Gun-Mounted Search Light IR Filter Telescopic Assembly
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Solution Overview
Problem
The HellFighter target illuminator, a gun-mounted accessory, lacks versatility and performance enhancements, particularly in the handling and protection of its IR filter, which is prone to abrasion and accidental activation when not in use.
Innovation Solution
The integration of a spring-biased IR filter assembly with a telescopic sleeve and gear drive mechanism allows for manual and tool-free installation/removal, along with a dust cap for protection, and a tripod of rods to prevent rotation of the driven gear, enhancing the IR filter's stowability and operational safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the IR filter is made removable and storable, then versatility and ease of operation are improved, but the filter becomes prone to abrasion and accidental activation
Solution Approach 1:
The IR filter is nested within a telescopic sleeve assembly that houses it in a protected position when not in use. The filter can be extended from the sleeve for operation and retracted for protection, eliminating exposure to abrasion and accidental activation while maintaining easy accessibility.
Solution Approach 2:
A spring-biased mechanism is pre-configured to automatically return the telescopic sleeve to its retracted position, protecting the IR filter, when not actively extended. This preliminary protective action prevents accidental activation and abrasion without requiring additional user intervention.
2Object-affected harmful factors
If a telescopic sleeve assembly with spring bias is used, then protection from debris and accidental activation is improved, but device complexity increases
Solution Approach 1:
Multiple functions are merged into a single telescopic sleeve assembly: it serves as both a protective cover for the IR filter and a mechanical guide for its extension/retraction. The spring bias mechanism is integrated within the same assembly, eliminating the need for separate protective structures and reducing overall complexity.
Solution Approach 2:
The telescopic sleeve assembly performs multiple functions simultaneously: it protects the IR filter from debris, prevents accidental activation by keeping the filter retracted, guides the filter's movement, and provides a compact storage position. This multi-functionality reduces the need for additional components.
3Ease of operation
If manual and tool-free installation/removal is enabled, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The assembly uses a dynamic telescopic mechanism with spring bias that allows the IR filter to be easily extended and retracted during operation. For installation and removal, the design incorporates snap-fit or bayonet-style connections that provide tool-free attachment and detachment while maintaining precise alignment through the telescopic guide structure.
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 solution improves the HellFighter target illuminator's versatility and performance by enabling easy filter management, protection from debris, and enhanced safety features, ensuring reliable operation and extended lifespan.
Implementation Method 1
A spring-biased IR filter is shaped as a hollow sleeve telescopically disposed over the lamp
Data Source
AI summary
An internal IR filter assembly for an illuminator has a lamp disposed within a reflector with a face plate. A spring-biased IR filter is shaped as a hollow sleeve telescopically disposed over the lamp. A fixed cylindrical pedestal has one end coupled to the face plate. A sliding cylindrical mount is coupled to the IR filter and telescopically disposed over the fixed pedestal. A gear drive is engaged to a driven gear or hub. A motor is coupled to the gear drive to selectively and reversibly rotate the gear drive. The driven gear is coupled to the sliding cylindrical mount of the IR filter to selectively and reversibly translate the IR filter with respect to the lamp. At least one rod is coupled to the driven gear to prevent the rotation of the driven gear. The rod is slidable within the illuminator but rotationally fixed relative to the illuminator.