Iridescent Vehicle Badges via Integral Diffraction Gratings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for vehicle badges that exhibit an iridescent or jewel-like appearance without significant cost increases, while maintaining their appearance over the vehicle's lifetime and resisting environmental exposure.
Innovation Solution
The use of translucent, polymeric badges with integral diffraction gratings having specific thickness and period ranges, combined with a non-specular, light-scattering backing layer, provides an iridescent effect without the need for precious metals or jewels, and can be injection molded at a marginal cost increase compared to conventional badges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If jewels and precious metals are incorporated into vehicle badges, then a luxurious jewel-like appearance is achieved, but manufacturing cost increases significantly
Solution Approach 1:
The patent uses diffraction gratings to create optical effects that copy and simulate the appearance of jewels and precious metals. The grating structure diffracts light to produce iridescent, rainbow-like colors and sparkle effects that mimic the visual characteristics of actual jewels, allowing conventional materials to achieve luxurious aesthetics without the cost of real precious materials
Solution Approach 2:
The patent changes the optical parameters of conventional polymeric materials by incorporating diffraction gratings with specific geometries (groove depths of 250-1000 nm and periods of 50 nm to 5 microns). These parameter changes in the microstructure enable the material to diffract light and produce jewel-like visual effects, transforming ordinary plastic into an aesthetically superior product without changing the base material composition
2Illumination intensity
If jewels and precious metals are incorporated into vehicle badges, then a luxurious appearance is achieved, but the badge becomes more susceptible to theft
Solution Approach 1:
The patent creates visual copies of jewel characteristics through diffraction grating structures rather than using actual jewels. This allows the badge to display luxurious optical effects that deter theft by appearance alone, while the underlying material remains conventional and less valuable to thieves
Solution Approach 2:
The patent uses inexpensive conventional polymeric materials instead of valuable precious materials. While the aesthetic effect may be temporary or weather-dependent, the low cost and non-valuable nature of the base materials means the badge is not a target for theft, as thieves cannot extract valuable materials from it
3Ease of manufacture
If faceted plastic badges are used to approximate diamonds and jewels, then manufacturing cost is reduced, but the aesthetic quality deteriorates to resemble costume jewelry
Solution Approach 1:
The patent transforms conventional faceted plastic badges by incorporating diffraction gratings with precisely controlled micro-geometric parameters (groove depths of 250-1000 nm, periods of 50 nm to 5 microns). These parameter changes in the surface structure enable the plastic to diffract light and produce genuine iridescent, rainbow-like colors and sparkle effects, elevating the aesthetic quality from costume jewelry appearance to genuine jewel-like appearance while maintaining low manufacturing costs
Solution Approach 2:
The patent creates a composite structure by combining conventional polymeric materials with diffraction grating microstructures. This composite approach integrates the manufacturing advantages of molded plastic with the optical properties of diffraction gratings, achieving both cost-effectiveness and high aesthetic quality that neither material could achieve alone
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 an iridescent, jewel-like appearance through light diffraction, maintaining optical clarity and durability, while being cost-effective and resistant to environmental wear, thus enhancing the aesthetic appeal of luxury vehicles without the risks associated with valuable materials.
Implementation Method 1
at least one of the surfaces of the badge is non-planar and comprises a diffraction grating integral with the badge
Implementation Method 2
a non-specular, light-scattering backing layer applied to the interior surface of the badge
Data Source
AI summary
An iridescent vehicle badge (and methods for making it) that includes a translucent, polymeric badge having a non-planar shape and comprising an interior and an exterior surface. Further, at least one of the surfaces of the badge comprises a plurality of diffraction gratings that are integral with the badge, each having a thickness from 250 nm to 1000 nm and a varying period from 50 nm to 5 microns. In some cases, the thickness can range from 500 nm to 750 nm. The period, in some cases, can vary within a set of discrete values in one or more portions of the at least one of the surfaces of the badge, e.g., from 150 nm to 400 nm.