Hamamatsu S6986 Proximity Sensor

Light sensor with built in pulse driver circuit and sync detector. Useful as a wide-angle proximity detector or for non-contact bump sensing. The pulse driver modulates the output of an external LED (not included). The LED will illuminate the target with modulated light; reflected light in sync with the output is detected by the S6986, making detection relatively insensitive to ambient lighting. This device is similar to the Sharp IS471F Proximity Detector, but with different frequency response and sensitivity. In particular, the S6986 is sensitive to visible light as well as infrared, making it ideal to use for a long-range laser proximity detector.

Datasheet PDF