Mirror telescope for long linear detector arrays

Michael Owen Lidwell

doi:10.1117/12.328541

29 October 1998 Mirror telescope for long linear detector arrays

Michael Owen Lidwell

Proceedings Volume 3429, Current Developments in Optical Design and Engineering VII; (1998) https://doi.org/10.1117/12.328541
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Detector developments raise the possibility of achieving high resolution images, employing linear arrays of over 3000 pixels, in any of the atmospheric windows extending from the visual to the far infra-red. Simultaneous capture with fusion of the VNIR, MWIR & LWIR images requires a reflective optical system. Reasons are given for the choice of a 4 mirror anastigmatic telescope for the basic imaging system which is combined with another 4 mirror afocal telescope to cover a 60 degree field in wide angle mode. To permit ground based trials, a mirror scanner covers a 40 degree field in either mode. Choice of a telescope with projected entrance pupil was essential for a compact system. Focus and mode changes are all made by the movement of flat mirrors. A particular arrangement of these folds contributes towards a rational structure with the mirror groups mounted on optical axes perpendicular to a common base. The methods used to ensure dimensional stability including the design and mounting of the beamsplitters are described.

Citation Download Citation

Michael Owen Lidwell "Mirror telescope for long linear detector arrays", Proc. SPIE 3429, Current Developments in Optical Design and Engineering VII, (29 October 1998); https://doi.org/10.1117/12.328541

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