IP Library › Granted Patent US 12,356,062
Granted Patent B2
US 12,356,062 · App. 18/926,347 · Granted Jul 8, 2025

Slim pop-out wide camera lenses

Inventors: Roy Rudnick (Tel Aviv, IL); Nadav Goulinski (Tel Aviv, IL); Gal Shabtay (Tel Aviv, IL); Ephraim Goldenberg (Tel Aviv, IL)
Assignee: Corephotonics Ltd.
H04N23/57G02B13/0045G02B13/009G02B15/1421G02B15/146H04N23/55
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Quick Facts
Patent No.
US 12,356,062
App. No.
18/926,347
Granted
Jul 8, 2025
Kind
B2
Abstract

Pop-out lens systems for compact digital cameras, comprising an image sensor and a lens with a field of view FOV>60 deg and having i lens elements L 1 -Li starting with L 1 from an object side toward an image side, each lens element Li having a respective focal length f i, , the lens elements divided into two lens groups G 1 and G 2 separated by a big gap (BG), the lens having a pop-out total track length TTL<20 mm in a pop-out state and a collapsed total track length c-TTL in a collapsed state, wherein BG>0.25×TTL, wherein either G 1 can move relative to G 2 and to the image sensor for focusing or G 1 and G 2 can move together relative to the image sensor for focusing, and wherein a ratio c-TTL/TTL<0.7.

Claims (26)

1. A lens system for a compact digital camera, comprising:

an image sensor having a sensor diagonal (SD); and

a lens with a field of view (FOV)>60 deg, a back focal length (BFL), an effective focal length (EFL) and N≥6 lens elements (L 1 -LN) arranged along a lens optical axis (OA) starting with L 1 from an object side toward an image side, the lens having a pop-out total track length (TTL) in the range of 8.5 mm to 12.5 mm in a pop-out state and a collapsed total track length (c-TTL) in a collapsed state, wherein the lens system is configured to switch from a pop-out state to a collapsed state by collapsing the BFL to a collapsed (c-BFL), wherein SD≥15 mm, wherein BFL>0.15×TTL, and wherein a ratio c-TTL/SD<0.65.

2. The lens system of claim 1 , wherein N=7.

3. The lens system of claim 1 , wherein N=6 or N=8.

4. The lens system of claim 1 , wherein c-TTL/SD<0.625.

5. The lens system of claim 1 , wherein SD≤17 mm.

6. The lens system of claim 1 , wherein TTL/SD≤0.65.

7. The lens system of claim 1 , wherein TTL/SD is in the range of 0.59 to 0.65.

8. The lens system of claim 1 , wherein BFL/TTL is in the range of 0.17 to 0.28.

9. The lens system of claim 1 , wherein TTL/SD is in the range of 0.59 to 0.65.

10. The lens system of claim 1 , wherein the lens system has a f number smaller than 2.

11. The lens system of claim 1 , wherein the TTL is in the range of 9.4 mm to 10.4 mm.

12. The lens system of claim 1 , wherein the lens has a lens thickness T Lens and L 1 having a lens element thickness T L1 both measured at the OA, and wherein T L1 /T Lens is in the range of 0.15 to 0.2.

13. The lens system of claim 1 , wherein the lens has a lens thickness T Lens and an air gap between L 1 and L 2 G L1-L2 both measured at the OA, and wherein G L1-L2 /T Lens <0.075.

14. The lens system of claim 13 , wherein G L1-L2 /T Lens <0.05.

15. The lens system of claim 1 , a focal length of L 1 being f1, and wherein f1/EFL<1.

16. The lens system of claim 15 , wherein f1/EFL<0.85.

17. The lens system of claim 1 , wherein a focal length of L 3 is marked f3, and wherein f3/EFL>2.

18. The lens system of claim 17 , wherein f3/EFL>3.

19. The lens system of claim 1 , wherein both L 1 and L 2 are formed meniscus with respect to the object side.

20. The lens system of claim 1 , wherein a rear surface of LN has three deflection points.

21. The lens system of claim 1 , wherein lens element LN has a lens element thickness T LN , wherein an aperture diameter of the rear surface of LN is DA 2N+1 , and wherein a ratio T LN /DA 2N+1 is in the range of 0.02 to 0.1.

22. The lens system of claim 21 , wherein the ratio T LN /DA 2N+1 is in the range of 0.035 to 0.8.

23. The lens system of claim 1 , wherein the lens system is included in a mobile device.

24. The lens system of claim 23 , wherein the mobile device is a smartphone.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 25, 2024
From: RUDNICK, ROY; GOULINSKI, NADAV; SHABTAY, GAL; GOLDENBERG, EPHRAIM
To: COREPHOTONICS LTD.
Reel/Frame 069014/0759 →
Continuity (4)
Continuation 18436137 · Feb 8, 2024
Continuation 17794972
Provisional Application 63141128 · Jan 25, 2021
Related Publication 20250047965A1 · Feb 6, 2025
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US 12,687,764