Abstract: The present invention provides a compact color illumination device (100) for emitting collimated light. The illumination device comprises a reflector cup (102), a blazed diffraction grating (108) formed on the inner surface of the reflector cup, and a plurality of light emitting sources (110) positioned linearly in a focal plane of the reflector cup. Each light emitting source emits a different color of light that is incident on the blazed diffraction grating. The light emitted by the light emitting sources is reflected by the blazed diffraction grating, wherein the reflected light is collimated.

Abstract: Miniature camera lenses (100, 300) include in order an object side (116, 302) to the image side (118, 304) a first double concave lens (102, 306), a lens group including first convergent meniscus lens (104, 318), a first double convex lens (106, 312), a second convergent meniscus lens (108, 318), a second double concave lens (110, 330), a second double convex lens (112, 336), and a divergent meniscus lens (114, 342). The lenses (100, 300) feature a field of view of about fifty six degrees, low distortion, a relatively long back focal distance, and a relatively low F-number.

Abstract: Miniature camera lenses (100, 300) include in order an object side (116, 302) to the image side (118, 304) a first double concave lens (102, 306), a lens group including first convergent meniscus lens (104, 318), a first double convex lens (106, 312), a second convergent meniscus lens (108, 318), a second double concave lens (110, 330), a second double convex lens (112, 336), and a divergent meniscus lens (114, 342). The lenses (100, 300) feature a field of view of about fifty six degrees, low distortion, a relatively long back focal distance, and a relatively low F-number.

Abstract: The present invention provides a compact color illumination device (100) for emitting collimated light. The illumination device comprises a reflector cup (102), a blazed diffraction grating (108) formed on the inner surface of the reflector cup, and a plurality of light emitting sources (110) positioned linearly in a focal plane of the reflector cup. Each light emitting source emits a different color of light that is incident on the blazed diffraction grating. The light emitted by the light emitting sources is reflected by the blazed diffraction grating, wherein the reflected light is collimated.

Abstract: A full color display and photocell device (100) includes a fast response liquid crystal display (105) that has a rate of at least 75 monochrome frames per second, a transparent panel light (140) behind the fast response LCD that can emit a monochromatic light beam having a selected one of three colors, and a photovoltaic cell (150) behind the transparent panel light that converts light energy emanating from the transparent panel light into electrical energy. The full color display and photocell device (100) may also include a controller (160) that synchronizes information coupled to the fast response LCD and controls the transparent panel light to emit a sequence of monochromatic light beams of three colors.

Abstract: A full color display and photocell device (100) includes a fast response liquid crystal display (105) that has a rate of at least 75 monochrome frames per second, a transparent panel light (140) behind the fast response LCD that can emit a monochromatic light beam having a selected one of three colors, and a photovoltaic cell (150) behind the transparent panel light that converts light energy emanating from the transparent panel light into electrical energy. The full color display and photocell device (100) may also include a controller (160) that synchronizes information coupled to the fast response LCD and controls the transparent panel light to emit a sequence of monochromatic light beams of three colors.