| 摘要 |
PURPOSE:To facilitate the adjustment and assembling operation of a lens and to prevent the assembled lens from deforming and an adhesive from sticking to a lens surface by arranging a member made of an adhesive which has flexibility between the engagement part of a lens frame and the lens before it sets. CONSTITUTION:Lenses 1-3 are fitted to the inside of an adhesive piece 5, and while optical axes are observed through an optical device for lens position adjustment, etc., the inclination and axial shift of each lens are corrected with an optical axis correcting tool 6 as shown in a figure. The adhesive piece 5 deforms plastically in follow-up to the displacement of the lens 3, so the lens 3 is held at the position with the plastically deforming adhesive piece 5 even after the optical axis correcting tool 6 is separated from the lens 3. The adhesive piece 5 is irradiated with ultraviolet rays by an ultraviolet-ray lamp 7 from above the lenses 1-3 and sets to fix the lenses 1-3 to the lens frame 4. Thus, the adjustment is facilitated, the lenses are fixed to the lens frame without any shift in adjustment position, and the straining of the lenses and the sticking of the adhesive to a lens spherical surface are prevented.
|
