Dual-Dial Optical Measurement for Accurate Viewing Angles
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Solution Overview
Problem
Existing methods for measuring the viewing angle of optical components suffer from low accuracy and high costs, limiting their practical application.
Innovation Solution
A dual-dial measurement device and method using a support frame, large and small dials, a vernier disc, and verniers to measure the viewing angle by calculating the angle of outgoing lights and the rotation angle of the device based on geometric relationships.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional measurement methods (echo measurement, full combination angle measurement, multi angle displacement measurement) are used, then measurement can be performed, but measurement accuracy is low or device cost is high
Solution Approach 1:
The measurement device is segmented into two independent dial systems: a large dial for measuring the incident light angle and a small dial for measuring the outgoing light angle. Each dial can be adjusted and read independently, allowing precise measurement of viewing angles through separate angular measurements rather than requiring a single complex measurement system.
Solution Approach 2:
The patent introduces a light source as an intermediary element to illuminate the optical component at a controllable incident angle. This light source enables the measurement process by creating a visible path of incident and outgoing lights, which can then be measured by the dial systems without requiring direct electronic or mechanical contact with the optical component.
2Measurement precision
If traditional measurement methods are used, then measurement can be performed, but device cost is high
Solution Approach 1:
The measurement device uses simple, inexpensive components such as standard dial indicators, a basic support frame, and a conventional light source. These components are readily available and can be manufactured at low cost, replacing expensive specialized measurement equipment while maintaining adequate measurement precision for practical applications.
Solution Approach 2:
The measurement device is designed with universal applicability to measure viewing angles of various optical components including single lenses, lens sets, and other optical systems. The same device structure and measurement methodology can be used across different optical component types, eliminating the need for multiple specialized measurement devices for different applications.
Data Source
AI summary
A double-dial measurement device and a measurement method for viewing angle measurement of an optical component are provided. The device includes a support frame, a large dial, a small dial, a vernier disc, verniers and an objective table. When the first locking knot is fastened and the small dial rotates, the large dial or the vernier disc are driven to rotate synchronously, which refers to a rotation motion centered on an axis of the large dial under external force. When a symmetrical light source is irradiated on the optical component, an exit angle of exit lights is used to measure the viewing angle, effectively measuring the effective viewing angle of a single optical component and an optical component set, evaluating the optical component or system with reference to the viewing angle, and providing guidance and reference for the optical component.