Object movement detector system
AssigneePro-Optical Technologies, Inc.
InventorsMichael Liva, Alex MacDonald, Luis Marrero
Life of this patent
Estimating the term…
Abstract
A head unit for remote light sensing utilizes a lens secured in one end opening proximate to the light to be sensed, as well as a passive light source having a radiating end and a passive light collector having a receiving end, the source and collector being secured in a second opening such that both are substantially adjacent to the focal point of the lens and to each other such that the lens substantially collimates light emitted from the passive light source, and focuses received external collimated light at the focal point of the lens. The passive light source and passive light collector are respectively connectible to a powered light source and a photoelectric detector.
Claims6
A remote sensing light broadcasting and collection head unit for use with photoelectric sensing apparatus, the head unit comprising a hollow body having a first forwardly facing opening and a second opening;
- a lens secured in the forwardly facing opening for the transmission of light therethrough between the exterior and interior of the hollow body;
- a passive light source having a radiating end and a passive light collector having a receiving end, secured in and through the second opening such that both said ends are substantially parallel to each other and adjacent to the focal point of said lens, such that the lens substantially collimates light emitted from the passive light source and passing through the lens in a direction forwardly of the head, and focuses received reflected collimated light passing through the lens, from outside of the head, substantially at the focal point of the lens;
- first and second light transmitting means connected to each of the passive light source and passive light collector, respectively, and designed to be remotely operably connected to a powered light source and a photoelectric detector, respectively and wherein said radiating end, said receiving end, and said focal point of said lens are all substantially in a straight line substantially parallel to the longitudinal axis of said lens such that all light passing to and from said radiating end and said receiving end passes through said lens.
Dependencies are inferred from the claim text.