Lens apparatus for a vehicle

Details Lens apparatus for a vehicle Lens apparatus for a vehicle

1988-09-21

1990-03-06

Arnold, Bruce Y.

350247, G02B 308, G02B 702

Patent

active

049060821

ABSTRACT:
The lens apparatus includes a Fresnel lens which can be placed in a fixed and permanent position, e.g., in a fixed frame on the trunk of an automobile, or moved to be within sight of the operator of a vehicle so that when the operator is backing the vehicle so that the lens is approximately perpendicular to the line of sight of the operator in order to expand his/her the field of view. In the latter case, the moving mechanism moves the lens between a stowed position in a housing and an operational position. In another embodiment, the Fresnel lens may be placed between two transparent portions of a bracket which is adapted to be mounted to the trunk of a vehicle.

REFERENCES:
patent: 1622933 (1927-03-01), Webber
patent: 2953961 (1960-09-01), Court
patent: 3159439 (1964-12-01), Miller
patent: 3809462 (1974-05-01), Baumgardner et al.
patent: 3826562 (1974-07-01), Baumgardner et al.
patent: 3842729 (1974-10-01), Mandrup
patent: 3947095 (1976-03-01), Moultrie
patent: 4274714 (1981-06-01), Okamura
patent: 4711527 (1987-12-01), Rimmell et al.

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