| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical device which is easily assembled and adjusted and has high precision, and to provide its manufacturing method. SOLUTION: The deviation of optical axes of convex lenses 2-1 to 2-8 owing to the change of temperature can be eliminated by manufacturing lens array transparent blocks 3-1, 3-2 integrating the transparent blocks 3-1a, 3-2a or the like with the convex lenses 2-1 to 2-8. The optical device is easily assembled, adjusted and worked, and high precision is obtained by using parts in which the lens array transparent blocks 3-1, 3-2 are equally divided into one side of convex lenses 2-1, 2-3, 2-5, 2-7 side and the other side of convex lenses 2-2, 2-4, 2-6, 2-8 side. |
