Light generator for introducing light into a bundle of optical fibers
AssigneeKoninklijke Philips Electronics N.V.
InventorsTheodorus F. M. M. Maas, Johannes P. M. Ansems, Simon H. A. Begemann
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Abstract
The light generator comprises a housing (1) with a light source in the form of a plurality of LEDs (3, 3′, . . . ), each having a luminous flux of at least 5 lm during operation. The housing (1) also comprises a collimating lens (6) and a Fresnel lens (8) for focusing the beam generated by the LEDs (3, 3′, . . . ). The light engine is further provided with drive means in a box (10) for driving the LEDs (3, 3′, . . . ). Preferably, the collimator lens (6) has a number of sub-lenses (7, 7′, . . . ), the optical axis of each of the sub-lenses coinciding with the optical axis of a respective one of the LEDs (3, 3′, . . .).
Claims9
A light generator comprising a housing accommodating a light source and an optical system for directing the radiation to be generated by the light source, wherein
- the light source comprises at least one LED having a luminous flux which is at least 5 lm during operation of the light source;
- the optical system comprises a collimating system for incident light from the light source, said collimating system including collimator elements which exhibit total internal reflection of a portion of said light;
- said optical system further comprising a focusing lens to focus within the housing, light incident from the collimating system;
- the housing is provided with cooling fins;
- and
- the light generator further comprises drive electronics for driving the LED and a metal-core printed circuit board on which the LED is mounted.
Dependencies are inferred from the claim text.