Core Technologies of Industrial Imaging

Technologies

The most powerful driving force that enables Vieworks to become a leading developer and manufacturer
of the most customer-satisfactory imaging systems is its core technologies such as optics, mechanics,
electronics and software. The strength of Vieworks lies in its capability of all-in-house design and
quality control based upon its possession in all these core technologies in house.

  • Hybrid TDI line scan sensor
    which has combined the benefits of
    CCD and CMOS sensor.

    Vieworks Hybrid TDI
    Line Scan Sensor

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  • Introducing the world’s highest 155M
    resolution area scan sensor.

    Vieworks High Resolution
    Area Scan Sensor

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  • Extended image resolution
    with nanotechnology to
    overcome the sensor’s limit.

    Pixel Shifting
    Technology

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  • Enabling the stable operation
    in limited thermal conditions.

    Thermoelectric Cooling
    Technology

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Vieworks Hybrid TDI Line Scan Sensor -

TDI, Time Delayed Integration, line scan cameras are used for application which require higher sensitivity. It uses multiple line scan stages up to provide up to 256 times higher sensitivity while a standard line scan camera scans only one time. However, they also have some disadvantages because of the conventional sensor structure's limit.

To improve TDI line scanning performance, Vieworks has developed hybrid TDI line scan sensor. The Hybrid TDI sensor with CCD pixel structure implemented by using CMOS technology allows ultra-high-speed image captures with up to 256 times greater sensitivity. It is the first concept of TDI line scan sensor and Vieworks named it VTDI (Vieworks TDI)

Conventional CCD sensor

Pros
  • Better image quality
  • Higher SNR (Signal-to-noise ratio)
Cons
  • Higher power consumption
  • Higher cost

Conventional CMOS sensor

Pros
  • Faster speed
  • Lower power
    consumption
Cons
  • Higher noise

Vieworks Hybrid TDI Sensor is...

Combining a light sensitivity CCD-based TDI pixel array with CMOS readout electronics, thus having the best features from CCD and CMOS.
  • Better
    sensitivity
  • Higher
    dynamic range
  • Faster
    speed
  • Lower power
    consumption

Vieworks High Resolution Area Scan Sensor -

The industry requires industrial cameras to have the higher resolution and the higher speed. As to meet such demands, Vieworks introduces
the world’s highest resolution area scan machine vision camera.

The World’s Highest Resolution
Area Sensor – 155 megapixels

The 155 megapixels sensor is a high resolution CMOS image sensor designed for the most demanding flat panel display inspection application. It is based on the 4T CMOS Platform and it has an excellent dynamic range and uniformity.
  • Ultra high resolution: 155 megapixels
  • Super wide FOV: 66.1 mm diagonal
  • Rolling shutter
  • High speed: 15 fps
  • High sensitivity

Pixel Shifting Technology

Pixel shifting technology allows a camera to acquire ultra high resolution beyond the sensor’s physical limitation. With pixel shifting cameras, not only you can use for
the applications where extremely high resolution is required but also save the costs from not buying multiple cameras. When choosing pixel shifting cameras, reliability
of the system is crucial because the stage where the image sensor is mounted on has to move precisely by ½ or ⅓ of a pixel even after using million times.

Vieworks’ Pixel Shifting Camera

Vieworks provides the most reliable pixel shift system by using the elaborate nano-stage technology to acquire:
  • Ultra high resolution
  • True color image
  • Improved fill factor

Thermoelectric Cooling Technology

Temperature is one of the most important factors of camera performance because the hotter sensor gets, the larger noises you will get.
Therefore having a good heat flow camera structure is important to avoid the detriment of cameras' performance.
Thermoelectric (TEC) cooling technology uses the Peltier effect to lower the temperature, reducing noises on extended exposure times.

Vieworks’ TEC Cooling Camera

Vieworks provides the most powerful cooling cameras by designing special heat dissipation structure from internal components to the housing:
  • Maintaining the operating-sensor temperature steadily up to 20 degrees below the ambient temperature
  • Remove the moisture occurred from the cold-surface of the Peltier using Vieworks’ signature heating structure.
  • Sturdy yet compact camera design

※The above images are intended to aid the consumers' understanding and may differ from actual images.