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Title:
PROJECTION LENS AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/065056
Kind Code:
A1
Abstract:
A projection lens comprises: a lens formed of resin; a first holding frame that holds the lens; and a second holding frame that is not in contact with the lens and that holds the first holding frame, wherein the first holding frame has a greater thermal expansion coefficient than the second holding frame.

Inventors:
MASUZAWA TOMONARI (JP)
Application Number:
PCT/JP2020/016199
Publication Date:
April 08, 2021
Filing Date:
April 10, 2020
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B7/02; G03B21/00; G03B21/14
Foreign References:
JP2011145323A2011-07-28
JP2011157821A2011-08-18
JP2012118404A2012-06-21
JPH07272645A1995-10-20
JPS612112A1986-01-08
JP2019002969A2019-01-10
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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