Lens Holding Frame Acute Slope Adhesive Fixation
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Solution Overview
Problem
The existing lens barrel designs face challenges in achieving sufficient adhesive strength and optical performance due to overlapping components in the optical axis direction, which complicates UV curing and reduces durability during optical adjustments.
Innovation Solution
A lens apparatus with a holding frame and a base member featuring acute-angled slopes for adhesive application, ensuring strong adhesion and preventing adhesive peeling during decentering and thrust movements, while allowing for effective UV curing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an extender and a convex part are arranged at different positions in the optical axis direction to fix the lens frame and adjustment frame, then the adhesive can be applied between them, but the extender and convex part overlap each other in the optical axis direction making it difficult to visually recognize the adhesive application range and apply adhesive to the intended spot
Solution Approach 1:
The invention changes the arrangement from overlapping in the optical axis direction to adjacent arrangement on the same flange surface, effectively moving the problem from one dimension (optical axis) to another dimension (lateral surface), thereby eliminating the overlap issue while maintaining fixation functionality
Solution Approach 2:
The invention extracts the overlapping extender and convex part into separate, non-overlapping components positioned adjacent to each other on the flange surface, allowing independent adhesive application to each component without interference from the other
2Reliability
If the extender and convex part overlap in the optical axis direction, then fixation is achieved, but the overlapping part becomes a shade making it difficult to properly irradiate UV light onto the adhesive causing insufficient curing
Solution Approach 1:
By arranging the extender and convex part adjacent to each other on the flange surface rather than overlapping in the optical axis direction, the invention eliminates the shading effect that blocks UV light, allowing uniform UV irradiation across the adhesive application areas
Solution Approach 2:
The invention positions the extender and convex part such that UV light can pass through or around them without being blocked, effectively using the spatial arrangement as a mediator to allow UV penetration to the adhesive layers
3Reliability
If decentering from the optical axis is performed to achieve optical adjustment, then the optical performance is improved, but the overlapping range between the extender and convex part is reduced and the adhesive amount is reduced causing insufficient adhesion strength
Solution Approach 1:
The invention segments the fixation function into two separate components (extender and convex part) positioned adjacent to each other, so that decentering movements do not reduce the overlapping range between them, maintaining constant adhesive strength while allowing optical adjustment
Solution Approach 2:
The invention provides different functional zones: the extender and convex part provide fixed adhesion zones that remain constant during decentering, while the lens frame and adjustment frame provide movable zones that enable optical adjustment, allowing each part to perform its specific function optimally
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 enhances the durability and adhesion reliability of the lens apparatus by providing a clear adhesive application area and improved UV curing, maintaining optical performance even under impact and optical adjustments.
Implementation Method 1
A UV curing type adhesive curable by the UV light irradiation is widely used for the adhesive for the optical adjustment
Data Source
AI summary
A lens apparatus includes a lens, a first base member, and a holding frame configured to hold the lens, the holding frame including a flange surface that intersects with an optical axis of the lens. The first base member has a first slope having an acute angle to the flange surface, and the holding frame is fixed to the first base member by adhesive provided between the first slope and the flange surface.