Optical Component Holding Device with Axis Alignment
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Solution Overview
Problem
Conventional optical component holding devices face challenges in precisely attaching and aligning multiple optical components in limited spaces, particularly in electronic viewfinders, leading to difficulties in achieving high precision and optimal optical performance due to the need for multiple pressing/holding members and sensitivity to parallelism or eccentricity.
Innovation Solution
An optical component holding device with a first and second optical component, a masking component, and holding members that utilize urging members to precisely position and fix the components in the optical axis direction, allowing for precise alignment and correction of optical components within a simple configuration, thereby improving the precision and stability of the optical system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple pressing/holding members are used to attach optical components in limited spaces, then the optical components can be held in place, but the manufacturing precision and alignment accuracy deteriorate due to the complexity of attaching multiple components
Solution Approach 1:
The patent combines multiple holding functions into a single integrated holding member structure. The holding member includes multiple holding portions that can simultaneously attach multiple optical components, eliminating the need for separate pressing/holding members for each component. This integration maintains holding stability while improving alignment accuracy by reducing the number of attachment points and simplifying the assembly process.
Solution Approach 2:
The holding member is designed with multi-functionality, serving as both a structural support and a positioning mechanism for multiple optical components. The holding portions are configured to simultaneously perform holding and alignment functions, allowing a single component to replace multiple specialized pressing/holding members while maintaining or improving precision.
2Volume of moving object
If optical components are stacked on a single optical component holding member in limited spaces, then space is saved, but the device complexity increases due to the need for precise attachment of multiple components
Solution Approach 1:
The holding member is segmented into multiple holding portions, each designed to accommodate specific optical components. This segmentation allows for organized stacking of components in limited space while maintaining individual attachment precision. Each holding portion can be independently configured, reducing the overall complexity of the attachment system compared to a monolithic holding structure.
Solution Approach 2:
The patent employs a nested arrangement where multiple optical components are stacked vertically on the single holding member in a compact configuration. The holding portions are arranged to accommodate components in a nested manner, maximizing space utilization while maintaining accessibility for attachment and adjustment, thereby reducing device complexity despite the compact stacking.
3Measurement precision
If receiving faces are provided on multiple components for mutual receiving, then the optical components can be positioned in the optical axis direction, but the manufacturing precision deteriorates due to the accumulation of errors across multiple interfaces
Solution Approach 1:
The patent extracts the positioning function from the multiple component interfaces and consolidates it into the holding member structure. The holding portions provide reference surfaces and positioning features that eliminate the need for multiple receiving faces across different components. This reduces the number of interfaces from three (between multiple components) to one (between components and holding member), thereby eliminating error accumulation and improving manufacturing precision.
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 enables high-precision holding of optical components and masking components in limited spaces, enhancing the optical performance and reducing distortion, thus improving the finder quality and viewing angle stability in imaging apparatuses.
Implementation Method 1
a first urging member that is in contact with the first optical component and the second optical component to urge the first optical component and the second optical component in the optical axis direction
Implementation Method 2
the first holding member and the second holding member press and hold the first optical component, the second optical component, and the first masking in the optical axis direction
Data Source
AI summary
An holding device can hold an optical component and a masking component with high precision in a simple configuration and a limited space. A first holding member includes a first receiving face that is in contact with a first optical component in an optical axis direction to fix a position of the first optical component in the optical axis direction and a second receiving face that is in contact with a second optical component in the optical axis direction to fix a position of the second optical component in the optical axis direction.