Vehicle Lamp Optical Component With a Folded Light Path

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Solution Overview

Problem

Existing vehicle lamp designs face challenges in miniaturization and integration due to manufacturing errors, increased costs, and longer light propagation distances, which are not effectively addressed by prior art solutions.

Innovation Solution

A vehicle lamp optical component utilizing a solid optical conductor with a light-transmitting part and light-emitting part, featuring first and second reflective surfaces that reflect light in sequence to reduce propagation distance and eliminate the need for additional optical components, forming a compact and integrated structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple separate optical components (reflecting component, light-shielding plate, lens, mounting bracket) are used to form the lighting module, then the lighting function can be achieved, but the device complexity increases and manufacturing precision requirements increase

Engineering Contradiction:
Improvelighting functionVSAvoidnumber of parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the reflecting component, light-shielding plate, lens, and mounting bracket into a single integrated optical component. The optical component includes a housing with an integrated reflecting surface, light-shielding plate, and lens that work together as one unified structure, eliminating the need for multiple separate parts and their associated mounting brackets.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated optical component performs multiple functions simultaneously: the housing provides structural support and reflection, the integrated light-shielding plate controls light distribution, and the lens focuses and shapes the light beam. This multi-functional design replaces what previously required multiple specialized components.

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

2Reliability

If multiple separate optical components are assembled together, then the lighting module can be constructed, but manufacturing and assembling errors increase affecting light shape precision

Engineering Contradiction:
Improvelighting functionVSAvoidlight shape accuracy
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

By integrating the reflecting surface, light-shielding plate, and lens into a single molded optical component, the patent eliminates cumulative assembly errors that would occur when multiple separate parts are fitted together. The light path is precisely controlled within the integrated structure without requiring high-precision assembly between multiple components.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If traditional separate components are used, then optical functions are achieved, but the length of the lighting module increases due to long light propagation distance

Engineering Contradiction:
Improveoptical functionVSAvoidlighting module length
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The patent redesigns the light path to fold back on itself within the integrated optical component. The light reflects off the reflecting surface, interacts with the light-shielding plate, and passes through the lens in a compact folded configuration rather than a linear arrangement, significantly reducing the overall length of the lighting module.

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

4Reliability

If additional components like light-shielding plate and mounting bracket are added, then lighting control is improved, but the cost of the lighting module increases

Engineering Contradiction:
Improvelight controlVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines the light-shielding plate with the housing and optical elements into a single integrated component that is molded as one piece. This integration eliminates the need for separate manufacturing and assembly of the light-shielding plate and mounting bracket, reducing part count, assembly steps, and overall manufacturing cost while maintaining precise light control functionality.

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

The solution achieves high integration and miniaturization, reduces manufacturing and assembly errors, and enhances optical precision while simplifying production, thus ensuring stable light shapes and improved space utilization.

Implementation Method 1

a first reflective surface and a second reflective surface; when mounted in a vehicle, the first reflective surface is arranged in front of the light incident surface, and the light-emitting part is arranged in front of the second reflecting surface, the first reflective surface and the second reflective surface are arranged opposite to each other, such that the light received by the light incident surface is directed forward to the first reflective surface, and then is reflected in sequence by the first reflective surface and the second reflective surface

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentEP4170229B1Vehicle lamp optical component, vehicle lamp module, and vehicle
Publication Date: 2025.09.17 HASCO VISION TECHNOLOGY CO LTD
  • EP4170229B1 patent drawingFigure 1~2
  • EP4170229B1 patent drawingFigure 3~4
  • EP4170229B1 patent drawingFigure 5~6

AI summary

Provided are a vehicle lamp optical component, vehicle lamp module, and vehicle; the vehicle lamp optical component comprises a light-transmitting part (2) and a light-emitting part (3); he light-transmitting part (2) comprises a light incident surface (25), a first reflective surface (21) and a second reflective surface (22); the first reflective surface (21) and the second reflective surface (22) are arranged opposite to each other, such that the light received by the light incident surface (25) is reflected in sequence by the first reflective surface (21) and the second reflective surface (22) and then directed toward the light-emitting part (3). The vehicle lamp optical component has a higher degree of miniaturization and integration.