Lens Module Barrel Wall Thickness Reduction via Vertical Light Hole
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Solution Overview
Problem
Existing lens modules face challenges in miniaturization due to increased wall thickness and production complexity caused by the need for a light hole and slope on the barrel wall, leading to higher weight and difficulty in manufacturing.
Innovation Solution
A lens module design featuring a lens barrel with a first barrel wall and a second barrel wall creating a receiving space, where the first barrel wall has a hole connected to the space with specific inner surfaces, and a stop with a smaller light hole that aligns with the lens's protruding central portion, allowing for precise assembly and reduced wall thickness, thus minimizing weight and production complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a light hole is created on the first barrel wall with a certain thickness, then the structural strength is maintained, but the wall thickness is increased and the height and weight of the lens module are increased
Solution Approach 1:
The patent transitions from a traditional horizontal light hole configuration to a vertical light hole configuration through the first barrel wall. This dimensional change allows the light hole to be formed without increasing the horizontal wall thickness, thereby reducing the overall height and weight of the lens module while maintaining structural integrity through the vertical orientation of the aperture.
2Manufacturing precision
If a slope is provided on the first barrel wall at the position of the light hole, then the optical alignment is improved, but the difficulty of production is increased
Solution Approach 1:
Instead of providing a slope on the barrel wall as in conventional designs, the patent inverts the approach by making the light hole vertical and perpendicular to the barrel wall surface. This inversion eliminates the need for complex sloped surfaces, significantly simplifying the manufacturing process while maintaining precise optical alignment through the straightforward vertical configuration.
3Stability of the object's composition
If the wall thickness of the barrel wall is increased to create a light hole, then the structural integrity is maintained, but the height and weight of the entire lens module are increased
Solution Approach 1:
The patent changes the orientation of the light hole from horizontal to vertical, allowing the aperture to pass through the barrel wall in the vertical dimension. This enables the use of thinner barrel walls without compromising structural integrity, as the vertical configuration provides sufficient structural support while reducing the horizontal material requirement and overall module height.
Data Source
AI summary
A lens module is disclosed. A lens module includes a lens barrel including a first barrel wall extended horizontally and a second barrel wall extended from the first barrel wall; a lens group including at least one lens located in the lens barrel, the lens comprising a first surface close to the first barrel wall and a second surface opposite to the first surface; and a stop clamped between the lens barrel and the lens. The first surface of the lens is provided with a first slope, an inner surface of the first barrel wall of the lens barrel is provided with a second slope abutting against first slope, and the stop creates a light hole for the lens.