Cylindrical Lens Circumferential Angle Adjustment Mechanism
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Solution Overview
Problem
Existing systems fail to effectively align the generatrices of multiple cylindrical lenses, which is necessary for proper image compression and restoration in Cinema Scope systems.
Innovation Solution
A circumferential angle adjustment device for cylindrical lenses, comprising an adjustment ring, a lens holding tube, and a cam member, allows for precise adjustment of the generatrix angle and position of cylindrical lenses using a screw mechanism and cam followers to align the generatrices of multiple lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cylindrical lenses are provided for image compression and restoration, then the Cinema Scope system can achieve wide screen video functionality, but the generatrices of the cylindrical lenses cannot be made to coincide with each other
Solution Approach 1:
The invention introduces a dynamic adjustment mechanism consisting of an adjustment ring, lens holding tube, and screw mechanism. This allows the generatrices of multiple cylindrical lenses to be dynamically aligned by rotating the adjustment ring, which moves the lens holding tube along the optical axis, thereby enabling precise circumferential angle adjustment of the cylindrical lenses relative to each other
Solution Approach 2:
The invention changes the positional parameter of the cylindrical lenses by providing a circumferential angle adjustment device. The screw mechanism converts rotational motion into linear displacement, changing the position of the lens holding tube along the optical axis, which in turn adjusts the circumferential angle of the cylindrical lenses to make their generatrices coincide
2Manufacturing precision
If a circumferential angle adjustment device is added to align cylindrical lenses, then generatrices can be made to coincide, but the device complexity increases
Solution Approach 1:
The adjustment ring serves multiple functions: it provides the circumferential angle adjustment mechanism, acts as a rotating component that drives the lens holding tube, and enables both angular and positional adjustment of the cylindrical lenses. This multi-functionality reduces the need for separate adjustment mechanisms
Solution Approach 2:
The invention employs a nested structure where the lens holding tube is inserted into the adjustment ring, and the outer peripheral tube contains the adjustment ring. This nested arrangement allows compact integration of multiple adjustment components without significantly increasing 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 precise alignment of the generatrices of cylindrical lenses, ensuring accurate image compression and restoration in Cinema Scope systems, improving the overall image quality and lens alignment.
Implementation Method 1
screw parts at an outer peripheral surface of the outer peripheral tube and at an inner peripheral surface of the adjustment ring, which move the adjustment ring along the optical axis by rotation of the adjustment ring in the circumferential direction of the optical axis
Implementation Method 2
a cam member 4 which is provided on an outer peripheral side of the lens holding tube 2 and has a cam surface 4C which is eccentric with respect to a center axis 8A
Data Source
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AI summary
Provided is a circumferential angle adjustment device for the bus bar in a cylindrical lens capable of mutually matching the bus bars of a plurality of cylindrical lenses. The device comprises: a lens holding tube 2 for holding a cylindrical lens 7; an outer peripheral tube 3 having the lens holding tube 2 arranged on the inner periphery thereof; a cam part 4 provided on the outer periphery of the lens holding tube 2, having a cam surface 4C offset to an axis 8A intersecting with the optical axis X of the lens holding tube 2; and a long hole 6 (a portion engaging with a cam part) formed on the outer peripheral tube 3, engaging with the cam part 4 in the circumferential direction of the optical axis X. The lens holding tube 2 is held in relation to the outer peripheral tube 3 at least from three equidistant points along the circumferential direction of the optical axis X.