| 摘要 |
There is disclosed a light guide unit (20) 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 (20), and a dental handpiece (10) having the light guide unit (20). <IMAGE> |
