| 摘要 |
PROBLEM TO BE SOLVED: To have a configuration that accommodates a first and second lens barrels in a third lens barrel, and obtain an excellent optical performance without increase in manufacturing accuracy of each lens barrel or assembling accuracy thereof.SOLUTION: An optical lens barrel 100 includes: a first lens barrel 120 that holds a first optical system 110; a second lens barrel 140 that holds a second optical system 130; and a third lens barrel 150 that has an inner peripheral face of an inner diameter larger than an outer diameter of an outer peripheral face of the first and second lens barrels, and accommodates the first and second lens barrels on an inner side of the inner peripheral face. A correction optical element 160 performing an optical correction to mutual eccentricity among a central axis 151 of the inner peripheral face of the third lens barrel, an optical axis 111 of the first optical system, and an optical axis 131 of the second optical system is held by the inner peripheral face of the third lens barrel.SELECTED DRAWING: Figure 1 |
