Ray tracing method

Details Ray tracing method Ray tracing method

1996-03-15

1997-09-02

Pham, Hoa Q.

Optics: measuring and testing

Lamp beam direction or pattern

356218, G01J 142

Patent

active

056637896

ABSTRACT:
A ray tracing method including the steps of: emitting a ray from a viewpoint, which is set at a predetermined position, toward a lamp; ray tracing a ray which has been stochastically selected as a ray which reaches a light source of the lamp; and analyzing at least one of illuminance at a predetermined position on a surface illuminated by the lamp, luminance at a predetermined position on a surface of the lamp, and a color state of the lamp.

REFERENCES:
patent: 5426500 (1995-06-01), Ohana
Journal of the Illuminating Engineering Institut of Japan, Lighting Equipmen for Automotive use, vol. 76, No. 12, pp. 647-655 (The Illuminating Engineering Institute of Japan, Dec., 1992.

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