Device and method for the optical detection of objects
First Claim
Patent Images
1. A method for optical distance measurement or for optical detection of an object, said object having an at least partially reflective surface, comprising the steps of:
- providing a diffusely scattering reflector at a position spaced from the object;
directing a light beam to the reflective surface;
reflecting the light beam off the reflective surface such that the reflected light beam impinges on the diffusely scattering reflector;
diffusely scattering the reflected light with the diffusely scattering reflector;
reflecting the diffusely scattered light off of the reflective surface and thereby redirecting the diffusely scattered light to a light receiving means;
receiving the redirected diffusely scattered light at the light receiving means; and
,detecting and evaluating the redirected diffusely scattered light received by the light receiving means.
5 Assignments
0 Petitions
Accused Products
Abstract
A method and a device for the optical distance measurement and for the optical detection of objects with an at least partially specular reflective surface (12) wherein light through the specular reflective surface (12) and a diffuse scattering at a reflector (4) is directed to light receiving means and detected there.
-
Citations
10 Claims
-
1. A method for optical distance measurement or for optical detection of an object, said object having an at least partially reflective surface, comprising the steps of:
-
providing a diffusely scattering reflector at a position spaced from the object; directing a light beam to the reflective surface; reflecting the light beam off the reflective surface such that the reflected light beam impinges on the diffusely scattering reflector; diffusely scattering the reflected light with the diffusely scattering reflector; reflecting the diffusely scattered light off of the reflective surface and thereby redirecting the diffusely scattered light to a light receiving means; receiving the redirected diffusely scattered light at the light receiving means; and
,detecting and evaluating the redirected diffusely scattered light received by the light receiving means. - View Dependent Claims (2)
-
-
3. A device for optical distance measurement or for optical detection of an object, said object having an at least partially reflective surface, said device comprising:
-
a light source for generating a light beam, light receiving means and evaluation means for evaluating light signals received through the light receiving means, and, an at least partially diffusely scattering reflector, the diffusely scattering reflector being spaced from the reflective surface, wherein said light source, reflective surface, said diffusely scattering reflector, and said light receiving means are positioned such that light is directed from the light source to the light receiving means by the reflective surface and the diffusely scattering reflector, and wherein the light source, the light receiving means and the diffusely scattering reflector are integrated in a sensor. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
-
Specification