Sighting device for luminaire positioning

Details Sighting device for luminaire positioning Sighting device for luminaire positioning

1974-08-29

1976-09-07

Aegerter, Richard E.

Geometrical instruments

Straight-line light ray type

Structurally installed

33277, 33279, 240 25, 240 4426, F21S 110, F21V 1902

Patent

active

039785904

ABSTRACT:
Disclosed is a device for facilitating the calibration and setting of the inclination angle of a luminaire by sighting from the rear of the luminaire to a set of points such as the opposite curb of a roadway. The device may be placed on or permanently secured to the luminaire and is settable according to a derived calibrated table, either empirically derived or calculated, based on such factors as pole height, distance of pole from highway, width of the roadway, and the like.

REFERENCES:
patent: 1307441 (1919-06-01), Frensdorf
patent: 2017849 (1935-10-01), Blee et al.
patent: 2806288 (1957-09-01), Sarvis
patent: 2859333 (1958-11-01), Burliuk et al.
patent: 3385258 (1968-05-01), Curtin et al.
patent: 3714415 (1973-01-01), Stephensen

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