Aperture stop and manufacturing method thereof
An aperture stop includes a body and a black film. The body is stainless steel and the black film is disposed on at least two corresponding ends of the body. A manufacturing method of the aperture stop is also provided. The aperture stop is produced using the characteristics of the stainless steel body.
Hon Hai Precision Industry Co., Ltd.
Y G
Y10T G02B
additional inventional
Chia-Chun
Chang