# US 11,310,405 B2 · Multi-aperture cameras with at least one two state zoom camera > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,405 B2 - Document ID: US11310405B2 - Status: Granted - Kind: B2 - Application number: 17/293,914 - Filed: 2020-02-19 - Published: 2022-02-10 - Granted: 2022-04-19 - Earliest claimed: 2019-02-25 - Assignees: Corephotonics Ltd. - Applicants: Corephotonics Ltd. - Inventors: Gal Shabtay; Ephraim Goldenberg; Emil Bronstein; Itay Yedid; Roy Rudnick; Michael Dror; Gil Bachar; Yiftah Kowal - Web page: https://patentgrep.com/patent/US11310405B2 ## CPC - H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof - G02B 7/102: {controlled by a microcomputer (cameras with interchangeable lenses G03B17/14)} - G02B 13/0045: {having five or more lenses} - G02B 13/0065: {having a beam-folding prism or mirror} - G02B 15/143103: {arranged ++-} - G03B 5/00: Adjustment of optical system relative to image or object surface other than for focusing - G03B 17/17: with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera - G03B 30/00: Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles - H04N 23/45: for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images - H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils - H04N 23/67: Focus control based on electronic image sensor signals - H04N 23/69: Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming - H05K 1/181: associated with surface mounted components - G03B 2205/0046: Movement of one or more optical elements for zooming - G03B 2205/0069: using electromagnetic actuators, e.g. voice coils - H04N 17/002: {for television cameras} - H05K 2201/10227: Other objects, e.g. metallic pieces - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract Multi-cameras and in particular dual-cameras comprising a Wide camera comprising a Wide lens and a Wide image sensor, the Wide lens having a Wide effective focal length EFLW and a folded or non-folded Tele camera comprising a Tele lens with a first optical axis, a Tele image sensor and an OPFE, wherein the Tele lens includes, from an object side to an image side, a first lens element group G1, a second lens element group G2 and a third lens element group G3, wherein at least two of the lens element groups are movable relative to the image sensor along the first optical axis to bring the Tele lens to a Macro state or to two zoom states, wherein an effective focal length (EFL) of the Tele lens is changed from EFLT,min in one zoom state to EFLT,max in the other zoom state, wherein EFLTmin>1.5×EFLW and wherein EFLTmax>1.5×EFLTmin. In the Macro state, the lens with EFLT,min allows for focusing on objects with short object-camera distances such as 5 cm. Actuators for enabling the movements are also disclosed. ## Claims ### Claim 1 A folded camera, comprising: a) a lens that includes a lens element group G1, a lens element group G2 and a lens element group G3 along a lens optical axis; b) an image sensor; c) an optical path folding element (OPFE); and d) an actuator for moving G1 and G3 together relative to the image sensor in a direction parallel to the lens optical axis to bring the lens to two zoom states, wherein G1 and G3 are fixedly attached to each other, wherein G2 is floating between two stops, and wherein the movement of G1 and G3 together enables attachment of G2 to G1 in one zoom state and to G3 in another zoom state. ### Claim 2 (depends on 1) The camera of claim 1, wherein the fixed attachment between G1 and G3 is enabled by a plurality of rods connecting G1 and G3, and wherein G2 is guided by the plurality of rods and able to move along the direction parallel to the lens axis relative to the plurality of rods. ### Claim 3 (depends on 1) The camera of claim 1, wherein the attachment of G2 to G1 or G3 is by magnetic force. ### Claim 4 (depends on 1) The camera of claim 1, wherein the movement of G1 and G3 together is over a stroke larger than 2 mm and smaller than 20 mm, and wherein a stroke of the movement of G2 between the two stops is smaller than half of the stroke of G1 and G3. ### Claim 5 (depends on 1) The camera of claim 1, wherein the lens has an effective focal length EFL, wherein EFL is changed from a minimal value EFL,min in the first zoom state to a maximal value EFLmax in the second zoom state and wherein a ratio EFLmax/EFL,min is >1.5. ### Claim 6 (depends on 1) The camera of claim 1, wherein the actuator includes a shape memory alloy (SMA) actuator having a plurality of SMA springs and a plurality of mechanical springs. ### Claim 7 (depends on 6) The camera of claim 6, wherein the plurality of SMA springs includes four springs and wherein the plurality of mechanical springs includes two springs. ### Claim 8 (depends on 6) The camera of claim 6, further comprising a voice coil motor (VCM) mechanism for focusing the lens. ### Claim 9 (depends on 8) The camera of claim 8, wherein the focusing of the lens is performed by moving G1+G2+G3 together. ### Claim 10 (depends on 9) The camera of claim 9, wherein the lens is included in a lens and sensor module that also includes a G2 stop mechanism with a first G2 stop and a second G2 stop, and wherein one of the first or second G2 stops is removable to allow movement of G1+G2+G3 to be over a large stroke of not less than 2 mm for Macro-photography. ### Claim 11 (depends on 1) The camera of claim 1, wherein the actuator includes at least three coils coupled to a plurality of respective magnets and or to magnet polarizations. ### Claim 12 (depends on 11) The camera of claim 11, wherein a position of the at least three coils relative to the magnets is measured by at least one Hall bar sensor for position sensing. ### Claim 13 (depends on 12) The camera of claim 12, wherein the at least three coils are driven by respective driving currents to provide movement relative to the magnets and wherein the driving currents depend on the position of the coils relative to the magnets. ### Claim 14 A folded camera, comprising: a) a lens that includes a lens element group G1, a lens element group G2 and a lens element group G3 along a lens optical axis; b) an image sensor; c) an optical path folding element (OPFE); and d) a voice coil motor (VCM) mechanism for focusing the lens by moving G1+G2+G3 together in a direction parallel to the lens optical axis, and for moving G1 and G3 together relative to the image sensor for zoom in the direction parallel to the lens optical axis to bring the lens to two zoom states, wherein G1 and G3 are fixedly attached to each other, wherein G2 is floating between two stops, and wherein the movement of G1 and G3 together enables attachment of G2 to G1 in one zoom state and to G3 in another zoom state. ### Claim 15 (depends on 14) The camera of claim 14, further including a first G2 stop and a second G2 stop, and wherein one of the first or second G2 stops is removable to allow movement of G1+G2+G3 to be over a large stroke of not less than 2 mm for Macro-photography. ### Claim 16 (depends on 14) The camera of claim 14, wherein the VCM mechanism includes at least three coils coupled to a plurality of respective magnets and or to magnet polarizations. ### Claim 17 (depends on 16) The camera of claim 16, wherein a position of the at least three coils relative to the magnets is measured by at least two Hall bar sensors for position sensing. ### Claim 18 (depends on 17) The camera of claim 17, wherein the at least three coils are driven by respective driving currents to provide movement of the magnets relative to the coils and wherein the driving currents depend on the position of the coils relative to the magnets.