an object side and an image side spaced at two ends of the axis and interconnecting with the accommodation space, and a first mounting portion integrally formed around the inner circumferential surface. The first mounting portion includes a first blocking portion having a first blocking surface corresponding to the object side. The first optical element is received in the accommodation space, and disposed in the first mounting portion, and includes a first body portion and a first stopping portion. The first stopping portion includes a first stopping surface leaning against the first blocking surface. The distance between an outermost edge of the first stopping portion and the axis is greater than the distance between an innermost edge of the first blocking portion and the axis.

Abstract: A lens barrel module is disclosed to include a lens barrel unit and a flow path unit. The lens barrel unit extends along an axis and includes a peripheral wall that surrounds the axis and that has a first end adjacent to an object side of a lens assembly and a second end opposite to the first end and adjacent to an image side of the lens assembly. The peripheral wall defines an accommodation space configured as a series of accommodation sections for receiving the optical members. The flow path unit is formed in the lens barrel module and is in spatial communication with at least two of the accommodation sections. A lens assembly including the lens barrel module is also disclosed.

Abstract: An imaging lens including a first lens group, a second lens group, and an aperture stop is provided. The first lens group is disposed between an object side and an image side. The second lens group is disposed between the first lens group and the image side. The aperture stop is disposed between the first lens group and the second lens group. The imaging lens includes at least three cemented lenses, each of the cemented lenses includes at least one lens having non-zero refractive power, and at least one lens of each of the cemented lenses has an Abbe number greater than 80.

Abstract: According to a camera module (1), a lens barrel (2) and a lens holder (8) adhere to each other via an adhesive layer (12), and the lens barrel (2) has a recess (2a) having a bottom surface (2a3) that is located between an upper side surface (8a1) and a lower side surface (8a2) of a groove (8a).

Abstract: A lens module is disclosed. A lens module includes a lens barrel including a first barrel wall extended horizontally and a second barrel wall extended from the first barrel wall; a lens group including at least one lens located in the lens barrel, the lens comprising a first surface close to the first barrel wall and a second surface opposite to the first surface; and a stop clamped between the lens barrel and the lens. The first surface of the lens is provided with a first slope, an inner surface of the first barrel wall of the lens barrel is provided with a second slope abutting against first slope, and the stop creates a light hole for the lens.

Abstract: A projection lens includes lens frames each of which holds a lens group and has cam pins, a guide barrel which has linear grooves through which the cam pins are inserted and into which the lens frames are sequentially fit and inserted, and a cam barrel into which the guide barrel is fit and inserted, which has cam grooves with which the cam pins protruding through the linear grooves engage, and which is rotated relative to the guide barrel to guide the cam pins along the linear grooves and the cam grooves and hence move the lens frames along the linear grooves. A protrusion is provided on the inner surface of the guide barrel, and the protrusion comes into contact with one of the lens frames so that the cam pins of the lens frame are positioned at the ends of the corresponding cam grooves.

Abstract: An optical device includes a base; an image sensor disposed on the base; an outer frame connected to the base and having a flat surface; an inner frame having a protrusion and movable between a first position and a second position with respect to the base; and a lens group disposed on the inner frame and having an optical axis, wherein the protrusion abuts the flat surface and the optical axis extends through the image sensor when the inner frame moves to the first position, and the inner frame is accommodated in a space when the inner frame moves to the second position.

Abstract: A compound optical assembly is constructed from a plurality of stacking elements for spacing, aligning, and retaining optical elements within the assembly. Stacking faces of the stacking elements are measured and low-order surface errors are extracted, represented by mathematical approximations having a primary angular frequency. The stacking elements including the optic holders are relatively oriented to promote complementarity between the low-order surface errors of mating stacking faces.

Abstract: A heads-up display device for displaying graphic elements in view of a user while the user views an environment through a display screen. The heads-up display device includes at least one projector that projects a graphic element on a frontal focal plane in view of the user while the user views the environment through the display screen, and at least one projector that projects a graphic element on a ground-parallel focal plane in view of the user while the user views the environment through the display screen. The projector that projects the graphic element on the frontal focal plane is mounted on an actuator that linearly moves the projector so as to cause the frontal focal plane to move in a direction of a line-of-sight of the user. The projector that projects the ground-parallel focal plane is fixedly arranged such that the ground-parallel focal plane is static.

Abstract: A pop up prism camera (10) having a pop up prism lens assembly (11). A first lens assembly (14), a second lens assembly (18), and a prism assembly (21) are moved in relationship to a camera housing (12) controlled by a cam tube (20). The prism assembly (21) projects outside the camera housing (12) when the pop up prism camera (10) is in an operational configuration. A prism (100) of the prism assembly (21) redirects an optical path (48). A non-angled portion (44) of a first cam groove (30) causes the prism assembly (21) to remain fixed relative to the camera housing (12) while continued rotation of the cam tube (20) allows the first lens assembly (14) and the second lens assembly (18) to continue to move to accomplish a lens zoom function.

Abstract: A driving apparatus of a zoom lens includes a rotary barrel, a fixed barrel, a guiding rail, and a lens frame. The rotary barrel has at least a protrusion on an outer side thereof. The fixed barrel receives the rotary barrel therein, and has at least a guiding slot and a recess on an inner side thereof. The protrusion of the rotary barrel engages the guiding slot of the fixed barrel, and the guiding slot is communicated with the recess. The guiding rail is provided in the recess of the fixed barrel. The lens frame is received in the fixed barrel, and engages the guiding rail to be driven to move along the guiding rail. Therefore, all the elements of the driving apparatus are received in the fixed barrel that it may reduce the size of the driving apparatus.

Abstract: Provided is a lens barrel including: a guide shaft in an axial form supported by a reference member; a holding member holding an optical system, and movable in an axial direction of the guide shaft with respect to the reference member; and an interlocking member including an engaging section engaging with the holding member, the interlocking member moving in the axial direction while rotating around an optical axis of the optical system, and moving along the guide shaft without rotating the holding member. The lens barrel may include a driving cylinder including a cam groove engaging with the interlocking member, where when rotated around the optical axis, the driving cylinder drives the interlocking member by means of the cam groove, to cause the interlocking member to move linearly in the direction of the guide shaft.

Abstract: This lens barrel includes a first frame, a second frame, a third frame, an annular portion, and a bayonet portion. The bayonet portion protrudes to both sides beyond the width of the rectilinear guide portion in the peripheral direction, and is divided by a plurality of slits. The bayonet portion is supported on the second frame at two or more places including both sides of the rectilinear guide portion in the peripheral direction.

Abstract: A lens assembling device is configured to assemble lenses into a lens barrel. The lens assembling device includes a hollow external barrel, a hollow internal barrel, and a pushing element. The external barrel includes a first hollow chamber and a second hollow chamber coaxial with the first hollow chamber. The first hollow chamber is configured to partly receive the lens barrel. The internal barrel is connected to the push element and is received in the second hollow chamber, and is configured to receive a lens. The pushing element is configured to push the lens from the internal barrel into the lens barrel.

Abstract: A camera lens is formed with a casing and a lens stack having at least one lens element, the lens stack arranged within the casing. A spring arrangement is pre-compressed to exert a clamping force between the casing and the lens stark basically in a direction of an optical axis of the at least one lens element.

Abstract: A lens barrel includes a plurality of lens groups including a retractable lens group, a plurality of lens retaining frames to retain the plurality of lens groups, a movable lens barrel to retain the plurality of lens retaining frames therein, and a fixed cylinder portion to retain the movable lens barrel therein. The plurality of lens retaining frames, the movable lens barrel and the fixed cylinder portion are configured to move the plurality of lens groups between a collapsed state with at least one portion of the plurality of lens groups collapsed and a photographing state. The plurality of lens retaining frames include a retractable lens retaining frame configured to movably retain the retractable lens group so as to position the plurality of lens groups in photographing positions on a single optical axis in the photographing state and to retract the retractable lens group to a retracted position outside an inside diameter position of the fixed cylinder portion in the collapsed state.

Abstract: An imaging device comprises a lens barrel including an optical system that collects light from a predetermined viewing area and that defines an optical axis; an imaging unit that receives the light collected by the optical system and generates image data, the image data defining a main image that includes a determined sub area; a ring-shaped operation ring that is provided on an outer circumference of the lens barrel and that is manually rotatable about the optical axis of the optical system; and an area change unit that changes at least one of (A) a size of the determined sub area, or (B) a position of the determined sub area, responsive to a manual operation of the operation ring.

Abstract: A lens barrel assembly, which has improved shock resistance and quickly resumes normal operation when external shock is applied, includes a first barrel including an elastic moving pin which protrudes toward a second barrel and elastically deforms. The second barrel includes a first guide groove into which the elastic moving pin is inserted and which extends obliquely in a circumferential direction to guide a movement of the first barrel, and at least one second guide groove including an end separated from the first guide groove and another end connected to the first guide groove to guide the elastic moving pin so that the elastic moving pin returns into the first guide groove when the elastic moving pin is separated from the first guide groove. The second barrel rotates in an optical axis direction and supports the first barrel so that the first barrel moves relative to the optical axis direction.

Abstract: A lens barrel includes: a first cylindrical member that extends in a prescribed axial direction; a second cylindrical member that slides in the prescribed axial direction along an inner circumferential surface of the first cylindrical member; an axis member that slides in the prescribed axial direction along an inner circumferential surface of the second cylindrical member; and a first holding member that is fixed to the axis member, is guided in the prescribed axial direction by the slide of the axis member against the second cylindrical member, and holds a first optical member.

Abstract: A lens barrel includes a first frame and a second frame. The first frame includes a plurality of cam grooves. The second frame includes a plurality of cam followers that engage with each of the plurality of cam grooves, and a gear portion. In this case, if rotational force is transmitted to the gear portion, the second frame moves in the optical axis direction while rotating with respect to the first frame. At least one of the plurality of cam followers is disposed on the image plane side of the gear portion.

Abstract: An optical element unit is provided comprising an optical element group for projecting light along an optical axis of the optical element group and a housing having an inner housing part partly defining a first space and a light passageway between the inner housing part and a second space. The inner housing part receives the optical element group. The optical element group comprises an ultimate optical element located in the region of the light passageway. A load-relieving device is provided adjacent to the ultimate optical element, the load relieving device partly defining the first space and the second space and at least partly relieving the ultimate optical element from loads resulting from pressure differences between the first space.

Abstract: The image catching lens comprises a forwarding barrel and a guider. The forwarding barrel has an outer surface and an inner surface, and comprises a forwarding groove group, wherein the forwarding groove group comprises a first forwarding groove formed on the outer surface of the forwarding barrel and a second forwarding groove formed along the first forwarding groove and toward the inner surface. The guider comprises a guiding group, wherein the guiding group comprises a protrusion disposed corresponding to the second forwarding groove.

Abstract: A lens barrel of the present invention includes: a fixing frame having a plurality of cam grooves that are formed an inner circumferential surface of the fixing frame and also having a protrusion provided between any adjacent two of the cam grooves among a plurality of the cam grooves; and a drive frame having cam followers that are provided to an outer circumferential surface of drive frame, are engaged with the cam grooves, and are movable along the cam grooves. With this configuration, when an external force is applied to the drive frame, an end portion of the drive frame comes into contact with the protrusion to prevent the cam followers from coming out of the cam grooves.

Abstract: Provided is a lens barrel in which tilt adjustment can be made depending on the position of a lens unit in the optical axis direction. This lens barrel is characterized by comprising: at least three guide bars provided so as to extend along the optical axis direction; drive means that respectively drive said at least three guide bars in the optical axis direction; a lens frame holding unit that holds an image-capturing lens, the lens frame holding unit being attached to at least three guide bars and being driven in the optical axis direction by said at least three guide bars; and a control unit that controls said at least three linear actuators so as to adjust the respective drive amounts in the optical axis direction of said at least three guide bars and to tilt the lens frame holding unit from a direction orthogonal to the optical axis.

Abstract: A zoom lens device includes a base barrel, first and second cam barrels connected rotatably to and movable relative to the base barrel, first and second lens barrels connected respectively to the first and second cam barrels, and a driving barrel surrounding and rotatable relative to the base barrel. Rotation of the driving barrel drives the first and second cam barrels to rotate synchronously and move individually along an axis, and therefore causes individual axial movements of the first and second lens barrels along the axis.

Abstract: An adjustment jig is inserted into an opening and an opening, and a screw provided on an inner lens frame holding a correcting lens is rotated. With the rotation of the screw, a front end of the inner lens frame moves in a direction toward an optical axis or radially outside the correcting lens. With this, the inner lens frame is moved in a direction toward the optical axis or radially outside the correcting lens, and the tilt of the correcting lens is decreased.

Abstract: A zoom lens barrel assembly includes: a first zoom ring comprising a first protrusion; a guide ring disposed around the first zoom ring comprising a first guide slot through which the first protrusion passes, and a second guide slot; a second zoom ring comprising a second protrusion, and movable in an axial direction; a first cylinder comprising a guide groove into which the second protrusion inserts, and a third protrusion passing through the second guide slot, and disposed between the first and second zoom rings; a second cylinder disposed around the guide ring comprising a fourth protrusion, a first groove portion into which the first protrusion inserts, and a second groove portion into which the third protrusion inserts, and supporting the first zoom ring and the first cylinder; and an external cylinder disposed around the second cylinder and comprising a third groove portion into which the fourth protrusion inserts.

Abstract: A lens holder includes: a first barrel with a plurality of helicoidal grooves that extend from a base portion to an end portion and at positions with rotational symmetry; and a second barrel with a plurality of protrusions that respectively enter the plurality of helicoidal grooves. The helicoidal grooves are respectively divided into helicoidal groove sections in multiple stages with a helicoidal groove section on a base portion side and a helicoidal groove section on an end portion side being disposed at angles that do not overlap. The first barrel includes circumferential grooves on the middle portion and circumferential grooves on the end portion. The middle circumferential grooves connect the end on the end side of the helicoidal groove sections on the base side to the end on the base side of the helicoidal groove sections on the end side and guide the protrusions in the circumferential direction.

Abstract: A lens barrel assembly includes: a lens barrel that is rotatable about an optical axis and is movable in a direction along the optical axis; a moving plate that is combined with the lens barrel so that the moving plate is rotated together with the lens barrel and is movable with respect to the lens barrel in the direction along the optical axis; a power transmission unit that is installed on the moving plate and transmits an outside rotation force to the lens barrel via the moving plate; and a stopper that is disposed on a path on which the moving plate moves in the direction along the optical axis and that limits a movement of the moving plate in the direction along the optical axis in a partial section of the path on which the lens barrel is moved.

Abstract: A zoom lens barrel assembly includes: a first barrel including an inlet through which light is incident on the first barrel; a second barrel that surrounds at least a part of an external surface of the first barrel and supports the first barrel to be movable to protrude forward from a front portion of a main body; a plurality of blades disposed to be moved between an open position in which the plurality of blades are retreated to an outside of the inlet and a closed position in which the inlet is blocked; and an accommodation unit that extends from an end of the first barrel to an outside of the first barrel so as to accommodate the blades that have been moved to the open position.

Abstract: This lens barrel includes a first frame, a second frame, a third frame, an annular portion, and a bayonet portion. The bayonet portion protrudes to both sides beyond the width of the rectilinear guide portion in the peripheral direction, and is divided by a plurality of slits. The bayonet portion is supported on the second frame at two or more places including both sides of the rectilinear guide portion in the peripheral direction.

Abstract: An imaging apparatus includes a first lens barrel, a second lens barrel disposed side by side with the first lens barrel in a direction perpendicular to an optical axis of the first lens barrel, a reference metal sheet including a mounted surface portion mounted on a surface perpendicular to the optical axis of the first lens barrel and a reference surface portion facing an optical axis direction, an adjustment metal sheet including a base surface portion mounted on a surface perpendicular to an optical axis of the second lens barrel and an adjustment surface portion facing an optical axis direction and positioned side by side with the reference surface portion in state of being separated in the optical axis direction, and an adjustment section changing a direction of the adjustment surface portion to reference surface portion and adjusting a direction of optical axis of second lens barrel.

Abstract: A lens barrel according to an embodiment of the present invention includes a fixed barrel, a movable member that is movable relative to the fixed barrel, a flexible circuit board that is bent in a U-shape and hangs between the fixed barrel and the movable member, and a flexible circuit board guide. The flexible circuit board guide secures one side of the flexible circuit board that is continuous with the bent portion of the flexible circuit board to the fixed barrel while the one side of the flexible circuit board extends in a moving direction of the movable member.

Abstract: A lens barrel of the present invention includes: a fixing frame having a plurality of cam grooves that are formed an inner circumferential surface of the fixing frame and also having a protrusion provided between any adjacent two of the cam grooves among a plurality of the cam grooves; and a drive frame having cam followers that are provided to an outer circumferential surface of drive frame, are engaged with the cam grooves, and are movable along the cam grooves. With this configuration, when an external force is applied to the drive frame, an end portion of the drive frame comes into contact with the protrusion to prevent the cam followers from coming out of the cam grooves.

Abstract: A lens barrel includes an optical system, a first frame, a second frame, a third frame, a rectilinear frame and a cam frame. The first frame supports the optical system. The second frame supports the optical system and restricts rotation of the first frame about an optical axis of the optical system. The third frame supports the optical system and restricts rotation of the second frame about the optical axis of the optical system, and the rectilinear frame restricts rotation of the third frame about the optical axis of the optical system.

Abstract: The image catching lens comprises a forwarding barrel and a guider. The forwarding barrel has an outer surface and an inner surface, and comprises a forwarding groove group, wherein the forwarding groove group comprises a first forwarding groove formed on the outer surface of the forwarding barrel and a second forwarding groove formed along the first forwarding groove and toward the inner surface. The guider comprises a guiding group, wherein the guiding group comprises a protrusion disposed corresponding to the second forwarding groove.

Abstract: There is provided a camera module. The camera module includes: a lens barrel including at least one lens; a housing receiving the lens barrel and having an opening in one surface thereof; an actuator driving the lens barrel through the opening; and a preload control part receiving the actuator therein and forming one surface of the housing by being coupled to the opening such that preload generated from the lens barrel and the actuator is controlled.