초록 ▼

A light pattern generator is utilized to produce an image which is projected onto a stage or screen. The image is derived from a beam of light. The light pattern generator comprises a heat resistant glass plate having a reflective layer deposited on one surface thereof. A nonreflective layer is depo

A light pattern generator is utilized to produce an image which is projected onto a stage or screen. The image is derived from a beam of light. The light pattern generator comprises a heat resistant glass plate having a reflective layer deposited on one surface thereof. A nonreflective layer is deposited on the surface of the reflective layer. Both of the layers are etched to produce an opening extending through the layers wherein the opening has the shape of the desired image. The beam of light is directed through the transparent plate and the portions not passed through the opening are reflected by the mirror surface of the reflective layer. This prevents the buildup of heat within the light pattern generator. Any extraneous light which is received at the nonreflective layer is absorbed to prevent the escape of unwanted light and its projection to the stage.

대표청구항 ▼

A light pattern generator for producing an image in a light beam, comprising: a transparent plate for placement in said light beam, and a light reflective layer bonded to a surface of said plate, said reflective layer having an opening in the shape of said image for passing a portion of said light b

A light pattern generator for producing an image in a light beam, comprising: a transparent plate for placement in said light beam, and a light reflective layer bonded to a surface of said plate, said reflective layer having an opening in the shape of said image for passing a portion of said light beam therethrough to produce a beam in the shape of said image, said reflective layer for reflecting a portion of said light beam which does not pass through said opening. A light pattern generator for producing an image in a light beam, comprising: a transparent plate for transverse placement in said light beam, a light reflective layer bonded to said plate, said reflective layer having an opening in the shape of said image, a nonreflective layer bonded to said plate, said nonreflective layer having an opening in the shape of said image and matched to the opening in said reflective layer, and said openings for passing a portion of a light beam therethrough to produce a beam in the shape of said image, said reflective layer for reflecting a portion of said light beam which does not pass through said openings, said nonreflective layer for absorbing extraneous light which strikes said nonreflective layer.