Image projector for use with luminaires
AssigneeRosco Laboratories, Inc.
InventorKevin C. Hooper
Life of this patent
Estimating the term…
Abstract
An image projector that drops into the accessory slot of a luminaire and projects high quality images printed on plastic slides in full color and photographic detail for extended time periods without heat degradation. The projector comprises a cooling fan, infrared and ultraviolet light filter means, and an inexpensive and removable slide assembly comprising a plastic image slide, a protective film slide and at least one mounting plate. The cooling fan is combined with layered, reflective filters to create a protected environment for the plastic image slide to survive the extreme heat at the gate of today's efficient luminaires. The plastic image slide is created on a plastic sheet using conventional computer printing technologies.
Claims21
An image projection apparatus for projecting an image printed on a plastic sheet for extended time periods from an accessory slot in a luminaire having a light source that shines light comprising ultraviolet and infrared energy, the apparatus comprising:
- (a) a base plate for insertion into the accessory slot having an aperture positioned such that the light shines through the aperture;
- (b) light filter means for substantially removing the ultraviolet and infrared energy from the light before the light shines through the image;
- (c) image holding means for removably positioning the image over the aperture in the base plate;
- and
- (d) cooling means for directing a flow of cool air across the base plate and through the image holding means.
An image projection apparatus for projecting an image printed on a plastic sheet for extended time periods from an accessory slot in a luminaire having a light source that shines light comprising ultraviolet and infrared energy, the apparatus comprising:
- (a) a base plate for insertion into the accessory slot, the base plate having an aperture positioned such that the light shines through the aperture;
- (b) light filter means detachably mounted on the base plate over the aperture for substantially removing the ultraviolet and infrared energy from the light;
- (c) a removable image holding means for loading the plastic image sheet into the apparatus and positioning the image over the aperture, the image holding means further comprising a protective film positioned over the aperture for removing infrared energy;
- and
- (d) a cooling means for directing a flow of cool air across the base plate and through the image holding means.
Dependencies are inferred from the claim text.