- #1
somega
- 32
- 2
On the photo you can see:
Red 1: the edge is very sharp (as expected)
Red 2: the edge is very blurry (but why?)
Same for green.
You can also see (Red 2) that the blurry edge is yellow.
What is this effect called?
Why is the edge of the light from my flashlight beam so blurry?
In summary, the photo shows a sharp edge for red 1 and a blurry edge for red 2, with the same effect seen in green. Additionally, the blurry edge for red 2 has a yellow tint. The cause of this effect is the light source not being a single point, resulting in chromatic aberration.
On the photo you can see:
Red 1: the edge is very sharp (as expected)
Red 2: the edge is very blurry (but why?)
Same for green.
You can also see (Red 2) that the blurry edge is yellow.
What is this effect called?
- #2
A.T.
Science Advisor
- 12,277
- 3,471
Green: Because the light source is not a single point, the shadows are blurry.somega said:
Red: Same as green but also:
https://en.wikipedia.org/wiki/Chromatic_aberration
1. Why does the edge of the light from my flashlight beam appear blurry?
The edge of the light from a flashlight beam appears blurry due to the phenomenon known as diffraction. This occurs when light waves encounter an obstacle, such as the edges of the flashlight lens, causing them to spread out and create a fuzzy edge.
2. Can the type of flashlight affect the blurriness of the beam's edge?
Yes, the type of flashlight can affect the blurriness of the beam's edge. Flashlights with larger lenses or reflectors tend to produce a less blurry beam edge compared to smaller flashlights.
3. Is there a way to reduce the blurriness of the flashlight beam's edge?
One way to reduce the blurriness of the flashlight beam's edge is by using a flashlight with a larger lens or reflector. Additionally, using a flashlight with a higher quality lens or reflector can also help to reduce the blurriness.
4. Does the distance from the flashlight affect the blurriness of the beam's edge?
Yes, the distance from the flashlight can affect the blurriness of the beam's edge. The farther away the object is from the flashlight, the more diffraction will occur, resulting in a blurrier edge.
5. Can the blurriness of the beam's edge be a sign of a faulty flashlight?
While a blurry beam's edge can be a sign of a low-quality or damaged flashlight, it is not always an indication of a faulty flashlight. As mentioned before, the size and quality of the lens or reflector can also play a role in the blurriness of the beam's edge.
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