Colour neutral antireflection coatings for strongly curved lenses using organic nanostructures as low-n template

P. Munzert; H. Knopf; F. Rickelt; U. Schulz

doi:10.1117/12.2311295

5 June 2018 Colour neutral antireflection coatings for strongly curved lenses using organic nanostructures as low-n template

P. Munzert, H. Knopf, F. Rickelt, U. Schulz

Author Affiliations +

Proceedings Volume 10691, Advances in Optical Thin Films VI; 106910Z (2018) https://doi.org/10.1117/12.2311295
Event: SPIE Optical Systems Design, 2018, Frankfurt, Germany

Abstract

To effectively improve color neutrality of antireflection (AR) coatings, a layer with a very low refractive index (n < 1,3) must be used as the top layer. However, solid materials with such a low refractive index (n) does not exist. The deposition of low molecule weight organic materials as compact films, and a subsequent plasma etching procedure on these films, offered the possibility to produce a nanostructured layer with a very low refractive index as top layer for an antireflection coating. Strongly curved aspheric lenses were coated with such a super-broadband AR design (ARplas2) and the antireflection performance was measured at different locations on the lens. An average reflection < 0,25 % over the full visible wavelength range was measured even in the outermost region of the curvature.

Citation Download Citation

P. Munzert, H. Knopf, F. Rickelt, and U. Schulz "Colour neutral antireflection coatings for strongly curved lenses using organic nanostructures as low-n template", Proc. SPIE 10691, Advances in Optical Thin Films VI, 106910Z (5 June 2018); https://doi.org/10.1117/12.2311295

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