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Patent Searching and Data


Title:
LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2011059174
Kind Code:
A
Abstract:

To fix a length of a scanning range and a scanning speed in a lighting device.

The lighting device, which illuminates an object area by causing light to scan the object area, includes: a light source (1) generating light; an optical system (17) which changeably adjusts an optical path of light from the light source; an electro-optical elements (9a and 9b) which have a refractive index distribution induced by application of a voltage and deflect the light from the optical system in accordance with the voltage in order to scan the object area; and a control part (15) which adjusts the voltage applied to the electro-optical elements in accordance with at least an incidence angle of light on the electro-optical elements.


Inventors:
SHIMAMOTO TOKUYOSHI
IGA YASUNOBU
INNAN TAKEHARU
Application Number:
JP2009205806A
Publication Date:
March 24, 2011
Filing Date:
September 07, 2009
Export Citation:
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Assignee:
OLYMPUS CORP
International Classes:
G02F1/29; F21S2/00; G02B19/00; G02B21/08; G02B26/08; G02B27/00; G02F1/03
Attorney, Agent or Firm:
Masaki Goto
Masahiro Fujii
Masaaki Iida