Optical guide unit, its mfg. method , and dental appliances having optical guide unit

Application Number: 00108533
Application Date: 2000.05.12
Publication Number: 1273808
Publication Date: 2000.11.22
Priority Information: 1999/5/12 JP 130844/99
International: A61B1/07
Applicant(s) Name: Nakanishi Co., Ltd.
Inventor(s) Name: Nakanishi Takasuke
Patent Agency Code: 72001
Patent Agent: cui yaobeng
Abstract There is disclosed a light guide unit including a bunch of glass fibers capable of transmitting light from a light source to a desired site, a sheath of a thermocontracting resin contracted to cover the bunch of glass fibers for substantially its overall length, and a filler of a hardening resin hardened to fill spaces between the glass fibers within the sheath. Also disclosed are a method for producing the light guide unit, and a dental handpiece having the light guide unit.