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physical object > artifact > device > instrument > optical device > wavefront modifier > spectrograph dispersing element > diffraction grating > grism

grism
subject			fact

grism	has definition This is a right-angled glass prism with a transmission diffraction grating deposited on the hypotenuse surface. The spectrum produced by the grating is deflected by the prism to remain on the optical axis and the apex angle of the prism is chosen to get a certain wavelength in the center of the detector. Grisms can be placed in a filter wheel.
	is a kind of diffraction grating
spectrograph dispersing element	has dispersion
	has wavefront modification wavelength
instrument	has operator
artifact	has creator
	has creation date
	has purpose
	has owner
physical object	has location or center of gravity
	has angular momentum
	has mass
	has velocity
	has momentum
	has temperature
	has volume
	has extent
	has material

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