Title:
LIGHT SOURCE DEVICE AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2022/038651
Kind Code:
A1
Abstract:
Provided is a light source device with which dustproof performance can be maintained and the distance between a lens and a phosphor wheel can be adjusted with high accuracy. The light source device has a phosphor wheel (1) that receives excitation light and emits fluorescence, a lens element (2) which focuses the excitation light on the phosphor wheel and on which the fluorescence emitted by the phosphor wheel is incident, a wheel holder (3) that holds the phosphor wheel, a lens holder (4) that is fixed to the wheel holder and that holds the lens element, and an accommodating case (5) that accommodates the phosphor wheel and the lens element and that has an opening. The wheel holder is fixed to the accommodating case using a dustproofing elastic body (6) such that the opening is closed. A shim (7) for adjusting the distance between the lens element and the phosphor wheel can be inserted into the lens holder.
Inventors:
KAWASE RYOSUKE (JP)
Application Number:
PCT/JP2020/030958
Publication Date:
February 24, 2022
Filing Date:
August 17, 2020
Export Citation:
Assignee:
SHARP NEC DISPLAY SOLUTIONS LTD (JP)
International Classes:
G03B21/00; F21S2/00; F21V9/32; F21V13/02; G03B21/14
Domestic Patent References:
| WO2019069563A1 | 2019-04-11 | |||
| WO2017175467A1 | 2017-10-12 |
Foreign References:
| JP2016066061A | 2016-04-28 | |||
| JP2014066972A | 2014-04-17 | |||
| JP2020030314A | 2020-02-27 | |||
| JP2012002979A | 2012-01-05 | |||
| JP2008225407A | 2008-09-25 | |||
| JP2019061018A | 2019-04-18 | |||
| CN111025833A | 2020-04-17 |
Attorney, Agent or Firm:
MIYAZAKI Teruo et al. (JP)
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