Image projection fixtures
AssigneeCooper Technologies Company
InventorCraig Levasseur
Life of this patent
Estimating the term…
Abstract
An image projector includes a generally cylindrical housing containing a slide or pattern holder, a fixed lens and an adjustable lens. A separate lamp house threadedly engaged with the housing contains a lamp and electrical connections to the lamp. A cylindrical forward housing or shroud is threadedly engaged with the housing at its opposite end and includes a window through which the light pattern is transmitted. Seals are incorporated adjacent to the threaded connections to assure weather tight operation. The housing is carried in a sleeve which is spaced to allow air circulation around the housing. The sleeve is carried in a yoke which permits elevational adjustment of the projector.
Claims22
An image projector including a generally cylindrical main body housing, and attached to said main body housing an optical assembly in said housing including a pattern holder, a fixed lens and an adjustable lens,
- a lamp house including a lamp secured to said lamp housing, and
- mounting means for supporting said projector;
- characterized in that said projector further comprises a shroud having a window removably secured and in separately sealed engagement with said main body housing to provide access to said optical assembly;
- said lamp house is removably secured and in separately sealed engagement with said main body housing to provide access to said lamp;
- and
- said mounting means includes a generally cylindrical sleeve spaced from said main body housing, fastening means securing said sleeve to said main body housing and a yoke pivotally secured to said sleeve;
- whereby the projector lamp assembly may be relamped without unsealing the optical assembly;
- and further whereby the optical assembly may be adjusted or replaced without unsealing the lamp assembly.
An image projector comprising;
- a generally cylindrical main body housing;
- an optical assembly including a fixed lens, a pattern holder assembly, a housing movable with respect to said fixed lens and a projection lens within said movable housing and means securing said optical assembly to said cylindrical main body housing;
- a cylindrical shroud having a window at one end threadedly engaged with said cylindrical main body housing member;
- a lamp house threadedly engaged with said cylindrical main body housing including a lamp and a socket for receiving said lamp;
- a generally cylindrical sleeve surrounding a portion of said cylindrical main body housing including fastener means for enabling radical adjustment of said cylindrical main body housing;
- a yoke secured to said generally cylindrical sleeve to enable pivotal adjustment of said projector;
- and
- further comprising seals carried on each end of said cylindrical main body housing sealing against said cylindrical shroud and said lamp house;
- whereby the projector lamp assembly may be relamped without unsealing the optical assembly;
- and further whereby the optical assembly may be adjusted or replaced without unsealing the lamp assembly.
An image projector comprising:
- a generally cylindrical main body housing,
- a shroud attached to said main body housing including a window;
- an optical system including a light source, a pattern holder with a pattern or slide and a lens system within said shroud for projecting a beam of light through said window including focusing means for varying the focus of said beam at a distance from said main body housing;
- mounting means for supporting said main body housing including a sleeve surrounding said cylindrical main body housing and fastening means for securing said sleeve to said main body housing, said fastening means being adjustable to permit radial adjustment of said main body housing without affecting the focus of said beam of light;
- said light source includes a generally cylindrical lamp house secured to said cylindrical main body housing and seal means positioned between said cylindrical main body housing and said lamp house;
- and
- said optical system is secured to said cylindrical main body housing and said shroud is secured to said main body housing, and seal means positioned between said main body housing and said shroud;
- whereby the projector lamp assembly may be relamped without unsealing the optical assembly;
- and further whereby the optical assembly may be adjusted or replaced without unsealing the lamp assembly.
A projector as claimed in 17 wherein said sleeve is spaced from said cylindrical main body housing and said fastening means includes set screws movable with respect to said cylindrical main body housing to permit said main body housing to be rotated relative to said sleeve.
A projector as claimed in 17 wherein said sleeve is spaced from said cylindrical main body housing and said fastening means includes set screws movable with respect to said cylindrical main body housing to permit said main body housing to be rotated 360° relative to said sleeve.
Dependencies are inferred from the claim text.