Integrated Optical Plate for Lighting with Diffusing and Viewing Angle Adjusting Layers
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Solution Overview
Problem
Conventional optical plates for lighting suffer from thickened structures due to separate light-diffusing and optical viewing angle adjusting members, which are prone to gravitational deflection and fail to efficiently control optical viewing angles, leading to glare issues.
Innovation Solution
An integrated optical plate with a light-diffusing member, a transmission layer, and an optical viewing angle adjusting member laminated together, along with a pattern layer on the adjusting member, allows independent function and reduces thickness, enhancing optical viewing angle control and glare reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a light-diffusing member and an optical viewing angle adjusting member are produced separately and then condensed, then each member can be manufactured independently, but gravitational deflection causes each member to become thicker than necessary (1.5 mm or more), resulting in an overall thickened optical plate
Solution Approach 1:
The patent merges the light-diffusing member and the optical viewing angle adjusting member into a single integrated optical plate. The light-diffusing member is formed as a first region of the optical plate with a light-diffusing layer, while the optical viewing angle adjusting member is formed as a second region with a patterned surface, both within the same optical plate structure. This integration eliminates the need for separate manufacturing and condensation of multiple members, thereby reducing gravitational deflection and overall thickness while maintaining independent functional capabilities.
2Device complexity
If a light-diffusing member and an optical viewing angle adjusting member are condensed together, then manufacturing is simplified, but index matching occurs between the members which diminishes the optical viewing angle adjusting member's attribute and drastically augments the light-diffusing member's attribute in the lower part
Solution Approach 1:
The patent applies local quality by creating distinct regions within the optical plate with different functional characteristics. The first region contains the light-diffusing member with a light-diffusing layer having specific diffusion properties, while the second region contains the optical viewing angle adjusting member with a patterned surface having different refractive index characteristics. This regional differentiation allows each member to maintain its specific optical attributes and function independently within the integrated structure, preventing index matching issues while simplifying the overall device.
3Object-affected harmful factors
If conventional fluorescent light reflectors are used to limit viewing angles of LED lighting, then light can be directed facing forward and glare can be prevented, but the strong straight progression characteristic of LED light cannot be removed, making each LED diode independently visible and creating peripheral light leakage
Solution Approach 1:
The patent segments the optical plate into multiple functional regions: a light-diffusing region with a light-diffusing layer that breaks up and redistributes light from individual LED diodes to prevent independent visibility and peripheral light leakage, and an optical viewing angle adjusting region with a patterned surface that directs light forward while limiting viewing angles to prevent glare. This segmentation allows simultaneous achievement of uniform brightness distribution and glare control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated structure effectively controls optical viewing angles and reduces glare, achieving a thinner optical plate with improved brightness distribution and reduced gravitational deflection, while maintaining high haze values for effective light diffusion.
Implementation Method 1
a light-diffusing member (810), which diffuses light emitted from a light source
Implementation Method 2
condensed by patterns formed in a structural layer as it penetrates the structural layer
Implementation Method 3
an optical viewing angle adjusting member (830), which condenses diffused light, wherein the optical viewing angle adjusting member has a patterned surface
Implementation Method 4
a transmission layer (820) positioned between the light-diffusing member and the optical viewing angle adjusting member
Data Source
AI summary
The present invention relates to an optical plate for lighting capable of improving the brightness of light emitted from a light source and adjusting a viewing angle to alleviate side glare phenomenon. The present invention also relates to a lighting. The purpose of the present invention is to provide a structure in which a light-diffusing member and an optical viewing angle adjusting member can independently function; an integrated optical plate for lighting, wherein the thickness of the optical plate for lighting is reduced by the lamination of a light-diffusing member, a transmission layer, and an optical viewing angle adjusting member; a lighting apparatus using thereof. In order to achieve this purpose, the technical properties of an optical plate for lighting according to the present invention have a transmission layer between a light-diffusing member and an optical viewing angle adjusting member while a light-diffusing member, a transmission layer, and an optical viewing angle adjusting member are laminated together.