Imaging

A camera is a photographic device designed to record or transmit successive photographic images in order to reproduce the impression of movement for cinema, television, research, remote surveillance, industrial and medical imaging, or for other applications, professional or domestic.

 

The first cameras were developed following the invention and marketing of photographic film in 1889. Since then, camera manufacturers have constantly improved these products to offer ever higher performance (dimensions, image quality, sensitivity, dynamics, etc.).

 

Depending on the field of application and the various advances in research, visible imaging has been extended to other spectral/wavelength domains, with the appearance of new types of sensors: InGaAs, InSb, MCT, microbolometer...

 

Within this framework, PHOT'innov collaborates with several partners in order to propose infrared, cooled visible (EMCCD), and UV cameras but also imaging solutions coupled with spectrometry solutions (multispectral and hyperspectral cameras):

Our SWIR-MWIR-LWIR Cameras

Infrared camera and thermal camera should not be confused, as they do not have the same field of application. Indeed, both types of cameras operate on the same principle, i.e. the recording of infrared radiation emitted by bodies and objects. However, an infrared camera is sensitive to waves emitted with wavelengths of the order of microns (10-6), while a thermal camera is sensitive to waves emitted with wavelengths of the order of ten microns (10-5). These latter waves (10-5), sometimes called heat waves, are directly related to the temperature of the body or object that produces them.

  • SWIR Cameras

    SWIR Cameras (13)

    SWIR infrared cameras for your applications between 400 and 2500nm - InGaAs and T2SL detectors

SWIR Cameras The operation of NIR or SWIR cameras is similar to that of visible cameras. Because photons are reflected or absorbed by an object, they provide the intensive contrast necessary for high-resolution imaging.

SWIR line scan cameras A camera is said to be linear when its sensor has a dimension of 1xn pixels. Linear cameras are widely used in industrial vision since it allows the line-by-line acquisition of an object passing in front of the camera on a conveyor belt for example.

  • MWIR Cameras

    MWIR Cameras (16)

    MWIR infrared cameras for your imaging applications between 1 and 6um - InSb-MCT detectors

Thermography Cameras / MWIR In the MWIR and LWIR (thermal) infrared bands, the infrared signal comes mainly from the clean emission of objects. It is therefore directly related to their temperature, which allows infrared thermography. The sensors generally used in the MWIR band (InSb or MCT) are cooled by Stirling engine and have very good sensitivities.

Thermal Imaging Cameras / LWIR Thermal cameras incorporate uncooled microbolometers. They are compact and allow precise temperature measurements over short periods of time.

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Hyperspectral & Multispectral Imaging

Hyperspectral cameras Hyperspectral Imaging: Hyperspectral imaging is a technique combining imaging and spectroscopy where each image is taken for a narrow band of the electromagnetic spectrum. For example, the human eye sees light in three bands (red, green, and blue) while hyperspectral imaging allows us to "see" in a very large number of bands typically ranging from the visible to the near infrared. The term hyperspectral refers to the number of bands that can be taken across the electromagnetic spectrum. There are currently two hyperspectral imaging technologies available:

Hyperspectral pushbroom cameras The principle of pushbroom acquisition is to acquire the spectrum line by line and scan in a perpendicular direction in order to reconstruct the hyperspectral cube.

  • Snapshot hyperspectral cameras

    Snapshot hyperspectral cameras (4)

    Abstract
    What is the advantage of hyperspectral video cameras over regular hyperspectral imagers? What is the technical difference of this new kind of technology and how does it improve your application? We try to answer this and connected questions in the following article.

    Introduction
    What is the advantage of hyperspectral snapshot imagers
    The core advantage of hyperspectral snapshot imagers is the efficiency of usage of the incident light. Ordinary hyperspectral imagers have one thing in common. They use a small fraction of the incident light for the image generation.

    On the one hand we have push-broom sensors, which restrict the light throughput of the objective of the camera by a micrometer-thin slit. On the other hand we see tunable filter devices, which only transmit a few nm of the full incident spectra onto the sensor. In either way, most of the incident light is blocked geometrically or is filtered out.

    Snapshot imaging systems transmit the full spectrum of the light for the full image size. Thus, these kind of spectrometers capture a three dimensional dataset [x, y, lambda] in one sensor readout.

Hyperspectral snapshot cameras The core advantage of hyperspectral snapshot imagers is the efficiency of usage of the incident light. Ordinary hyperspectral imagers have one thing in common. They use a small fraction of the incident light for the image generation.

  • Multispectral cameras

    Multispectral cameras (4)

    Simultaneously study the image and spectrum of your samples using our multispectral imaging solutions in the visible and near infrared range.

Multispectral cameras Compared to hyperspectral imaging, multispectral imaging acquires discrete bands of the spectrum. Typically multispectral solutions allow the acquisition of up to 20 spectral bands. Multispectral cameras are generally more compact, lighter and less expensive than hyperspectral cameras.

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EMCCD cameras

  • EMCCD cameras

    EMCCD cameras (2)

    Come and discover the ultra-sensitive EMCCD cameras allowing you to obtain unrivalled sensitivities and image quality.

EMCCD cameras Low-flux imaging occurs in many fields of study, from biomedical research to astronomy. In these applications, photons are scarce, and the signal reaching the camera may be weak enough to blend into the background noise. A strategy to recover the photon signal is more than necessary. EMCCD cameras offer the ultimate sensitivity for observing the darkest scenes by becoming a real-time wide-field photon counting imaging solution.

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UV Cameras

  • UV Cameras

    UV Cameras (2)

    Discover our sCMOS, back illuminated UV imaging solutions that offer very good sensitivity up to 200nm and a high quality signal-to-noise ratio.

UV Cameras sCMOS (Scientific Complementary metal-oxide-semiconductor) technology is based on design and manufacturing techniques for next-generation CMOS silicon sensors. sCMOS sensors offer extremely low noise, high frame rates, wide dynamic range, high quantum efficiency, high resolution and a wide field of view. This recent technology, which appeared in 2009, is used here by our partner to offer high-performance UV cameras.

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With over 40 years of cumulative experience in the field of optics, we strive to provide our customers with the advice and expertise on the solutions we offer to best meet their needs. Below you will find technical articles related to the infrared, hyperspectral, multispectral, visible and UV imaging solutions we offer.

Our partners and customers regularly write application notes. PHOT'Innov strives to bring these together in order to offer you concrete examples of the use of our solutions in infrared, hyperspectral, multispectral, visible and UV imaging.