透射式光敏（组图lnterrupters ） Transmissive Photosensors Photo lnterrupters
Photo lnterrupter
For contactless SW, object detection
■ Overview
is a small size photocoupler package consisting of a high efficiency GaAs infrared light emitting diode used as the light emitting element, and a high sensitivity phototransistor is used as the light detecting element.
■ Features
• Highly precise position detection: 0.3 mm
• Wide gap between emitting and detecting elements, suitable for thick plate detection
• Fast response: tr , tf = 6 µs typ.
• Small output current variation against change in temperature