Title:
LASER PROTECTING SPCTRACLES
Document Type and Number:
Japanese Patent JPS5427451
Kind Code:
A
Abstract:
PURPOSE: To protect eyes sufficiently from laser light by keeping the transmission quantity of laser beams within the transmission quantity allowable for the eyes.
Inventors:
NAKATSUI HISASHI
Application Number:
JP9269877A
Publication Date:
March 01, 1979
Filing Date:
August 02, 1977
Export Citation:
Assignee:
CANON KK
International Classes:
G02C7/10; G02B5/20; G02B5/22; G05D25/00; (IPC1-7): G02B5/20; G02C7/10; G05D25/00