Device to indicate solar exposure

Details Device to indicate solar exposure Device to indicate solar exposure

1986-02-18

1987-01-13

Frankfort, Charles

Geometrical instruments

Miscellaneous

Light direction

33268, G01C 100

Patent

active

046353712

ABSTRACT:
A device for determining the annual exposure of a site which comprises a viewer having a lens with markings provided thereon for determining the line of travel of the sun at a given latitude for selected dates of the year and indicating the position of the sun at selected times of the day. Interchangeable lenses are provided for different latitudes and are changed by removing a bezel which attaches the lens to the hollow cylindrical body of the device.

REFERENCES:
patent: 4177566 (1979-12-01), Haines
patent: 4288922 (1981-09-01), Lewis

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