Patent ID: 6406153
Filing Date: 2002-06-18
Classification: G02B

Abstract:
A spectral dispersion device comprising:a transmission member having an interior and an exterior, an image surface, a reflection surface, and a dispersion surface; the interior being translucent to a ray of light having at least two different wavelengths; the image surface including an image; the reflection surface being oriented at a reflection angle with respect to the image surface; the dispersion surface being oriented at a dispersion angle with respect to the image surface; and the transmission member being structured to receive the ray of light through the image surface and allow it to pass into the interior of the transmission member, reflect the ray of light off the reflection surface within the interior, and disperse the ray of light through the dispersion surface from the interior of the transmission member to the exterior thereof to display a light pattern in the form of a spectrally-dispersed representation of the image that is visible from the exterior.