Title:
OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/181539
Kind Code:
A1
Abstract:
The present invention solves the problem of a complicated configuration which results when a movement member for moving optical components is required in an optical device with which spectral noise is reduced by moving the optical components. This optical device is equipped with a diffraction part (42) that diffracts and then emits linearly polarized laser light (L00), and a direction changing part (46) that changes the direction of at least a portion of the +1 order light (L11) and at least a portion of the -1 order light (L12) emitted from the diffraction part, so as to be in a parallel direction, and then emits this light. Furthermore, the optical device is equipped with: an incident-side modulation part that changes the polarization direction of the linearly polarized laser light to multiple directions; a first birefringence part that divides the light (modulated by the incident-side modulation part) in a first direction, thereby emitting first light and second light; an emission-side modulation part that changes the polarization direction of the first light and the second light, emitted from the first birefringence part, to multiple directions; and a second birefringence part that divides the light (modulated by the emission-side modulation part) in a second direction different from the first direction, and emits this light as advancing parallel light.
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Inventors:
KOMATSU TAKUYA (JP)
SATO YOSHITAKA (JP)
HIRAI TATSUYA (JP)
SATO YOSHITAKA (JP)
HIRAI TATSUYA (JP)
Application Number:
PCT/JP2014/002436
Publication Date:
November 13, 2014
Filing Date:
May 08, 2014
Export Citation:
Assignee:
COLORLINK JAPAN LTD (JP)
International Classes:
G02B27/48; G02B5/18; G02B5/30
Domestic Patent References:
| WO2013015066A1 | 2013-01-31 | |||
| WO2006137326A1 | 2006-12-28 |
Foreign References:
| JPH04130289A | 1992-05-01 | |||
| JP2003233094A | 2003-08-22 | |||
| JPS6433521A | 1989-02-03 | |||
| US20080049284A1 | 2008-02-28 | |||
| JPH01271930A | 1989-10-31 | |||
| JP2010156841A | 2010-07-15 | |||
| JP2007178281A | 2007-07-12 |
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
Ryuka international patent business corporation (JP)
Ryuka international patent business corporation (JP)
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