G - Physics
02
B
88/122, 345/62,
G02B 6/42 (2006.01) G02B 6/32 (2006.01) H01S 5/022 (2006.01)
Patent
CA 1312667
ABSTRACT A lens assembly for focussing the light output of a device 2 on to a target 4, when there is relative movement between the target and device. The assembly comprises a pair of lenses with the device at the focus of the first and the target in the focal range of the second lens.
579594
Constantine Philip Denis
Marshall Ian William
British Telecommunications Public Limited Company
Pascal & Associates
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