Reducing the size of image sensors while maintaining high imaging performance standards
Sony's Pregius is a global shutter CMOS sensor based on the low-noise CCD structure of the Sony STARVIS, delivering crisp, clear, distortion-free images at high speeds. Pregius S continues to build on the high-performance imaging of previous generations of Sony Pregius sensors.
The Pregius S sensors will save you money by reducing your system costs and increasing your throughput, through the following ways:
1. Higher resolution and more data from a single camera
The 24.5 MP IMX530, the first sensor in this lineup, can replace multiple lower resolution cameras, minimizing your system’s complexity – and cost!
2. Lower cost optics
Fig. 1. Pixel size differences between different generations of Sony Pregius sensors.
With their new 2.74 µm pixels, Pregius S sensors nearly double the pixel density of earlier Pregius sensors. This keeps the sensors small, enabling the use of compact and inexpensive optics.
Fig. 2. Increased pixel density between the IMX253 Pregius sensor vs. the IMX530 Pregius S sensor.
The new pixel design also greatly reduces the lens shading which occurs when compact C-Mount lenses are used on sensor sizes up to 4/3”. Pregius S enables compact lenses to be used on large, high-resolution sensors with no loss of image quality.
Fig. 2.5 Comparison of shading with compact lens on 1.1” IMX253 Pregius sensor vs. the same lens on a 4/3” IMX530 Pregius S sensor.
3. Increased throughput
Global shutter readout ensures distortion-free capture of fast-moving targets. Make your production line faster and inspect and analyze more items in less time.
4. Reduce your lighting costs
Fig. 3. Sony Pregius S sensors combine the low global shutter readout and low read noise of previous Pregius generations with the high quantum efficiency and pixel density of STARVIS.
Pregius S sensors enable shorter exposures with less powerful lights. For example, the IMX530 achieves an exceptional Quantum Efficiency of 74% compared to 65% for previous generations of Global Shutter sensors. This is made possible by a new Back-illuminated pixel design which still delivers the low read noise which is the foundation of Pregius’s reputation for image quality.
Fig. 4. BSI sensors invert the traditional front illuminated sensor design making it easier for photons to enter each pixel’s light sensitive photodiode.
Fig. 5. The BSI IMX530 has a higher peak QE than than the front illuminated IMX250, even though the IMX250 has larger pixels.
Fig. 6. Pregius S maintains a low level of read noise.
By combining the Global shutter readout and low read noise of Pregius sensors with the high quantum efficiency and pixel density of STARVIS, Sony has set a new benchmark for CMOS image sensors.
To learn about the Sony Pregius sensor lineup, visit this page here.