722-1214-001 - Hoffman Engineering High Output PAR46 Infrared Spotlight Assembly

722-1214-001 – Hoffman Engineering High Output PAR46 Infrared Spotlight Assembly

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Overview Section

The Hoffman Engineering 722-1214-001 is a specialized, ruggedized PAR46 Infrared (IR) Spotlight Assembly designed for high-intensity, covert illumination in military, law enforcement, and search and rescue airborne platforms. Unlike standard visible light spotlights, this assembly emits light primarily in the Near-Infrared (NIR) spectrum (typically 800 nm to 950 nm wavelength range), making the illumination virtually invisible to the naked human eye but highly effective for use with Night Vision Goggles (NVG) and other sensitive electro-optical/infrared (EO/IR) sensor systems. This assembly utilizes a high-output lamp, housed within a precision Parabolic Aluminized Reflector (PAR) lamp casing, to generate a concentrated, focused beam of IR energy.

The unit is built to withstand the extreme vibration, temperature variations, and shock loads inherent to airborne tactical operations, ensuring reliable performance during critical low-light and clandestine missions. Its primary function is to actively illuminate targets and search areas, enhancing the effective range and clarity of the aircraft's onboard night vision equipment without compromising the crew's covert posture.

Key Features Section

• Covert Infrared Illumination: Optimized output spectrum for use with Generation III Night Vision Goggles (NVG) and low-light cameras, providing high visibility for equipped personnel while maintaining visual darkness.

• PAR46 Standard Form Factor: Conforms to the standard 5.75-inch (PAR46) lamp diameter specification, allowing for integration into various airframe housing mounts and turrets.

• High Beam Intensity: Precision parabolic reflector geometry ensures maximum concentration of the IR energy into a narrow, powerful beam (often a  5 degree or  10 degree beam spread).

• Ruggedized Construction: Features a robust casing, sealed lens, and shock-resistant lamp retention system to ensure lamp integrity and operational reliability under high G-loads and vibration.

• Standard DC Voltage Operation: Designed to operate directly from the aircraft's primary 28 VDC electrical bus, simplifying power supply integration.

• Replaceable Lamp Assembly: The design permits easy field replacement of the lamp element (which often includes the filament and reflector as a sealed unit) upon failure.

Technical Specifications Section

• Part Number: 722-1214-001

• Component Type: High Output Infrared (IR) Spotlight Assembly

• OEM Manufacturer: Hoffman Engineering Corporation

• Lamp Type: PAR46 Halogen or Xenon Element with IR Filter (Bulb P/N must be confirmed, e.g., GE Q4559 or equivalent)

• Spectral Output: Primarily Near-Infrared (NIR), typically centered around 850 nm

• Nominal Voltage: 28 VDC (Direct Current)

• Current Draw (Nominal): Highly variable, often 5 Amps 10Amps (Power output must be confirmed via OEM datasheet)

• Beam Spread: Narrow-Spot Beam (Specific angle must be confirmed)

• Form Factor: PAR46 (5.75-inch diameter)

• Housing Material: Corrosion-resistant metal alloy (e.g., Anodized Aluminum)

• Governing Specifications: Qualified for use under applicable sections of RTCA DO-160 for environmental and vibration resilience.

Aircraft Compatibility Section

• Military/Tactical Aircraft: Platforms used by the US Air Force, Navy, and allied forces requiring covert illumination systems (e.g., C-130 variants, special operations helicopters).

• Law Enforcement/Homeland Security: Helicopters and fixed-wing aircraft equipped with NVG and FLIR/EO systems for night surveillance.

• Search and Rescue (SAR): Aircraft requiring both visible and covert illumination capabilities.

Note: The assembly's compatibility is determined by the physical mounting bracket/turret in the airframe and the available electrical power bus. The aircraft's Wiring Diagram Manual and Component Maintenance Manual are the final authority for verification.

Applications Section

• Covert Search and Tracking: Actively illuminating ground targets, personnel, or debris for EO/IR sensors without revealing the aircraft's presence to unaided observers.

• Landing Zone Security: Providing IR illumination for helicopter landing zones where personnel are using NVGs.

• Night Vision Augmentation: Enhancing the performance and effective range of the aircrew's personal NVGs during low-altitude operations.

Why Choose the 722-1214-001?

Choosing the certified Hoffman Engineering 722-1214-001 is essential for maintaining covert operational integrity and flight safety during low-light conditions. Standard automotive or uncertified IR lights lack the necessary shock/vibration proofing required by DO-160 and, critically, often feature a spectral output that contains excessive "spill" visible light, potentially compromising covert status. The Hoffman unit guarantees the correct peak IR wavelength, precise beam shape, and the mechanical resilience to endure tactical flight profiles. Its failure could result in mission compromise or a sudden loss of visual reference for the aircrew operating under NVGs.

The high-intensity function of the 722-1214-001 is achieved through meticulous control over the optical properties of the parabolic reflector and the integration of a specialized dichroic filter. The principle of the PAR lamp is to collect nearly all light emitted by the filament and project it forward in a tightly controlled beam. To achieve the covert IR output, a dichroic filter is placed either within the lens assembly or coated onto the reflector. This filter is engineered using thin-film interference principles to highly transmit light in the desired Near-Infrared band (e.g., 800 to 950 nm) while sharply reflecting or absorbing the visible light spectrum. This spectral separation prevents the visible light from escaping the assembly, ensuring the illumination source remains essentially invisible to unassisted observers, a critical factor for successful nighttime low-level tactical maneuvering.

Note: The 722-1214-001 is a mission-critical component for night operations. It is not a life-limited part. Lamp replacement and electrical checks must be performed by a certified A&P or avionics technician. When testing, extreme caution must be exercised, as high-intensity IR light can be harmful to the human eye, even if visually dim.

Documentation

• Hoffman Engineering Installation and Maintenance Manual: Required for precise lamp replacement procedures, beam alignment, and electrical specifications.

• RTCA DO-160: Referenced Standard for Environmental Qualification.