NIRI Components

• Cameras
• Imaging Filters
• Grisms and Order-sorting Filters
• Slits
• InSb Detector Array
  • Characteristics and Read Modes
  • Efficient, Minimum, and Background-limited Exposure Times
  • Exposure Time Limits due to Array Saturation
• Wavefront sensors (WFSs) and guide stars
  • The Peripheral WFS (PWFS) is required for the f/6 camera and can be used with f/14 and f/32 cameras.
  • The On-Instrument WFS (OIWFS), only usable with the f/14 and f/32 cameras, is not available.
  • OIWFS detector

An optomechanical layout shows the NIRI light path and photos of many components.

Last update July 6, 2003; Joe Jensen and Tom Geballe