CCD Surface Measuring Device

CCD Surface Measuring Device
A new device for planarity measurement of CCDs and mosaics of CCDs

Stefan Ströbele

Introduction

Modern high quality CCD detectors are produced with 2048 x 4096 pixels (pixelsize = 15 mm). Astronomers desire even larger detectors for their instruments. To achieve larger focal planes, several CCDs are combined to a mosaic, such as the 8192 x 8192 pixel mosaic used in ESO's Wide Field Imager and the 16384 x 16384 mosaic CCD in OMEGACAM. Within an astronomical instrument the light has to be in focus on all of these CCD detectors, requiring that all CCDs of the mosaic must be mounted to within 30 microns of a flat plane.

The CCD Surface Measuring Device is measuring the alignment of the VIMOS-CCD.
[High resolution view, 597 kB]

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CCD Surface Measuring Device

Stefan Ströbele

See also for the CCD Surface Measuring Device - User manual and the Diploma thesis by S. Stroebele

Table of contents

Introduction

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