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Black-LED-365 - Fiber Coupled UV LED Light Source



The compact fiber-coupled high power LED light source module at 365 nm is an effective replacement of UV lasers and Hg lamps in many applications, such as spectroscopy, fluorometry and point curing.

This new member of the modular OptiBlocks family provides >50mW of CW power at fiber output (1500 micron core POF fibers). The LED driver supports CW or external TTL modulation with user controllable frequency and duty cycle.

black led-365

Key features

  • High Power
  • Narrow UV spectrum emission FWHM~10 nm
  • Excellent for fluorescence excitation
  • LED spectrum can be narrowed by optional band pass filter
  • Compact and robust head: 50mm x 50mm x 45mm
  • Precisely adjustable power
  • TTL external modulation (analog modulation is an option)
  • Long life (no lamp replacement required)
  • Replacement of Mercury Lamps, He-Cd lasers, Ar++ lasers, UV diode lasers


  • Fluorescence spectroscopy and Imaging
  • NADH, Quantum Dots, BFP, DAPI, Fura,
    Hoechst, excitation
  • Photolysis of caged compounds
  • Bio analysis
  • Curing

Optical Specifications


Wavelength  nm  365
Wavelength range  nm  ±5
Spectrum halfwidth  nm  10
Optical output connector           SMA / FC / ST

 Power output:

Black-LED power output is limited by the reciprocal fiber characteristics. Larger core and higher NA will increase maximum power output, and vice versa. The table below shows a few examples of the CW output power at different fibers:

Fiber brand Fiber type*¹ NA Fiber Core Diameter Output Power Type*²
Mitsubishi Rayon SH6001 Super Eska POF 0.5 1500 µm >50 mW
Mitsubishi Rayon SH4001 Super Eska POF 0.5 1000 µm >45 mW
Thorlabs BFH48-600 Silica High OH 0.48 600 µm >15 mW
Thorlabs BFH48-200 Silica High OH 0.48 200 µm >1.7 mW

*1: POF - Polymer Optical Fiber
*2: The measurement done by Ophir Nova II power meter equipped with PD300-UV head. The wavelength is set at 365nm

365nm Spectrum

 Benchtop LED Controller Specifications


The BLCC-02 bench top LED current controller has been designed to provide precisely controllable, low noise current for driving a variety of LEDs. The current controller can be configured to drive virtually any currently available LED including the high power LEDs in constant current (CW) or chopping mode defined by external TTL input. Analog modulation input is an option.


  • Constant current or chopping modes
  • Precise LED current setting by 10 turn dial
  • Safety features for HP and UV LEDs
  • TTL external trigger input
  • Optional Analog modulation input
  • Compact and robust enclosure
Benchtop LED Current Controller

Max. output current (factory set to fit LED max. current) mA 350 / 500 / 700
Output voltage   2 – 20V
Connector for TTL / Analog input   BNC
Connector for LED   9-pin D-type
Digital modulation frequency Hz DC-10000
Rise / Fall time (10% - 90%) µs 20
Input Voltage V 24
Max Input current A 1
Power Adaptor Input   100-240 VAC, 1 A, 47-63 Hz

 General Specifications

Operation temperature range    0C 10-35
Storage temperature range 0C -10-55
Operative relative humidity (Non condensing)                    %   <90
Head dimensions See drawing below
Head weight  g  250
Controller dimensions (LxWxH) mm   120 x 755 x 40  
Controller weight  g  300
Power adaptor dimensions (LxWxH) mm 95 x 55 x 35
Power adaptor weight  g  200

Mechanical drawings


 Optional Accessories


The output from optical fiber is divergent according to fiber NA. In order to reduce the divergent angle a collimator module can be used. Prizmatix collimator was especially designed to fit thick core high NA Polymer Optical Fibers.

See more info...

 Fiber Bundles:

To combine output of multiple LEDs a Y-shaped fiber bundle with two or more input branches can be used. Prizmatix can help to configure and build custom fiber bundles for specific applications.

See more info...

© Prizmatix, Israel