Illumination method and apparatus

Details Illumination method and apparatus Illumination method and apparatus

1989-02-27

1990-01-23

Arnold, Bruce Y.

Illumination

Supported by vehicle structure

Condition responsive

362297, 362346, G02B 508, F21V 700

Patent

active

048954373

ABSTRACT:
Homogeneous illumination of a strip of area (12) on a surface (13) of a substrate (10) is achieved by directing light at a plurality of first light-reflective members (22) arranged above the substrate in spaced relationship parallel to the longitudinal axis (17) of the strip. Each ligh-reflective member (22), which takes the form of a three-sided prism reflector, splits the light incident thereon into two beams (40) which are each reflected by the reflector in an opposite direction downwardly at the strip so as to strike it at a grazing angle. Light is also directed at a second light-reflective body (30) which takes the form of a metal bar spaced above the substrate parallel to the longitudinal axis (17). The bar has a light-reflective surface (32) which serves to reflect the light directed thereat towards the strip (12) at an inclined angle in a direction generally perpendicular to the beams (40) reflected by the first light-reflective members (22).

REFERENCES:
patent: 4798448 (1989-01-01), Van Raulte

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