Abstract

A 10-cm chopping secondary for operation in the cryovacuum has been developed. It is momentum compensated and allows square wave modulation of up to 20 Hz and a beam separation of up to several minutes of arc in the sky. The low heat dissipation of 5 mW at a temperature of 4.2 K makes the chopper suitable for a liquid helium-cooled space telescope.

© 1986 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Design of an adaptive secondary mirror: a global approach

Guido Brusa and Ciro Del Vecchio
Appl. Opt. 37(21) 4656-4662 (1998)

Large chopping secondary mirror for the 15-m submillimeter James Clerk Maxwell telescope

Herman van de Stadt and Jaap Verkerk
Appl. Opt. 26(16) 3446-3454 (1987)

Simple Cassegrain scanning system for infrared astronomy

Jerome Apt, Richard Goody, and Lawrence Mertz
Appl. Opt. 19(10) 1590-1592 (1980)

References

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
Login to access OSA Member Subscription

Cited By

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
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files 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
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables 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
Login to access OSA Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations 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
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics 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
Login to access OSA Member Subscription