Dot Sight Lens Barrel Without Inner Cylinder
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Solution Overview
Problem
Conventional dot sights suffer from mechanical vignetting due to the inner cylinder, which narrows the field of vision and makes aiming less accurate, and the adjustment mechanism is prone to shifting during gunshots due to its mass and spring support, leading to reduced durability and accuracy over time.
Innovation Solution
A compact dot sight design without an inner cylinder, featuring a lens barrel with a larger front opening and smaller rear opening, where the dot adjustment mechanism includes a holder and spring-supported screws for precise point image adjustment, minimizing mechanical vignetting and maintaining accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an inner cylinder is inserted into the lens barrel to enable dot position adjustment, then the dot position can be adjusted in up-down and right-left directions, but mechanical vignetting occurs that narrows the field of vision
Solution Approach 1:
The invention removes the inner cylinder structure from the lens barrel, extracting the source of mechanical vignetting. Instead of moving an inner cylinder with the light source, the light source is directly mounted on the lens barrel structure, eliminating the obstructing inner cylinder while preserving dot position adjustment capability through alternative means
Solution Approach 2:
The invention changes the adjustment mechanism from moving an inner cylinder in two dimensions (up-down and right-left) to a different structural arrangement where the light source position is adjusted through mounting structures on the lens barrel itself, thereby eliminating the vignetting caused by the inner cylinder while maintaining adjustment functionality
2Measurement precision
If a spring-supported inner cylinder is used for dot position adjustment, then the dot can be positioned accurately, but the mechanism is prone to shifting during gunshots due to mass and spring support
Solution Approach 1:
The invention extracts and removes the inner cylinder structure that causes reliability issues during gunshots. By eliminating this massive, spring-supported moving component, the system avoids the shifting and durability problems while maintaining position adjustment through a more stable mounting configuration
Solution Approach 2:
The invention replaces the spring-supported inner cylinder mechanical adjustment system with a more stable mounting structure where the light source is directly attached to the lens barrel. This substitution eliminates the problematic spring-mass system that shifts during gunshots while preserving the ability to adjust dot position
3Area of stationary object
If the inner cylinder is made smaller to reduce vignetting, then the field of vision improves, but the range of mechanical vignetting becomes wider
Solution Approach 1:
The invention completely removes the inner cylinder structure that generates mechanical vignetting. By extracting this component entirely rather than resizing it, the system eliminates the source of vignetting problems while maintaining full field of vision without the trade-off of increased vignetting range
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 design minimizes mechanical vignetting, enhances aiming accuracy, and reduces the impact of gunshots on zeroing, allowing for more precise and long-term accurate aiming without obstructing the user's field of view.
Implementation Method 1
A dot sight projects a point image of a light source on an objective lens to form a point of aim
Implementation Method 2
the layer 113 between the two objective lenses 112 reflects only light having a red light emission wavelength
Implementation Method 3
A layer 113 reflecting only light having a predetermined wavelength is coated between the two objective lenses 112
Data Source
AI summary
A compact dot sight is provided, in which the inner cylinder is eliminated and no structure protrudes from the left and right side walls of a lens barrel. The dot sight includes: a lens barrel; objective lenses fixed to a front opening of the lens barrel; an eyepiece lens fixed to a rear opening of the lens barrel; a light source for projecting a point image from an inside of the lens barrel to the objective lens; a power supply circuit for supplying power to the light source; and a dot adjustment mechanism that has a holder of the light source and can adjust the position of the point image projected on the objective lens by moving the holder vertically and horizontally.