US 12,130,440 B2
Ocular optical system, medical viewer, and medical viewer system
Satoshi Nagae, Tokyo (JP); Takeshi Hatakeyama, Chiba (JP); and Ichiro Tsujimura, Tokyo (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Filed by Sony Group Corporation, Tokyo (JP)
Filed on Jul. 10, 2023, as Appl. No. 18/349,180.
Application 18/349,180 is a continuation of application No. 16/622,963, granted, now 11,733,517, previously published as PCT/JP2019/010450, filed on Mar. 14, 2019.
Claims priority of application No. 2018-081967 (JP), filed on Apr. 23, 2018.
Prior Publication US 2023/0350210 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 27/01 (2006.01); G02B 27/02 (2006.01); G02B 30/25 (2020.01)
CPC G02B 27/0172 (2013.01) [G02B 27/022 (2013.01); G02B 30/25 (2020.01); G02B 2027/0178 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medical viewer system, comprising:
a camera configured to capture a surgical image on a surgical site,
an operation device configured to control an imaging position or an imaging magnification of the camera by user operation, and
a medical viewer configured to present a view of the surgical image from the camera to an observer, the medical viewer including, on an optical path viewed from an observer side, at least:
a first polarization member;
an ocular lens before or after the first polarization member;
a mirror;
a second polarization member; and
an image display device displaying the surgical image in this order,
wherein
a polarized state in the first polarization member and a polarized state in the second polarization member are orthogonal to each other,
the mirror changes the polarized state of light incident thereon to a state orthogonal thereto, and
a direct light beam from the image display device not reflected on the mirror before being incident on the ocular lens or the first polarization member travels an optical path different from that of a light beam reflected on the mirror before being incident on the ocular lens or the first polarization member, wherein the direct light beam and the light beam reflected on the mirror are both incident on the second polarization member.