LOTIS at completion of Collimator integration

R. M. Bell; G. C. Robins; C. Eugeni; G. Cuzner; S. B. Hutchison; S. H. Baily; B. Ceurden; J. Hagen; K. Kenagy; H. M. Martin; M. Tuell; M. Ward; S. C. West

doi:10.1117/12.791889

11 July 2008 LOTIS at completion of Collimator integration

R. M. Bell, G. C. Robins, C. Eugeni, G. Cuzner, S. B. Hutchison, S. H. Baily, B. Ceurden, J. Hagen, K. Kenagy, H. M. Martin, M. Tuell, M. Ward, S. C. West

Author Affiliations +

Proceedings Volume 7017, Modeling, Systems Engineering, and Project Management for Astronomy III; 70170D (2008) https://doi.org/10.1117/12.791889
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

The Large Optical Test and Integration Site (LOTIS) at the Lockheed Martin Space Systems Company in Sunnyvale, CA is designed for the verification and testing of optical systems. The facility consists of a large, temperature stabilized vacuum chamber that also functions as a class 10k cleanroom. Within this chamber and atop an advanced vibration-isolation bench are the 6.5 meter diameter LOTIS Collimator and Scene Generator, LOTIS alignment and support equipment. The optical payloads are also placed on the vibration bench in the chamber for testing. The Scene Generator is attached to the Collimator forming the Scene Projection System (SPS) and this system is designed to operate in both air and vacuum, providing test imagery in an adaptable suite of visible/near infrared (VNIR) and midwave infrared (MWIR) point sources, and combined bandwidth visible-through-MWIR point sources, for testing of large aperture optical payloads. The heart of the SPS is the LOTIS Collimator, a 6.5m f/15 telescope, which projects scenes with wavefront errors <85 nm rms out to a ±0.75 mrad field of view (FOV). Using field lenses, performance can be extended to a maximum field of view of ±3.2 mrad. The LOTIS Collimator incorporates an extensive integrated wavefront sensing and control system to verify the performance of the system, and to optimize its actively controlled primary mirror surface and overall alignment. Using these optical test assets allows both integrated component and system level optical testing of electro-optical (EO) devices by providing realistic scene content. LOTIS is scheduled to achieve initial operational capability in 2008.

Citation Download Citation

R. M. Bell, G. C. Robins, C. Eugeni, G. Cuzner, S. B. Hutchison, S. H. Baily, B. Ceurden, J. Hagen, K. Kenagy, H. M. Martin, M. Tuell, M. Ward, and S. C. West "LOTIS at completion of Collimator integration", Proc. SPIE 7017, Modeling, Systems Engineering, and Project Management for Astronomy III, 70170D (11 July 2008); https://doi.org/10.1117/12.791889

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