Spectroscope Support Structure for Optical Path Stability
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Solution Overview
Problem
Existing spectrometers face challenges in miniaturization without compromising detection accuracy, as further miniaturization tends to decrease detection accuracy due to positional variances between the dispersive part and the light detection part.
Innovation Solution
The spectrometer design incorporates an optical path within the space formed by the light detection element and the support, with wiring positioned on the support to minimize distortion from external forces. This configuration includes a depression for the dispersive part and strategic placement of reflection parts to maintain accurate light concentration on the light detection part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the spectrometer is further miniaturized, then the device size is reduced, but detection accuracy decreases due to positional variances between the dispersive part and the light detection part
Solution Approach 1:
The support integrates multiple functions: it supports the dispersive part, light detection part, and wiring; defines the optical path space; and provides structural stability. This merging reduces the number of separate components, enabling miniaturization while maintaining precise positional relationships through the unified support structure.
Solution Approach 2:
The support acts as an intermediary element that stabilizes the relative positions between the dispersive part and light detection part. By providing a rigid foundation with defined optical path space, it mediates the spatial relationship between components, preventing positional variance that would otherwise occur with miniaturization.
2Volume of moving object
If the wiring is positioned close to the light detection part for compact design, then device miniaturization is facilitated, but external forces can more easily distort the optical path
Solution Approach 1:
The wiring is routed through the thickness dimension of the support, extending from the light detection part side to the opposite side. This three-dimensional routing allows the wiring to be positioned close to the light detection part for compactness while using the support's structural depth to shield it from external forces, maintaining optical path stability.
Solution Approach 2:
The support serves as a protective intermediary that shields the wiring and optical path from external forces. By positioning the wiring within the support structure and using the support's rigid framework, it mediates between the need for compact wiring placement and the requirement for optical path stability.
3Ease of manufacture
If the dispersive part is directly supported without additional structures, then manufacturing is simplified, but external forces can distort the optical path and reduce detection accuracy
Solution Approach 1:
The support integrates the dispersion support function with the overall structural framework, combining multiple functions into a single component. This merging maintains manufacturing simplicity while the integrated structure provides inherent stability to protect the optical path from external forces, ensuring detection accuracy.
Solution Approach 2:
The support acts as a protective intermediary that shields the dispersive part and optical path from external forces. By incorporating the dispersive part support within the unified support structure, it mediates between manufacturing simplicity and the need for optical path stability, preventing distortion while maintaining ease of manufacture.
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
This design allows for miniaturization of the spectrometer while maintaining detection accuracy by reducing positional variances and minimizing external influences on the optical path.
Implementation Method 1
a dispersive part (40) that disperses and reflects the light (L1, L2) passing through the light passing part (21)
Implementation Method 2
a first reflection part (11) that reflects the light (L1) passing through the light passing part (21)
Implementation Method 3
a second reflection part (12) that reflects the light (L2) dispersed by the dispersive part (40) to the light detection part (22)
Data Source
Figure 1
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Figure 3
AI summary
A spectrometer 1A includes a light detection element 20 having a substrate 24 made of a semiconductor material, a light passing part 21 provided in the substrate 24, and a light detection part 22 put in the substrate 24, a support 30 having a base wall part 31 opposing the light detection element 20, and side wall parts 32 and 33 integrally formed with the base wall part 31, the light detection element 20 being fixed to the side wall parts 32 and 33, the support being provided with a wiring 13 electrically connected to the light detection part 22, and a dispersive part 40 provided on a surface 31a of the base wall part 31 on a side of a space S. An end part 13a of the wiring 13 is connected to a terminal 25 of the light detection element 20. An end part 13b of the wiring 13 is positioned on a surface 31b in the base wall part 31 on an opposite side from the side of the space S.