公开(公告)号：US11796900B2

公开(公告)日：2023-10-24

申请号：US17413640

申请日：2019-12-05

Applicant: SONY GROUP CORPORATION

Inventor： Masa Tanaka

IPC: G03B21/20 ,  G02B27/14 ,  G02B27/28 ,  H04N9/31

CPC classification number: G03B21/2013 ,  G02B27/141 ,  G02B27/283 ,  G03B21/204 ,  H04N9/3161 ,  H04N9/3164

Abstract: A light source device and an image display device that combine light with high efficiency are provided. The light source device includes a first light source unit, a first illumination optical system that emits a first illumination light, a second light source unit, a second illumination optical system that emits a second illumination light, and a combiner on which the first illumination light and the second illumination light are incident. The combiner filters the incident light on the basis of a wavelength range and an incident angle, and angles at which the first illumination light and the second illumination light are incident on the combiner are each adjusted in such a way that the wavelength range of the first illumination light emitted from the combiner and the wavelength range of the second illumination light emitted from the combiner approach or overlap with each other.

公开(公告)号：US11656540B2

公开(公告)日：2023-05-23

申请号：US17738551

申请日：2022-05-06

Applicant: SONY GROUP CORPORATION

Inventor： Masa Tanaka ,  Ryo Miyao

IPC: G03B21/20

CPC classification number: G03B21/2013 ,  G03B21/208

Abstract: An illumination device of the present disclosure includes: a first light source unit that emits first light of a first wavelength band; a first spatial light modulator where the first light from the first light source unit enters; a second light source unit that emits second light of a second wavelength band; an integrator optical system including a first fly-eye lens where the second light from the second light source unit enters and generating illumination light for an illumination target on a basis of the first light having been modulated by the first spatial light modulator and the second light from the second light source unit; and a multiplexing optical system that multiplexes the second light having entered the first fly-eye lens and the first light having been modulated by the first spatial light modulator, in an optical path between the first fly-eye lens and the illumination target.