Lens Mapping Alignment Layout to Eliminate Beam Shadow Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lens mapping machines suffer from shadow interference due to the aligner being in the path of the light beam, leading to inaccurate measurements, and have complex structural designs that require precise alignment after gripping.
Innovation Solution
A machine with an alignment system that positions the glasses away from the light beam path, using a movable supporting system independent of the gripping system to achieve alignment, allowing the lens to be locked in position and shifted for measurement without intercepting the light beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the aligner is placed in the path of the light beam to perform lens alignment, then the alignment function is achieved, but shadow interference occurs causing measurement inaccuracy
Solution Approach 1:
The patent extracts the alignment system from the light beam path, placing it laterally adjacent to the optical axis. The aligner with its three prongs remains positioned next to the beam rather than in it, eliminating shadow interference while maintaining alignment capability through lateral positioning.
Solution Approach 2:
The patent introduces an intermediary mechanism - a movable support structure with multiple degrees of freedom - that transfers the aligned lens from the alignment position to the measurement position without the aligner itself blocking the light beam. This mediator enables the lens to be positioned correctly without the aligner intercepting the beam.
2Adaptability or versatility
If a gripping system with multiple degrees of freedom is used to adapt glasses to measurement position, then alignment flexibility is improved, but structural complexity increases
Solution Approach 1:
The patent segments the system into functionally independent parts: a gripping system for holding the glasses frame, a separate movable support structure for positioning the lens, and an alignment system with prongs. Each component performs its specific function without requiring the others to be equally complex, reducing overall system complexity while maintaining adaptability.
Solution Approach 2:
The patent employs dynamic elements including a movable support structure that can shift laterally and rotate, and a gripper with rotational and translational freedom. These dynamic components allow the system to adapt to different glasses configurations without requiring a completely reconfigurable complex mechanism.
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 provides precise lens mapping by eliminating shadow interference and simplifies the structural design, enabling accurate measurements and easy alignment without the need for complex systems.
Implementation Method 1
The machine provides for the emission of a light beam that passes through the lens of the glasses at a point
Implementation Method 2
The beam that has passed through the lens is intercepted by a receiving system that uses the well-known Hartmann matrix
Data Source
Figure 1
Figure 2
Figure 3
AI summary
This invention relates to a machine for measuring the optical properties of lens belonging to a pair of glasses comprising: - A light emitting system for emitting a light beam; - A receiver arranged for receiving said light beam; - An alignment system configured to align said glasses lens according to a predetermined measuring position; - A gripping system configured to carry out the gripping of said glasses; - A supporting system on which the glasses or single lens are placed in use; - Said alignment system is arranged at a distance from the emitter in such a way that at least the lower support element is not intercepted by the light beam, the gripping system is in closed configuration once the alignment has been carried out and then is performed a subsequent shifting of the support structure to bring the glasses lens under said emitter.