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Proceedings Paper

A bonded precision optical assembly using potassium hydroxide
Author(s): Paul V. Mammini
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Paper Abstract

The pupil imaging lens (PIL) assembly is one component within the NIRCam instrument, which is the primary imaging instrument on the James Webb Space Telescope (JWST). The main purpose of the PIL assembly is to form an image of the eighteen primary mirror segments of the JWST onto the NIRCam focal plane arrays (FPAs). NIRCam is the only instrument on the JWST observatory with wave front sensing (WFS) capability, and will use the PIL in conjunction with the WFS measurements1. The purpose of this paper is to introduce the audience to a monolithic PIL assembly created from five unique lenses mounted to an optical baseplate. The lenses are assembled using a direct bonding method, with the aid of a diluted potassium hydroxide solution. Described in this paper is a simple, yet precise method for aligning and assembling the PIL optics.

Paper Details

Date Published: 21 August 2009
PDF: 10 pages
Proc. SPIE 7425, Optical Materials and Structures Technologies IV, 74250O (21 August 2009); doi: 10.1117/12.826260
Show Author Affiliations
Paul V. Mammini, Lockheed Martin Space Systems Co. (United States)

Published in SPIE Proceedings Vol. 7425:
Optical Materials and Structures Technologies IV
Joseph L. Robichaud; William A. Goodman, Editor(s)

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