The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2014
Filed:
Mar. 24, 2010
Youji Ono, Niigata, JP;
Tatsuya Ueda, Niigata, JP;
Youji Ono, Niigata, JP;
Tatsuya Ueda, Niigata, JP;
KURARAY Co., Ltd., Kurashiki-shi, JP;
Abstract
Provided is a surface light emitter that supplies light using a light guide method, and ensures transparency by lowering a haze value in a thickness direction at the time when a light source is turned off, and enables highly efficient light emission by using plate-surface transversal radiant emitted light at the time when the light source is on. A surface light emitter () including light diffusing particles guides light in a length direction of the light guide while scattering the light in the thickness direction of the light guide while scattering the light in the thickness direction of the light guide, and a calculated value (m/%) obtained by dividing a luminance attenuation coefficient E (m) by a haze value (%) per 5 (mm) thickness of the light guide is greater than or equal to 0.55 (m/%) and less than or equal to 10.0 (m/%).