Differences

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--- radiometry [2016/11/15 07:26] – tobi
+++ radiometry [2017/03/05 08:42] – tobi
@@ Line 1: / Line 1: @@
-===== Radiometry and photometry units for image and vision sensor developers =====
+===== Notes on Practical Photometry =====
+==== Radiometry and photometry units for image and vision sensor developers ====
 (relating chip illumination to scene illumination)
-See these {{https://drive.google.com/file/d/0BzvXOhBHjRhed01tbVkybUpHMzg/view?usp=sharing|Notes on practical photometry}}, written based on work in the [[http://www.ini.unizh.ch/~tobi/bipImager/|Pulsed-Bipolar imager project]] carried out at Synaptics, Foveon and National Semiconductor around 1997.
+See these {{https://drive.google.com/file/d/0BzvXOhBHjRhec01DUDRxb3M4dE0/view?usp=sharing|Notes on practical photometry}}, written based on work in the [[https://www.ini.uzh.ch/~tobi/bipImager/index.php|Pulsed-Bipolar imager project]] carried out at Synaptics, Foveon and National Semiconductor around 1997 and periodicaly updated.
-There is a magic formula relating chip illumination to scene illumination explained (albeit very concisely) and the error that existed previously is now corrected (Feb 2006). These notes also explain photometry units: nits, candela, lumens, lux, and they relate incident illumination to luminance of a surface. They include a few actual measurement results comparing lux and nits, and a candle measurement.
+There is a magic formula relating chip illumination to scene illumination explained (albeit very concisely) and the error that existed previously is now corrected (March 2017). These notes also explain photometry units: nits, candela, lumens, lux, and they relate incident illumination to luminance of a surface. They include a few actual measurement results comparing lux and nits, and a candle measurement.