Searching and measuring endoscope

Details Searching and measuring endoscope Searching and measuring endoscope

1984-06-27

1986-05-13

McGraw, Vincent P.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

356237, 350 9626, 128634, G02B 2326, A61B 500

Patent

active

045882940

ABSTRACT:
A searching and measuring endoscope employing two image-transmitting systems in a common housing. One system is fitted with a wide angle, fixed focus objective lens with large depth of field for searching and the other system is fitted with a narrow angle, fixed focus objective lens having a small depth of field and a predetermined working distance and magnification for measuring.

REFERENCES:
patent: 3520587 (1970-07-01), Tasaki
patent: 3561432 (1971-02-01), Yamaki
patent: 3877779 (1975-04-01), Pierse
patent: 4267828 (1981-05-01), Matsuo

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