Ammunition and explosives – Igniting devices and systems – Ignition or detonation circuit
Patent
1990-05-03
1991-05-28
Jordan, Charles T.
Ammunition and explosives
Igniting devices and systems
Ignition or detonation circuit
F42C 1302
Patent
active
050184474
ABSTRACT:
An optically transparent cylinder having a hemispherical cavity at one end hereof and containing at least one light source and one light detector inside the hemispherical cavity utilizes the prismatic effect of the cylinder to locate an object in space. The light source and detector are located on a disk whose insertion depth into the cavity and tilt angle inside the cavity can be varied to control the sharpness, width and direction of the conical beam output from the cylinder, the beam searching the space for the location of the desired object.
REFERENCES:
patent: 3226557 (1965-12-01), Goodman
patent: 3455243 (1969-07-01), Martin
patent: 3786757 (1974-01-01), Godlstein et al.
patent: 4776274 (1988-10-01), Kriz et al.
Lovelace Donald E.
Miller, Jr. Walter E.
Mitchell Robert R.
Bush Freddie M.
Chang Hay Kyung
Jordan Charles T.
The United States of America as represented by the Secretary of
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