Timeline for How can a digital camera capture and render IR (and UV) light?
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Jan 21 at 17:13 | answer | added | user152237 | timeline score: 0 | |
| Oct 7, 2021 at 16:23 | comment | added | Yorik | the camera on the phone is not transmitting light nor color: it is transmitting encoded numbers. The CCD is reacting to the em-source by registering a voltage, and this voltage is then encoded as a number, this number is processed with others and then treated as if it is one of the 3 primary colors when constructing an image matrix to present to you via the phone's display. | |
| Oct 7, 2021 at 15:16 | answer | added | Solomon Slow | timeline score: 2 | |
| Oct 7, 2021 at 15:04 | comment | added | Solomon Slow | Re, "full spectrum image" FYI, Photographers sometimes use that phrase to mean one thing. Astronomers often use it to mean something different. | |
| Oct 7, 2021 at 13:15 | comment | added | Abdullah Ibn Fulan | Then how UV ? Also, even then how can I see the result ? | |
| Oct 7, 2021 at 13:13 | comment | added | Jon Custer | Because a silicon CMOS detector is sensitive to light in the near IR region. | |
| Oct 7, 2021 at 13:10 | comment | added | Abdullah Ibn Fulan | How that helps, @JonCuster ? | |
| Oct 7, 2021 at 13:09 | comment | added | Jon Custer | The silicon bandgap (1.12eV) corresponds to a wavelength of 1.1 microns. | |
| Oct 7, 2021 at 8:42 | history | edited | Abdullah Ibn Fulan | CC BY-SA 4.0 |
Added link
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| Oct 7, 2021 at 8:16 | comment | added | Filip Milovanović | "where the image show presence and intensity of the ray, [...] a grayscale image depending on intensity of the light" - to provide some context for the answer bellow; a digital color image is pretty much 3 grayscale images, one showing the intensity coming from a distribution of frequencies around the R part of the spectrum, one around the G part, and one around the B part. So what's captured is a simplified version of the input; the monitor then reproduces that simplified version back. | |
| Oct 7, 2021 at 6:34 | answer | added | Samuel | timeline score: 2 | |
| Oct 7, 2021 at 5:50 | history | edited | Urb | CC BY-SA 4.0 |
edited title
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| S Oct 7, 2021 at 5:01 | review | First questions | |||
| Oct 7, 2021 at 5:11 | |||||
| S Oct 7, 2021 at 5:01 | history | asked | Abdullah Ibn Fulan | CC BY-SA 4.0 |