摘要
当光线通过光学玻璃的表面时,由于反射作用造成的損失可达4.5-9.0％。如果某些光学仪器有很多折射面,則因反射引起的損失可高达70％以上,因而大大地減低了光的透射量;这样对于造象的真实度和清晰度都有很大的影响。为了避免这种困难,人們采用了透明复蓋膜的办法。
A new method for the formation of transparent film on optical lens is here described. When a concentration of 15-20% silion tetrachloride in ethar-ethanol solu- tion (ether-ethanol ratio in volume=1:3) is used as a film-forming agent, and the revolving speed of the lens were 3000 r. p. m., a satisfactory and transparent SiO_2 film on optical lens may be formed.
出处
《福建师范大学学报（哲学社会科学版）》
1963年第2期55-58,共4页
Journal of Fujian Normal University:Philosophy and Social Sciences Edition
