J. ARMSTRONG
Architects at 137 Pl, Bellevue, WA
License number
Alaska AELE2177
Issued Date
Apr 1, 1971
Effective Date
Nov 7, 2007
Category
Architects, Engineers and Land Surveyors
Address
Address
2224 137Th Pl SE, Bellevue, WA 98005
Professional information
Lighting System For Playing Fields
US Patent:
5274534, Dec 28, 1993
Filed:
Apr 8, 1992
Appl. No.:
7/865099
Inventors:
J. Delvin Armstrong - Bellevue WA
International Classification:
F21V 2110
US Classification:
362249
Abstract:
The illumination system includes a plurality of illumination structures (10), the illumination structures being arranged around the periphery of the playing field. Each illumination structure (10) includes a mounting pole (12) and a plurality of luminaires which are individually mounted by mounting arms from the pole. The luminaires are cut-off forward-throw luminaires. The luminaires are arranged relative to each other such that each luminaire, respectively, does not block light originating from any of the other luminaires.
Apparatus For Promoting Plant Growth With Artificial Light
US Patent:
4078169, Mar 7, 1978
Filed:
Aug 23, 1976
Appl. No.:
5/716763
Inventors:
J. Delvin Armstrong - Bellevue WA
International Classification:
H05B 3302
US Classification:
362122
Abstract:
An elongated light source is positioned at the focal point of a reflector which is shaped so that the majority of the light generated by the light source is provided over a 60. degree. included angle along its length, uniformly illuminating a defined area on a light delivery plane, the defined area having a longitudinal dimension equal to the length of the light source, and a transverse dimension equal to the distance between the reflector and the light delivery plane.