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SPECTROGRAPH

Photonics Spectra
Oct 2007
Verity Instruments Inc.Request Info
 
Verity-Instruments_SD1024F.gifThe SD1024F, released by Verity Instruments Inc., is an RoHS-compliant spectrograph for semiconductor process applications. It has a 200- to 800-nm optical system that uses a 1024-element scientific-grade thermoelectrically cooled 1024 × 128-pixel CCD. Benefits include ultraviolet response down to 200 nm, stability against degradation under ultraviolet exposure, high sensitivity, a wide dynamic range and good output linearity. Resolution is <2 nm, slit width is 25 μm, and operating temperature range is from 0 to 40 °C. The system runs on a 95- to 250-VAC supply at 50 to 60 Hz.


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GLOSSARY
spectrograph
An optical instrument for forming the spectrum of a light source and recording it on a film. The dispersing medium may be a prism or a diffraction grating. A concave grating requires no other means to form a sharp image of the slit on the film, but a plane grating or a prism requires auxiliary lenses or concave mirrors to act as image-forming means in addition to the dispersing element. Refracting prisms can be used only in parallel light, so a collimating lens is required before the prism and...
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