Title:
LIGHT PATH SWITCHOVER DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/009191
Kind Code:
A1
Abstract:
[PROBLEMS] A light path switchover device where unwanted reduction in a light transmission factor and loss in light can be more effectively prevented than a case in which a prism is used to switch over between light paths. [MEANS FOR SOLVING PROBLEMS] A light path switching device (10) uses light reflection at a pair of mirrors (71, 72) to switch a light path for a light beam (11). The mirrors (71, 72) are moved on to the light path by a drive actuator (76) with their reflection surfaces (71r, 72r) held parallel to each other by a mirror fixation member, so that high accuracy is not required for the movement.
Inventors:
TOGAWA MASAYUKI (JP)
KOBAYASHI MORIO (JP)
KOBAYASHI MORIO (JP)
Application Number:
PCT/JP2005/013354
Publication Date:
January 26, 2006
Filing Date:
July 21, 2005
Export Citation:
Assignee:
NABTESCO CORP (JP)
TOGAWA MASAYUKI (JP)
KOBAYASHI MORIO (JP)
TOGAWA MASAYUKI (JP)
KOBAYASHI MORIO (JP)
International Classes:
G02B26/08; (IPC1-7): G02B26/08
Foreign References:
| JPS5525023A | 1980-02-22 | |||
| JPS6457225A | 1989-03-03 |
Attorney, Agent or Firm:
NABTESCO CORPORATION (9-18 Kaigan 1-chom, Minato-ku Tokyo, JP)
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