Solar cell technology cameras

A new camera range from Stemmer Imaging uses a sensor, based on solar cell technology, to allow imaging from scenes which simultaneously contain both very light and very dark areas. The company says this makes them ideally suited to use in environments with a very high dynamic range, or where there are strong and unpredictable brightness fluctuations. The new FX4 HDR (High Dynamic Range) sensor produces a logarithmic signal output. This enables fine differences in brightness to be imaged even in very bright
February 2, 2012 Read time: 2 mins
The image shows a 40W light bulb, image on the left with a conventional CCD sensor and on the right with the FX4 HDR sensor
A new camera range from 822 Stemmer Imaging uses a sensor, based on solar cell technology, to allow imaging from scenes which simultaneously contain both very light and very dark areas. The company says this makes them ideally suited to use in environments with a very high dynamic range, or where there are strong and unpredictable brightness fluctuations. The new FX4 HDR (High Dynamic Range) sensor produces a logarithmic signal output. This enables fine differences in brightness to be imaged even in very bright scenes, without saturation.

 The FX4 HDR sensor features a patented pixel structure that provides a truly logarithmic output with effective suppression of fixed noise and gives a dynamic range of 120 db. According to Stemmer, this equates to a 1,000 times greater brightness ratio (ratio of the highest brightness value to the lowest brightness value that can be imaged in a scene) compared to conventional linear CCD sensors, which typically have a dynamic range of 60 db.
Detection, Monitoring & Machine Vision

For more information on companies in this article

Related Content

  • Milesight officially launches 4G Solar-powered camera series
    October 1, 2024
    Product is designed to solve challenges of deploying network cameras in off-grid areas
    Read More
  • Point Grey: redefining value performance
    March 1, 2013
    Canadian manufacturer of high-performance digital cam­eras Point Grey has begun producing its new Blackfly cam­era, which the company says is suited to applications in open road tolling and machine vision. The first model, the BLFY-PGE-13E4, features a 1.3MP, 60fps, CMOS global shutter sensor available in both monochrome and colour, and consumes less than two watts of power in what the company claims is the world’s smallest and lightest GigE Pow­er over Ethernet (PoE) camera package. Future Blackfly models
    Read More
  • Inertial sensors dramatically improve GNSS for ITS applications
    January 18, 2012
    Phil Harris, Thales UK, on how fused sensor data can significantly enhance GNSS-based positioning systems' performance in urban areas. Global Navigation Satellite System (GNSS)-based positioning is unique among available positioning technology due to its universal coverage and low equipment cost. By measuring the distances between an unknown position (such as a vehicle), and at least three known positions (GPS satellites), the unknown position can be calculated in three dimensions (latitude, longitude, and
    Read More
  • Machine vision needs standards to fulfil ITS demands
    May 28, 2014
    No-one should expect the enabling qualities of machine vision to come free of charge but Jason Barnes finds there is still much that ITS stakeholders can do to help reduce costs. After many years of application in high-end solutions for the enforcement and tolling sectors, machine vision is gaining traction in more general areas of traffic management. Nevertheless, those OEMs producing transport-oriented solutions which incorporate machine vision and looking to increase the technology’s share of the ITS mar
    Read More

Highlighted Content