Gobo frosted or etched using a pico-second or femto-second laser
OwnerJoel A. Nichols, Benjamin Powers +1inventors
InventorsJoel A. Nichols, Benjamin Powers, Samuel Morrison
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Abstract
A gobo used to project an image by selectively transmitting and blocking light includes a blank made of transparent material. There is an etched or frosted area on the surface of the blank having a surface morphology characterized by micro-pyramids, which may be produced using a pico-second or femto-second laser. The micro-pyramids cause micro-lensing to occur when the gobo is in use, thereby rendering the etched or frosted area fully opaque and cause the gobo to produce a sharp projected image.
Claims20
A gobo used to project an image by selectively transmitting and blocking light, comprising:
- a blank made of transparent material;
- and
- a fully opaque etched or frosted area on a surface of the blank having a surface morphology characterized by micro-pyramids.
A gobo apparatus, comprising:
- a housing;
- a light source disposed within the housing;
- and
- a gobo used to project an image by selectively transmitting and blocking the light produced by the light source, the gobo comprising:
- a blank made of transparent material;
- and
- a fully opaque etched or frosted area on a surface of the blank having a surface morphology characterized by micro-pyramids.
A method of manufacturing a gobo used to project an image by selectively transmitting and blocking light, comprising the steps of:
- providing a blank made of transparent material;
- and
- etching or frosting an area on a surface of the blank, thereby producing a surface morphology characterized by micro-pyramids that is fully opaque.
Dependencies are inferred from the claim text.