LIGHT DIFFUSING PLATE AND LIGHTING DEVICE USING IT
First Claim
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1. A light diffusing plate, comprising:
- an optical element array integrally formed on front and rear surfaces of a light diffusing plate substrate to be mounted onto a direct lighting device.
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Abstract
A light diffusing plate integrally formed with an optical element array on the front and rear surfaces thereof, and a direct lighting device having this light diffusing plate installed on a light reflection plate having a box type shape and provided therein with a light source, whereby a light diffusing plate and a thin direct lighting device are provided which eliminate luminance non-uniformity among a number of light sources (inter-light-sources distance) at a practical level (making luminance uniform), and realize higher luminance (delivering luminance equal to that when conventional prism sheets are laminated)
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Citations
9 Claims
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1. A light diffusing plate, comprising:
an optical element array integrally formed on front and rear surfaces of a light diffusing plate substrate to be mounted onto a direct lighting device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
Specification