PROJECTOR AND OPTICAL PART

• US 20070132954A1
• Filed: 12/08/2006
• Published: 06/14/2007
• Est. Priority Date: 12/13/2005
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: YANAI, Hiroaki, HASHIZUME, Toshiaki
• Application Number:
  US11/608,372
• Publication Number:
  US 20070132954A1
• Time in Patent Office: Days
• US Class Current: 353/20
• CPC Class Codes: G03B 21/2073 Polarisers in the lamp house peculiar to electronic spatial light modulators H04N9/3197
• CPC Class Codes: H04N 9/3105 for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators simultaneous projection in colour photography G03B33/10; beam splitting or combining systems per se G02B27/10
• CPC Class Codes: H04N 9/3167 for polarizing the light beam polarizing optical systems per se G02B27/28

Abstract

A projector includes an optical element, and a polarizing plate that is bonded to the optical element through an adhesive layer. The polarizing plate has a polarizing layer, and a support layer that is disposed on the polarizing layer close to the optical element so as to support the polarizing layer. A cured coating layer is formed at a surface of the polarizing plate facing the optical element.

Claims

1. A projector comprising:

an optical element; and

a polarizing plate that is bonded to the optical element through an adhesive layer, the polarizing plate has a polarizing layer, and a support layer that is disposed on the polarizing layer close to the optical element so as to support the polarizing layer, and

a cured coating layer formed at a surface of the polarizing plate facing the optical element.

2. The projector according to claim 1,

the optical element is a light-transmissive substrate, a cross dichroic prism, a polarization separating prism, or a lens.

3. The projector according to claim 1, further comprising:

an additional optical element disposed at an opposite side of the polarizing plate from the optical element and bonded to the polarizing plate through an adhesive layer.

4. The projector according to claim 3,

the additional optical element is a light-transmissive substrate.

5. The projector according to claim 3, further comprising:

a cured coating layer formed at a surface of the polarizing plate facing the additional optical element,

the polarizing plate further having an additional support layer that is disposed on the polarizing layer close to the additional optical element so as to support the polarizing layer.

6. The projector according to claim 1,

the adhesive layer formed of an acryl-based adhesive, a silicon-based adhesive, or an epoxy-based adhesive.

7. The projector according to claim 1,

the cured coating layer formed of acryl-based resin, silicon-based resin, melamine-based resin, urethane-based resin, or epoxy-based resin.

8. A projector comprising:

an optical element;

a viewing angle compensating plate that is attached to the optical element through a adhesive layer; and

a cured coating layer formed at a surface of the viewing angle compensating plate facing the optical element.

9. The projector according to claim 8,

the optical element is a light-transmissive substrate, a cross dichroic prism, or a lens.

10. The projector according to claim 8,

the adhesive layer formed of an acryl-based adhesive, a silicon-based adhesive, or an epoxy-based adhesive.

11. The projector according to claim 8,

the cured coating layer formed of acryl-based resin, silicon-based resin, melamine-based resin, urethane-based resin, or epoxy-based resin.

12. A projector comprising:

an optical element;

a phase plate that is attached to the optical element through a adhesive layer; and

a cured coating layer formed at a surface of the phase plate facing the optical element.

13. The projector according to claim 12,

the optical element is a polarization separating prism in a polarization conversion element, a light-transmissive substrate, or a lens.

14. The projector according to claim 12,

the adhesive layer formed of an acryl-based adhesive, a silicon-based adhesive, or an epoxy-based adhesive.

15. The projector according to claim 12,

the cured coating layer formed of acryl-based resin, silicon-based resin, melamine-based resin, urethane-based resin, or epoxy-based resin.