4 ms·
Think of it as the body of a camera cracking. Some amount of light will leak in and expose the film/sensors. Just depends on how much.
by beerandt 5y ago
Think of it as the body of a camera cracking. Some amount of light will leak in and expose the film/sensors. Just depends on how much.
- jacquesm 5y agoThat analogy only works for a small part, the light would not do damage if it didn't fall on the film or sensors directly or through reflection, whereas with IR it doesn't really matter where it falls on the telescope it will cause the whole thing to warm up and the rejection mechanisms can only cope with so much of it.