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Title:
CIRCULAR LIGHT SOURCE DEVICE, AND MICROSCOPE
Document Type and Number:
Japanese Patent JP2010250182
Kind Code:
A
Abstract:

To provide a circular light source device or the like achieving miniaturization and cost.

The circular light source device includes: an annular light condensing lens 8; and a plurality of linear light source devices 100 annularly arranged along the incident surface of the light condensing lens 8, for emitting linear illumination light to the incident surface of the light condensing lens 8.


Inventors:
NAKAJIMA YASUHARU
Application Number:
JP2009101274A
Publication Date:
November 04, 2010
Filing Date:
April 17, 2009
Export Citation:
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Assignee:
NIKON CORP
International Classes:
G02B21/06; F21V5/04; G02B3/00; G02B5/10; G02B27/00; F21Y101/02
Domestic Patent References:
JPS6340201A1988-02-20
JPS58103701A1983-06-20
JP2007147743A2007-06-14
JP2009502377A2009-01-29
JP3142994U2008-07-03
Attorney, Agent or Firm:
Yoshio Inoue
Kenichi Aihara



 
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