Optics: image projectors – Plural projection paths with single light source
Patent
1976-04-05
1977-05-31
Morrison, Malcolm A.
Optics: image projectors
Plural projection paths with single light source
353 11, G09B 908
Patent
active
040260380
ABSTRACT:
A ship's maneuvering simulator comprises a wheel house of a ship having a projection screen spaced therefrom and a point light source-shadow image projector provided for the projection of a shadow image, and one or more scale models and air-water images controlled by a computer, and a projection device for the projection of a motionless part of a forepart of a ship that is visible from the wheel house. At least two plane translucent projection screens are provided that join one another at an angle, and behind each projection screen the point light source-shadow image projector is mounted such that the central position in the wheel house and the stationary point light source are positioned symmetrically with respect to this projection screen and the models provided are uniform.
REFERENCES:
patent: 3514871 (1970-06-01), Tucker
patent: 3862358 (1975-01-01), Wolff
patent: 3871113 (1975-03-01), Crago et al.
Van Den Brug; An Experimental Simulator for the Manoeuvring of Surface Ships; Netherlands Ship Research Centre TNO; Communication No. 185; June 1969.
Prins Geert Jan
Sunter Lubbertus
Krass Errol A.
Morrison Malcolm A.
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk On
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