LPCE-2 (LMS-8000) Integrating Sphere Spectroradiometer LED Measurement System

LPCE-2 (LMS-8000) is an Integrating Sphere Spectroradiometer LED Measurement System designed for comprehensive performance evaluation of single LEDs and LED lamps. LED quality assessment requires verification of photometric, colorimetric, and electrical parameters. According to CIE 177, CIE 84, CIE 13.3, IES LM-79, Optical Engineering 49-3-033602, IESNA LM-63-2, ANSI C78.377, and IES LM 79-08 standards, the recommended methodology for SSL product testing employs an array spectroradiometer integrated with an optical sphere and photometer head. LISUN engineered the LPCE-2 test system specifically for LED product validation. LMS-8000AS represents the enhanced iteration of LMS-8000A, featuring dual integrating sphere connectivity. This configuration enables seamless switching between measurement spheres without requiring detector cable or optical fiber disconnection between large and small spheres.

Compliance Standards: CIE 177 “Color Rendering of White LED Light Sources,” CIE 84 “Measurement of Luminous Flux,” CIE 13.3 “Method of Measuring and Specifying Colour Rendering Properties of Light Sources,” LM-79-19 “Optical and Electrical Measurements of Solid State Lighting Products,” IESNA LM-63-2 “IESNA Standard File Format for Electronic Transfer of Photometric Data,” IES LM-80-08 “Measuring Lumen Maintenance of LED Light Sources,” ANSI C78.377 “Chromaticity Specifications for Solid State Lighting Products,” EU 2019/2015 Commission Delegated Regulation.

System Configuration: CCD Spectroradiometer (LMS-8000A or LMS-8000AS), Optical Fiber (CFO-1.5M), Digital Power Meter (LS2008R), AC Power Source (LSP-500VA), Integrating Sphere (IS-1.5MA55C and IS-0.3M), Standard Light Source (SLS-50W and SLS-10W).

Measurement Parameters:

• Colorimetric: Total Radiant Intensity, Dominant Wavelength, Peak Wavelength, Color Coordinates, Half-Bandwidth, Spectral Purity, Correlated Color Temperature (CCT), Color Rendering Index (CRI)
• Photometric: Total Luminous Flux, Luminous Efficiency, Radiant
• Electrical: Forward Voltage…