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What’s meaning of Class L and Class A for Photo Detector?
03 Feb, 2013 5190 Author: root

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. Photo Detector 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 a...

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LED Junction Temperature Measurement|Thermal Performance Test for LED
02 Jan, 2013 2929 Author: root

LED Junction Temperature Measurement|Thermal Performance Test for LED

At present, LED and LED lamps and lanterns can’t achieve ideal service life due to the reason of the performance of LED. The LED junction temperature in the working status is not only the direct key to its life and efficacy, but is also influenced by the thermal resistance under the same service conditions. The feasibility of the heat conduction system design of LED also directly affects the li...

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Spectrophotometer and Colorimeter
21 Nov, 2012 3558 Author: root

Spectrophotometer and Colorimeter

When choosing the instrument to purchase or use for the application, it is very important to understand the types of instruments available for measuring color. A colorimeter or spectrophotometer can be used to measure any test substance that is itself colored or can be reacted to produce a color. Both colorimeter and spectrophotometer provide data obtained over the same range of visible wavele...

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2012 HKTDC Lighting Fair Autumn Edition
27 Oct, 2012 2734 Author: root

2012 HKTDC Lighting Fair Autumn Edition

Lisun attended Hongkong Lighting Fair dated 27th October to October 30th 2012, during the exhibition, Lisun showed many high excellence testing equipments to visitors, like 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 T...

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LISUN Will Attend HKTDC Hong Kong International Lighting Fair
27 Sep, 2012 2691 Author: root

LISUN Will Attend HKTDC Hong Kong International Lighting Fair

Fair: Hong Kong International Lighting Fair 2012 (Autumn Edition) Date: 2012/10/27-2012/10/30 City: Hong Kong Exhibition Hall: Hong Kong Convention and Exhibition Centre Organizers: Hong Kong Trade Development Council Booth of Lisun Electronics: ED-A01 Hong Kong International Lighting Fair is held by Hong Kong Trade Development Council since 1999. The large numbers of buyers and exhibitors, as we...

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CIE Lighting Body and Standard Illuminant
07 Sep, 2012 3291 Author: root

CIE Lighting Body and Standard Illuminant

When you measure the photometric and chromaticity properties of optical system, it must be under the uniformly prescribed light source, the test result can be compared with each other. In order to unite the measurement standards, the International Commission on Illumination (CIE) provides the lighting body and standard illuminant. The definition of “illuminant” and “lighting body” by CIE s...

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LISUN Moves to New Office
30 Jul, 2012 2785 Author: root

LISUN Moves to New Office

In order to expand its business, Lisun decides to move Lisun Electronics Shanghai to a new office. Lisun built a high level products show room & lab center in Shanghai: Goniophotometer with standard dark room, high precision Integrating Sphere and Spectroradiometer and other test instruments. The new Lisun Electronics Shanghai office will be open from July 30th, 2012. The new address is sh...

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IESNA-LM-79-08 Test Solution: Goniophotometer
27 Jun, 2012 3467 Author: root

IESNA-LM-79-08 Test Solution: Goniophotometer

The U.S. Government issued her LED test standards IESNA-LM-79-08. This approved method is a guide developed for the measurement of Solid State Lighting (SSL) products such as LED Street Light, LED Flood Light, LED Down Light, LED Ceiling Light, LED Par Light, LED Tube, LED Module and so on. The most of LED fixtures manufactory use the Integrating Sphere to do the color and photo parameters ...

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Software update for LMS-5000
26 Jun, 2012 3528 Author: root

Software update for LMS-5000

Lisun updated the Spectrophotometer of LMS-5000 software. The new version software updated serval function to make the customer have a much experience. LMS-5000 is a high accuracy and quick scan spectrophotometer, it worked with integrating sphere as a whole test system named LPCE-1 to test luminaires flux, color temperature, spectrum and other parameters. Please send your request email to Lisu...

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