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#1
November 13th 11, 06:27 PM
posted to rec.photo.digital
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Back-illuminated sensors and microlenses
According to these sources:
http://photo-facts.com/PF/archives/8 http://www.tested.com/news/how-backs...nsors-improve- picture-quality/2546/ http://www.viseratech.com/html/Engli..._and_Micro_len s_Technology.htm back-illuminated sensors use microlenses. Does anybody know why? Fill factor should be close to 100% in a back-illuminated sensor. -- Alfred Molon ------------------------------ Olympus E-series DSLRs and micro 4/3 forum at http://tech.groups.yahoo.com/group/MyOlympus/ http://myolympus.org/ photo sharing site 
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#2
November 13th 11, 07:22 PM
posted to rec.photo.digital
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Back-illuminated sensors and microlenses
On 14/11/2011 7:27 a.m., Alfred Molon wrote:
According to these sources: http://photo-facts.com/PF/archives/8 http://www.tested.com/news/how-backs...nsors-improve- picture-quality/2546/ http://www.viseratech.com/html/Engli..._and_Micro_len s_Technology.htm back-illuminated sensors use microlenses. Does anybody know why? Fill factor should be close to 100% in a back-illuminated sensor. Perhaps two reasons. There are several transistors per pixel as well as the photodiode on the silicon wafer - so the surface can't be 100% photodiode. Back illuminated sensors suffer from light bleed between pixels. Microlenses possibly work to reduce this.
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#3
November 13th 11, 07:26 PM
posted to rec.photo.digital
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Back-illuminated sensors and microlenses
On Sun, 13 Nov 2011 19:27:11 +0100, Alfred Molon
wrote: Unwrapped URLs. According to these sources: http://photo-facts.com/PF/archives/8 http://www.tested.com/news/how-backs...-quality/2546/ http://www.viseratech.com/html/Engli...Technology.htm back-illuminated sensors use microlenses. Does anybody know why? Fill factor should be close to 100% in a back-illuminated sensor. Regards, Eric Stevens
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