Peripheral vision horizon device

Details Peripheral vision horizon device Peripheral vision horizon device

G - Physics

02

B

343/118, 88/51

G02B 27/18 (2006.01) B63B 39/00 (2006.01) B64D 45/00 (2006.01) G01C 23/00 (2006.01)

Patent

CA 1067322

ABSTRACT OF THE DISCLOSURE The invention provides a peripheral vision horizon device for use in projecting a light bar on the interior of an aircraft cockpit or the like to indicate pitch and roll, the light bar being located with reference to a datum in the cockpit. The device includes a housing having a first part attachable to the cockpit and a second part rotatably coupled to the first part for movement about a first axis which on assembly in the aircraft extends transversely of the cockpit. A lens carrier is rotatably coupled to the second part for rotation about a second axis which is at right angles to the first axis. A light source is contained in the housing and an optical system is coupled to the housing for directing light from the light source towards the lens carrier along the second axis. A cylindrical lens is mounted in the lens housing transversely of the second axis for receiving said light and projecting a flat beam of light which strikes the interior of the cockpit to create the light bar. Control means are also coupled to the housing, the control means being operable to move the second part about the first axis to indicate pitch and to move the lens carrier about the second axis to indicate roll. Consequently, deviation of the position of the light bar from the datum will indicate the orientation of the aircraft relative to a horizontal plane containing the light bar.

265404

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