Optical System
OwnerPavel Jurikinventor
Life of this patent
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Abstract
For wash light-type lamps for theatre and show stages there is designed an optical system having at least two optical elements with a variable mutual position, where the first optical element (4) has a central hole (5) and a translucent screen (7) moveable with respect to the central hole, the positioning of the screen with respect to the central hole (5) being coupled with a mechanism for a change of the mutual position of the optical elements.
Claims5
Optical system having at least two optical elements with a variable mutual position, characterised in, that the first optical element (4) has a central hole (5) and a translucent screen moveable with respect to the central hole, the positioning of the screen with respect to the central hole (5) being coupled with a mechanism for a change of the mutual position of the optical elements.
Optical system according to any of the preceding claims, characterised in, that the screen consists of two semicircles (7), the semicircles covering the screen central hole (5) while in the first limit position and being outside the screen central hole (5) while in the second limit position.
Optical system according to any of the preceding claims, characterised in, that the screen is made of a frosted glass.
Dependencies are inferred from the claim text.