TH86453B - Optical transducers and optical recording and / or reproducing devices that use such - Google Patents

Abstract

The optical sensor consists of a light source, an object lens to focus on the light emitted from Light source to form a point of light on optical information storage medium, optical path changer. To change the optical path of the light, a photodetector to accept reflected / diffraction by an organized medium. Collect optical information and to detect information and / or fault signals and optical elements to protect the central part of the light and protect the presence of an The center of light which is reflected / diffused by optical information storage medium and It spreads to the photodetector, not to be picked up by the photodetector.

Claims (1)

1. Optical signal catcher Which contains the following components Light source Object lens to focus on the light emitted by a light source to create a point of light on an arranged medium. Collect information using light Optical path changer to change the optical path of the light. Optical detectors to receive reflected / diffraction light by a storage medium using And to detect information and / or surface signs and optical elements to protect the central part of the light and protect the t