HIGH-EFFICIENCY LED ILLUMINATOR WITH IMPROVED BEAM QUALITY AND VENTILATED HOUSING

摘要

An improved illuminator with an adjustable beam pattern to be worn by medical and dental professionals includes a housing, a light-emitting diode (LED) disposed in the housing outputting light through a distal opening in the housing, an achromatic doublet lens mounted in the opening in the housing, and a singlet lens disposed between the LED and the achromatic lens. The distance between the singlet lens and the doublet lens may be adjustable, and/or distance between the LED and the singlet lens may be adjustable, through a threaded connections, for example. In the preferred embodiment, the achromatic doublet lens, the singlet lens, or both the singlet and the doublet lens have a planar surface. A conical mirror may be disposed between the LED and the singlet lens to increase the light collection efficiency of the LED.

主权项

1. An illuminator of the type worn by medical and dental professionals, comprising:
a housing; at least one light-emitting diodes (LED) disposed in a compartment within the housing, the LED outputting light through a distal opening in the housing; an achromatic doublet lens mounted in the opening in the housing; a singlet lens disposed between the LED and the achromatic lens; an attachment mechanism coupled to the housing enabling the illuminator to be worn as a headlamp; and a plurality or ventilation holes formed in the compartment, the housing, or both to dissipate heat generated by the LED during use of the illuminator.