OurBigBook About$ Donate
 Sign in Sign up

Focal length (f)

Ciro Santilli (@cirosantilli, 37) ... Elementary particle Photon Optics Optical component Lens Biconvex spherical lens
Updated 2025-07-16  1 By others on same topic  0 Discussions Create my own version
If you pass parallel light.
For a biconvex spherical lens, it is given by:
f1​=n(R1​1​+R2​1​)
(1)
where:
  • n: f nidnex

 Ancestors (13)

  1. Biconvex spherical lens
  2. Lens
  3. Optical component
  4. Optics
  5. Photon
  6. Elementary particle
  7. Subatomic particle
  8. Standard Model
  9. Particle physics
  10. Physics
  11. Natural science
  12. Science
  13.  Home

 Incoming links (1)

  • Biconvex spherical lens

 View article source

 Discussion (0)

New discussion

There are no discussions about this article yet.

 Articles by others on the same topic (1)

Focal length by Wikipedia Bot 0
 View more
Focal length is a key concept in optics that refers to the distance between the lens or mirror and the point where parallel rays of light converge to a single point, known as the focal point. It is typically measured in millimeters (mm) and is a crucial parameter for both lenses and optical instruments, such as cameras and microscopes.
 Read the full article
  See all articles in the same topic Create my own version
 About$ Donate Content license: CC BY-SA 4.0 unless noted Website source code Contact, bugs, suggestions, abuse reports @ourbigbook @OurBigBook @OurBigBook