| 摘要 |
The present invention relates to curing light devices for use in dentistry. Specifically, this invention relates to curing light devices generating convergent and uniform light with high intensity. The curing light device has a handle portion and a front portion wherein a light module is located in a desirable position in the interior of the front portion. The light module may include a light source comprising at least three LEDs in a compact manner, an optical element adapted to direct and/or focus the LEDs, and a lens cap to protect the LEDs and the optical elements. The lens cap may include a peripheral groove extending more than half of the periphery of the lens cap, which provides a longer engagement portion and thus a more secured attachment when "over-centeredly" engaging with a receiving edge on the light emitting end. A substantially precise alignment is achieved between the LEDs and corresponding lenses on the optical element to minimize heat dissipation and to increase the runtime and intensity of the curing light device. The curing light has an effective beam diameter of at least about 9 mm with output homogeneity of up to about 6 mm away from the emitting end.
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