Dimming Tester Station Angular Testing Motion Stage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional dimming tester stations are inadequate for evaluating the angular dependency, spectral uniformity, and polarization of dimming lenses, particularly for augmented reality/virtual reality glasses, and lack capabilities to measure distortion and modulation transfer function.
Innovation Solution
A dimming tester station with a motion stage that allows adjustable and rotatable positioning of optical objects relative to cameras and light emitting panels, enabling comprehensive testing of transmittance, uniformity, and polarization, including angular and spectral analysis, using a display panel to emit uniform or patterned light and a controller for time-lapsed image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional light panel is used for testing, then the testing setup is simple, but it is impossible to produce uniform light with different colors, brightness or patterns
Solution Approach 1:
The patent applies universality by using a display panel that can produce multiple types of light patterns (uniform light, different colors, brightness levels, and various patterns) from a single device, replacing the need for multiple specialized light sources and enabling comprehensive optical testing capabilities in one setup
2Measurement precision
If only orthogonal views are tested, then the testing process is straightforward, but it cannot evaluate angular dependency of dimming glasses
Solution Approach 1:
The patent applies dynamics by implementing a motion stage that can dynamically adjust the position and orientation of the optical object, allowing the system to test not only orthogonal views but also various angular views, thereby enabling comprehensive evaluation of angular dependency
Solution Approach 2:
The patent extends testing from a single orthogonal dimension to multiple dimensions by introducing angular variations through the motion stage, allowing evaluation of optical performance in both orthogonal and oblique viewing directions
3Measurement precision
If fixed position testing is used, then the setup is simple, but it cannot evaluate distortion and modulation transfer function
Solution Approach 1:
The patent applies dynamics by enabling the optical object to be positioned at various distances from the camera through the motion stage, allowing for dynamic adjustment of object distance to evaluate distortion and modulation transfer function at different viewing conditions
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 comprehensive testing of dimming lenses for angular, spectral, and polarization performance, allowing for the evaluation of transmittance and uniformity at various angles and light spectra, and the measurement of distortions, thereby ensuring accurate performance evaluation and correction.
Implementation Method 1
a light emitting panel configured to emit light through a front surface disposed in a second plane
Implementation Method 2
at least one camera with an entrance pupil of the at least one camera disposed in a first plane
Data Source
AI summary
A dimming tester station for testing an optical object, the optical object disposed along an axis represented by a central axis of the optical object, the dimming tester station including a motion stage for supporting the optical object, wherein the optical object is disposed between at least one camera with an entrance pupil of the at least one camera disposed in a first plane and a light emitting panel configured to emit light through a front surface disposed in a second plane, the central axis is substantially perpendicular to the first plane and the second plane, the entrance pupil of the at least one camera is disposed in an orientation facing at least a portion of the front surface, the motion stage is configured to be adjustable such that the location of the optical object from each of the first plane and the second plane is alterable.