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Old 10-09-2015, 09:36 PM
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blink138 (Pat)
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Location: perth w.a.
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Quote:
Originally Posted by bojan View Post
Yep, only one..
BTW, for 2 surfaces the attenuation is 11.64%.. or transmission is 100% - 6% = 94%, and minus additional 6% of 94%, total is 88.36%..
11.64% in total
that depends solely upon the refractive index, but that is what i said!
the higher the refractive index the more light lost due to reflection, but also the better the multicoat works!
i have seen enough and worked on many spectacle refractive indices when i was hoya lens optical technician and an uncoated THI 1.8n lens looks like a mirror!
pat
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