US 12,392,942 B2
Display unit
Pierre Mermillod, Créteil (FR); Thomas Avisse, Créteil (FR); and Pierre-Alain Tremblin, Créteil (FR)
Assigned to VALEO COMFORT AND DRIVING ASSISTANCE, Créteil (FR)
Appl. No. 17/924,251
Filed by VALEO COMFORT AND DRIVING ASSISTANCE, Créteil (FR)
PCT Filed Apr. 28, 2021, PCT No. PCT/EP2021/061191
§ 371(c)(1), (2) Date Nov. 9, 2022,
PCT Pub. No. WO2021/228557, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 2004693 (FR), filed on May 13, 2020.
Prior Publication US 2023/0182569 A1, Jun. 15, 2023
Int. Cl. G02B 5/20 (2006.01); B60K 35/00 (2006.01); B60K 35/10 (2024.01); G02B 27/42 (2006.01); B60K 35/22 (2024.01)
CPC B60K 35/00 (2013.01) [G02B 5/20 (2013.01); G02B 27/4205 (2013.01); B60K 35/10 (2024.01); B60K 35/22 (2024.01); B60K 2360/128 (2024.01); B60K 2360/25 (2024.01); B60K 2360/332 (2024.01); B60K 2360/333 (2024.01); B60K 2360/336 (2024.01)] 13 Claims
OG exemplary drawing
 
1. A display device comprising:
a light source configured to generate a source light beam extending over a predetermined wavelength range;
a diffractive optical element, the operating range of which is adapted to said wavelength range and which is arranged to receive said source light beam and to transmit an image light beam; and
a dichroic filter placed in the path of said image light beam and the passband of which at least partially covers said wavelength range so as to at least partially transmit said image light beam.