Document Type and Number:
Japanese Patent JPS6430956
Kind Code:
U
Application Number:
JP12523287U
Publication Date:
February 27, 1989
Filing Date:
August 19, 1987
Export Citation:
International Classes:
G02B3/00; G02B27/18; G03B27/50; H04N1/028; H04N1/04; (IPC1-7): H04N1/028; G02B3/00; G02B27/18; G03B27/50; H04N1/04
Domestic Patent References:
| JP62170947B | ||||
| JPS5934760A | 1984-02-25 |