Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Patent
1996-03-12
1998-02-17
Nelms, David C.
Optical: systems and elements
Single channel simultaneously to or from plural channels
By surface composed of lenticular elements
359621, 359634, G02B 2710, G02B 2714
Patent
active
057197067
ABSTRACT:
An illumination apparatus includes a light source for emitting light including three primary color components; a condensing device for condensing light emitted by the light source; a luminous surface formation device for converging the light from the condensing device and dividing the converged light into color light rays respectively of the three primary colors to form color luminous surfaces respectively of the three primary colors; relay lenses respectively provided in the vicinity of the color luminous surfaces to receive the color light rays from the luminous surface formation device; a field lens for receiving the color light rays from the relay lenses; a first microlens array for receiving the color light rays from the field lens; and a second microlens array for receiving the color light rays from the first microlens array. The first microlens array includes a plurality of first microlenses arranged two-dimensionally. The second microlens array includes a plurality of second microlenses two-dimensionally in the same quantity as the first microlenses in correspondence therewith. The first microlenses array arranges actual images of the color luminous surfaces two-dimensionally. The second microlenses respectively provided in the vicinity of the actual images of the color luminous surfaces cause the color light rays from the corresponding first microlenses to travel substantially parallel to one another. Thus, color microscopic luminous surfaces respectively of the three primary colors are formed separately and periodically in accordance with a prescribed arrangement.
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Masumoto Yoshihiro
Wada Mitsuhiro
Mack Ricky
Matsushita Electric - Industrial Co., Ltd.
Nelms David C.
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