OSA's Digital Library

Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 6 — Jun. 1, 2010
  • pp: 569–572

Stray light analysis of an on-axis three-reflection space optical system

Baolin Du, Lin Li, and Yifan Huang  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 6, pp. 569-572 (2010)


View Full Text Article

Acrobat PDF (630 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

Stray light analysis of a three-mirror spatial optical system is presented. The entrance pupil diameter (EPD) of the system is 320 mm, the e®ective focal length (EFL) is 2809 mm, and the field of view (FOV) is 1°×0.5°. Its walls are coated with extinction paint (the absorption coeffcient of which is 97%). The point source transmittance (PST) of the system is thus reduced by up to two orders of magnitude. Moreover, this technique makes it feasible to block the stray light coming from outside of the FOV by increasing the outer baffle length of the system. Adding an inner baffle to both the primary and the secondary mirrors helps not only to block the stray light coming from outside of the FOV but also to decrease the length of the outer baffle. Simulation results show that the PST values are less than 10<sup>-10</sup> when the off-axis angle is larger than 9°. The stray light is also suppressed effectively by placing a glare stop at the first imaging plane of Cassegrain telescope. It is surprising that the PST value is 10<sup>-14</sup> when the off-axis angle is 2° with the placement of glare stop at the first image plane.

© 2010 Chinese Optics Letters

OCIS Codes
(290.2200) Scattering : Extinction
(290.1483) Scattering : BSDF, BRDF, and BTDF
(290.2648) Scattering : Stray light
(080.4035) Geometric optics : Mirror system design

Citation
Baolin Du, Lin Li, and Yifan Huang, "Stray light analysis of an on-axis three-reflection space optical system," Chin. Opt. Lett. 8, 569-572 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-6-569

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited