Geometrical instruments – Straight-line light ray type – Multisight line
Patent
1988-01-27
1989-02-21
Haroian, Harry N.
Geometrical instruments
Straight-line light ray type
Multisight line
F41G 106, F41G 116
Patent
active
048053139
ABSTRACT:
The contrast between a target and the target markers or line divisions on a graticule disk of a sight, especially for a hand-held weapon, is enhanced by a device which illuminates the graticule disk with refected liight. The device has an attachment member which is rapidly mountable to and removable from the sight housing. The attachment member carries a frame which holds glass bodies filled with gaseous tritium and coated on the reflecting surfaces with a luminous lacquer or paint. The light entry and exit sides are not coated. The attachment member holding the frame permits shifting the frame between a first effective position in which light collected by the tritium filled glass bodies is transmitted onto the graticule disk, and a second ineffective position in which light is not transmitted to the graticule disk.
REFERENCES:
patent: 3641676 (1972-02-01), Knutsen et al.
patent: 4136963 (1979-01-01), Budden
patent: 4658139 (1987-04-01), Brennan
Schmid Werner
Stocker Arthur
Fasse W. G.
Haroian Harry N.
Kane, Jr. D. H.
Messerschmitt-Boelkow-Blohm GmbH
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