Technical Articles

  1. Operating Edge-Emitting Pulsed Laser Diodes With Short Pulses

    Applications for Edge-Emitting Pulsed Laser Diodes often require device operation with narrow pulse widths. These conditions may be necessary for ensuring eye-safe system certification or precision in distance measurement systems. Short pulses also allow for reliable higher peak power operation of the devices. This application note examines the many challenges that occur in generating short pulses with pulsed laser diodes and possible solutions.

  2. Pyroelectrics vs. Thermopile IR Detectors

    Thermopile IR detectors are thermocouples made from dissimilar materials with differing Seebeck coefficients. The Pyroelectric effect in is manifested in dielectric materials which have a crystalline asymmetry such that its polarization is changed when its temperature is changed.

  3. Understanding Intensified sCMOS Imaging

    Image intensifiers are used to increase the intensity of available light in a system to enable better image reproduction in low light environments. However, the question remains as to if this technology is necessary in light of vast advancements in camera technologies. This white paper investigates the challenges that necessitate the application of image intensification technologies and covers a variety of methods, including the next generation of intensified imaging.

  4. Why Is Binning Different In CMOS Image Sensors Compared To CCD Image Sensors?

    “Binning” is defined as the combination of the charge carrier content of two or more pixels of an image sensor to form a new so-called super pixel. This white paper discusses the reasons for the difference of “binning” in CMOS and CCD technologies and how it improves the signal-to-noise ratio.

  5. Why Is A Backside Illuminated Sensor More Sensitive Than A Front Side Illuminated Sensor?

    Backside illuminated image sensors have fewer obstacles in the pathway of the incoming light as it reaches the volume of the pixel, where the conversion to charge carriers takes place. As a result, backside illuminated CMOS image sensors are able to convert more of the light into charge carriers, resulting in larger signals and better images.

  6. Why Does High-Resolution Inspection Of Food Products Matter?

    The presence of any foreign material in food products could be a disastrous outcome for any company. This white paper discusses the use of high-resolution cameras for food inspection and the benefits that it offers over other types of inspections.

  7. Why Are There Special Interfaces For The Transmission Of Image Data?

    The amount of image data that must be transferred to computers for storage and processing is continuously increasing in all fields of application. The demand for fast, reliable data transfer increases in turn. This white paper discusses the progression of camera interfaces, and how they are continuously improved to enable reliable streaming data transfer from the camera to the computer.

  8. What Is All The Hype About Resolution And Mega Pixels Anyway?

    Resolution, in the context of an image sensor, describes the total number of pixels utilized to create an image. The question is then why does pixel count matter? This white paper discusses the importance of resolution and its relevance in camera systems with image sensors.

  9. What Are All The Discussions About Global Vs. Rolling Shutter?

    The shutter in a camera system enables the control of the exposure time and thus, the level of signal in an image. The shutter also defines the quality of an image if the objects are moving, as well as setting the environment for experiments, especially involving synchronization with illumination light.

  10. Standards Always Sound Impressive, But Is There Any Benefit For Me As An sCMOS Camera User?

    In the case of the standard EMVA1288, a standard for the specification and measurement of machine vision sensors and cameras, there is a significant benefit for an sCMOS camera user. It creates transparency by defining reliable and exact measurement procedures as well as data presentation guidelines and makes the comparison of cameras and image sensors much easier. This white paper explores this standard, its purpose, and its benefits for a sCMOS imager.