Adaptor Lens for Scope Magnification Using Convex and Concave Elements

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Solution Overview

Problem

Existing sight optical systems with low magnification limit users to only observe at lower magnifications, requiring the purchase of more expensive high-magnification sights to achieve higher magnification.

Innovation Solution

An adaptor lens system comprising a convex lens part and a concave lens part, detachably coupled to a low-magnification sight, which increases the magnification by narrowing the incident beam diameter through sequential passage, allowing for higher magnification without the need for additional high-magnification sights.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a low-magnification sight optical system is used, then the device cost is reduced and the structure is simpler, but the magnification capability is limited to lower values

Engineering Contradiction:

Improvedevice costVSAvoidmagnification capability

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

An adapter lens assembly is introduced as an intermediary component between the low-magnification sight and the target. This adapter contains convex and concave lenses that work together to increase the effective magnification of the sight system, allowing a low-magnification sight to function as a high-magnification sight when the adapter is attached.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The adapter lens assembly is designed to be attached to the front of the existing sight, with the convex lens positioned in front of the concave lens. This nested configuration allows the adapter to integrate with the sight's optical path without requiring replacement of the entire sight system.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If a high-magnification sight is purchased to achieve higher magnification, then the magnification capability is improved, but the device cost increases

Engineering Contradiction:

Improvemagnification capabilityVSAvoiddevice cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Instead of purchasing an expensive high-magnification sight, users can attach a relatively inexpensive adapter lens assembly to their existing low-magnification sight. The adapter provides the necessary magnification increase at a lower cost than replacing the entire sight system.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The adapter lens assembly changes the optical parameters of the sight system by introducing additional lens elements with specific focal lengths. The convex lens (positive focal length) and concave lens (negative focal length) work together to modify the effective magnification parameter of the original sight.

Inventive Principle:

Principle #35Parameter changes

3Adaptability or versatility

If the incident beam diameter is narrowed through sequential passage through convex and concave lenses, then the magnification is increased, but the optical system complexity increases

Engineering Contradiction:

ImprovemagnificationVSAvoidoptical system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The magnification function is segmented into two separate lens components: a convex lens for the first magnification stage and a concave lens for the second stage. This segmentation allows each lens to be optimized for its specific function while working together to achieve the overall magnification increase.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The adapter lens assembly is designed with adjustable spacing between the convex and concave lenses, allowing the optical system to be dynamically adjusted for different magnification levels and focusing requirements. This dynamic adjustment capability provides flexibility while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #15Dynamics

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 higher magnification (up to 8×) with a cheaper adapter lens, expanding user selection options without the need for additional high-magnification sight purchases.

Implementation Method 1

an incident beam incident in parallel to the first convex lens decreases in diameter while sequentially passing through the first convex lens and the second convex lens

Methodology Applied

Scientific EffectRefraction: Refraction

Implementation Method 2

a diameter of an emission beam emitted in parallel through the second concave lens part is smaller than that of the incident beam

Methodology Applied

Scientific EffectRefraction: Refraction

Data Source

PatentUS11333866B2Adaptor lens for increasing magnification of scope and sight comprising the same

Publication Date: 2022.05.17 SU OPTICS CO LTD

AI summary

Disclosed are an adaptor lens for increasing a magnification of a scope and a sight comprising the same. The adaptor lens for increasing a magnification of a scope of the present invention comprises: an adapter lens body detachably coupled to a sight main body having an objective lens group; a convex lens part provided in the adapter lens body so as to be disposed in front of the objective lens group; and a concave lens part provided in the adapter lens body and disposed between the convex lens part and the objective lens group.