Research/Patents/US 4730912
US 4730912

DISTORTIONLESS SIGHT UTILIZING HOLOGRAPHIC COMPONENTS

Assignee

TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES T.R.T.

Filed

Nov 16, 1984

Granted

Mar 15, 1988

Location

SCEAUX FR

Abstract

A sight comprises an image carrier (D) presenting an exit aperture (P3) and forming, from an observed image (I), an intermediate image (I') at the focus (F) of an ocular comprised of a spherical mirror (M) with the same optical axis (XX') as that of the image carrier (D), with a holographic beam deflection element (H) being placed at the focus (F) of the spherical mirror (M). In accordance with the invention, the intermediate image (I') is formed on the focal surface (S) of the ocular, and the holographic beam deflection element (H) is disposed on a support resting on the focal surface (S) and, in association with the spherical mirror (M), conjugates stigmatically the exit aperture (P3) of the image carrier (D) with the exit aperture (P1) of the sight.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Dec 16, 1985

Rescinded

Jan 12, 1987

Duration

1 year

Inventor

  • 1FERNAND LOY

Technology Domains

Click a domain to browse all patents in this category.

Back to patent indexSource: USPTO 35 USC §181 secrecy order records