Dioptric sight

Details Dioptric sight Dioptric sight

1991-08-15

1993-04-06

Arnold, Bruce Y.

Optical: systems and elements

Compound lens system

Telescope

359819, 359892, 33251, G02B 2300, G02B 702, F41G 102

Patent

active

052008525

ABSTRACT:
In a dioptric sight having a tubular body with an eyepiece including an adjustable iris diaphragm mounted on one end thereof and a plastic sleeve mounted on the eyepiece, the tubular body and the sleeve each has at least one transverse slot formed therein for receiving filter discs of a diameter corresponding to the diameter of the tubular body, the filter discs being lockable in the slots but being easily removable for cleaning and exchange.

REFERENCES:
patent: 4043646 (1977-08-01), Heine et al.
patent: 4392723 (1983-07-01), Gehmann
patent: 4536057 (1985-08-01), Sumi et al.
patent: 4684231 (1987-08-01), Athy
patent: 4856879 (1989-08-01), Gehmann

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