Projection gate apparatus having an axially-translatable mount

Details Projection gate apparatus having an axially-translatable mount Projection gate apparatus having an axially-translatable mount

1997-09-30

1999-08-10

O'Shea, Sandra

Illumination

Light source and modifier

Adjustable or repositionable modifier

362323, F21V 2128

Patent

active

059347945

ABSTRACT:
An optical system for an image projector luminaire includes a variable-focus lens having a depth-of-field adjustable as to location along an optical axis, and two carriages each supporting at least one image pattern generator at separate locations along the optical axis, at least one of those carriages being adjustable as to location along the optical axis. The system is operable to bring either or both image pattern generators into focus. Each carriage may support pattern generator exchanger mechanisms for selecting one of a plurality of available patterns, and may also rotate the selected pattern. The movable carriage, the lens, and the pattern exchanger mechanisms may all be motorized and operable by remote or computer control.

REFERENCES:
patent: 5426576 (1995-06-01), Hewlett
patent: 5691886 (1997-11-01), Stacy
patent: 5816690 (1998-10-01), Romano et al.
patent: 5828485 (1998-10-01), Hewlett

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