Light-illuminating rods
Assignee3M Innovative Properties Company
InventorsYukio Nojiri, Kenji Matsumoto, Shinichi Irie
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Abstract
A light illuminating rod has a light transmitting core and a cladding surrounding the core. In some locations there is a light diffusing material between the core and cladding. Furthermore, in some embodiments of the invention, the light transmitting core has light diffusing materials within it.
Claims4
A light-illuminating rod comprising (a) a flexible rod member formed from a light-piping plastic material and (b) a light diffusible reflective film which is fixedly bonded to part of the outer periphery of the rod member along the longitudinal direction thereof and which comprises (i) a light-transmittable polymer and (ii) light diffusible reflective particles dispersed in the polymer,
- said light-transmittable polymer of the light diffusible reflective film having a storage modulus of 1.0×104 to 1.0×108 dyne/cm2 as measured by a viscoelastic spectrometer.
Dependencies are inferred from the claim text.