Light Guide Lens with Segmented Light Control Units
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Solution Overview
Problem
Conventional light guide lenses for vehicular and other illumination devices lack innovative structures to effectively distribute light patterns, resulting in unsatisfactory optical projection patterns.
Innovation Solution
A light guide lens with a bowl-shaped design featuring a base portion and a light guide portion that includes interconnected light control units with stepped and smooth reflecting surfaces, guiding light through multiple reflections to create distinct bright and dim stripes, forming a unique optical projection pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional bowl-shaped light guide lens with uneven surfaces is used, then light can be guided and distributed, but the optical projection pattern is limited to simple annular bright and dim stripes without sufficient variety
Solution Approach 1:
The light guide lens is divided into multiple light control units (first, second, and third light control units) with different surface configurations. Each unit segments the light path and creates distinct bright and dim stripe patterns, enabling diverse light distribution patterns from a single lens structure.
Solution Approach 2:
Different portions of the lens have different surface properties: the first light control unit has an uneven front surface, the second has an uneven rear surface, and the third has both uneven front and rear surfaces. This local differentiation creates varied light reflection and transmission characteristics, producing complex optical projection patterns.
2Adaptability or versatility
If multiple light control units with different surface configurations are introduced, then the optical projection pattern becomes more varied and distinctive, but the manufacturing complexity increases
Solution Approach 1:
Multiple light control units with different surface configurations are integrated into a single lens body. The first, second, and third light control units are combined in one lens structure, allowing simultaneous creation of multiple light patterns while reducing the need for separate components and assembly steps.
Solution Approach 2:
The lens structure is designed to perform multiple functions: it guides light, creates various bright and dim stripe patterns, and can be applied to different illumination devices (vehicular lamps, decorative lighting, advertising light boxes). This multi-functionality justifies the structural complexity by providing versatile applications.
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 lens generates a radiated and variegated special optical projection pattern with enhanced light distribution, suitable for vehicular lamps, lighting apparatus, signal lights, and advertising light boxes, offering an innovative solution beyond prior art.
Implementation Method 1
A portion of the light emitted from the light emitting element enters the first light guide section through the light incident surface and is reflected subsequently by the first reflecting surface as to exit the first light exiting surface. Another portion of the light emitted from the light emitting element enters the second light guide section through the light incident surface and is reflected multiple times by the second reflecting surface and the third reflecting surface as to exit the second light exiting surface.
Data Source
AI summary
This invention relates to a light guide lens adapted for guiding light emitted from a light emitting element. The light guide lens includes a base portion disposed on a light axis (L) and including a light incident surface, and a light guide portion surrounding the light axis (L) and disposed on the periphery of the base portion. The light guide portion includes an inner peripheral edge connected to the base portion, an outer peripheral edge opposite to the inner peripheral edge, and at least one light control unit connecting the inner and outer peripheral edges and having first and second light guide sections so as to form a varied light pattern.