Projection Module Adapter for Vehicle Rear Pilot Light Integration
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Solution Overview
Problem
Current vehicle rear pilot lights do not integrate both signalling lenses and image projection modules on the same support, limiting their functionality and requiring separate designs for different vehicle models.
Innovation Solution
An image projection module with a Micro Lens Array (MLA) assembly and an adapter that allows the projection module to be coupled to the signalling lens housings, enabling oblique image projection towards the ground, while using identical components for various vehicle models by varying the adapter geometry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If signalling lenses and image projection modules are integrated on the same support, then functionality is improved, but device complexity increases
Solution Approach 1:
The device is divided into separate functional modules: a signalling module with signalling lenses and an image projection module with MLA assembly, both mounted on the same support structure. This segmentation allows independent optimization of each function while achieving integrated functionality.
Solution Approach 2:
The support structure is designed to accommodate both signalling lenses and the image projection module, creating a universal mounting platform that enables multiple functions (signalling and projection) to coexist on a single rear pilot light assembly.
2Manufacturing precision
If separate designs are used for different vehicle models, then manufacturing precision is maintained, but logistics complexity increases
Solution Approach 1:
A universal adapter design with standardized coupling means is implemented that can be used across different vehicle models. The adapter geometry varies to accommodate different pilot light positions, but the core components (support, MLA assembly, electronics) remain identical, simplifying logistics while maintaining precision.
Solution Approach 2:
The adapter geometry parameters are modified for different vehicle models to accommodate variations in pilot light positions and orientations, while the fundamental design and component specifications remain unchanged, allowing standardized manufacturing with minimal model-specific variations.
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 simultaneous signalling and image projection functions in a single rear pilot light, simplifying logistics and design by using identical components across different vehicle models.
Implementation Method 1
at least one input lens, which can be either an array of input microlenses or a single collimator, the function of which is to direct the light beams parallel and in a direction perpendicular to its rear light extraction surface
Implementation Method 2
output lenses (specifically, an array of output microlenses aligned with one of the plurality of elements to be projected that form the array of elements of the mask to be projected and, as appropriate, with one of the input microlenses), the function of which is to project the image at the same point
Data Source
Figure 1~3
Figure 4~5
AI summary
A first aspect of the present invention relates to an image projection module (10) suitable for vehicle rear pilot lights, the rear pilot lights being of the type comprising therein a support (40) equipped with at least one housing (41) to support signalling lenses (5), the projection module (10) comprising an MLA assembly (1) suitable for executing an image projection function, and comprising an adapter (3) equipped with coupling means (31) configured to be coupled to one of the housings (41) of the support (40) of a rear pilot light and support means (32) configured to support the MLA assembly (1) in a position in which the direction of image projection is directed towards the ground, the external surface of the output lenses being oblique with respect to the plane defined by the coupling means (31). A second aspect of the present invention relates to a signalling and projection assembly (100) comprising said projection module (10).