Timeline for Phototransistor responsivity does not match datasheet?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 30, 2014 at 22:39 | comment | added | user39532 | Some of my older data with my previous setup was definitely around 4-5x. | |
| Mar 30, 2014 at 22:26 | comment | added | The Photon | Unfortunately, my numbers don't add up. I found actual tables of the standard luminosity curve, and the red LED should actually have closer to 5x the output power to achieve the same luminosity as the green LED. So really, if you measure a 2.5x difference there's actually about half the red light being lost somewhere. | |
| Mar 30, 2014 at 22:22 | comment | added | user39532 | Thank you so much! I didn't realize that Candela/Luminous Intensity was normalized to the human eye. I also mistakenly thought that Luminous Intensity and Irradiance were interchangeable in this application. | |
| Mar 30, 2014 at 22:21 | vote | accept | user39532 | ||
| Mar 30, 2014 at 22:17 | history | edited | The Photon | CC BY-SA 3.0 |
better curve
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| Mar 30, 2014 at 22:08 | history | answered | The Photon | CC BY-SA 3.0 |