Overview of NIRCam instrument components
The NIRCam science observing modes at 0.6–5.0 μm include imaging, coronagraphy, and grism wide field slitless spectroscopy, as well as specialized time-series monitoring modes. To support these modes, as well as wavefront sensing for mirror alignment, information on the NIRCam instrument hardware is available in these articles:
For wavefront sensing and mirror alignment, additional optical elements are available in the pupil and filter wheels.
The two NIRCam modules contain nearly identical sets of all of these elements.