US 12,004,716 B2
Relay lens system for broadband imaging
Frederick Allen Moore, Vancouver (CA)
Assigned to Stryker Corporation, Kalamazoo, MI (US)
Filed by Stryker Corporation, Kalamazoo, MI (US)
Filed on Apr. 1, 2022, as Appl. No. 17/657,738.
Application 17/657,738 is a continuation of application No. 14/636,448, filed on Mar. 3, 2015, granted, now 11,304,592.
Claims priority of provisional application 62/084,292, filed on Nov. 25, 2014.
Claims priority of provisional application 61/947,776, filed on Mar. 4, 2014.
Prior Publication US 2022/0218179 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 1/002 (2006.01); A61B 1/055 (2006.01); G02B 13/00 (2006.01); G02B 23/24 (2006.01); G02B 27/00 (2006.01); H04N 23/00 (2023.01); H04N 23/50 (2023.01)
CPC A61B 1/002 (2013.01) [A61B 1/055 (2013.01); G02B 13/0095 (2013.01); G02B 23/2446 (2013.01); G02B 27/0062 (2013.01); H04N 23/00 (2023.01); H04N 23/555 (2023.01)] 14 Claims
OG exemplary drawing
 
1. An optical system, comprising:
a first relay rod of a first material, the first relay rod having no optical power;
a second relay rod of a second material, different from the first material, wherein the first and second materials are selected to reduce the wavefront error across the field of view of the optical system as compared with using a same material for both the first and second relay rods, the second relay rod having no optical power, wherein the first and second relay rods are geometrically symmetric to one another relative to a pupil or conjugate pupil of the optical system, the first and second relay rods having a same length; and
a lens between the first and second relay rods.