Lens Device With Screw-Driven Asperity Adjustment
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Solution Overview
Problem
Existing lens devices require time and effort to adjust optical characteristics with an extender lens inserted in the optical axis, as adjustments are typically made by removing and reinserting the lens, which is inefficient.
Innovation Solution
A lens device with a cylindrical first and second frame body, where the second frame body is screwed to the first and features asperities on its perimeter, allowing for diagonal engagement by a stick-shaped member to adjust the space between the front and rear optical systems while the extender lens is inserted, enabling optical axis adjustments without removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the extender lens is removed from the optical axis for adjustment, then the optical characteristics can be adjusted, but it takes time and trouble to repeat insertion and removal
Solution Approach 1:
The adjustment mechanism is designed so that the extender lens is pre-positioned in the optical axis, and the adjustment can be performed directly without requiring removal and reinsertion. The screw mechanism allows the lens to be adjusted while remaining in its operational position, eliminating the need for preliminary removal actions.
Solution Approach 2:
A screw mechanism acts as an intermediary between the adjustment action and the lens positioning. The screw allows controlled movement of the extender lens along the optical axis while it remains inserted, enabling adjustment without direct manual manipulation that would require removal and reinsertion.
2Productivity
If the extender lens is inserted in the optical axis, then optical performance can be checked, but adjustment of optical characteristics becomes difficult
Solution Approach 1:
The adjustment mechanism transforms the static locked position of the extender lens into a dynamically adjustable position. The screw mechanism allows continuous or incremental adjustment of the lens position along the optical axis while it remains inserted, enabling both checking and adjustment in the same operational state.
Solution Approach 2:
The adjustment mechanism is designed to be self-contained within the lens assembly, allowing the extender lens to adjust itself or be adjusted by simple operation without requiring external tools or complex procedures. The screw mechanism provides direct control over the lens position, making the adjustment process simple and efficient.
3Adaptability or versatility
If a screw mechanism is used to adjust the space between lens groups, then optical characteristics can be adjusted, but the structure becomes more complex
Solution Approach 1:
The screw mechanism is merged with the existing lens frame structure, combining the adjustment function with the structural support function. The screw is integrated into the lens frame assembly, allowing it to serve both as a structural element and an adjustment mechanism, thereby reducing overall structural complexity.
Solution Approach 2:
The screw mechanism serves multiple functions: it adjusts the space between lens groups for optical characteristic adjustment, provides structural support for the extender lens assembly, and enables precise positioning. This multi-functionality reduces the need for separate components, thereby reducing overall device complexity.
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 efficient adjustment of optical characteristics with the extender lens inserted, reducing the need for repeated insertion and removal, thus saving time and effort, and facilitating easier operation and bonding agent application.
Implementation Method 1
a second screw that has a predetermined length in the optical axis direction and can be screwed to the first screw
Data Source
AI summary
A lens device according to an embodiment of the presently disclosed subject matter includes a first frame body where a first screw is formed, a second frame body where a second screw that can be screwed to the first screw is formed, the second frame body having a predetermined area of an outer perimeter where asperities are formed, an extender lens including a front optical system supported by the first frame body and a rear optical system supported by the second frame body, and a cylinder accommodating the first and second frame bodies and having formed thereon an opening for engaging a stick-shaped member inserted from the opening with the asperities from a diagonal direction when the first frame body is inserted in an optical axis.