Method and device for determining a distance from an object

Details Method and device for determining a distance from an object Method and device for determining a distance from an object

2011-01-11

2011-01-11

Tarcza, Thomas H. (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S003010, C356S003100, C356S004010, C356S004100, C356S005100

Reexamination Certificate

active

07869005

ABSTRACT:
A device for determining a distance from an object may include a light emitter for emitting an emission light beam, a light receiver for receiving a reception light beam, and an evaluation unit for determining the distance on the basis of a propagation time of the emission and reception light beams. The reception light beam may arise as a result of reflection of the emission light beam at the object. The light receiver may have a reception optical unit comprising a first lens element and a pinhole diaphragm. A light-impermeable element may shade a central region of the reception optical unit in such a way that the reception light beam is incident in the form of a light ring on the pinhole diaphragm. A second lens element, which is substantially hat-shaped in cross section, is arranged between the first lens element and the pinhole diaphragm.

REFERENCES:
patent: 2004/0027554 (2004-02-01), Ishinabe et al.

Affiliated with

Also associated with

Rating

Method and device for determining a distance from an object does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for determining a distance from an object, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for determining a distance from an object will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2676559