Decorated Molded Article 3D Appearance via Layered Optical Projection
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Solution Overview
Problem
Conventional molded resin articles and injection-molded articles fail to effectively create a three-dimensional appearance, with existing methods either lacking depth or brightness, but not achieving a convincing three-dimensional effect.
Innovation Solution
A decorated molded article is created with a transparent resin layer on the front side and a projection layer, combined with a screen layer on the back side, where the projection layer's image is projected onto the screen layer, creating a three-dimensional appearance when viewed from a specific angle, and optionally enhanced with a cover layer that blends with the surrounding color.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a transparent resin layer with characters on the back side is used, then the characters appear embossed with apparent thickness, but the three-dimensional appearance is insufficient
Solution Approach 1:
The invention transitions from conventional two-dimensional printing to a three-dimensional optical effect by introducing a transparent resin layer that creates apparent depth. The projection layer on the front surface and screen layer on the back surface work together with the transparent resin layer's thickness to produce genuine three-dimensional visual effects, moving beyond mere embossed appearance.
Solution Approach 2:
The transparent resin layer acts as an optical intermediary between the projection layer and screen layer. It transmits and refracts light to create the three-dimensional appearance, serving as a mediator that enables the optical interaction between the front and back layers to produce the desired visual effect.
2Illumination intensity
If a transparent resin layer with gradation printing and metallic vapor deposition is used, then brightness and jewelry-like appearance are achieved, but the three-dimensional appearance is insufficient
Solution Approach 1:
The invention combines multiple materials and layers with different optical properties: transparent resin material, projection layer material, and screen layer material. This composite structure integrates the brightness-enhancing properties of metallic vapor deposition with the three-dimensional optical effects of the layered transparent structure, achieving both brightness and genuine three-dimensional appearance simultaneously.
3Manufacturing precision
If the transparent resin layer thickness is increased to broaden image width, then more three-dimensional appearance is created, but the device complexity increases
Solution Approach 1:
The invention optimizes the thickness parameter of the transparent resin layer to achieve the desired three-dimensional effect. By carefully selecting and controlling the thickness parameter within a specific range, the invention creates convincing three-dimensional appearance without unnecessarily increasing the overall device complexity or layer structure complexity.
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 effectively produces a three-dimensional appearance that is visually striking and can be designed to appear or disappear depending on the observation angle, enhancing the design effect while maintaining a novel aesthetic.
Implementation Method 1
a transparent resin layer... an image projected from said projection layer is produced on the screen layer
Data Source
AI summary
Decorated molded article creating a three-dimensional appearance is provided. A decorated molded article 1 has a transparent layer 51 arranged on the front side thereof. A projection layer 11 is arranged partly on the front side of the transparent resin layer 51. A screen layer 31 is formed on the back side of the transparent layer 51. An image projected from the projection layer 11 is produced on the screen layer 31. When the decorated molded article 1 is observed from obliquely above, the projection layer 11 and an image 17 are visually recognized simultaneously. Therefore, the projection layer 11 is recognized as if it were three-dimensional.