Bollard luminaire

Details Bollard luminaire Bollard luminaire

1991-05-02

1992-04-14

Lazarus, Ira S.

Illumination

Light source and modifier

Plural serial lens elements or components

3621531, 362300, 362346, F21V 114

Patent

active

051053470

ABSTRACT:
The improved bollard luminaire has an upwardly directed, elliptical main reflector and a lamp "nested" within such reflector and positioned at or near its lower focal point. An upper cone-shaped reflector receives light from the main reflector and directs it laterally through a transparent lens element. Such element provides a 360.degree. lateral light opening unobstructed by wiring, support posts or the like. Light reflected through such opening is relatively sharply focused along an axis about 70.degree. from vertical. Unreflected light from the lamp which "misses" both reflectors also provides a degree of "uplighting," often found useful for aesthetic purposes.

REFERENCES:
patent: 1248688 (1917-12-01), Ludescher
patent: 1877785 (1932-09-01), Andrews
patent: 1883803 (1932-10-01), Martin, Jr.
patent: 1904248 (1933-04-01), Pixley et al.
patent: 3264463 (1966-08-01), Bonner, Jr.
patent: 3634675 (1972-01-01), Madsen
patent: 4004132 (1977-01-01), Glass et al.
patent: 4591960 (1986-05-01), Jones
patent: 4739456 (1988-08-01), Little
patent: 4740874 (1989-04-01), Wylie et al.

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