Sie suchten nach: grating (Holländisch - Englisch)

moving grating-sensor
moving grating sensor

there is also only one grating, a high transmission volume phase holographic grating.
the throughput is kept high by using high quantum efficiency ccds.

* "the use of long focus concave gratings at eclipses", "publications of the astronomical society of the pacific", vol.
* "the vacuum spark spectrum of calcium", 1924.