Optical sensor for detecting lubricant deterioration

摘要

A lubricant deterioration sensor mounted in a machine to detect deterioration of a lubricant of the machine, the sensor comprising a white LED for emanating white light, an RGB sensor that detects colors of received light, a clearance forming member in which an oil clearance for intrusion of the lubricant is formed, and a support member that supports the white LED, the RGB sensor, and the clearance forming member; and wherein the clearance forming member allows passage of the light emitted from the white LED, and the oil clearance is placed along an optical path from the white LED to the RGB sensor.

主权项

1. An optical sensor, comprising:
a light emitting element for emanating light; a light receiving element for detecting the light, disposed adjacent to the light emitting element; a clearance forming member including a first reflection surface, a second reflection surface, and a fluid clearance in which a fluid enters; a support member supporting the light emitting element, the light receiving element and the clearance forming member; an optical path surrounding member, wherein the clearance forming member is transmissive so that the light emitted from the light emitting element transmits therethrough, the fluid clearance is provided on an optical path from the light emitting element to the light receiving element such that light reflected from the first reflection surface passes through the fluid clearance before reaching the second reflection surface, and the optical path surrounding member surrounds at least a portion of the optical path.