Title:
光学ホイール、光源装置及び投影装置
Document Type and Number:
Japanese Patent JP7240590
Kind Code:
B2
Abstract:
An optical wheel according to the present invention includes a luminescent material light emitting area on which light in a first wavelength range is incident from one side to thereby emit luminescent light excited by the light in the first wavelength range from another side, and a controlling and diffusing optical area including a controlling section on which the light in the first wavelength range is incident from the one side and configured to cause a diffusing characteristic of the light in the first wavelength range to differ between in a radial direction and in a circumferential direction.
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Inventors:
Hidemasa Kurosaki
Application Number:
JP2018187117A
Publication Date:
March 16, 2023
Filing Date:
October 02, 2018
Export Citation:
Assignee:
CASIO COMPUTER CO.,LTD.
International Classes:
G03B21/14; F21S2/00; F21V5/00; F21V5/04; F21V7/28; F21V9/35; F21V9/38; F21V9/40; H04N5/74
Domestic Patent References:
| JP2017003681A | ||||
| JP2013011652A | ||||
| JP2011065771A | ||||
| JP2017116681A | ||||
| JP2014174264A | ||||
| JP2017156619A |
Foreign References:
| US9983471 | ||||
| US20180299662 |
Attorney, Agent or Firm:
Patent Attorney Corporation Cosmo International Patent Office
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