Vehicle Lamp Outer Lens Perforations for Hidden Shape Lighting
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Solution Overview
Problem
Existing vehicle lamp designs face challenges in emitting light to exhibit a specific shape without light leakage, particularly when using color painting methods, which often result in light leakage due to partial transmission between painted layers.
Innovation Solution
A vehicle lamp design featuring a transparent outer lens with a first color-painted layer and a first black-painted layer, where both layers include perforations created by laser punching to allow light emission in a specific shape without leakage, and a manufacturing apparatus using a laser irradiator and fixing jig to form these perforations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If color painting is performed to emit light to exhibit a specific shape, then the aesthetic design is improved, but light leakage occurs between painted layers causing the specific shape to be improperly implemented
Solution Approach 1:
The painted surface is segmented into multiple functional layers: a first color-painted layer for aesthetic appearance and a second black-painted layer for light blocking. By dividing the painting function into separate layers with distinct roles, the system achieves both color display and light leakage prevention, resolving the contradiction between shape emission and light leakage.
Solution Approach 2:
The first color-painted layer acts as an intermediary between the light source and the external environment. It allows light to pass through while providing color, and when combined with the second black-painted layer, creates a controlled light emission system that prevents leakage while maintaining aesthetic appearance.
2Reliability
If a metal thin film deposition method is used to implement hidden lighting technology, then the aesthetic appearance is improved, but it is difficult to emit light only in a portion of a specific shape
Solution Approach 1:
The patent applies different properties to different regions of the lens surface through selective painting. The first color-painted layer provides local color properties in specific patterns, while the second black-painted layer provides local light-blocking properties. This local differentiation enables precise shape emission while maintaining the hidden lighting effect in non-emitting areas.
Solution Approach 2:
The solution combines multiple painting layers with different optical properties (transparent color layer and opaque black layer) to create a composite painted structure. This composite approach allows simultaneous achievement of hidden lighting effect and specific shape light emission, overcoming the limitations of single-method approaches.
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
Enables light emission in a specific shape without light leakage, enhancing the aesthetic and functional aspects of vehicle lamps by preventing light leakage and allowing for precise design implementation.
Implementation Method 1
a laser irradiator configured for irradiating the first color-painted layer and the first black-painted layer with a laser beam to perform the laser punching
Data Source
AI summary
A lamp for a vehicle and a method for manufacturing the same are disclosed. An embodiment of the present disclosure provides a lamp comprising: an outer lens formed of a transparent material and having an inside surface facing a light source inside the lamp; a first color-painted layer, disposed on the inside surface of the outer lens and configured to have a same or similar color as an exterior color of a vehicle body of the vehicle; and a first black-painted layer, which is a different layer than the first color-painted layer and disposed on an inner surface of the first color-painted layer and configured to shield light emitted from the light source located inside the lamp toward the outer lens, wherein the first color-painted layer and the first black-painted layer include at least one first perforation extending through both the first color-painted layer and the first black-painted layer.