| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel capable of having no loss of images when a filter is replaced and being reduced in size, and an optical device.SOLUTION: A lens barrel includes insertion/removal means for inserting or removing an IR cut filter 161, on an optical path. The insertion/removal means has a holder 160 for holding the IR cut filter 161. The holder 160 is composed of the combination of division holders 164, 167. The division holders 164, 167 are provided with a groove 165 into which the IR cut filter 161 is inserted by sliding.SELECTED DRAWING: Figure 2 |
