Vehicle Lamp Patterning Device with Light Deflecting Portions
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Solution Overview
Problem
Existing lighting and signaling devices, such as vehicle lamps, face challenges in generating diverse patterns with high optical efficiency due to the use of opaque materials that reduce light transmission.
Innovation Solution
An optical indicating device featuring a patterning unit with light deflecting portions, such as circular arc-shaped or triangular profiles, that refract light beams to form patterns, allowing for adjustable distances between light sources and patterning units to create various indicating patterns with high optical efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If opaque materials are used to generate patterns by shielding light beams, then pattern generation is achieved, but optical efficiency is reduced
Solution Approach 1:
The patent introduces a transparent or translucent patterning layer as an intermediary between the light source and the environment. This layer contains light deflecting portions that redirect light to form patterns without completely blocking it, thereby maintaining high optical efficiency while achieving the desired pattern generation effect.
Solution Approach 2:
The patent replaces the mechanical/optical blocking approach (using opaque materials to shield light) with a light redirection approach (using light deflecting portions to guide light). This substitution transforms the mechanism from absorption/blocking to refraction/reflection, significantly improving optical efficiency.
2Manufacturing precision
If light deflecting portions with small widths are used, then pattern precision is improved, but manufacturing difficulty increases
Solution Approach 1:
The patent specifies optimal parameter ranges for the light deflecting portions, particularly width between 0.01-5mm and height between 0.1-10mm. By establishing these parameter boundaries, the invention balances pattern precision with manufacturability, avoiding excessively small dimensions that would be difficult to manufacture while still achieving fine pattern control.
Solution Approach 2:
The patent employs circular arc-shaped profiles for the light deflecting portions instead of sharp edges or complex geometries. This curved design simplifies manufacturing processes while maintaining precise light control, as curved surfaces are easier to form and polish than intricate angular features.
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 device achieves high optical efficiency in generating diverse patterns by refracting light beams through a series of light deflecting portions, offering flexible pattern creation and reduced manufacturing costs, while maintaining consistent light intensity and display effects.
Implementation Method 1
a plurality of light deflecting portions arranged adjacent to each other are formed on a side of the patterning unit facing towards the light source or facing away from the light source
Data Source
AI summary
An optical indicating device, a vehicle lamp including the optical indicating device, and a motor vehicle are provided. The optical indicating device includes: at least one light source emitting a light beam; and a patterning device arranged to form an indicating pattern when a light beam emitted from the light source is transmitted through the patterning device; the patterning device includes an patterning unit arranged to pattern the light beam, and a plurality of light deflecting portions arranged adjacent to each other are formed on a side of the patterning unit facing towards the light source or facing away from the light source.