Optical magnifying device

Details Optical magnifying device Optical magnifying device

1976-11-29

1978-12-05

Evans, F. L.

350245, G02B 2702

Patent

active

041283066

ABSTRACT:
The present invention concerns an optical magnifying device consisting of a block having at least two holes at right angles in the same plane, these two holes which pass right through the block each having close to one end of the hole, a magnifying lens whose focal point is approximately at the level of the other end of the hole.

REFERENCES:
patent: 3551022 (1970-12-01), Yamasaka et al.

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