Telescoping Eyecup Bayonet Mount for Optical Alignment
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Solution Overview
Problem
Conventional eyepiece designs for mobile phones attached to optical devices like binoculars and telescopes suffer from undesirable axial movements, particularly when trying to optimize the axial distance between the mobile phone camera and the eyepiece lens, due to the reliance on rotational extension of the eyecup, which can lead to improper alignment.
Innovation Solution
A telescoping eyecup with a locking feature that allows for adjustable axial positions and prevents unwanted rotation, utilizing a bayonet mount system to securely attach the eyecup to a device case, ensuring precise alignment and image capture through the eyepiece lens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotational extension mechanism is used for the eyecup, then the eyecup can be extended according to user preference for eye relief, but the mobile phone may rotate the eyecup further than desired or back to a retracted state, causing undesirable axial movements
Solution Approach 1:
The eyecup extension mechanism transitions from a purely rotational dynamic system to a hybrid system that combines rotational adjustment with axial locking. The bayonet mount allows rotational extension while the separate axial locking mechanism prevents unintended axial movement, creating a controlled dynamic system that maintains position stability.
Solution Approach 2:
The bayonet mount serves as an intermediary mechanism between the rotational extension function and the axial position stability requirement. It decouples the rotational adjustment motion from axial movement, allowing the eyecup to extend rotationally while maintaining stable axial positioning through its locking features.
2Adaptability or versatility
If the eyecup is allowed to rotate freely for extension, then user preference for eye relief can be accommodated, but precise alignment between the mobile phone camera and the eyepiece lens cannot be maintained
Solution Approach 1:
The eyecup adjustment system is segmented into two independent functions: rotational extension for eye relief optimization and axial locking for alignment precision. This segmentation allows each function to operate independently without interfering with the other, maintaining both adaptability and precision.
Solution Approach 2:
The bayonet mount acts as an intermediary that separates the rotational degree of freedom (for eye relief adjustment) from the axial degree of freedom (for alignment precision). This intermediary mechanism enables the eyecup to rotate for extension while the locking features maintain precise axial alignment.
3Device complexity
If a simple rotational extension mechanism is used, then the device structure remains simple, but the locking feature to prevent undesirable axial movements is absent
Solution Approach 1:
The solution merges two mechanisms: the simple rotational extension mechanism and the axial locking mechanism. The bayonet mount combines the rotational adjustment capability with integrated locking features, achieving both simplicity and reliability without requiring completely separate systems.
Solution Approach 2:
The mechanism transitions from a simple static rotational joint to a dynamic bayonet mount with integrated locking and unlocking capabilities. This allows the system to switch between extended and locked states, providing axial position stability while maintaining structural simplicity.
Data Source
AI summary
An interface facility has a first facility element connected to an ocular, a device case configured to connect to a smart device, a second facility element connected to the device case, the first and second facility elements being configured to connect to each other in a connected condition and to detach from each other, the first facility element being registered with a first optical axis associated with the ocular, the second facility element being registered with a second optical axis associated with the camera, the first and second optical axes being registered with each other when the first and second facility elements are in the connected condition, such that the camera records images generated by the ocular. The first and second facility elements may comprise a bayonet mount.