| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical member in which, when an optical thin film is formed by a wet deposition method, a bonding agent is dissolved to prevent optical performance from being lowered. <P>SOLUTION: An optical member 1 includes: a cemented lens 5 configured by joining two lenses; an optical thin film 15 formed by a wet deposition method on a lens surface 6a on an outer surface side of a convex lens 6 located at one end of the cemented lens 5; and a holding member 10 mounted so as to hold the cemented lens 5 by connecting with an outer peripheral portion of a concave lens 7 located at the other end of the cemented lens 5 and used integrally with the cemented lens 5. The holding member 10 is formed into a cylindrical shape surrounding outer peripheral portions of the convex lens 6 and the concave lens 7. The holding member 10 has holes 14 formed so as to expose an outer peripheral surface of the convex lens 6 to the outside. <P>COPYRIGHT: (C)2012,JPO&INPIT |
