| 摘要 |
PURPOSE:To mold plural lenses integrally with the lens barrel by accurately setting the optical axes of the lenses. CONSTITUTION:A 1st lens 2 and a 1st relay cylinder 6 are molded out of light- transmissive resin 21 by using a 1st mold 10 and a 2nd lens 3 and a 2nd relay cylinder 7 are molded out of light-transmissive resin 21 by a 2nd mold 11 and then the 2nd mold 11 is moved to align the axes 22 and 23 of cavities 12 and 16 with each other and then the 1st lens 2 and 2nd lens 3 are so arranged that optical axes 4 and 5 are aligned with each other. Then a cavity 24 is provided outside the 1st and 2nd relay cylinders 6 and 7 and light-nontransmissive resin 25 is filled and solidified in a 3rd cavity 24. Consequently, the optical axes 4 and 5 are aligned by aligning the 22 and 23 of the cavities 12 and 16, thereby accurately molding the 1st and 2nd lenses 2 and 3. |
