The challenge
Light is emitted by an LED in a divergent bundle of rays. An extra lens as part of the housing of the LED is needed to produce a less divergent cone of rays. How would an LED look like that emits perfectly collimated light just like the sunrays reaching the earth?
The invention
The RES-LED has an internal reflector with convex parabolic sides. When reflected two or three times the rays emitted by the LED are straightened and by a final supplementary refraction when leaving the housing are collimated to an almost parallel bundle of rays.
The advantages
- Artificial light source with sunlight qualities
- Collimation of the emitted light
- Modules with several LEDs in one housing
The applications
- Artificial sun
- Headlights of all sorts
- Artificial light system for greenhouses
- Surgical light