Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A combination of diffraction grating and prism used to obtain spectra from different parts of an image

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From grating + prism

Examples

  • Swift's Ultraviolet / Optical Telescope includes a device called a grism that can separate wavelengths in ultraviolet light in much the same way as a prism spreads sunlight into colors.

    PhysOrg.com - latest science and technology news stories

  • Light would come in from 640 quasars or stars or galaxies, be passed on through 640 optical fibers, sent to a combination of a diffraction grating and a prism—called a grism—which could fan the light out into 640 little spectral rainbows, which would register on the same-sized CCDs as in Jim’s camera.

    A Grand and Bold Thing

  • Light would come in from 640 quasars or stars or galaxies, be passed on through 640 optical fibers, sent to a combination of a diffraction grating and a prism—called a grism—which could fan the light out into 640 little spectral rainbows, which would register on the same-sized CCDs as in Jim’s camera.

    A Grand and Bold Thing

  • Light would come in from 640 quasars or stars or galaxies, be passed on through 640 optical fibers, sent to a combination of a diffraction grating and a prism—called a grism—which could fan the light out into 640 little spectral rainbows, which would register on the same-sized CCDs as in Jim’s camera.

    A Grand and Bold Thing

  • Light would come in from 640 quasars or stars or galaxies, be passed on through 640 optical fibers, sent to a combination of a diffraction grating and a prism—called a grism—which could fan the light out into 640 little spectral rainbows, which would register on the same-sized CCDs as in Jim’s camera.

    A Grand and Bold Thing

  • The G102 grism on WFC3 was designed to extend this capability to search for

    SpaceRef Top Stories

  • WFC3 camera with G141 grism provides the only way to confirm this record high-z cluster and measure its redshift from spectral breaks typical of old stellar populations.

    SpaceRef Top Stories

  • We propose to obtain deep WFC3+G141 grism observations to spectroscopically confirm a remarkable z

    SpaceRef Top Stories

  • The G102 grism on WFC3 was designed to extend this capability to search for Ly-alpha emission from the first galaxies.

    SpaceRef Top Stories

  • The G102 grism on WFC3 was designed to extend this capability to search for Ly-alpha emission from the first galaxies.

    SpaceRef Top Stories

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