What’s meaning of Class L and Class A for Photo Detector?

LISUN can provide very fine Photo Detectors. They are NIM traceable (directly compared with NIM standard head) and is validated to PTB of Germany.

Problem of the part filtering technology: the tested light on the photo detector must be strictly uniform, otherwise even for a so called f1’=0.5% photo detector, its actual f1’ may exceed 10%.

Full-filtering technology: in order to achieve a high-performance photometer head, the filters should be specially designed, and the thickness error should be strictly limited within 1μm.

1. Requirements and Classification of Photogoniometer Detectors as per JJG245-2005

2. Requirements and classification of Photometer Detector as per DIN.5032 Part 7

LISUN LSG-6000 type C mirror goniophotometer applicated with Class L photo detector to fully meet LM-79-19

LISUN LPCE-2 High Precision Integrating Sphere Spectroradiometer System applicated with Class A photo detector

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Surge Generator, EMC Test Systems, ESD Simulator, EMI Test Receiver, Electrical Safety Tester, Integrating Sphere, Temperature Chamber, Salt Spray Test, Environmental Test Chamber, LED Test Instruments, CFL Test Instruments, Spectroradiometer, Waterproof Test Equipment, Plug and Switch Testing, AC and DC Power Supply.

Please feel free to contact us if you need any support.
Tech Dep: Service@Lisungroup.com, Cell/WhatsApp:+8615317907381
Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp:+8618917996096

Tags：LMS-6000 , LSG-1700 , LSG-1890B , LSG-6000 , PHOTO-100 , PHOTO-100L