Timeline for How to measure blue light at home?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Sep 26, 2015 at 16:17 | vote | accept | Jand | ||
| Sep 26, 2015 at 16:17 | vote | accept | Jand | ||
| Sep 26, 2015 at 16:17 | |||||
| Sep 26, 2015 at 16:02 | comment | added | boyfarrell | Well you need to look at the transmission graphs and select a filter which has very high values in 400 to 470 region. But a word of warning, you might have to use a second filter to block out the IR because the blue filter tend to transmit again towards the red end of the spectrum. So pick a short wave pass that lets blue though and combine it with a red-IR block. | |
| Sep 26, 2015 at 15:56 | history | edited | boyfarrell | CC BY-SA 3.0 |
added 258 characters in body
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| Sep 26, 2015 at 15:48 | comment | added | Jand |
Ok, which of the filters in opticalfiltershop is better to use?
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| Sep 26, 2015 at 15:39 | comment | added | boyfarrell | If you get the transmission spectrum of the filter in the range of interest you could do that. Blue-pass red-green-IR block are hard to find. | |
| Sep 26, 2015 at 15:27 | comment | added | Jand | Thanks for the tip. What is important for me is the relative values not absolute measurement. So regarding that I'm not much of an electronic savvy, what about buying a consumer light meter and putting a transparent colored plastic filter in front of it? | |
| Sep 26, 2015 at 15:08 | history | answered | boyfarrell | CC BY-SA 3.0 |