Thick lens chromatic effective focal length variation versus bending

Scott Sparrold

doi:10.1117/12.2292745

27 November 2017 Thick lens chromatic effective focal length variation versus bending

Scott Sparrold

Proceedings Volume 10590, International Optical Design Conference 2017; 105900C (2017) https://doi.org/10.1117/12.2292745
Event: International Optical Design Conference - IODC 2017, 2017, Denver, United States

Abstract

Longitudinal chromatic aberration (LCA) can limit the optical performance in refractive optical systems. Understanding a singlet’s chromatic change of effective focal leads to insights and methods to control LCA. Long established, first order theory, shows the chromatic change in focal length for a zero thickness lens is proportional to it's focal length divided by the lens V number or inverse dispersion. This work presents the derivation of an equation for a thick singlet's chromatic change in effective focal length as a function of center thickness, t, dispersion, V, index of refraction, n, and the Coddington shape factor, K. A plot of bending versus chromatic focal length variation is presented. Lens thickness does not influence chromatic variation of effective focal length for a convex plano or plano convex lens. A lens's center thickness'influence on chromatic focal length variation is more pronounced for lower indices of refraction.

Citation Download Citation

Scott Sparrold "Thick lens chromatic effective focal length variation versus bending", Proc. SPIE 10590, International Optical Design Conference 2017, 105900C (27 November 2017); https://doi.org/10.1117/12.2292745

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available