Konica Minolta T-10A /T-10MA/ T-10WSA/T-10WLA Test - color samples, Konica Minolta Measurement Fundamentals, ⿎⿎System diagram, ⿎⿎Software CL-S10w, ⿎⿎Dimensions (Units: mm), Main Specifications of CL-500A

W h a t is c o lo演r -色r e n性dとe rはin g p r o p e r t y ?

⿎⿎System diagram

<Standard Accessories>

⿎⿎Dimensions (Units: mm)

Center of receptor		Tripod socket; Depth: 5.5
window (bottom)	95

Since long ago, man has compared colors by arranging objects side-by-side and looking at them under natural light (sunlight). Although torches, candles, incandescent lamps and other light sources are also used for illumination, it has always been the standard practice to compare colors under natural light.

In addition to fluorescent lamps, LEDs (light emitting diodes) have recently been adopted as illuminating lamps. When comparing how these new types of lamps make objects look against how natural light makes them look, how closely the appearances match is called the “color-rendering property” of the lamp. A lamp that produces

a hue similar to that of natural light is said to have a good (high) color-rendering property.

The color-rendering index is a quantification of the color-rendering properties of a lamp or other light source, and was defined to provide objective criteria. The color-rendering index expresses the comparison between the light source being tested and a standard

D50	Daylight white	LED bulb
fluorescent lamp	fluorescent lamp

Standard illuminant	Light source
(CIE daylight)	being tested

Illuminance	USB Cable
	IF-A17
Spectrophotometer		AC adapter *
CL-500A	Data Management
	Software	*Shape may vary
	CL-S10w
		by region.

Wrist Strap	Soft Case	Cap
CR-A73	FD-A05	T-A13

<Optional Accessories>

Hood	Personal computer
CL-A11	(Commercial product)

		MENU
		165
	MEAS.
			72
11.2	φ45.2		11
Receptor window		Reference plane
	φ48
φ10.5			70
Center of receptor window		95	Tripod socket; Depth: 5.5

illuminant*. The maximum value is 100, with the value decreasing as the color-rendering difference increases, indicating how far the appearance under the test light source is from the natural color under sunlight.

*Standard illuminant with the same color temperature as the light source being tested. (Light along the blackbody locus corresponds to sunlight.)

Main Specifications of CL-500A
⿎Model⿎	Illuminance Spectrophotometer CL-500A
Illuminance meter	Conforms to requirements for Class AA of JIS C 1609-1: 2006
class	"Illuminance meters Part 1: General measuring instruments"*1
	Conforms to DIN 5032 Part 7 Class B
Spectral wavelength	360 to 780 nm
range
Output wavelength	1 nm
pitch
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)
Accuracy*4, 5	Ev (Illuminance) : ±2%±1 digit of displayed value

Main specifications of Data Management
⿎⿎Software CL-S10w
Type	Add-in for Excel®
	(Excel® is required to use this add-in.)
Operating	One of the following environments with Excel® installed:
environment	* Languages in parenthesis ( ) are the OS language.
	Windows® XP + Excel® 2003 (English, Japanese, or Simplified
	Chinese)
	Windows® 7 + Excel® 2010 (English, Japanese, or Simplified
	Chinese)
	* For details on system requirements for above versions
	of Windows® and/or Excel®, refer to their respective
	specifications.
	* Not compatible with 64-bit versions of office 2010.

Color-rendering indexes include the general color rendering index (Ra) and special color- rendering indexes (R1 to R15)

Test - color samples

No. 1

No. 2

No. 3

No. 4

No. 5

No. 6

No. 7

No. 8

The general color-rendering

index uses low-chroma colors

with a Munsell Value of 6 and

Chroma between 4 and 8.

No. 9

No. 10

No. 11

No. 12

No. 13

No. 14

No. 15

No. 9 to No. 15 are realistic

colors. No. 15 is the

average skin color of Asian

Red

Yellow

Green

Blue

Average

Tree-leave

Average

women.

Smaller

index

Caucasian

green

Asian

values indicate

skin color

skin color

larger color

shifts.

The average of the color-rendering indexes for test colors No.

General color-rendering index (Ra)

1 to 8.

Special color-rendering indexes (Ri)

The individual color-rendering index for test colors No. 1 to 15

(The index for each individual color is evaluated.)

To learn more about the theory and practice of light and color measurement, please visit

http://www.konicaminolta.com/instruments/knowledge/index.html

Konica Minolta Measurement Fundamentals

(Standard Illuminant A)	xy: ±0.0015 (10 to 100,000 lx)
	xy: ±0.002	(5 to 10 lx)
Repeatability (2σ)*4	Ev: 0.5%+1 digit
(Standard Illuminant A)	xy: 0.0005 (500 to 100,000 lx)
	xy: 0.001 (100 to 500 lx)
	xy: 0.002 (30 to 100 lx)
	xy: 0.004	(5 to 30 lx)
Visible-region relative	Within 1.5% of spectral luminous efficiency V (λ)
spectral response
characteristics (f1')
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 accurary) mode:
		Approx. 0.5 to 27 sec.
Display modes	XYZ; X10Y10Z10; Evxy; Evu'v'; Ev; Dominant wavelength, Excitation purity;
	Correlated color temperature, ∆uv; General color-rendering index (Ra);
	Special color-rendering indexes (Ri (i=1~15)); Spectral graph; Peak
	wavelength; ∆ (XYZ); ∆ (X10Y10Z10); ∆ (Evxy); ∆ (Evu'v'); Rank display
Other functions	Data memory: 100 data; User calibration function (when connected to
	computer); Continuous measurement (when connected to computer);
	Auto off function
Display languages	English, Japanese, Chinese (Simplified)
Interface	USB 2.0
Power	Rechargeable internal lithium-ion battery (Operating time per charge:
	Approx. 6 hours when new); AC adapter; USB power bus
Operating temperature/ -10 to 40°C, relative humidity of 85% or less (at 35°C) with no
humidity range	condensation
Storage temperature/	-10 to 45°C, relative humidity of 85% or less (at 35°C) with no
humidity range	condensation
Dimensions	70 × 165 × 83 mm
(W × D × H)
Weight	350 g

*1 For Section 7.6.3 Response Time, when measurement speed mode is set to FAST mode.

*2 For 585.3 nm, evaluation performed using substitute wavelength of 587.5 nm.

*3 Based on Konica Minolta test standards (change in temperature of 2°C or less after zero calibration.)

*4 Automatic exposure time setting (high accuracy) mode

*5 Linear for Ev (Illuminance)

Compatible	CL-500A, CL-200A, CL-200
instruments
Display items	Spectral irradiance (W/m2/nm); general color-rendering index
	Ra, correlated color temperature, etc.

12 Illuminance Spectrophotometer CL-500A Illuminance Spectrophotometer CL-500A 13