Timeline for Unexpected rainbow in window
Current License: CC BY-SA 4.0
5 events
when toggle format | what | by | license | comment | |
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Jul 13, 2023 at 14:08 | comment | added | AXensen | In my opinion that glass looks way too flat and thin to be producing such a dramatic rainbow from prism/refraction effects. I think some kind of thin-film interference effect is more likely but from the details here I cant really figure out what exactly it is. | |
Jul 13, 2023 at 13:23 | comment | added | Brad Thiessen | To answer your question, it happens with all light but it's easier to see at night. The light in the picture is a street lamp. | |
Jul 13, 2023 at 13:21 | comment | added | Brad Thiessen | I forgot to mention, there's a film over the window which causes the rainbow. Either way, I would expect the colours to be reversed. | |
Jul 13, 2023 at 12:53 | comment | added | Ruslan | "assume that the cut glass is somehow circular in design" — I think the circular pattern is not due to the design of the glass, but rather due to the geometry of scattering, similar to how random scratches create a circular pattern on reflection of bright light, as in this photo. (This particular phenomenon with scratches is discussed in this thread.) | |
Jul 13, 2023 at 9:49 | history | answered | ondas | CC BY-SA 4.0 |