Light Diffraction Element Mounting for Planar Film Stability
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Solution Overview
Problem
Existing optical computing devices using light diffraction elements face challenges in maintaining the planar shape of a flexible resin film base material due to its inherent flexibility, which affects the accuracy and stability of optical computations.
Innovation Solution
A light diffraction element unit is designed with a flexible base material and a holding part that encompasses the light diffraction structure, using a layer member with an opening to maintain the planar shape, and an optical computing device is constructed with multiple such units housed in a configuration that supports their alignment and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a flexible resin film is used as the base material to achieve small thickness (satisfying D ≤ 60 μm), then the thickness requirement is met, but the planar shape of the main surface cannot be correctly maintained
Solution Approach 1:
A holding part is introduced as an intermediary component to support the flexible resin film base material. The holding part includes a rigid backing structure with an opening that penetrates through it, providing mechanical support to maintain the planar shape of the resin film while allowing the light diffraction structure to function. This mediator resolves the contradiction by enabling the thin flexible film to maintain its shape without requiring increased thickness.
2Stability of the object's composition
If the holding part structure is added to maintain planar shape, then the shape stability is improved, but the device complexity increases
Solution Approach 1:
The light diffraction element unit is segmented into distinct functional components: the flexible resin film base material containing the light diffraction structure, and a separate holding part with an opening. This segmentation allows each component to be optimized independently - the resin film can be kept thin and flexible for optical performance, while the holding part provides the necessary structural support. The modular design reduces overall complexity compared to creating a single integrated structure.
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 maintains the planar shape of the base material, ensuring accurate optical computations and reducing stray light emission, thereby enhancing the performance and reliability of the optical computing device.
Implementation Method 1
a light diffraction structure that is formed on one of main surfaces of the base material... The light diffraction structure optically executes predetermined computing by causing mutual interference of signal light beams that have passed through the respective microcells
Implementation Method 2
causing mutual interference of signal light beams that have passed through the respective microcells
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
In order to provide a light diffraction element unit that, by itself, easily maintains a planar shape of a main surface of a base material, a light diffraction element unit (U) includes: a base material (11) that is in a layer form; a light diffraction structure (12) formed on a portion (central portion 113) of one main surface (111) of the base material (11); and a holding part (20) that is provided with an opening (23) and that holds an annular portion (114) so that the light diffraction structure (12) is encompassed in the opening (23), the annular portion (114) surrounding the portion (central portion 113) of the base material (11).