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Patent Searching and Data


Title:
ILLUMINATION OPTICAL SYSTEM AND PROJECTION DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/205849
Kind Code:
A1
Abstract:
The illumination optical system according to an embodiment of the present disclosure comprises: a first light source unit for emitting first light; a second light source unit for emitting second light; an optical path combining element for combining the optical path of the first light and the optical path of the second light; and a uniform illumination optical member having a first region in which a plurality of lens elements are positioned in a vertical and lateral matrix shape and a second region in which no lens elements are formed, the first light impinging on the first region and the second light impinging on the second region.

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JP2015108780PROJECTOR
Inventors:
YONEZAWA, Gen (JP)
KUBOTA, Shogo (JP)
Application Number:
PCT/JP2021/011515
Publication Date:
October 14, 2021
Filing Date:
March 19, 2021
Export Citation:
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Assignee:
SONY GROUP CORPORATION (JP)
International Classes:
G03B21/00; G03B21/14; F21S2/00; H04N5/74; G02F1/13357
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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