UV&lR solutions

Precision Infrared Illumination: A Technical Case Study on the IHY299 High Power IR COB Engine

Explore IHY Lighting’s mass produced IHY299 Infrared (IR) COB series. Featuring 850nm and 940nm dominant wavelengths, ultra-compact 40×40 mm aluminum substrates, and customized 12V drive options for surveillance cameras and medical beauty devices.

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Introduction: Engineering the Next Generation of IR Illumination

In high performance optoelectronic design, selecting the right light engine determines the boundary between a standard product and an industry leading solution. Infrared applications ranging from night vision security cameras to photothermal medical devices demand extreme thermal stability, compact optical geometry, and exceptional beam uniformity.

For years, optical hardware engineers relied on arrays of discrete SMD IR LEDs to deliver high power illumination. However, SMD arrays often present severe layout bottlenecks: high thermal resistance, uneven light intensity (“hotspots”), and bulky physical footprints.

The IHY299 Series is IHY Lighting’s engineering response to these optical limitations. Designed as an integrated 20W high power COB, the IHY299 demonstrates how customized COB packaging elevates system performance for OEMs and ODMs worldwide.

1. Optical Metrics: Dominant Wavelength vs. Peak Wavelength

When specifying infrared LEDs, engineers often encounter ambiguity between Dominant Wavelength (λd) and Peak Wavelength (λp). Understanding this distinction is critical for precise optical matching.

  • Peak Wavelength (λp): The exact physical point in the spectral distribution curve where the light output reaches its absolute maximum radiant power.
  • Dominant Wavelength (λd): The single calculated wavelength that represents the perceived spectral center of the light source, taking into account the broader spectral distribution curve.

For the IHY299 series, all optical metrics are defined by Dominant Wavelength, ensuring strict consistency in camera sensor responsiveness and biological skin penetration across production batches.

2. Product Specifications: MassProduced IHY299 Variants

The IHY299 series is currently in full volume production in two primary infrared band options:

 

Item IHY299-20W-64L (850nm) IHY299-20W-64L (940nm) OEM/ODM  Custom Advantage
Dominant Wavelength 850 nm 940 nm Different wavelength for choose
Power 20 W 20 W Fully customizable array power ratings
LED Chip Quantity 64L (8×8 Array) 64L (8×8 Array) Matrix density tailored to optical requirements
Operating Voltage (Vf) 12 V DC 12 V DC Matched to standard system power supplies
Operating Current (If) 1600 mA 1600 mA Low internal resistance design
Substrate Dimensions 40.0 × 40.0 × 1.0 mm 40.0 × 40.0 × 1.0 mm Ultra thin aluminum substrate with low thermal impedance
Light Emitting Surface 25.0 × 25.0 mm 25.0 × 25.0 mm Compact, highly concentrated square emission footprint

 

3. COB Architecture vs. Discrete SMD Arrays

Why switch from traditional SMD IR LED patches to integrated COB modules?

        (1)UltraThin Physical Footprint

By bonding bare semiconductor chips directly onto a high thermal conductivity metal core PCB (MCPCB), the IHY299 eliminates outer packaging, lead frames, and heavy plastic housings. With a base thickness of just 1.0 mm, it fits seamlessly into tight optical housings and ultra compact hardware designs.

       (2)Superior Optical Uniformity

Discrete SMD LEDs create localized intensity spikes (“hotspots”) and dark zones between packages. The IHY299 arranges 64 bare chips in a high density 25×25 mm matrix under a continuous protective encapsulant, producing a smooth, highly uniform planar beam profile.

        (3)Flexible Emission Geometries & Tailored Driving Parameters

Standard SMD packages lock designers into fixed 3528 or 5050 dimensions. With IHY’s COB platform, substrate outlines, mounting holes, forward voltage (Vf), drive current (If), and emitting area (LES) can be completely engineered around your product’s mechanical enclosure.

4. Primary Target Applications

         (1) Infrared Security & NightVision Cameras

  • 850nm Variant: Offers superior CMOS sensor quantum efficiency, providing extended illumination range for longdistance surveillance cameras, license plate recognition (LPR), and industrial vision.
  • 940nm Variant: Emits zero visible red glow (completely covert to the human eye), making it ideal for discrete indoor monitoring, covert security, and traffic monitoring systems.

         (2)Photothermal & Medical Beauty Instruments

  • Deep Tissue Heating: NIR wavelengths penetrate deep into dermal layers to stimulate local blood circulation and cellular metabolism.
  • Targeted Light Therapy: The 25×25 mm uniform emitting surface provides stable, balanced radiant flux for handheld antiaging wands, skin tightening panels, and pain relief therapy equipment.

5. Frequently Asked Questions (RFQ)

Q: Can this product pass international compliance and safety certifications?

A: Yes. The IHY299 series is designed to comply with CE, RoHS, EN 62471,and FDA standards. If your project requires specific certifications (such as IEC or REACH compliance), we can adjust component selection and testing procedures during prototyping to meet your target market requirements.

Q: What’s the typical custom sampling turnaround time?

A: For standard single function light sources using existing substrates, sample production takes within 1 week. For complex, highly customized requests (involving custom FPC outlines, non standard voltages, or multi spectrum layouts), lead times are evaluated directly based on project requirements.

Q: Do you provide engineering drawings before prototyping?

A: Absolutely. We provide detailed CAD engineering drawings for your confirmation before manufacturing any physical prototypes. This eliminates design misunderstandings, prevents costly sample iterations, and helps accelerate your time to market.

 

Conclusion: Partnering with IHY Lighting

From single-wavelength IR illuminators to multi-spectral custom COB modules, IHY Lighting delivers end to end engineering support from initial optical simulation to mass production. Ready to integrate the IHY299 into your hardware line?

Visit www.ihylight.com or contact our R&D engineering team to request evaluation samples and technical datasheets!

 

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As a national high-tech enterprise, IHY Lighting pioneer tailored COB light engines and intelligent lighting systems — engineered in-house from R&D to production.  With 10+ years of optoelectronic expertise, we empower 8,000+ clients across 37+ countries, from surgical device manufacturers to luxury yacht builders.