LIGHT SOURCE UNIT AND VIDEO DISPLAY APPARATUS

WIPO Patent Application WO/2023/238460

A1

This light source unit comprises: a first display device; a second display device; a first polarizing plate which causes light emitted from the first display device to be first polarized light having a first polarization direction; a second polarizing plate which causes light emitted from the second display device to be second polarized light having a second polarization direction; a reflection-type polarizing plate which allows the first polarized light to transmit therethrough and reflects the second polarized light; a first reflection member; a first wave plate disposed between the reflection-type polarizing plate and the first reflection member; a second reflection member; and a second wave plate disposed between the reflection-type polarizing plate and the second reflection member. A first optical path length from the first display device to the first reflection member for the light emitted from the first display device is longer than a second optical path length from the second display device to the second reflection member for the light emitted from the second display device, and the curvature of a first concave surface is greater than the curvature of a second concave surface.

WO/2017/185635	TELESCOPIC STRUCTURE AND VIRTUAL REALITY HELMET
WO/1997/029472	A VISUAL DISPLAY SYSTEM HAVING A LARGE FIELD OF VIEW
WO/2020/218350	OPTICAL COMPONENT

KITAHARA WATARU (JP)
ARUGA TAKANORI (JP)
AKIMOTO HAJIME (JP)

PCT/JP2023/007848

December 14, 2023

March 02, 2023

Click for automatic bibliography generation  

NICHIA CORP (JP)

G02B27/01; G02B17/02

WO2017170702A1	2017-10-05
WO2019008684A1	2019-01-10
WO2017138242A1	2017-08-17

US11287649B2	2022-03-29
JP2004527801A	2004-09-09
JP2020074005A	2020-05-14
JP2013183042A	2013-09-12
JPH06347708A	1994-12-22

HYUGAJI, Masahiko et al. (JP)

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