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1. (WO1997017625) OPTICAL APERTURE DEVICE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017625 International Application No.: PCT/JP1996/003306
Publication Date: 15.05.1997 International Filing Date: 11.11.1996
Chapter 2 Demand Filed: 11.11.1996
IPC:
G02B 5/00 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
Applicants:
KOMATSU LTD. [JP/JP]; 3-6, Akasaka 2-chome Minato-ku Tokyo 107, JP (AllExceptUS)
MATSUNO, Kiyonori [JP/JP]; JP (UsOnly)
WAKAI, Hideyuki [JP/JP]; JP (UsOnly)
Inventors:
MATSUNO, Kiyonori; JP
WAKAI, Hideyuki; JP
Agent:
KIMURA, Takahisa; Sendai Building, 6F 8-11, Minato 1-chome Chuo-ku Tokyo 104, JP
Priority Data:
7/29310010.11.1995JP
Title (EN) OPTICAL APERTURE DEVICE
(FR) DISPOSITIF A OUVERTURE OPTIQUE
Abstract:
(EN) An optical aperture device having a pinhole for providing a point light source, wherein the pinhole is formed in a plurality of layers spaced with gaps. This simple structure provides a unifocal point light source having a small spot diameter.
(FR) L'invention concerne un dispositif à ouverture optique ayant un trou minuscule pour constituer une source lumineuse ponctuelle. Ce trou est formé dans une pluralité de couches espacées entre elles. Cs système simple permet d'avoir une source lumineuse monofocale de petit diamètre.
Designated States: DE, US
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)