US 4,621,907 AGrant
Conical Beam Concentrator
Issue Date:1986-11-11
•1 Claims
•1 Drawing Sheets
Abstract
An upper component lens which transmits and refracts a circular whole incipient beam into a lower component lens which transmits and refracts the beam, forming a divergent lateral beam in the horizontal plane. The beam concentrator is to be used as the lower stage of a pipe cutter.
Metadata
Inventor
- John E. Clegg
Application Information
Application Number:US 6579280
Filing Date:1984-10-05
Priority Date:1984-10-05
Art Unit:257
Classifications
IPC:
G02B 1318
Field of Search:
350432-435
Patent Drawings (1 sheets)
Description
Background
The code designation of the concentrator is TTRT-RT:C (T--transmitting section of a component lens, R--refracting section of a component lens, and C--concentrating stage lens).
Prior art is limited to beam concentrators which emit concentrated whole or annular beams parallel to the vertical optic axis of the lenses.
The upper component lens of this beam concentrator is used extensively in other beam concentrators by this inventor.
Drawings
FIG. 1 is an elevation of the conical beam concentrator with the lenses shown in section.
FIG. 2 is an elevation of the beam concentrator with a ray diagram.
Description
FIG. 1 shows the conical beam concentrator TTRT-RT:C with upper component lens RT 1 mounted above lower component lens TTRT 2 inside casing 3.
FIG. 2 shows the conical beam concentrator with a ray diagram. Circular whole incipient beam 4 is transmitted by planar section 5 and refracted by convex conical section 6, forming convergent conical beam 7.
Beam 7 is transmitted by concave conical section 8, refracted by convex conical section 9 and transmitted by cylindrical sections 10 and 11, forming divergent lateral beam 12 which is emitted in the horizontal plane .
Claims
I claim:
1. A conical beam concentrator TTRT-RT:C comprising an upper component lens RT (1) having a planar section (5) which receives and transmits a circular whole incipient beam (4), and having a convex conical section (6) which refracts incipient beam (4), forming convergent conical beam (7); and comprising a lower component lens TTRT (2) mounted below upper component lens RT (1) and having a concave conical section (8) which transmits convergent conical beam (7), having a convex conical section (9) which refracts convergent conical beam (7), forming concentrated divergent lateral beam (12), and having two cylindrical sections (10,11) which emit the concentrated divergent lateral beam (12) in the horizontal plane.