Re: light meter, Blue Diodes, visible light phototransistors

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Article #9775

#9775

From: Dan Dunphy
Date: Sun, 27 Jan 1991 06:48

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Silicon light sensors are deficient in blue sensitivity. The
device you refer of is a blue enhanced silicon cell. I really
don't know how this is done, possibly a dopant, or a filter.A
This type if cell is what is used in most if not all
photographic light meters.

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References: <1990Dec24.033306.15182@ecf.utoronto.ca>

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From: dunphy@col.hp.com (Dan Dunphy)
Newsgroups: sci.electronics
Subject: Re: light meter, Blue Diodes, visible light phototransistors
Message-ID: <16120025@col.hp.com>
Date: 27 Jan 91 06:48:03 GMT
References: <1990Dec24.033306.15182@ecf.utoronto.ca>
Organization: HP Colorado Springs Division
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