Multi-port projector improving the uniformity of the illuminated

Details Multi-port projector improving the uniformity of the illuminated Multi-port projector improving the uniformity of the illuminated

1996-10-03

1998-06-16

Quach, Y My

Illumination

Light source and modifier

Plural serial lens elements or components

362 33, 362804, F21V 1304

Patent

active

057659435

ABSTRACT:
A projector comprises optical elements arranged each to constitute a passage port comprising, on the one hand, a first lens (d.sub.1) ensuring focussing of the light source (3) in the plane to be illuminated, whilst optimizing the correction of optical aberrations and, on the other hand, a second lens (d.sub.2) ensuring a multiplication of the image of the source to permit rendering uniform the illumination in the illuminated plane.

REFERENCES:
patent: 1277110 (1918-08-01), Patterson
patent: 3848119 (1974-11-01), Masson et al.
patent: 4068117 (1978-01-01), Masson
patent: 4912613 (1990-03-01), Sanborn

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