The pyroelectric effect is a response to changes in light levels. The change in light level produces a change in temperature which in turn produces a change in voltage across a crystal. The effect occurs in crystals with specific non-symmetric structural properties. At Pyreos we have a proprietary approach to the careful growth of these crystals to ensure the highest levels of performance in our sensors.
If you need more information, or you would like someone to call you back to discuss your requirements please get in touch.