Process for the production of reflective elements of a light and lights obtained according to this process
US5788366A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1995 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Jun 16, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V7/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a process for the production of the profile of reflective elements of a light as well as the lights obtained by this process, the light comprising at least two cylindrical reflective elements (5, 5'). This process is characterized in that it comprises the steps consisting of: PA1 defining the position of one end (R.sub.o) of the profile of each reflective element (5, 5') PA1 defining an illumination function E(.theta.) corresponding to a desired illumination curve, connected to a luminance function L(.theta.) by the formula: EQU E(.theta.)=L(.theta.).multidot.cos.sup.2 .theta.=ks.multidot.cos.theta.+.rho.r.multidot.sin (.phi.-.theta.)-.rho.r.sub.o sin (.phi..sub.o -.theta.)! cos.sup.2 .theta. if said end (Ro) of the profile of the reflective element (5, 5') is the downstream end of this latter, and an illumination function: EQU E(.theta.)=L(.theta.).multidot.cos.sup.2 .theta.=ks.multidot.cos.theta.-.rho.r.multidot.sin (.phi.-.theta.)+.rho.r.sub.o .multidot.sin (.phi..sub.o -.theta.)! cos.sup.2 .theta. if said end (Ro) is the upstream end of said profile PA1 determining, from said end (Ro), the coordinates of each of the points (R) of said profile of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.