Holographic Manual Control Interface for Integrated Detection and Display
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Solution Overview
Problem
Existing manual control interfaces for motor vehicle dashboards cannot simultaneously detect and display the selected function effectively, lacking a means to visually represent the chosen settings to the user.
Innovation Solution
A manual control interface that incorporates a movable member with a mobile holographic element, using a series of holograms to project both coding and figurative patterns, allowing detection and display of selected functions with a single light source, and optionally utilizing separate light sources for detection and display to enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional control interface with separate detection and display components is used, then the detection of selected function can be achieved, but the display of selected function cannot be effectively integrated
Solution Approach 1:
The patent merges the detection and display functions into a single integrated system. The mobile holographic element simultaneously provides coding patterns for detection by the photo-detector and figurative patterns for visual display to the user. This combination eliminates the need for separate detection mechanisms and display devices, directly resolving the technical contradiction between integration capability and device complexity.
Solution Approach 2:
The mobile holographic element serves multiple functions: it acts as both the detection target for position sensing and the display medium for function visualization. By making this single component universal, the system achieves both detection and display capabilities without adding separate specialized components, thereby improving adaptability while controlling complexity.
2Reliability
If multiple separate components are used for detection and display, then reliable detection can be achieved, but the interface becomes less compact and more complex
Solution Approach 1:
The patent combines detection and display into the mobile holographic element, maintaining reliability through the photo-detector's accurate reading of coding patterns while integrating the display function. The holographic element's dual-pattern design ensures that detection reliability is preserved even as the interface structure becomes more compact and integrated.
Solution Approach 2:
The holographic element creates optical copies of information in two forms: coding patterns that convey positional data to the photo-detector and figurative patterns that display function information to the user. This copying mechanism allows a single physical component to fulfill multiple roles reliably without requiring separate hardware for each function.
3Device complexity
If a single light source is used for both detection and display, then the interface is more compact, but the light power distribution must be optimized for both functions
Solution Approach 1:
The holographic element is designed with different regions having distinct optical properties: some areas contain coding patterns optimized for photo-detector detection, while other areas contain figurative patterns optimized for human visual display. This local differentiation allows a single light source to effectively serve both functions by directing appropriate light intensity and distribution to different zones of the holographic element.
Solution Approach 2:
The system optimizes light power distribution by adjusting parameters such as light source intensity, wavelength, and angular distribution. The holographic element's design incorporates parameter optimizations that enable efficient light utilization for both detection and display functions from a single light source, managing the energy distribution challenge through precise optical parameter control.
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
Enables efficient detection and display of selected functions with a compact interface, using few components and optimizing light distribution for improved visibility and sensitivity, reducing the need for additional switches and contacts, thus enhancing user interaction and interface reliability.
Implementation Method 1
a mobile holographic element whose displacements are linked to the displacements of the mobile member in the direction of selection, comprising a first series of holograms forming coding patterns of the selection position of the movable member relative to the support able to be projected towards the photo-detector when they are illuminated by a suitable light beam
Implementation Method 2
the mobile holographic element comprises a second series of holograms forming figurative patterns representing the functions of the device, the position of the mobile holographic element relative to the support determining the figurative pattern which is illuminated by a beam adapted light, so as to project the figurative pattern corresponding to the selected function towards a display area visible to the user
Data Source
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AI summary
Manual control interface (10) comprising: - a mobile member (14), - a photodetector (28), - a mobile holographic element (32) comprising a first series of holograms forming patterns (MCi) for coding the selection position of the mobile member (14), characterized in that the mobile holographic element (32) comprises a second series of holograms forming figurative patterns (MFi) representing the functions (FTi) of the apparatus, the position of the mobile holographic element (32) with respect to the support (18) determining the figurative pattern (MFi) which is illuminated by a suitable light beam (FL1), in such a way as to project the figurative pattern (MFi) corresponding to the selected function (FTi) to a display zone (38) visible to the user.