Detector With Optical Block

摘要

An optical smoke detector includes a radiant energy source and a sensor. The source and sensor are carried by an optical block which provides a fixed orientation therebetween and barriers therebetween. The barriers reduce noise and false alarming due to bugs, dust water vapor and other intrusive elements. The barriers can include V-shaped members at a selective angle relative to center lines of the source and sensor.

主权项

1. A detector comprising:
a source which emits a beam of radiant energy toward a sensing chamber when energized; a sensor which responds to incident radiant energy from the sensing chamber; and an optical support member which carries at least one of the source or sensor wherein the member provides at least one optical barrier which blocks at least a portion of the beam or the incident radiant energy.