Coaxial Illumination Optical Sight with Integrated Reflective Element

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Solution Overview

Problem

Conventional optical sights require a separate flashlight for illumination, leading to non-coaxial alignment of the illumination and aiming points, which affects shooting accuracy and response time, and results in a bulky configuration.

Innovation Solution

An optical sight with an integrated coaxial illumination system, featuring a light source and reflective element positioned to project light along the second optical axis, ensuring the illumination point is parallel with the aiming point, thus aligning both on-axis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a separate flashlight is mounted on the optical sight or firearm for illumination, then illumination function is provided, but the illumination point and aiming point are not on-axis, affecting shooting accuracy and response time

Engineering Contradiction:
Improveillumination functionVSAvoidshooting accuracy
Core Design Contradiction:
Illumination intensityVSMeasurement precision

Solution Approach 1:

The patent merges the illumination function into the optical sight by integrating a light source and reflective element within the sight's optical path. The light source is positioned at a location where its emitted light, after reflection, travels coaxially with the optical axis, ensuring the illumination point coincides with the aiming point. This integration eliminates the need for a separate flashlight and resolves the misalignment issue between illumination and aiming points.

Inventive Principle:
Principle #5Merging (Combining)

2Illumination intensity

If a separate flashlight is mounted on the optical sight or firearm, then illumination is provided, but the configuration becomes bulky and troublesome to use

Engineering Contradiction:
Improveillumination functionVSAvoidconfiguration bulkiness
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The illumination components (light source and reflective element) are integrated within the optical sight's existing structure, merging two separate functions (sighting and illumination) into a single device. This eliminates the need for an additional mounted flashlight, reducing overall device complexity and bulkiness while providing convenient illumination control through the sight itself.

Inventive Principle:
Principle #5Merging (Combining)

3Illumination intensity

If a separate flashlight is mounted on the optical sight or firearm, then illumination is provided, but response time and accuracy of shooting are negatively affected

Engineering Contradiction:
Improveillumination functionVSAvoidresponse time
Core Design Contradiction:
Illumination intensityVSLoss of time

Solution Approach 1:

By integrating the illumination function directly into the optical sight with coaxial alignment, the system eliminates the time delay associated with adjusting or aiming a separate flashlight. The illumination point coincides with the aiming point, allowing immediate illumination when needed without affecting response time or shooting accuracy.

Inventive Principle:
Principle #5Merging (Combining)

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

This integration improves shooting accuracy and response time by maintaining a compact design without the need for a separate flashlight, ensuring the illumination point is coaxial with the aiming point, enhancing usability and reducing bulkiness.

Implementation Method 1

The reflective element is for projecting emitted light, which is emitted from the light source, onto the objective lens unit

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS8331021B2Optical sight having a coaxial illumination function
Publication Date: 2012.12.11 ASIA OPTICAL INT LTD
  • US8331021B2 patent drawing
  • US8331021B2 patent drawing
  • US8331021B2 patent drawing

AI summary

An optical sight includes an outer barrel unit, an objective lens unit, an ocular lens unit, a magnification unit, and an illumination unit. The outer barrel unit extends about an axis and has a front end and a rear end. The objective lens unit is mounted to the front end of the outer barrel unit and has a first optical axis. The ocular lens unit is mounted to the rear end of the outer barrel unit. The magnification unit is disposed in and on the outer barrel unit between the objective lens unit and the ocular lens unit, and has a second optical axis. The illumination unit is disposed on the magnification unit, and includes a light source spaced apart from the second optical axis, and a reflective element for projecting emitted light, which is emitted from the light source, onto the objective lens unit.