OPTICAL ARRANGEMENT IN AN OPTICAL SYSTEM, IN PARTICULAR AN ILLUMINATION SYSTEM

摘要

PURPOSE: An optical device is provided to efficiently discharge heat from an optical device by directly contacting a thermal discharge device with a holder device. CONSTITUTION: An optical device includes at least one optical device and at least one heat discharge device(120,130). The thermal discharge device partially discharges thermal energy generated from the optical device to the outside. The thermal discharge device is directly not contacted with the optical device. The optical device is held by at least one holder device(110). The heat discharge device is directly contacted with the holder device.