Optical Element With Symmetrical Wave Grooves for Wide Beam Illumination
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Solution Overview
Problem
Conventional lamps with optical elements have limited illumination width and lack spatially resolved beam shaping properties, making them unsuitable for wide illumination at greater distances, particularly in vehicle working lamps or headlamps.
Innovation Solution
An optical element with a symmetrical groove structure designed as line optics, featuring a continuous variation in wave spacing, slope, or radius, described by functions like cosine or sine, which adapts to change irradiation characteristics and enhances illumination by widening the beam in a spatially resolved manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional optical elements with fixed groove structures are used, then the beam shape is uniform and simple to manufacture, but the illumination width is limited and spatially resolved beam shaping is not achieved
Solution Approach 1:
The patent applies local quality by creating different groove structures in different regions of the optical element. The groove spacing, depth, or orientation varies continuously across the surface, with different zones having different groove characteristics to achieve spatially resolved beam shaping and widened illumination patterns specific to each region's requirements
Solution Approach 2:
The patent implements dynamics by using continuous variation of groove parameters rather than fixed uniform structures. The groove characteristics change continuously across the optical element surface, enabling dynamic beam shaping capabilities that adapt the illumination pattern to achieve wider coverage while maintaining manufacturing feasibility through systematic gradient designs
2Illumination intensity
If the groove structure varies continuously to achieve spatially resolved beam shaping, then the illumination width increases, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies parameter changes by systematically varying groove parameters (spacing, depth, orientation) across the optical element surface according to continuous functions. This mathematical approach allows precise control of beam shaping while providing clear manufacturing specifications that balance performance requirements with fabrication capabilities
Solution Approach 2:
The patent uses curved and continuous groove patterns rather than straight linear grooves. The continuous curvature of the groove structures enables smooth beam shaping transitions and wider illumination angles while the systematic mathematical description of these curves provides manufacturable precision guidelines
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 optical element achieves improved illumination by widening the beam in the near field and adapting to application-specific intensity requirements, providing a wider illumination angle of up to 110° at a working distance of 25 m, suitable for vehicle working lamps or auxiliary lamps.
Implementation Method 1
An optical element with a symmetrical groove structure designed as line optics
Implementation Method 2
The groove structure varies continuously starting from a center of symmetry in at least one direction of propagation of the groove structure
Data Source
AI summary
In an embodiment an optical element for a lamp includes a line optic having a symmetrical groove structure formed from waves, wherein the groove structure varies continuously starting from a center of symmetry in at least one propagation direction of the groove structure.