| 摘要 |
An optical device and a projector having the optical device is provided, which have a liquid-crystal display having, on an exit side, a first exit polarizer plate and a second exit polarizer plate arranged thermally insulated from each other and separated in an optical axis direction, the first exit polarizer plate being bonded on a first heat conductor plate which is bonded on an incident surface of a color-combining optical unit while the second exit polarizer plate is bonded on a second heat conductor plate held by a polarization-plate holding frame. By heat release through respective independent routes, it is possible to suppress the deterioration due to the temperature rise on the exit polarizer plates and liquid-crystal display.
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