Public domain
History of Hubble Space Telescope (HST)
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This drawing illustrates Hubble Space Telescope's (HST's), Faint Object Camera (FOC). The FOC reflects light down one of two optical pathways. The light enters a detector after passing through filters or through devices that can block out light from bright objects. Light from bright objects is blocked out to enable the FOC to see background images. The detector intensifies the image, then records it much like a television camera.
NASA Image and Video Library’s own descriptionCredit lineHistory of Hubble Space Telescope (HST). NASA/MSFC, 1981-01-01. Public domain. ID: 8113713.