US 11,859,961 B2
Optics for vehicle occupant monitoring systems
Björn Alexander Jubner, Spånga (SE); Lars Bertil Sparf, Vällingby (SE); Robert Sven Pettersson, Huddinge (SE); and Hans Anders Jansson, Älta (SE)
Assigned to Neonode Inc., San Jose, CA (US)
Appl. No. 16/963,836
Filed by Neonode Inc., San Jose, CA (US)
PCT Filed Jan. 23, 2019, PCT No. PCT/US2019/014667
§ 371(c)(1), (2) Date Jul. 22, 2020,
PCT Pub. No. WO2019/147612, PCT Pub. Date Aug. 1, 2019.
Claims priority of provisional application 62/621,644, filed on Jan. 25, 2018.
Prior Publication US 2021/0056341 A1, Feb. 25, 2021
Int. Cl. G01B 11/02 (2006.01); B60R 21/015 (2006.01); B60R 21/013 (2006.01); G01S 7/481 (2006.01); G01S 17/42 (2006.01); G02B 17/06 (2006.01); G02B 27/00 (2006.01); G02B 17/00 (2006.01); G06V 20/58 (2022.01); G06V 20/59 (2022.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01)
CPC G01B 11/026 (2013.01) [B60R 21/013 (2013.01); B60R 21/01538 (2014.10); B60R 21/01552 (2014.10); G01S 7/4816 (2013.01); G01S 17/42 (2013.01); G02B 17/006 (2013.01); G02B 17/0631 (2013.01); G02B 27/0093 (2013.01); G06V 20/58 (2022.01); G06V 20/593 (2022.01); G06V 20/597 (2022.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01)] 19 Claims
OG exemplary drawing
 
1. A focusing optical part, comprising a plastic body, suitable for being delivered on a tape and reel and mounted on a PCB by an automated mounting machine, the plastic body comprising:
a concave mirror comprising a center aperture input surface through which light enters said plastic body;
a convex mirror opposite the center aperture, wherein said concave mirror and the convex mirror form a reflective objective that reflects and focuses the light inside said plastic body; and
a concave exit surface surrounding said convex mirror, through which focused light exits said plastic body, wherein said exit surface is formed to minimize refraction of the focused light.