Albada finder incorporating a range finder

Details Albada finder incorporating a range finder Albada finder incorporating a range finder

1979-03-05

1981-02-17

Evans, F. L.

Optics: measuring and testing

Range or remote distance finding

With view finder

354166, 354224, G01C 304

Patent

active

042511585

ABSTRACT:
An albada finder incorporating a range finder comprising a first negative lens component, a second thick negative lens component and a third positive lens component, said second lens component being split into two elements along a plane inclined with regard to the optical axis and a semitransparent surface being formed on said split surface.

REFERENCES:
patent: 2210191 (1940-08-01), Tronnier
patent: 3125623 (1964-03-01), Leitz et al.

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