| http://www.w3.org/ns/prov#value | - In view of the foregoing, as a result of various kinds of simulation and various kinds of tests using light sources supplying pulsed light, the inventor has found that, in an illumination optical system, an optical member disposed at a position at which the cross-sectional area of the luminous flux transmitted therethrough satisfies the following relationship is preferably comprised of fluorite:
|
