US 12,169,266 B2
Miniature telephoto lens assembly
Michael Dror, Tel Aviv (IL); Ephraim Goldenberg, Tel Aviv (IL); and Gal Shabtay, Tel Aviv (IL)
Assigned to Corephotonics Ltd., Tel Aviv (IL)
Filed by Corephotonics Ltd., Tel Aviv (IL)
Filed on Mar. 14, 2024, as Appl. No. 18/604,959.
Application 18/604,959 is a continuation of application No. 18/504,395, filed on Nov. 8, 2023, granted, now 11,953,659.
Application 18/504,395 is a continuation of application No. 18/054,905, filed on Nov. 13, 2022, granted, now 11,835,694, issued on Dec. 5, 2023.
Application 18/054,905 is a continuation of application No. 17/499,878, filed on Oct. 13, 2021.
Application 17/499,878 is a continuation of application No. 16/872,934, filed on May 12, 2020, abandoned.
Application 16/872,934 is a continuation of application No. 16/829,804, filed on Mar. 25, 2020, granted, now 11,125,980, issued on Sep. 21, 2021.
Application 16/829,804 is a continuation of application No. 16/665,977, filed on Oct. 28, 2019, granted, now 10,795,134, issued on Oct. 6, 2020.
Application 16/665,977 is a continuation of application No. 16/296,272, filed on Mar. 8, 2019, granted, now 10,488,630, issued on Nov. 26, 2019.
Application 16/296,272 is a continuation of application No. 15/976,422, filed on May 10, 2018, granted, now 10,317,647, issued on Jun. 11, 2019.
Application 16/296,272 is a continuation of application No. 15/976,391, filed on May 10, 2018, granted, now 10,330,897, issued on Jun. 25, 2019.
Application 15/976,422 is a continuation of application No. 15/817,235, filed on Nov. 19, 2017, granted, now 10,324,277, issued on Jun. 18, 2019.
Application 15/976,422 is a continuation of application No. 15/817,235, filed on Nov. 19, 2017, granted, now 10,324,277, issued on Jun. 18, 2019.
Application 15/817,235 is a continuation of application No. 15/418,925, filed on Jan. 30, 2017, granted, now 9,857,568, issued on Jan. 2, 2018.
Application 15/418,925 is a continuation in part of application No. 15/170,472, filed on Jun. 1, 2016, granted, now 9,568,712, issued on Feb. 14, 2017.
Application 15/170,472 is a continuation of application No. 14/932,319, filed on Nov. 4, 2015, granted, now 9,402,032, issued on Jul. 26, 2016.
Application 14/932,319 is a continuation of application No. 14/367,924, abandoned, previously published as PCT/IB2014/062465, filed on Jun. 20, 2014.
Claims priority of provisional application 61/842,987, filed on Jul. 4, 2013.
Prior Publication US 2024/0219691 A1, Jul. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 13/00 (2006.01); G02B 1/04 (2006.01); G02B 9/60 (2006.01); G02B 13/02 (2006.01); G02B 27/00 (2006.01); G02B 27/64 (2006.01); G02B 5/00 (2006.01); G02B 9/00 (2006.01); H04N 101/00 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 1/041 (2013.01); G02B 9/60 (2013.01); G02B 13/02 (2013.01); G02B 27/0025 (2013.01); G02B 27/646 (2013.01); G02B 5/005 (2013.01); G02B 9/00 (2013.01); G02B 13/002 (2013.01); H04N 2101/00 (2013.01); H04N 2201/00 (2013.01); Y10T 29/4913 (2015.01)] 25 Claims
OG exemplary drawing
 
1. A lens system, comprising:
a lens assembly that includes a plurality of refractive lens elements arranged along an optical axis and including, in order from an object side to an image side, a first group comprising a first lens element having a positive refractive power and a second lens element, and a second group comprising a first lens element and a second lens element;
a stop positioned before the first lens element of the first group; and
a window positioned between the plurality of refractive lens elements and an image plane,
wherein a smallest gap between lens elements is dMIN,
wherein a largest gap between lens elements dMAX is a gap between the first and second groups,
wherein dMAX is larger than 2.25 times any other gap between lens elements,
wherein at least one surface of at least one of the plurality of refractive lens elements is aspheric,
wherein the lens assembly has an effective focal length EFL and a total track length TTL, a ratio TTL/EFL smaller than 0.9, and a f number f# smaller than 2.9,
wherein a center thickness of each lens element is equal to or larger than 0.2 mm,
wherein a focal length f1 of the first lens element of the first lens group is smaller than TTL/2,
wherein a ratio L11/L1e between a largest optical axis thickness L11 and a circumferential edge thickness L1e of the first lens element of the first group is smaller than 3.5, and
wherein the lens system is embedded in a mobile device.