3D Display Measuring Device Using Rotating Lens Modules
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Solution Overview
Problem
Conventional display measuring devices are inadequate for measuring 3D displays as they fail to account for the parallax and varying luminance or chromaticity observed by each eye at different distances, which is essential for simulating the human viewing experience.
Innovation Solution
A display measuring device comprising a photosensitive unit, rotation plane mirrors, lens modules, and an optic reflecting unit that project and reflect images from a 3D display to simulate human eye viewing conditions, allowing for the detection of luminance and chromaticity differences, and accommodating varying distances between the device and the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single lens and fixed sensor are used for measurement, then the device complexity is low, but the measurement precision for 3D displays is insufficient
Solution Approach 1:
The optical system is divided into multiple lens modules (first lens module, second lens module) that can rotate independently to capture images from different angles. Each lens module captures light from a specific direction, enabling the system to measure luminance and chromaticity for both left and right eyes of 3D displays separately, thereby achieving accurate measurement of stereoscopic images.
Solution Approach 2:
The lens modules are designed to rotate around the optical axis according to the measuring distance. This dynamic adjustment allows the system to maintain proper measurement angles when the distance between the measuring device and the display changes, ensuring accurate capture of parallax effects at different viewing distances.
2Adaptability or versatility
If the measuring device is fixed at a single distance, then the device structure is simple, but the adaptability to different viewing distances is poor
Solution Approach 1:
The lens modules rotate around the optical axis based on the measuring distance. When the distance between the measuring device and the display changes, the lens modules adjust their rotation angles accordingly, allowing the system to maintain accurate measurement capabilities across different viewing distances and simulate various eye positions.
Solution Approach 2:
The measuring device is designed to measure both conventional 2D displays and 3D displays with different viewing distances. By incorporating rotatable lens modules that can capture images from multiple angles, the system achieves universal applicability for different display types and measurement scenarios.
3Adaptability or versatility
If conventional single-lens measurement is used, then the manufacturing cost is low, but the ability to capture parallax and simulate human eye viewing is insufficient
Solution Approach 1:
The optical system uses multiple lens modules that can rotate independently to capture images from different angles corresponding to left and right eye positions. This segmentation enables the system to measure luminance and chromaticity for each eye separately, accurately capturing the parallax effect essential for 3D display evaluation.
Solution Approach 2:
The rotating lens modules act as intermediaries between the display and the sensor, capturing light from different angular positions. This intermediary mechanism enables the system to simulate human binocular viewing by capturing images that represent what each eye would see, thereby measuring the 3D display's ability to create depth perception.
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 accurate measurement of luminance and chromaticity for 3D displays by simulating human eye perspectives, reducing manufacturing costs and effectively capturing left-eye and right-eye frames simultaneously, thereby addressing the limitations of conventional devices.
Implementation Method 1
The first rotation plane mirror is configured to reflect the projected first incident image from the first lens module as the third incident image to the optic reflecting unit
Implementation Method 2
The second rotation plane mirror is configured to reflect the projected second incident image from the second lens module as the fourth incident image to the optic reflecting unit
Implementation Method 3
The optic reflecting unit is configured to reflect a third incident image and a fourth incident image to the photosensitive unit
Data Source
AI summary
A display measuring device for measuring a display, includes a photosensitive unit, a first rotation plane mirror, a second rotation plane mirror, a first lens module, a second lens module, and an optic reflecting unit. The first lens module projects a first incident image from the display to the first rotation plane mirror. The first rotation plane mirror reflects the projected first incident image from the first lens module to the optic reflecting unit. The second lens module projects a second incident image from the display to the second rotation plane mirror. The second rotation plane mirror reflects the projected second incident image from the second lens module to the optic reflecting unit. The optic reflecting unit reflects the reflected first incident image to the photosensitive unit, and reflects the reflected second incident image to the photosensitive unit.