US 12,228,707 B2
Subminiature optical system and portable device including the same
Yong Joo Jo, Suwon-si (KR); and Young Suk Kang, Suwon-si (KR)
Assigned to Samsung Electro-Mechanics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electro-Mechanics Co., Ltd., Suwon-si (KR)
Filed on Sep. 15, 2023, as Appl. No. 18/468,085.
Application 18/468,085 is a continuation of application No. 17/380,382, filed on Jul. 20, 2021, granted, now 11,796,773.
Application 17/380,382 is a continuation of application No. 16/590,932, filed on Oct. 2, 2019, granted, now 11,099,362, issued on Aug. 24, 2021.
Application 16/590,932 is a continuation of application No. 15/381,218, filed on Dec. 16, 2016, granted, now 10,473,895, issued on Nov. 12, 2019.
Application 15/381,218 is a continuation of application No. 14/927,682, filed on Oct. 30, 2015, granted, now 9,846,296, issued on Dec. 19, 2017.
Application 14/927,682 is a continuation of application No. 13/862,102, filed on Apr. 12, 2013, granted, now 9,405,099, issued on Aug. 2, 2016.
Claims priority of application No. 10-2013-0007047 (KR), filed on Jan. 22, 2013.
Prior Publication US 2024/0004166 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 13/00 (2006.01); G02B 9/60 (2006.01); G02B 1/04 (2006.01); H04N 13/282 (2018.01)
CPC G02B 13/0045 (2013.01) [G02B 9/60 (2013.01); G02B 1/041 (2013.01); H04N 13/282 (2018.05)] 10 Claims
OG exemplary drawing
 
1. An optical system, comprising:
a first lens having positive refractive power and a convex object-side surface;
a second lens having negative refractive power and a concave image-side surface;
a third lens having positive refractive power, a convex object-side surface and a concave image-side surface;
a fourth lens having refractive power and a concave object-side surface; and
a fifth lens having refractive power,
wherein the first to fifth lenses are sequentially disposed from an object side toward an imaging plane,
wherein the optical system has a total of five lenses,
wherein the optical system satisfies 0.7<TTL/F<1.0, where TTL is a distance from the object-side surface of the first lens to an imaging surface, and F is an overall focal length of the optical system,
wherein the optical system satisfies 0.16<rdy s1/F<2, where rdy s1 is a radius of curvature of the object-side surface of the first lens,
wherein the optical system satisfies 20°<FOV<35°, where FOV is a view angle of the optical system, and
wherein the fifth lens has at least one inflection point formed in a location thereof other than a location corresponding to an optical axis.