Telescopic day and night sight

Details Telescopic day and night sight Telescopic day and night sight

1994-07-27

1996-03-05

Dzierzynski, Paul M.

Optical: systems and elements

Having significant infrared or ultraviolet property

Including alternative optical path or optical element

359350, 359351, 348164, G02B 508, H04N 533

Patent

active

054972663

ABSTRACT:
A day
ight sight includes a visible-light first optical path and an invisible-light second optical path which are everywhere optically coaxial. The invisible-light second optical path leads to a detector or to an image intensifier tube for providing either an electrical signal or a visible image, respectively, in response to the invisible-light image. A third optical path for the visible image from the image intensifier tube is also everywhere optically coaxial with the first and second optical paths. A visible image produced from the electrical signal is introduced into the first optical path to thereafter be coaxial therewith. Consequently, a uniquely compact arrangement of the elements for the day
ight sight is achieved.

REFERENCES:
patent: 3598467 (1971-08-01), Pearson
patent: 4199220 (1980-04-01), Casagrande
patent: 4751571 (1988-06-01), Lillquist
patent: 5035472 (1991-07-01), Hansen
patent: 5084780 (1992-01-01), Phillips
patent: 5161051 (1992-11-01), Whitney et al.
patent: 5365354 (1994-11-01), Jannson et al.

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