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Stabilized light sources for PMT

L11416

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LED light sources mainly designed for adjusting the sensitivity of PMT(photomultiplier tubes) and PMT modules. The L11416 series is a test tube type easily mounted in lab devices such as for blood sampling. It contains a photodiode to monitor and control the LED emission intensity so that they constantly output stable light of approximately 1 pW.

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Specifications

Parameter L11416-470 L11416-525 L11416-555 L11416-590 Unit
Peak emission wavelength 465 522 555 592 nm
Spectral half width 26 35 30 18 nm
Light emission power 1 ± 0.5 *1 pW
Emission stability (0 °C to +50 °C) ±2 Max. %
Battery Button battery SR41 or equivalent -
Battery service life Min. 24 h
Operating ambient temperature / humidity *2 0 °C to +50 °C / below 85 % -
Storage temperature / humidity *2 -20 °C to +60 °C / below 85 % -
Weight 13 g

*1 Adjusted by using a 22 mm effective diameter photon counting head placed at a position 5 mm away from the L11416.
*2 No condensation

Internal diagram

 

 

Emission spectrum

L11416-470

L11416-525

L11416-555

L11416-590

Dimensional outline (Unit mm)

 

 

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