Map reading apparatus

Details Map reading apparatus Map reading apparatus

1975-09-29

1977-06-14

Haroian, Harry N.

Optics: image projectors

Slide transfer mechanism

Slides fixed to movable carrier

353 78, G03B 2122, G03B 2310

Patent

active

040294080

ABSTRACT:
The present invention relates to a map reading device or apparatus adapted to receive a film having a series of frames of map indicia thereon, each map indicia frame representing a certain geographical area such as a State, a portion of a State, a City, a portion of a City, or County, etc. Light is projected through any one of a series of certain desired map indicia frames and a map image is thusly formed. The formed map image is directed through a magnifying lens that magnifies or enlarges the map image and projects the same on a forwardly spaced screen within the map reading apparatus where the map can easily and conveniently be read and studied even while operating a motor vehicle.

REFERENCES:
patent: 1564722 (1925-12-01), Tavern et al.
patent: 2548488 (1951-04-01), Mella
patent: 2570652 (1951-10-01), Dilks
patent: 2916964 (1959-12-01), Paulsohn
patent: 3257899 (1966-06-01), Hoyt
patent: 3376782 (1968-04-01), Whitley et al.
patent: 3826579 (1974-07-01), Schurgim
patent: 3865477 (1975-02-01), Gast
patent: 3897144 (1975-07-01), Hicks

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