Importance

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Abstract

An illumination apparatus includes a light source apparatus that outputs first, second, and third light beams, an afocal system on which the first, second, and third light beams are incident, a first fly-eye lens, a second fly-eye lens, a light convergence system provided in a position downstream of the second fly-eye lens, and a phosphor layer that the first light beam, the second light beam, and the third light beam enter via the light convergence system. When a ratio between the distance between the first light beam and the second light beam and the distance between the first light beam and the third light beam is defined as a ratio R, the ratio R on the light exiting side of the afocal system differs from the ratio R on the light incident side of the afocal system.

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First Claim