CL-500A Illuminance Spectrophotometer

The CL-500A is a lightweight, compact illuminance spectrophotometer used for the evaluation of high-class, next-generation lamps such as LED and EL illumination. It is the first handheld illuminance spectrophotometer to conform to both DIN and JIS standards. The CL-500A can measure illuminance, color temperature, CRI (Color Rendering Index), chromaticity, and spectral power distribution. Plus, the S/P ratio of scotopic illuminance and photopic illuminance can also be displayed.

The CL-500A's convenient measurement functions include continuous measurement mode, display of the averaging of multiple measurements, delayed-measurement function, and the display of data at a specific wavelength. The spectral irradiance can be measured at 1-nm pitch from 360 to 780nm, so it can be used for measuring the color of light and photosynthetic photon flux density (PPFD). High speed measurement is possible using the Software Development kit (5 times/second).

The data management software CL-s10w, is included as a standard accessory. It includes a template for expressing the chromaticity variation of illumination light sources such as LEDs or OLEDs in terms of the MacAdam SDCM (Standard Deviation of Color Matching) step. This allows display of color differences that closely match visual judgment. The software is also equipped with an LED binning function and a spectral irradiance waveform display.

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很久以前,人類就把物體並排放在自然光(太陽光)下觀察,比較各種顏色。儘管火把、蠟燭、白熾燈以及其他光源也都用來照明,但一直只有在自然光下比較顏色才是標準做法。 除了熒光燈,最近LED(發光二極管)也已被用作照明燈。物體在這些光源下顯示的色貌與其在自然光下原色貌進行比較,兩者的接近程度就是光源的"顯色性"。 光源顯示的色調越接近自然原色,其顯色性就越好(或越高)。顯色指數是對燈或其他光源顯色性的量化結果,旨在提供客觀標準。顯色指數表示被測光源和標準光源※的接近程度。最大值為100。顯色差異越大,值越小,說明被測光源顯示的顏色和自然原色的差距越大。 *標準光源和被測光源的色溫相同。(光源的黑體軌跡與太陽光對應。)
簡便易用的Excel® 附加軟件 直接將CL-500A測量數據讀入到Excel表格中。然後可使用Excel的功能輕鬆執行數據處理。
•測量和評估室內照明源(例如LED)的照度、色溫和顯色指數、有機EL光源、螢光燈等 •測量和評估用於電視的特殊照明源的照度,色溫和顯色指數 •廣播電台、演播室、舞台、活動等 •測量包括日光在內的環境照明。 •測量各種類型的投影儀的照度和色溫。 •測量用於農業的光源的光合光子通量密度(PPFD)。 •用於照度計或照度色度計的標準儀器。
Model CL-500A
Illuminance meter class Conforms to requirements for Class AA of JIS C 1609-1: 2006 "illuminance meters Part 1:
General measuring instruments Conforms to DIN5032 Part 7 Class B
Spectral wavelength range 360 to 780 nm
Output wavelength pitch 1 nm
Spectral bandwidth Approx. 10 nm (half bandwidth)
Wavelength precision +-0.3 nm (Median wavelengths of 435.8 nm, 546.1 nm, and 585.3 nm*2 as specified in JIS Z 8724)*3
Measuring range 0.1 to 100,000 lx (chromaticity display requires 5 lx or more)
(Standard illuminants A)
Ev (Illuminance) : +-2%+-1 digit of displayed value
xy: +-0.0015 (10 to 100,000 lx)
xy: +-0.002 (5 to 10 lx)
Repeatability (2 sigma;) (Standard illuminant A) Ev: 0.5% + 1digit
xy: .0005 (500 to 100,000 lx)
xy: .001 (100 to 500 lx)
xy: .002 (30 to 100 lx)
xy: 0.004 (5 to 30 lx)
Visible-region relative spectral response characteristics (f) Within 1.5% of spectral luminous efficiency V ( λ)
Cosine response (f2) Ev: Within 3%
Temperature drift (fT) Ev: +-3% of displayed value; xy: +-0.003
Humidity drift (fH) Ev: +-3% of displayed value; xy: +-0.003
Measurement time Super Fast mode: Approx. 0.2 sec. (when connected to computer);
Fast mode: Approx. 0.5 sec.;
Slow mode: Approx. 2.5 sec.;
Automatic exposure time setting (high accuracy) mode: Approx. 0.5 to 27 sec.
Color indication modes XYZ; X10Y10Z10; Evxy; Ev; Ev; Dominant wavelength, Excitation purity; Correlated color temperature, Delta;uv; General color-rendering index (Ra); Special color-rendering indexes (Ri (i=1~15)); Spectral graph; Peak wavelength; Delta(XYZ);Delta(X10Y10Z10);Delta (Evxy);Delta (Ev); Rank display; Scotopic illuminance; S/P ratio; Spectral irradiance
Other functions Data memory: 100 data; User calibration function (when connected to computer); Averaged measurements; Delayed Measurment; Continuous measurement; Auto power off function
Display languages English, Japanese, Chinese (Simplified)
Interface USB 2.0
Power source Rechargeable internal lithium-ion battery (Operating time per charge: Approx. 6 hours when new); AC adapter; USB power bus
Operating temperature/humidity range -10 to 40°C, relative humidity of 85% or less (at 35°C) with no condensation
Storage temperature/humidity rangen -10 to 40° C, relative humidity 85% or less (at 35° C) with no condensation
Dimensions (W x H x D) 70 x 165 x 83 mm
Weight 350 g