CCD Spectroradiometer

The LMS-7000 spectroradiometer incorporates a high-precision Japanese CCD detector, delivering exceptional measurement speed, stability, and accuracy across multiple spectral ranges.

Technical Specifications

• Spectral Configurations: LMS-7000UV (200-400nm), LMS-7000UV-VIS (200-800nm), LMS-7000VIS (350-950nm), LMS-7000VIS-NIR (350-1050nm), LMS-7000UV-VIS-NIR (200-1050nm)
• Spectral Resolution: 0.8nm FWHM across all configurations
• Integration Time: 0.5ms to 10,000ms
• Detector Specifications: 3648-pixel CCD array with 8μm × 200μm pixel size
• Signal Performance: 1000:1 signal-to-noise ratio (full range) with 16-bit A/D conversion
• Interface: USB 2.0 connectivity with comprehensive software platform compatible with Windows 7 through Windows 11
• Optical Interface: SMA905 fiber optic port

Compliance Standards

This instrument supports testing in accordance with:

• LM-79-19 “Optical and Electrical Measurements of Solid State Lighting Products”
• IESNA LM-63-2 “IESNA Standard File Format for the Electronic Transfer of Photometric Data and Related Information”
• CIE 177 “Color Rendering of White LED Light Sources”
• CIE 84 “The Measurement of Luminous Flux”
• CIE 13.3 “Method of Measuring and Specifying Colour Rendering Properties of Light Sources”
• ANSI C78.377 “Specifications for the Chromaticity of Solid State Lighting Products for Electric Lamps”
• EU Commission Delegated Regulation 2019/2015

Typical Application

The LMS-7000 spectroradiometer is designed for comprehensive LED photometric and colorimetric testing. When integrated with an appropriate integrating sphere and calibrated standard lamp system (such as the LPCE-3 CCD Spectroradiometer Integrating Sphere Compact System), it performs the following measurements:

Measurement Capabilities

• Colorimetric Parameters: Chromaticity coordinates (x, y and u, v), relative spectral power distribution P(λ), correlated color temperature (Tc), color rendering index (Ra, R1-R15), color difference, dominant wavelength, peak wavelength, half-bandwidth, spectral purity, TM-30 metrics (Rf, Rg), CQS
• Photometric Parameters: Luminous flux (lumen), luminous efficacy, radiant power, EEI, PAR, PPF
• Electrical Parameters: Voltage, current, power, power factor, harmonic analysis (optional)

Performance Specifications

• Spectral Resolution: ±0.2nm
• Reproducibility: ±0.5nm
• Chromaticity Coordinate Accuracy: Δx, Δy: ±0.003
• Correlated Color Temperature Accuracy: ±1%