| 摘要 |
A device for projecting a rainbow-like spectral display including a housing provided with a projecting arrangement for projecting the rainbow-like spectral display onto a viewable surface. The projecting arrangement includes segments, each segment including a light emitting source for producing light rays, and a diffraction member such as a prism for effecting a spectral dispersion of the light rays for projecting same to produce the rainbow-like spectral display. Preferably, each segment also includes a convergent or convex lens disposed between the light emitting source and the diffraction member, and a reflector covering a rear portion of each light emitting source. The housing could be portable, battery operated, and in the form of a casing provided with a hinged cover. The segments have a particular design so that in one embodiment, the rainbow-like spectral display is in the form of a religious symbol, and in another embodiment, the rainbow-like spectral display is in the form of a rainbow-like spectral digital time display. In a further embodiment, the device is a clock or watch with the projecting arrangement including numerous units angularly disposed side-by-side in a circle, with each unit including three segments disposed end to end, so that energizing particular ones of the light emitting sources of selected units provides a second hand, a minute hand and an hour hand for a rainbow-like spectral time display.
|
