Abstract
The Diffuse Infrared Background Experiment is a ten-band filter photometer on the NASA Cosmic Background Explorer. The entire telescope will operate at 2 K. Extragalactic infrared radiation and diffuse galactic radiation in the 1–300-μm wavelength range will be measured. Polarization measurements will also be made for the 1–3.5-μm range. The Diffuse Infrared Background Experiment is a well-baffled unobscured off-axis Gregorian telescope with multiple stops to provide a high level of rejection of both scattered and diffracted radiation. Additional optics are used so that each of three detector assemblies and a tuning fork chopper share a pupil image. The optics consist of an off-axis parabolic mirror, three off-axis elliptical mirrors, a general asphere, a fold flat, and a reflective chopper mirror. A breadboard optics module was constructed and used as a test bed to determine optical alignment procedures for the flight unit, to measure cryo-induced misalignments of the optical system, and to measure cryo-induced misalignments due to cryogenic vibration. Methods used to assemble the breadboard optics module and results of the environmental testing are reported in this paper.
© 1985 Optical Society of America
PDF ArticleMore Like This
Aden B. Meinel and Marjorie P. Meinel
FB1 OSA Annual Meeting (FIO) 1985
I. Takano, T. Iwakami, I. Mito, and Y. Tashiro
WB5 Optical Fiber Communication Conference (OFC) 1985
S.K. Korotky, G. Eisenstein, A.H. Gnauck, B.L. Kasper, J.J. Veselka, R.C. Alfernessg, L.L. Buhl, C.A. Burrus, T.C.D. Huo, L.W. Stulz, K. Ciemiecki Nelson, L.G. Cohen, R.W. Dawson, and J.C. Campbell
PD1 Optical Fiber Communication Conference (OFC) 1985