Peel from the case to the element. Follow the readout through this conceptual model.
Drag to rotate; pinch to zoom. With the view focused: arrow keys rotate, + / − zoom, 1–3 choose a layer, Home resets rotation and zoom. Step advances to the next layer; Reset returns to the case and default view. Layer buttons select a view directly. The page does not move on its own.
A reflective infrared sensor shines infrared light and measures how much bounces back. [Overview: Photons In, Current Out · Infrared reflection]
Teaching view: The dark housing holds a blue emitter lens beside a dark detector lens, with four leads below. The emitter sends light out, and the detector receives light reflected by a target.
A reflective infrared sensor shines infrared light and measures how much bounces back. [Overview: Photons In, Current Out · Infrared reflection]
Teaching view: The dark housing holds a blue emitter lens beside a dark detector lens, with four leads below. The emitter sends light out, and the detector receives light reflected by a target.
Reflected light intensity can indicate presence or relative proximity when target reflectivity and geometry are controlled. [Overview: Photons In, Current Out · Infrared reflection]
Teaching view: Removing the housing and lenses exposes the two carriers and their metal connections. The emitter and detector work as a pair to send light out and sense its return.
In a photodiode detector, returning light frees electric charges and produces a current. A readout circuit converts that current into a voltage, and an analog-to-digital converter (ADC) turns the voltage into a number. [Overview: Photons In, Current Out · Infrared reflection]
Teaching view: The close view centers on the gold carrier beneath the detector lens. This is the receiving side of the pair, where returning light produces an electrical reading.
Explode separates the conceptual layers; X-ray makes the case translucent. External package dimensions follow the model specification; internal teaching geometry is conceptual, not to scale, and is not manufacturer CAD or a wiring diagram.