Under vehicle inspection system

• US 20030193818A1
• Filed: 04/14/2003
• Published: 10/16/2003
• Est. Priority Date: 04/15/2002
• Status: Active Grant

• Current Assignee: Jianli Ren, Paul E. Robbins, Peter Mcnicol, William J. Grothe
• Original Assignee: Jianli Ren, Paul E. Robbins, Peter Mcnicol, William J. Grothe
• Inventors: Grothe, William J., Robbins, Paul E., McNicol, Peter, Ren, Jianli
• Granted Patent: US 6,997,594 B2
• Time in Patent Office: Days
• US Class Current: 362/559
• CPC Class Codes: G02B 6/001 the light being emitted along at least a portion of the lateral surface of the fibre
• CPC Class Codes: G02B 6/4298 coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers

Abstract

A portable vehicle inspection system including a series of mats into which two lengths of flexible, polymeric side light transmitting optical fiber extend along channels placed near the edges of the mats, and at a distance to be within the tracks of wheels of a vehicle passing thereover, with the polymeric fiber optic including notches and a reflector directed to provide a steady, uniform flood of light up to the underside of a vehicle to be inspected, and between the inspection zone, and the light source, the polymeric optical fiber is covered by an opaque jacket to prevent light from radiating outward.

Claims

1. An optical fiber lighting system comprising:

at least one predetermined length of fiber optic conduit arrayed in a substantially planar configuration;

one or more substrate units adapted to be removably linked to other of said substrate units;

each said substrate unit further adapted to be positioned beneath a wheeled vehicle;

each said substrate unit further adapted to be removably joined with said fiber optic conduit;

said fiber optic conduit removably joined with said at least one substrate unit;

said fiber optic conduit adapted to project transmitted light in a predetermined arc outwardly from said at least one substrate unit;

said fiber optic conduit optically connected with a light source.

2. The optical fiber lighting system of claim 1 further including:

a plurality of predetermined lengths of fiber optic conduit arrayed in a substantially planar configuration.

3. A fiber optic conduit under vehicle inspection system comprising:

a light source adapted to illuminate at least one fiber optic conduit;

at least one length of flexible polymeric fiber optic conduit operationally connected to said light source;

said conduit adapted to emit transmitted light radially outwardly in a radial arc subtending a predetermined angle, over a first predetermined light emitting portion of its length;

said conduit sheathed by an opaque cover over a second predetermined portion of its length;

a portable track having a linear slot adapted to removably retain the light emitting portion of said conduit;

said light emitting portion of the conduit disposed in the track whereby the light emitting arc of the conduit is positioned to emit light over said predetermined angle through said slot; and

said track adapted to be positioned under a vehicle.

4. The fiber optic conduit under vehicle inspection system of claim 3 wherein:

said light emitting portion of the conduit includes a reflecting layer.

5. A fiber optic conduit under vehicle inspection system comprising:

a light source adapted to illuminate at least one fiber optic conduit;

at least one length of light transmitting fiber optic conduit adapted to be illuminated by said light source connected thereto;

at least one section of track of predetermined length having a longitudinal channel adapted to removably retain said fiber optic conduit;

a first portion of said optical conduit disposed in said longitudinal channel with a predetermined radial arc of said conduit covered by said channel;

said first portion of the optical conduit including a clad polymeric core partially surrounded by a reflective layer extending over a predetermined radial arc of the clad core, sheathed by a surrounding light transmitting polymeric jacket;

said first portion of the optical conduit adapted to emit transmitted light radially outwardly over a predetermined radial arc;

said first portion of the optical conduit oriented within said channel such that the radial arc through which light is emitted and the radial arc covered by the channel do not intersect;

a second portion of the optical conduit including the clad polymeric core sheathed by a polymeric jacket, surrounded by a jacket of opaque material.

6. The fiber optic conduit under vehicle inspection system of claim 5 wherein:

the radial arc of said conduit covered by said channel does not exceed approximately 300°

.

7. The fiber optic conduit under vehicle inspection system of claim 5 wherein:

the radial arc of said clad polymeric core surrounded by the reflective layer does not exceed approximately 300°

.

8. The fiber optic conduit under vehicle inspection system of claim 5 wherein:

the radial arc through which light is emitted from said first portion of the optical conduit is approximately 60°

.

9. The fiber optic conduit under vehicle inspection system of claim 5 wherein:

said second portion of the optical conduit extends between said first portion and said light source.

10. The fiber optic conduit under vehicle inspection system of claim 5 wherein:

said track is adapted for placement on a surface over which a wheeled vehicle can be operated.

11. The fiber optic conduit under vehicle inspection system of claim 5 further including:

a plurality of track sections which are linked together.

12. The fiber optic conduit under vehicle inspection system of claim 5 wherein:

a plurality of fiber optic conduits are illuminated by the single light source.

13. An under vehicle inspection system comprising:

a plurality mats each having substantially the same size and shape defining a sheet of flexible material adapted for easy manual manipulation;

each said mat having substantially the same first width and first length adapted to be linked to at least one other of said plurality of mats;

a section of track having a longitudinal channel and substantially of said first length affixed to each of said plurality of mats;

said plurality of mats linked together with said sections of track aligned in tandem register in two substantially parallel rows;

at least one fiber optic conduit of continuous predetermined length greater than said first length received in said longitudinal channel of each said two substantially parallel rows of track.

14. A under vehicle inspection system comprising:

at least one length of polymeric optical fiber adapted to be connected to a light source;

at least one section of a track extending a predetermined distance and having therein a channel sized and adapted to retain a portion of the polymeric optical fiber;

the polymeric optical fiber having a series of notches cut therein for a first predetermined distance along its length and, reflector adjacent the notches and extending radially about the fiber optic in an arc of about 300 degrees;

a translucent or transparent jacketing material surrounding the clad core and the reflector; and

a second predetermined length of said polymeric optical fiber surrounded by an opaque jacketing material.