Timeline for Why can color filters be combined?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 25, 2021 at 18:21 | history | became hot network question | |||
| Nov 25, 2021 at 12:48 | vote | accept | joekr | ||
| Nov 25, 2021 at 10:46 | answer | added | dominecf | timeline score: 3 | |
| Nov 25, 2021 at 10:40 | comment | added | joekr | I am talking about the case that the light of the turn signal turns on. In that case the light passes through 1. the green plastic, 2. the red plastic | |
| Nov 25, 2021 at 10:36 | comment | added | franz | Concerning your question; I don't think that these plastics are real colour-filters. They are basically plastics with pigments added. These pigments interact with light and enhance certain wavelengths (e.g. colours of light) but the background radiation is still a diffuse mixture of other visible wavelengths. Therefore there is still 'enough' red (and basically all other colours as well) left after the green plastic. | |
| Nov 25, 2021 at 10:35 | comment | added | franz | I think you are mixing a couple of things. First of all the colours that you (or in the case of the image; the camera) sees is basically the reflected sunlight. Therefore the "green" plastic reflects (predominantly) green light and "red" plastic predominantly red light. Absorption as you write can only happen, if light transmits through both materials, so if the lights of the car were turned on. | |
| S Nov 25, 2021 at 10:21 | review | First questions | |||
| Nov 25, 2021 at 10:35 | |||||
| S Nov 25, 2021 at 10:21 | history | asked | joekr | CC BY-SA 4.0 |