LENS FIXING STRUCTURE

摘要: PURPOSE:To prevent cracking of a lens by consisting the title structure 1st fixing member which is press-fitted and fixed 2nd forming to hardness lower than member. CONSTITUTION:A press-fitting ring 10 3 formed material hardly acts compressive stress on 3, i.e., having small coefft. elasticity iron or like holder 2, for example, brass outside diameter thereof larger inside part 2a 2. The previously with operation be thereby easily carried out in short period time, since completed when 2a. allowance chipped form burr 11. crack thus prevented without strictly controlling excessively increasing 3.