Integrated Vehicle Light Optical Element for Precision Assembly

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Solution Overview

Problem

Existing vehicle light modules face complications in assembly, precision errors, and difficult dimming due to the complexity of their optical systems and component precision.

Innovation Solution

A vehicle light optical element with a light incident portion, a light transmission portion, and a light emergent portion, where the light incident structures are arranged in a matrix and form a biconvex lens structure, allowing for adaptive light distribution without the need for additional supporting devices, simplifying assembly and reducing size while maintaining precision.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple primary optical elements and secondary optical elements are used to achieve high beam and low beam switching, then the lighting functions are enhanced, but the assembling relationship becomes complicated and the device complexity increases

Engineering Contradiction:
Improvelighting functionsVSAvoidassembling relationship
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple optical elements (reflector, light guide, and lens) into a single integrated optical element. The reflector, light guide, and lens are formed as one piece through injection molding, eliminating the need for separate assembly of these components. This merging approach maintains the complex lighting functions while significantly simplifying the assembling relationship and reducing device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated optical element serves multiple functions simultaneously: the reflector portion redirects light, the light guide portion distributes light, and the lens portion focuses or diverges light. This single multi-functional component replaces what would traditionally require multiple separate components, thereby enhancing lighting functions while reducing assembly complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple optical elements are used to achieve different lighting functions, then the lighting versatility is improved, but the manufacturing precision requirements increase and precision errors become larger

Engineering Contradiction:
Improvelighting functionsVSAvoidoptical system precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

By merging the reflector, light guide, and lens into a single injection-molded component, the patent eliminates the cumulative precision errors that would arise from assembling multiple separate optical elements. The monolithic structure ensures consistent optical performance and reduces manufacturing precision requirements compared to multi-component assemblies.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If a conventional multi-component optical system is used, then the lighting functions are comprehensive, but the number of components increases and the device size becomes larger

Engineering Contradiction:
Improvelighting functionsVSAvoidoptical element size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent merges the reflector, light guide, and lens into a single integrated optical element, significantly reducing the overall volume required for the optical system. This consolidation eliminates the space needed for multiple separate components and their interconnections, thereby reducing device size while maintaining comprehensive lighting functions.

Inventive Principle:
Principle #5Merging (Combining)

4Adaptability or versatility

If multiple optical elements with complex assembling relationships are used, then the lighting functions are enhanced, but the dimming control becomes difficult

Engineering Contradiction:
Improvelighting functionsVSAvoiddimming control
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

By integrating the light guide portion directly with the lens and reflector in a single component, the patent simplifies the optical path and makes dimming control more straightforward. The integrated structure allows for easier implementation of dimming mechanisms compared to complex multi-element assemblies where light paths are more difficult to control.

Inventive Principle:
Principle #5Merging (Combining)

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 solution simplifies the assembly process, reduces precision errors, and allows for adaptive light distribution, enhancing the optical system's precision and reducing the size of the vehicle light optical element while meeting light distribution requirements.

Implementation Method 1

a light transmission portion (11) and a light emergent portion (12); a rear end and a front end of the light transmission portion (11) in a light emergent direction are used as a light incident end and a light emergent end, respectively

Methodology Applied
Scientific EffectLight transmission: Refraction

Data Source

PatentUS11306891B1Vehicle light optical element, vehicle light module, vehicle headlight and vehicle
Publication Date: 2022.04.19 HASCO VISION TECHNOLOGY CO LTD
  • US11306891B1 patent drawing
  • US11306891B1 patent drawing
  • US11306891B1 patent drawing

AI summary

An vehicle light optical element (1) related to the technical field of vehicle lighting. The optical vehicle light element (1) comprises a light incident portion (10), a light transmission portion (11), and a light emitting portion. Two ends on the light transmission portion (11) in a light emitting direction are respectively a light incident end and a light emitting end. The light incident portion (10) comprises at least one light incident structure (13) provided at the light incident end of the light transmission portion (11) and corresponding to a light source (20). The light emitting portion comprises a light emitting surface (12) protruding from the light emitting end of the light transmission portion (11) towards the light emitting direction. A cross-sectional area of the light transmission portion (11) gradually increases from the light incident end to the light emitting end. The light incident portion (10) and the light emitting portion of the vehicle light optical element (1) are provided on the same optical structure. Therefore, no optical path needs to be built, and an assembly relationship is simple, thereby simplifying the structure of the vehicle light optical element (1), and improving optical system precision of the vehicle light optical element (1).