Integrated Rear Light Diffuser Fins for Vehicle Personalization

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Solution Overview

Problem

Existing aftermarket vehicle lamps and diffusers are complicated to modify and manage simultaneously, lacking integrated aerodynamic and aesthetic enhancements.

Innovation Solution

A rear light and diffuser apparatus with a housing, light panel, diffuser fins, and power cord that integrates both aesthetic and aerodynamic functions, featuring a fan-out design to enhance airflow management and downforce.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate aftermarket lamps and diffusers are installed to achieve aesthetic and aerodynamic personalization, then both aesthetic and performance improvements are obtained, but the modification process becomes complicated and difficult to manage

Engineering Contradiction:
Improvevehicle personalization capabilityVSAvoidmodification process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines separate aesthetic lighting functions and aerodynamic diffuser functions into a single integrated rear light assembly. The housing incorporates both light-emitting components for aesthetic/signaling purposes and diffuser fins for aerodynamic performance, eliminating the need for separate installations and simplifying the modification process while maintaining both personalization and performance improvement capabilities

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The rear light assembly is designed to perform multiple functions simultaneously: aesthetic personalization through customizable lighting, signaling functions for safety, and aerodynamic diffusion to reduce drag and improve downforce. This multi-functional design allows a single component to replace what would traditionally require multiple separate parts, reducing installation complexity while enhancing overall vehicle performance and appearance

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

2Reliability

If traditional separate components are used for lighting and aerodynamics, then each component can be optimized independently, but the overall system becomes more complex and harder to install

Engineering Contradiction:
Improvecomponent optimizationVSAvoidinstallation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent integrates lighting components and diffuser elements into a unified rear light assembly that can be installed as a single unit. This merging maintains the functional optimization of each component while dramatically simplifying installation procedures, as the integrated design requires fewer mounting steps and less alignment adjustment compared to installing separate lamps and diffusers

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

Facilitates easy personalization of vehicles with a single component that combines lighting and diffusing functions, improving aerodynamics and reducing drag while enhancing vehicle performance and aesthetics.

Implementation Method 1

A vehicle diffuser is an aerodynamic device that gradually increases the airflow's cross-sectional area under the car as it exits from beneath the vehicle

Methodology Applied
Scientific EffectDiffusion: Diffusion

Implementation Method 2

This creates a low-pressure zone under the car, which helps to suck the car down to the ground and increase downforce

Methodology Applied
Scientific EffectBernoulli effect: Bernoulli Effect

Implementation Method 3

By smoothing out the airflow under the car, diffusers can help to reduce drag and improve fuel efficiency

Methodology Applied
Scientific EffectDrag reduction: Drag

Implementation Method 4

The light panel comprises at least one of LED light reflector, halogen lamp reflector, and acetylene lamp reflector

Methodology Applied
Scientific EffectLED light emission: Light Emitting Diode

Data Source

PatentUS12479356B2System and method of vehicle diffusing rear light
Publication Date: 2025.11.25 LAW CALVIN
  • US12479356B2 patent drawing
  • US12479356B2 patent drawing
  • US12479356B2 patent drawing

AI summary

A rear light and diffuser apparatus comprising a housing, a light panel that is disposed on a side of the housing, diffuser fins that protrude perpendicular to the light panel and are disposed along the length of the rear light and diffuser apparatus in a fan-out design. The rear light and diffuser apparatus further comprises a power cord that is designed to fit a car's power supply.