Princeton Instruments, which joined forces several years ago with Acton Research — an elite designer and manufacturer of renowned monochromators and spectrographs as well as high-precision optical coatings — is the world's leading designer and manufacturer of high-performance light-detection systems for spectroscopy, imaging, and x-ray applications. PI has defined the state of the art in CCD, EMCCD, ICCD, emICCD, and InGaAs camera technologies since the early 1980s.

Key innovations from Princeton Instruments have included the industry’s first spectroscopy camera to feature a photodiode array, the first spectroscopy camera to use a CCD, and the first high-performance gated, intensified CCD camera.NIRvana InGaAs IR camera

In addition to breaking new ground in the field of spectroscopy over the years, we have designed CCD cameras with the highest sensitivity available for scientific imaging applications (~2 e- rms read noise with >90% quantum efficiency). For high-speed, low-light applications, we offer unrivaled EMCCD, ICCD, and emICCD camera technologies. Researchers working in the NIR and SWIR spectral regions can benefit from our latest InGaAs cameras, which utilize highly advanced two-dimensional focal plane arrays.

Princeton Instruments also continues to set new technological standards with our multi-grating monochromators and spectrographs. Leading-edge instrumentation includes IsoPlane imaging spectrographs, LS Series lens spectrographs, TriVista triple-spectrograph systems, and SpectraPro imaging spectrographs.

High-precision mirrors, filters, and coatings from Acton Optics & Coatings, whose history of innovative design and manufacturing processes began in the early 1960s, are also available from Princeton Instruments.

Here are just a few of our many impressive technological milestones:

1961 — Acton Research Corporation (ARC) is founded in Massachusetts. Begins providing high-performance coatings for analytical instruments and burgeoning U.S. space program.
1970s — ARC works with excimer laser developers to produce high-power mirror coatings
1978 — ARC begins manufacturing VUV/UV spectrometers for government and research labs.
1981 — Princeton Instruments (PI) is founded in New Jersey. Manufactures and sells high-performance, cooled-array light detectors.
1983 — ARC introduces grazing-incidence spectrometers for soft x-ray/EUV applications.
Mid-1980s — ARC begins working with PI to provide superior spectroscopic detection systems.
1987 — ARC introduces world-renowned SpectraPro triple-grating monochromators and spectrographs.
1992 — PI introduces soft x-ray CCD cameras.
1995 — PI introduces world’s first scientific-grade gated ICCD camera.
1997 — PI introduces I-PentaMAX ICCD camera, forever revolutionizing low-light-level, single-molecule fluorescence applications.
1998 — PI introduces PI-MAX, the first ICCD camera to have a built-in delay generator for precise timing synchronization.
2000 — PI introduces world’s smallest in-vacuum CCD cameras for direct detection of soft x-rays.
2002 — PI introduces world’s first scientific-grade microscopy EMCCD camera.
2003 — PI offers lifetime vacuum guarantee.
2004 — PI introduces PIXIS CCD camera, providing ultradeep cooling and low noise.
2005 — PI introduces OMA V, the world's first scientific-grade 2D InGaAs camera for low-light NIR detection.
2007 — Princeton Instruments and Acton Research combine under the Princeton Instruments banner.
2009 — PI introduces ProEM professional-grade EMCCD camera with GigE interface.
2010 — PI introduces LightField, a highly intuitive 64-bit acquisition software package that affords users unprecedented experimental control for scientific and industrial applications.
2012 — PI introduces PI-MAX4 ICCD cameras, which offer <500 picosecond gating, RF modulation capabilities, and complete control via LightField software.
2013 — PI introduces IsoPlane, an imaging spectrograph whose aberration-reduced design greatly diminishes astigmatism and coma at all wavelengths across the entire focal plane.
2014 — PI introduces ProEM-HS, the world’s fastest professional-grade EMCCD cameras.
2015 — PI introduces a liquid-nitrogen–cooled camera for its NIRvana InGaAs detector series, featuring a specially designed FPA cooled to –190°C that delivers unprecedented NIR/SWIR sensitivity.


History of Princeton Instruments
Princeton Instruments and Acton Research Corporation combined to provide researchers and OEM customers the highest quality scientific cameras, spectrometers and optical components.