Document Type and Number:
Japanese Patent JPS6366532
Kind Code:
B2
Abstract:
The conventional single cylindrical lens of a laser alignment device is replaced with a plurality of smaller cylindrical lenses 58 which are placed in close side-by-side relationship so as to form an array which acts to spread the beam into a fan-shaped linear pattern for alignment use. The array provides essentially the same capabilities as a single lens but is not subject to the critical positioning requirements of such a conventional lens arrangement.
Inventors:
KAARU JOSEFU SHIIIBENGUREIBAA
Application Number:
JP22719882A
Publication Date:
December 21, 1988
Filing Date:
December 27, 1982
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
G03B42/02; A61B6/03; A61B6/08; G01N23/04
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