yan19930329 wrote:
其實……F光圈，也就...(恕刪)
我覺得還是先通知一下佳能好了
福利優先
要不然如果因為技術問題誤解
被佳能認定為商譽受損的話
可能要開一個研發部門送給佳能唷^^"
Patent: Canon EF 14 f/2.8 with Fluorite
Patent Publication No. 2013-37339
2013.2.21 Release Date
Filing date 2011.7.12
Example 1
Zoom ratio 1.00
Focal length f = 1.00mm
Fno. 2.90
Half angle of view ω = 56.66 °
Image height Y = 1.52mm
9.51mm length lens
BF 2.82mm
6 aspherical surfaces, the first surface 25
Punctually
Example 3
Zoom ratio 2.06
2.06mm – f = 1.00 focal length
Fno 2.79 -. 4.00
Half angle of view ω = 51.27 – 32.82 °
1.33mm – Y = 1.25 image height
8.55mm – 8.79 length lens
BF 2.41 – 3.46mm
Aspheric first surface, the fifth surface, the first surface 26
Positive and negative positive negative
Example 6
Zoom ratio 1.00
Focal length f = 1.00mm
Fno. 2.90
Half angle of view ω = 87.35 °
Image height Y = 21.60mm
9.51mm length lens
BF 2.82mm
6 aspherical surfaces, the first surface 25
Punctually
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