Title:
OPTICAL SHEET ROTATING WHEEL, RELEVANT LIGHT-EMITTING DEVICE AND PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/018231
Kind Code:
A1
Abstract:
An optical sheet rotating wheel (1), comprising: a drive device (13) comprising a rotating shaft (131) and a fixed surface (134) which is vertically fixed to the rotating shaft; an adapter piece (12) comprising a first surface (12a) and a second surface (12b) which are opposite, wherein the first surface is adhesively fixed to the fixed surface through a first adhesive; and an optical sheet (11) which is adhesively fixed to the second surface of the adapter piece through the first adhesive, the outer edge of the optical sheet exceeding the fixed surface and the adapter piece. The thermal expansion coefficient of the optical sheet is less than the thermal expansion coefficient of the fixed surface, and the thermal expansion coefficient of the adapter piece matches the thermal expansion coefficient of the optical sheet. The hardness of the adapter piece is greater than a preset value, so that when the fixed surface generates deformation at the predetermined temperature, the stress applied to the adapter piece through the first adhesive is smaller than the critical value of the stress that would crush the adapter piece.
Inventors:
YANG JIAYI (CN)
HU FEI (CN)
HU FEI (CN)
Application Number:
PCT/CN2014/079427
Publication Date:
February 12, 2015
Filing Date:
June 07, 2014
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
F21V14/00; G02B7/00; G03B21/20
Foreign References:
| CN2791698Y | 2006-06-28 | |||
| CN1779550A | 2006-05-31 | |||
| CN201087850Y | 2008-07-16 | |||
| US6618214B2 | 2003-09-09 |
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