Optical guide unit, its manufacturing method , and dental appliances having optical guide unit
A technology of light guide and light source, used in dentistry, dental drilling, light guide of lighting devices, etc., can solve the problems of easy breaking and damage of glass fibers
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[0030] Now, the present invention will be described in detail with reference to a preferred embodiment with reference to the accompanying drawings, but the present invention should not be limited to this embodiment.
[0031] figure 1 A side view of one embodiment of a dental hand instrument 10 of the present invention is shown. The instrument 10 includes a head 11 for detachably holding a dental treatment tool 1, a neck 12 extending directly from the head 11, a neck 12 extending at an angle for the operator to grasp The gripping portion 13 and a connecting portion 14 disposed at the proximal end of the gripping portion 13 and used for connecting with a coupler (not shown). The coupler accommodates a light source (not shown) and connects the hand instrument 10 to a dental unit (not shown) or dental hose (not shown) in a conventional manner.
[0032] The hand instrument 10 is provided with a channel 15 extending generally axially from the connecting portion 14 and terminating ...
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