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[argyllcms] Re: DIY reflective spectro

From: Gerhard Fuernkranz <nospam456@xxxxxx>
To: argyllcms@xxxxxxxxxxxxx
Date: Thu, 09 Mar 2006 22:53:42 +0100

Rolf Gierling wrote:

Hi all,
I found this some time ago. Maybe the link is helpful.
http://www.mazet.de/produkte/jencolour

Yes, particularly the "True Color Sensors" with colorimetric response look very interesting (though the nearly perfectly looking spectral response curves in the data sheet are measured with bandwidh (FWHM) of 27nm, and the data sheet explicitly mentions in a footnote, that the sensor responses are not as ideal as the curves suggest, when spiky narrow-band spectra are being captured).

Compared to the TAOS *TCS230* RGB sensors (used in the french project) which contain an integrated current-to-frequency converter, the interfacing to a microcontroller seems to be less comfortable, since these sensors are bare photo diodes only, thus external photo diode amplifiers and ADC (or currency-to-frequency converts) are necesssary.

Regards,
Gerhard

Regards

Rolf

-----------------------------------------------------
Multitools
Dipl.-Ing. Rolf Gierling

Colormanagement
Consulting - Development - Distribution

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Germany

Tel.  +49 (0) 2 41 / 4 01 25 79
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Author of "Farbmanagement"
2nd Edition August 2004
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ISBN 3-8266-1382-1

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