Home > Terms > English, UK (UE) > F-Number
F-Number
The focal length of lens divided by its usable diameter. In the case of a laser the usable diameter is the diameter of the laser beam or a smaller aperture which restricts a laser beam.
This is auto-generated content. You can help to improve it.
0
0
Improve it
- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Industrial machinery
- Category: Laser equipment
- Company:
- Product:
- Acronym-Abbreviation:
Other Languages:
Member comments
Terms in the News
Featured Terms
Industry/Domain: Environment Category: Pollution
Oil spill
Oil spill is a form of pollution that refers to the accidental release of liquid petroleum into the environment due to human activity. One common form ...
Contributor
Featured blossaries
Browers Terms By Category
- Hats & caps(21)
- Scarves(8)
- Gloves & mittens(8)
- Hair accessories(6)
Fashion accessories(43) Terms
- Misc restaurant(209)
- Culinary(115)
- Fine dining(63)
- Diners(23)
- Coffehouses(19)
- Cafeterias(12)
Restaurants(470) Terms
- Medicine(68317)
- Cancer treatment(5553)
- Diseases(4078)
- Genetic disorders(1982)
- Managed care(1521)
- Optometry(1202)
Health care(89875) Terms
- Characters(952)
- Fighting games(83)
- Shmups(77)
- General gaming(72)
- MMO(70)
- Rhythm games(62)
Video games(1405) Terms
- Material physics(1710)
- Metallurgy(891)
- Corrosion engineering(646)
- Magnetics(82)
- Impact testing(1)