Imaging Element Polarizing Members Homogeneity for Accuracy
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Solution Overview
Problem
Conventional imaging devices with multiple polarizing members of different internal structures suffer from accuracy degradation in polarization information due to varying characteristics of polarization pixels.
Innovation Solution
The use of polarizing members with identical internal structures, rotated or symmetrically moved to achieve uniform characteristics, including specific rotational angles and shapes such as squares, octagons, and hexagons, along with light-shielding films and lenses to enhance polarization accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple types of polarizing members with different internal structures are combined, then polarization information can be acquired, but accuracy of polarization information is degraded due to varying characteristics of polarization pixels
Solution Approach 1:
The patent applies homogeneity by using polarizing members with identical internal structures throughout the array. Each polarizing member is formed by rotating or symmetrically moving a reference polarizing member, ensuring uniform characteristics across all polarization pixels. This eliminates the accuracy degradation caused by varying internal structures while maintaining the capability to acquire polarization information through rotational orientation differences.
Solution Approach 2:
The patent uses asymmetric rotational orientations of identical polarizing members to create different polarization angles. By rotating the same structured polarizing member to specific angles (e.g., 0°, 45°, 90°, 135°), the system achieves diverse polarization measurement capabilities without introducing structural variations that would degrade accuracy.
2Adaptability or versatility
If polarizing members with different internal structures are used, then polarization information acquisition is enabled, but characteristics of polarization pixels become non-uniform
Solution Approach 1:
The patent ensures uniformity of polarization pixel characteristics by using polarizing members with identical internal structures. Each polarizing member is created by rotating or symmetrically moving a reference polarizing member, guaranteeing that all members share the same structural properties while achieving different polarization angles through orientation variations.
Solution Approach 2:
The patent achieves adaptability through dynamic rotational orientation of identical polarizing members. By rotating the same structured member to different angles, the system can measure polarization information across multiple orientations, providing versatility without compromising structural uniformity.
3Measurement precision
If multiple types of polarizing members are combined, then polarization measurement is possible, but manufacturing complexity increases
Solution Approach 1:
The patent applies copying by creating all polarizing members from a single reference polarizing member through rotation or symmetric movement. This master-copy approach ensures that all members have identical internal structures, simplifying manufacturing processes while enabling multi-angle polarization measurement capabilities through controlled orientation 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
This approach improves the accuracy of polarization information by ensuring consistent characteristics across polarization pixels, leading to enhanced precision in polarization angle, degree of polarization, and object information calculation.
Implementation Method 1
a photoelectric conversion element that converts light incident through each of the plurality of types of polarizing members into electric charges
Implementation Method 2
a polarizer in which a plurality of types of polarizing members is arranged, the plurality of types of polarizing members each being obtained by rotationally moving or symmetrically moving one of the plurality of types of polarizing members having identical internal structures
Data Source
AI summary
In an imaging element including a polarizer, accuracy of obtained polarization information is improved. The imaging element includes a polarizer and a photoelectric conversion element, from the incident light side. A plurality of types of polarizing members is arranged on the polarizer. The plurality of types of polarizing members is polarizing members having the same internal structures, and is formed as the plurality of types of polarizing members by rotationally moving or symmetrically moving one of the polarizing members. The photoelectric conversion element converts light incident through each of the plurality of types of polarizing members into electric charges.