Faceted Annular Prism Optical Body for Homogeneous Illumination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional optic bodies with annular prisms fail to effectively reduce the perceptibility of a point light source, leading to glare issues, as they do not distribute light homogeneously and maintain the light source's appearance as a bright point.
Innovation Solution
The outer surfaces of the prisms are faceted in a circumferential direction at an acute angle, allowing for three-dimensional light distribution and reducing glare by distributing the light emitted from a point source into multiple partial distributions, which are then superimposed on the illuminated surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the outer surface of the prisms is smooth, then the manufacturing process is simpler, but the light distribution is not homogeneous and glare occurs
Solution Approach 1:
The outer surface of the prisms is segmented into multiple flat facets arranged at different angles rather than being smooth. This segmentation divides the light distribution into multiple partial distributions that are superimposed on the illuminated surface, achieving homogeneous illumination while maintaining manufacturing feasibility through mold-based fabrication.
Solution Approach 2:
The solution transitions from a two-dimensional smooth surface to a three-dimensional faceted surface with multiple planes oriented at different angles. This dimensional complexity enables the light to be reflected in multiple directions, creating homogeneous light distribution across the illuminated surface while avoiding glare.
2Volume of moving object
If the optic body uses a point light source, then the light source is compact, but the light source remains perceptible as a bright point causing glare
Solution Approach 1:
The faceted outer surface segments the light from the point source into multiple reflected beams at different angles. This segmentation distributes the concentrated point source light across a wider area, preventing the formation of a perceptible bright point and eliminating glare while maintaining the compactness of the point light source.
Solution Approach 2:
Different facets of the outer surface are oriented at different local angles to redirect light from the point source in various directions. This local variation in surface orientation ensures that no single direction receives concentrated light, thereby preventing glare while preserving the compact point source configuration.
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
This design achieves homogeneous illumination, reduces the perceptibility of the light source as a point, and decreases glare, while also simplifying manufacturing and reducing material costs by allowing larger optic body dimensions and improved light distribution efficiency.
Implementation Method 1
a rearward, from the optical center of the lens optics facing away outer surface is provided, which is designed in the manner of a total reflection surface for deflecting the light coupled in via the light entry surface in the direction of a light exit surface of the lens optics
Implementation Method 2
a ring-shaped inner surface facing the optical center of the lens optics as a light entry surface... for coupling the light from a light source provided in the optical center of the lens optics into the optic body
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The invention relates to an optical body, comprising at least one lens optical system, which has a plurality of annular prisms provided concentrically to an optical center of the lens optical system, an annular inner surface facing the optical center of the lens optical system as a light inlet surface and a rear outer surface facing away from the optical center of the lens optical system being provided on each of the prisms, the outer surface being designed in the manner of a total internal reflection surface in order to deflect the light coupled in via the light inlet surface in the direction of a light outlet surface of the lens optical system, characterized in that the outer surfaces of the prisms are faceted in such a way that a plurality of facets is provided, said facets being distributed in a peripheral direction, the facets being provided at an acute setting angle to the peripheral direction of the prisms.