focal length
focal length noun: a measure of how strongly an optical system converges or diverges light, the inverse of optical power. In the simple case of a single convex lens, it is the distance along the optical axis from the principal plane of the lens to the lens's focal point (where, for instance, the film would be placed in a camera). For more complex or multi-element optical systems, focal length need not correspond to any obvious measurable physical distance.
Noun
focal length (plural focal lengths)
- A measure of how strongly an optical system converges or diverges light, the inverse of optical power. In the simple case of a single convex lens, it is the distance along the optical axis from the principal plane of the lens to the lens's focal point (where, for instance, the film would be placed in a camera). For more complex or multi-element optical systems, focal length need not correspond to any obvious measurable physical distance.
focal length meaning in Tamil, Tagalog and Indonesian
focal length in Tamil
- குவியத் தூரம், குவியத்தூரம், குவியத் தொலைவு, குவியத்தொலை, குவியநீளம்
focal length in Tagalog
- distance
- tingubing haba
focal length in Indonesian
- distance
- jarak pumpun, jarak fokus
Forms of focal length
| plural | focal lengths |
|---|
Words formed from focal length
Questions about focal length
- What does focal length mean?
- Focal length means a measure of how strongly an optical system converges or diverges light, the inverse of optical power. In the simple case of a single convex lens, it is the distance along the optical axis from the principal plane of the lens to the lens's focal point (where, for instance, the film would be placed in a camera). For more complex or multi-element optical systems, focal length need not correspond to any obvious measurable physical distance.
- What is focal length in Tamil?
- Focal length in Tamil is குவியத் தூரம், குவியத்தூரம், குவியத் தொலைவு. See Focal length meaning in Tamil.
- What part of speech is focal length?
- Focal length is a noun.
- What is the plural of focal length?
- The plural of focal length is focal lengths.
Words near focal length in the dictionary
Source and license
Adapted from Wiktionary: focal length (page history and authors); focal length (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “focal length.” Word.ws, https://word.ws/focal_length. Based on Wiktionary, CC BY-SA 4.0.