Tunable Optics Module for Parallax Error Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Motion parallax in personal targeting systems like rifle scopes causes aiming errors, and these errors are exacerbated by temperature changes, making complete and quick elimination of parallax errors in all operational conditions a significant challenge.
Innovation Solution
A parallax compensating device is integrated into the rifle scope, comprising a tunable optics module with refractive plates and a processing system that determines a zero-parallax setting distance using target range data, temperature data, and calibrated look-tables, allowing for real-time compensation of parallax errors regardless of user alignment or temperature changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional fixed-focus optics are used in rifle scopes, then the structure is simple and cost-effective, but parallax errors occur when imaging remote objects at different distances
Solution Approach 1:
The patent applies dynamics by replacing fixed-focus optics with a tunable optical module that can dynamically adjust its focal length. The TOM changes its optical power in real-time based on the distance to the target, allowing the system to maintain zero parallax error across varying ranges. This dynamic adjustment capability resolves the contradiction by enabling precise aiming at different distances while managing complexity through electronic control.
Solution Approach 2:
The patent implements parameter changes by varying the focal length of the tunable optical module based on target distance. The system modifies the optical parameter (focal length) to match the ranging data, thereby eliminating parallax errors. This approach improves aiming precision by adapting the optical parameters to the specific shooting scenario.
2Reliability
If parallax compensation is not implemented, then the device complexity remains low, but temperature changes cause additional parallax errors
Solution Approach 1:
The patent implements feedback by continuously monitoring temperature changes and adjusting the focal length of the tunable optical module accordingly. The system receives temperature data, processes it through algorithms that account for thermal expansion and refractive index changes, and dynamically adjusts the optics to compensate for temperature-induced parallax errors. This feedback mechanism enhances aiming reliability under varying thermal conditions.
Solution Approach 2:
The patent replaces traditional mechanical parallax adjustment mechanisms with an electronically controlled tunable optical module. Instead of mechanically moving lenses or adjusting focus rings, the system uses electronic signals to control the TOM's focal length, thereby eliminating parallax errors caused by temperature changes. This substitution reduces mechanical complexity while improving reliability.
3Ease of operation
If manual parallax adjustment is used, then the system is simple to operate, but the user must be precisely aligned with the scope to eliminate errors
Solution Approach 1:
The patent implements self-service by enabling the system to automatically eliminate parallax errors without requiring precise user alignment or manual adjustment. The tunable optical module autonomously adjusts its focal length based on ranging data and temperature information, compensating for user misalignment. This self-adjusting capability maintains ease of operation while significantly improving aiming precision.
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 system dynamically removes both temperature-dependent and independent parallax errors in real-time, ensuring accurate targeting even with misalignment or temperature fluctuations, and can be easily integrated into existing rifle scopes without extensive modifications.
Implementation Method 1
The TOM includes refractive plates for tuning the refractive power of the TOM
Implementation Method 2
The front optics may include at least one temperature sensor for determining temperature data of the rifle scope or surrounding environment
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An example rifle includes a rifle scope including a front optics and back optics for imaging a remote object. A parallax compensating device is coupled to the rifle scope. The parallax compensating device determines a zero-parallax setting distance to compensate parallax errors associated with imaging a remote object. The parallax compensating device removes, using the zero-parallax setting distance, the parallax errors dynamically in real time even if a user's head or eyes are misaligned and temperature at the rifle scope or rifle changes.