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Miniature visible OEM spectrometer

Ibsen Photonics has launched the compact PEBBLE VIS OEM spectrometer, which has a size of 17 × 15 × 8 mm with high resolution and sensitivity as well as environmental ruggedness. The PEBBLE VIS is based on the same diffraction grating technology used in all other Ibsen spectrometers, which enables the PEBBLE to be manufactured in high quantities with very small unit-to-unit performance variation. The core of the PEBBLE is a highly efficient transmission grating manufactured in-house. Furthermore, the PEBBLE utilises a new, fast and sensitive CMOS detector array with 256 pixels. When combined with a large numerical aperture of 0.22 (low f-number of f/2.2) the PEBBLE provides high sensitivity for a spectrometer of its size. A key benefit of using a transmission grating inside the PEBBLE is a high resolution of 6 nm across the full 380–850 nm wavelength range.

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