VPH Hyperspectral Imaging Transmission Gratings
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Gold Standard Gratings for Hyperspectral Imaging
High efficiency, low abberations
Since transmissive VPH gratings offer the optical designer many advantages, VPH gratings are widely considered the gold standard for high-performance hyperspectral imaging (HSI) systems, particularly for industrial and remote sensing applications.
Wasatch VPH gratings are more efficient and scatter much less than reflective ruled gratings whilst being more robust to handling vs surface relief gratings. Thereby enabling HSI instruments that are smaller in size, with lower aberration and easier to align. Online shop gratings are available or you can choose to collaborate with our expert team on OEM designs from 300–2500 nm.
Features & Benefits
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Exceptional first-order diffraction efficiency for greater sensitivity and faster imaging rates -
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Patented broad-bandwidth grating designs -
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Near-zero ghosting and scatter for reduced stray light -
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Low wavefront error for clearer images -
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Robust design for easy cleaning and handling -
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NIR imaging capability up to 2500 nm
Wasatch Photonics VPH gratings deliver superior efficiency and low-scatter performance for high-precision transmissive spectroscopy.
Typical Hyperspectral Imaging Grating Specifications
WP-250/1250-xx
WP-600/600-xx
WP-600/1550-xx
900–1800 nm
450–750 nm
450–650 nm
1300–1800 nm
≥ 80% at 633 nm
600 ± 0.5 lines/mm
9° @ 1250 nm
50.8 mm Ø x 6.0 mm
50.8 mm Ø x 6.0 mm
25.4 mm Ø x 3.0 mm
50.8 mm Ø x 6.0 mm
60–40 scratch-dig
AR Coating