Self-Aligning Vision Bracket Assembly for Stable 3D Calibration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing emitter-receiver pairs in electronic devices are prone to misalignment due to external forces, leading to inaccurate dimensional information determination.
Innovation Solution
A self-aligning bracket assembly that maintains a fixed distance between camera modules using a transparent cover with an alignment module, preventing relative movement and ensuring accurate three-dimensional object recognition without recalibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the emitter-receiver pair is fixed in the electronic device, then the spatial relationship between components is maintained, but external forces cause relative shifting leading to calibration errors
Solution Approach 1:
The device is divided into separate functional modules (emitter module, receiver module, bracket assembly) that can move independently. The bracket assembly acts as an independent segment that absorbs external forces through spring elements, preventing these forces from directly affecting the spatial relationship between the emitter and receiver components.
Solution Approach 2:
The bracket assembly serves as an intermediary between the emitter-receiver pair and the electronic device housing. It mediates the transmission of external forces by providing a compliant mounting structure with spring elements that absorb shocks and forces, thereby protecting the calibrated spatial relationship of the optical components.
2Strength
If the bracket assembly is directly attached to the enclosure, then structural support is provided, but alignment precision is compromised due to enclosure deformation under external forces
Solution Approach 1:
The bracket assembly provides localized structural support at specific mounting points while maintaining flexibility through spring elements. This allows the bracket to have sufficient strength to hold the emitter-receiver pair in position while simultaneously allowing it to deform locally under external forces without transmitting these deformations to the optical components.
Solution Approach 2:
The bracket assembly transitions from a static, rigid attachment to a dynamic, compliant structure. The spring elements enable the bracket to adapt its shape and position in response to external forces, maintaining optimal alignment of the optical components while providing necessary structural support.
3Volume of moving object
If the emitter and receiver are positioned close together, then the device size is reduced, but any relative movement causes calibration errors
Solution Approach 1:
The emitter and receiver modules are merged into a single integrated bracket assembly that moves as one unit. This combining of components into a rigid sub-assembly ensures that even when positioned close together to minimize device size, the relative spatial relationship between emitter and receiver remains constant, preventing calibration errors while maintaining compact dimensions.
Data Source
AI summary
An electronic device that includes a vision system carried by a bracket assembly is disclosed. The vision system may include a first camera module that captures an image of an object, a light emitting element that emits light rays toward the object, and a second camera module that receives light rays reflected from the object. The light rays may include infrared light rays. The bracket assembly is designed not only carry the aforementioned modules, but to also maintain a predetermined and fixed separation between the modules. The bracket assembly may form a rigid, multi-piece bracket assembly to prevent bending, thereby maintaining the predetermined separation. The electronic device may include a transparent cover designed to couple with a housing. The transparent cover incudes an alignment module designed to engage a module and provide a moving force that aligns the bracket assembly and the modules to a desired location in the housing.