Title:
投写光学装置、プロジェクター、および投写光学装置の制御方法
Document Type and Number:
Japanese Patent JP7468133
Kind Code:
B2
Abstract:
A projection optical apparatus includes a projection system projecting light and including a resin lens, a degradation suppressor configured to suppress degradation of the resin lens, and a projection controller configured to control the degradation suppressor.
Inventors:
Kaho Watanabe
Application Number:
JP2020086630A
Publication Date:
April 16, 2024
Filing Date:
May 18, 2020
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G03B21/14; G02B7/02; G02B7/14; H04N5/74
Domestic Patent References:
| JP2002207168A | ||||
| JP2015152722A | ||||
| JP2011209394A | ||||
| JP2018066958A | ||||
| JP2018045121A |
Foreign References:
| US20210063852 | ||||
| CN107203086B |
Attorney, Agent or Firm:
Yasushi Matsunuma
Onami Kazunori
Hiroyuki Matsumoto
Akio Sato
Onami Kazunori
Hiroyuki Matsumoto
Akio Sato