light diffuser

Abstract

Abstract PURPOSE:To obtain panel irradiation with uniform brightness by efficiently conducting the incident light on transparent plate bodies to light diffusing means through the inside of the plate bodies then diffusing the light by the light diffusing means then emitting the light from a light exit face. CONSTITUTION:The incident light on the light incident face 2a of an optical transmission body 2 from a light source 4 is propagated through the inside of the respective transparent plate bodies 1 like, for example, an arrow A, while the light is reflected on both surfaces of the bodies 1 and is then scattered by light scattering parts 5a-5e. Part of the scattered light is directly emitted, like an arrow B, from the light exit face 2b and the other part is reflected by a light reflector 3 and is then emitted like an arrow C from the light exit face 2b, by which the panel irradiation is obtd. The optical transmission body 2 is constituted of the plural bodies 1 laminated on each other and the light scattering parts 5a-5e are provided on the surface of the body 1 and therefore the incident light from the face 2a is efficiently conducted to the parts 5a-5e and is then emitted like the arrow B, C from the face 2b by which the panel irradiation having the uniform brightness is obtd.

Inventors

• 👤 Tokihiko Masuzawa
• 👤 増沢　時彦
• 👤 Yoshitaka Kageyama
• 👤 義隆 景山
• 👤 Norizou Tomita
• 👤 富田　則三

Bibliographic Details