ALE/3 UV-LED Light Sources to Replace Conventional Spot Curing Lamps
The question was how to make our technology available to a broader customer base. The answer is Primelite’s UV-LED fiber-coupled light source ALE/3 (Advanced Light Engine THREE). It is your first choice for UV curing use cases that demand precision and reliability, but less power than our highest-performing UV-LED exposure systems deliver
The ALE/3’s optical output, build size, and control interfaces match or surpass the specifications of popular UV light curing units using conventional 200 W mercury discharge lamps or LED technology at a comparable power output level. The ALE/3 connects to our proven high-transmission LED Light Guides to flexibly deliver narrowband or broadband UV radiation exactly where you need it in your particular setup.
ALE/3 UV-LED Fiber-Coupled Light Source Highlights:
- Up to 15 watts of optical output
- Narrowband and broadband setups available (NUV / VIS / NIR)
- UV-LED technology for longer life and lower TCO
- Field-replaceable LED modules
- Easy to integrate into new and existing setups
- Zero-maintenance thermo-electric cooling
- No mercury! Safe and future-proof LED light source
- Premium, made-in-Germany quality
ALE/3 UV-LED Fiber-Coupled Light Source Overview
Our ALE/3 LED spot light source is rooted in high-volume automotive manufacturing. Equipment destined for this industry’s assembly lines has to live up to some of the most demanding expectations. Automakers want tools that leave a tiny footprint, are ready for automation, and perform reliably, always. For good reason: Even brief unscheduled downtime can cost more than the company spent on installing UV curing units. The ALE/3 LED spot light source excels in such challenging environments. Its capacity to deliver high and stable output with little to no maintenance has won over many customers in the defense, electronics, medical engineering, and optics manufacturing sectors.
Low-Maintenance UV-LED Spot Light Solution
ALE/3 systems are ultra-compact light guide-coupled LED light sources that are easy to set up and operate. They require practically no maintenance. The innovative internal thermo-electric heat management keeps the installed high-power LED Module cool to maximize service life. ALE/3 LED Modules are field-replaceable – no tools required for a quick change.
Our ALE/3 Light Engine comes with an intuitive touch display for system setup and supports various standard interfaces to operate the unit. These include debounced inputs for simple external switching devices, USB (serial), a discrete PLC interface (TTL), and Ethernet or Modbus communication.
High-Transmission Liquid Light Guides for LED Sources
LEDs are high-NA light emitters with a broad angular radiation pattern. Efficiency is paramount in setups that pair LEDs with light guides. These light guides have to transmit maximum radiation to the target point. This means the LED source’s NA has to match light guide’s NA, which is why conventional low-NA fiber light guides cannot do the job.
We offer single- and multi-pole LED Light Guides perfectly matched to our ALE/1 LED light source. They typically deliver two to three times as much power as conventional silica fiber light guides, yet are just as flexible and long-lasting.
Choose standard or custom LED Light Guides to suit your needs. Options include:
- Optimized transmission spectrum (UV, VIS, or NIR Core)
- Active core diameter: Ø5.0, Ø6.5, and Ø8.0 mm
- Any customer-specific length up to 20 m
LED Performance Optics
Be sure to check out our LED Performance Optics. Our LED Light Guides’ numerical output aperture is around 0.6 (α ~ ±35°), so our lens systems are a remarkably affordable add-on to reduce divergence or even focus radiation for maximum intensity. Our LED Performance Optics are also an excellent choice if you want to improve the uniformity of the exposure field, which can be hexagonal or square.
Primelite’s LED Performance Optics exclusively use UV-grade material.
ALE/3 UV-LED Fiber-Coupled Light Source Output
Many applications, particularly UV curing, benefit from a broader exposure spectrum. That is why ALE/3 LED spot light sources can handle two separate wavelength channels you can set up and control individually. You may opt for our high-output single CWL LED Modules with an emission spectrum in the near ultraviolet (NUV), visible (VIS), and near infrared (NIR) ranges. Or you may go with our broadband solution featuring central wavelengths at 365 nm and 405 nm that perfectly match the NUV output power and spectrum of a typical 200 W mercury discharge lamp.
Selection of Available Near UV Spectra
Dual CWL Broadband Near UV Option
Power
| Radiation [mW]1 | ALE/3 | ||
|---|---|---|---|
| LED Light Guide | Ø5.0 | Ø6.53 | Ø8.0 |
| CWL 365 nm2 | 7,000 | 11,000 | 13,000 |
| CWL 385 nm2 | 9,500 | 13,000 | 15,000 |
| CWL 405 nm2 | 9,500 | 13,000 | 15,000 |
| CWL 436 nm2 | 7,000 | 11,000 | 13,000 |
| CWL 365 - 405 nm2 | — | 12,000 | 14,000 |
1Power of each LED Module measured at end of light guide (length 1.5 m); deviation of ±10% possible
2CWL of emitters: 367.5±2.5 nm, 387.5±2.5 nm, 402.5±2.5 nm, or 435.0±2.5 nm
3Ø6.5 mm light guides with anti-reflective coating
System Properties and Specifications
| Emitter options | Near UV (NUV): | 365 / 385 / 405 / 436 nm | |
| 365 - 405 nm (dual CWL broadband) | |||
| Visible (VIS): | 470 / 520 / 620 / 660 / 690 nm | ||
| Near IR (NIR): | 730 / 770 / 810 / 850 / 970 / 1,050 nm | ||
| Numerical aperture | NA 0.6 (2α ~70°) | ||
| Output control |
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| Communication interfaces |
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| Thermal management | Integrated thermo-electric cooling | ||
| Dimensions (W H D) | 14.5 X 16.5 X 34 cm | 5.7 X 6.5 X 13.4" | |
| Weight | 6 kg | 13.2 lbs | |
| Power supply | 110-240 VAC / 50-60 Hz / 350 W | ||
| Light guide options |
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