| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lens assembly having not only a structure for preventing the occurrence of dew condensation on a surface of lens in contact with a space formed on a rear surface side of the lens positioned on an object side most when the space is formed on the rear surface side of the lens but also a dust-preventive function. Ž<P>SOLUTION: This lens assembly is constituted by sealing a liquid L in the space 17 between the first lens 14 positioned on the object side most among four lenses 11-14 inserted into the lens frame 10 and the second lens 13 being adjacent to the first lens 14. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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