| nsc29 | 2010-06-26 11:24 |
設(shè)計(jì)CD PLAYER鏡頭 wavelength 780nm DPD 4.5mm focal length 4.5mm material sk5 edge thickness >1mm aspherics allowed on both sides image plate 1.25mm thick ,fk5 spacing >1.8mm between lens and plate inage format 0.2mm dia (use image heights of 0.0 and 0.1 mm) 老師留的作業(yè)。。。。 |
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