Patent ID: 8576375
Filing Date: 2013-11-05
Classification: G03F

Abstract:
1. An optical member-holding apparatus which holds a plurality of optical members in a barrel, comprising: a first holding portion configured to hold a first optical member, of the plurality of optical members, which guides a light beam to a mask formed with a pattern; a second holding portion configured to hold a second optical member, of the plurality of optical members, into which the light beam is incident via the mask; a support base which is attached to the barrel and which supports the first holding portion and the second holding portion; an adjusting mechanism which is attached to the support base and which adjusts a relative position of the first holding portion to the second holding portion; and a position adjusting member which adjusts a position of the support base relative to the barrel; wherein after the position adjusting member has adjusted the position of the support base relative to the barrel, the adjusting mechanism adjusts the relative position of the first holding portion to the second holding portion.