Vehicle Lamp Lens Spider-Web Pattern for Cost and Efficiency

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Solution Overview

Problem

Current vehicle lamp assemblies are costly to manufacture and lack efficiency in lighting distribution, particularly in overhead console applications.

Innovation Solution

A lamp assembly design featuring a lens with a radial portion and concentric channels forming a spider-web pattern, integrated with a reflector and light source, which includes a base structure with grooves and ridges to enhance light distribution and styling, while being cost-effective to produce.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If traditional lamp assembly designs are used, then manufacturing cost is high, but lighting efficiency and distribution are insufficient

Engineering Contradiction:
Improvemanufacturing costVSAvoidlighting efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The lens is segmented into multiple functional zones including a central portion with flat outer surface, a radial portion with grooves, and concentric channels that intersect the grooves. This segmentation allows each zone to perform specific light distribution functions while simplifying manufacturing processes for each segment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different portions of the lens have different optical properties tailored to their specific functions. The central portion has a flat outer surface for direct light transmission, while the radial portion contains grooves and concentric channels for specific light distribution patterns, creating local quality variations that optimize overall lighting efficiency.

Inventive Principle:
Principle #3Local quality

2Productivity

If complex lens structures are used to improve lighting distribution, then lighting performance is enhanced, but manufacturing complexity increases

Engineering Contradiction:
Improvelighting distribution performanceVSAvoidlens structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Multiple optical functions are merged into a single lens structure. The lens combines the central portion with flat surface, radial grooves, and concentric channels all in one integrated component, eliminating the need for multiple separate optical elements and reducing overall assembly complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The lens design incorporates three-dimensional optical features including radial grooves extending from the center, concentric channels intersecting the grooves, and ridges formed between adjacent grooves. These multi-dimensional structures create complex light distribution patterns from a single lens element, avoiding the need for multiple stacked components.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 design provides efficient and aesthetically pleasing illumination in vehicle compartments by directing light effectively through the use of a spider-web pattern lens and reflector, reducing manufacturing costs and improving lighting performance.

Implementation Method 1

A lamp assembly design featuring a lens with a radial portion and concentric channels forming a spider-web pattern, integrated with a reflector and light source

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 2

A lens for a lamp assembly includes a base structure defining a radial portion including a plurality of grooves extending radially from a central point and a plurality of concentrically aligned channels intersecting the plurality of grooves

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentUS10279738B1Vehicle lamp assembly
Publication Date: 2019.05.07 FORD GLOBAL TECH LLC
  • US10279738B1 patent drawing
  • US10279738B1 patent drawing
  • US10279738B1 patent drawing

AI summary

A lens for a lamp assembly is provided herein. The lens has a radial portion including a plurality of grooves extending radially from a central point and a plurality of concentrically aligned channels intersecting the plurality of grooves. The outer channel and two adjacent grooves define a sector. Each sector includes one or more ridges. A central portion of the lens includes a generally flat outer surface.