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A compact, lightweight, battery-powered
instrument with a 1° measurement angle
for high-accuracy non-contact measurements
of luminance and chromaticity
Easy-To-Read Display
Main Features
Compact and lightweight
Measurements of subjects at a distance
SLR (single-lens-reex) viewing system and are-free optical
system provide accurate measurements of subjects at a
distance with virtually no inuence from light outside the
measurement area.
Measurements of small subjects
1° measurement angle allows measurements of subjects as
small as ø14.4 mm (at a subject distance of 1014 mm); by
using optional Close-Up Lenses, subjects as small as ø1.3 mm
can be measured.
Luminance units of cd/m
2
or fL can be
selected
Main Applications
Light-Source Measurements
• Luminance and chromaticity of small light sources such as
LEDs, miniature neon lamps, etc.
• Luminance and chromaticity of general light sources such
as tungsten lamps, uorescent lamps, etc.
• Luminance and chromaticity of trafc signals, airport
guidance lights, emergency exit signs, etc.
Reective-Subject Measurements
• Color measurements of subjects which cannot be measured
by contact methods, such as distant building walls, just-
painted surfaces.
Display Measurements
• Luminance and chromaticity of projectors.
Field of view (9°)
Measured luminance
(cd/m
2
or fL)
Measuring area (1°)
Measured value
Measurement mode
Viewfinder Image
External display
⿎
Specication
Model Chroma Meter
CS-100A
Type SLR spot colorimeter for measuring light-source and surface luminance and chromaticity
Measuring angle 1°
Optical system 85 mm f/2.8 lens; SLR viewing system; are factor less than 1.5%
Angle of view 9° with 1° measurement area indication
Focusing distance 1014 mm (40 in.) to innity
Receptors 3 silicon photocells ltered to detect primary stimulus values for red, green and blue light
Spectral response Closely matches CIE 1931 Standard Observer curves (x¯
2
λ
, y¯
λ
, and z¯
λ
)
Response time
Switchable; FAST: Sampling time: 0.1s, Time to display: 0.8 to 1.0s
SLOW: Sampling time: 0.4s, Time to display: 1.4 to 1.6s
Luminance units cd/m
2
or fL (switchable)
Measuring range*
1
FAST: 0.01 to 299,000 cd/m
2
(0.01 to 87,530 fL)
SLOW: 0.01 to 49,900 cd/m
2
(0.01 to 14,500 fL)
Accuracy*
2
Luminance (Y): ±2% of reading ±1 digit
Chromaticity (x,y): FAST: 48.1 cd/m
2
or above: ±0.004; below 48.1 cd/m
2
: below measurement range
SLOW: 12.0 cd/m
2
or above: ±0.004; below 12.0 cd/m
2
: below measurement range
Repeatability*
1
Luminance (Y): ±0.2% of reading ±1 digit
Chromaticity (x,y) :
FAST: 100 cd/m
2
or above: ±0.001; 48.1 to 99.9 cd/m
2
: ±0.002; below 48.1 cd/m
2
: below measurement range
SLOW: 25.0 cd/m
2
or above: ±0.001; 12.0 to 24.9 cd/m
2
: ±0.002; below 12.0 cd/m
2
: below measurement range
Target value 1; set by measurement or numerical input
Measurement modes Absolute color: Yxy; color difference:
∆
(Yxy)
Display External: LCD; 3 values (Y, x, and y) of 3 digits each with additional indications
Viewnder: 3-digit LCD (showing luminance value Y) with LED backlight
Data communication RS-232C; baud rate: 4800 bps
External control Measurement process can be started by external device connected to data output terminal
Power source One 9 V battery; power can also be supplied via data output terminal
Operating temperature/humidity range 0 to 40°C, relative humidity 85% or less (at 35°C) with no condensation
Storage temperature /humidity range -20 to 55°C , relative humidity 85% or less (at 35°C) with no condensation
Dimensions 79x208x154 mm (3-1/8x8-3/16x6-1/16 in.)
Weight 890 g (2 lb.) without battery
Standard accessories Lens cap; Eyepiece cap; Protective lter, ND eyepiece lter; 9V battery; Chromaticity chart; Case
*1 Standard Illuminant A
*2 Standard Illuminant A measured at ambient temperature of 20 to 30ºC
Optional Accessories
Close-Up Lenses
Angle Finder V
N
Angle Finder V
N
allows the measuring
area and measurement display inside
the viewnder to be seen at an angle of
90° to the normal viewnder optical axis.
Angle Finder V
N
can also be focused and
the magnication can be set to 1x or 2x.
Data Management Software
CS-S10w Professional (Optional accessory)
Color space
:
L
v
x y, L
v
u’ v’, L
v
T
∆
uv , XYZ, dominant wavelength
Mode selection
:
Normal mode, Object color mode, Contrast mode
RGB mode, RGB & contrast mode
Instrument control
:
Average measurement, Interval measurement
Data management
:
Reading and saving les, Data management with folders
Creating, saving and loading templates
(customizable design/layouts for various graphs)
Various graph displays
Data evaluation
: Statistics display for each folder
Box tolerance setting, Multiple-point
measurement, uniformity display, contrast
display and polygon tolerance setting for display
evaluation
Other
: Creating reports in customizable screen layouts
System requirements
OS
Windows
®
XP Professional 32-bit SP3, 64-bit SP2
Windows
®
Vista Business 32-bit, 64-bit,
Windows
®
7 Professional 32-bit, 64-bit
CPU
Pentium
®
III 600 MHz equivalent or higher
Memory
128 MB min. (256 MB or more recommended)
Hard disk
60 MB or more space required for installation
Display
1024 X 768, 256 colors or more
Other
CD-ROM drive, USB port
Close-Up
Lenses
Minimum
measuring area
No.153 ø8.0 mm
No.135 ø5.2 mm
No.122 ø3.2 mm
No.110 ø1.3 mm
(Theoretical values)
⿎
System diagram
(Optional Accessories)
Close-Up Lenses
No. 153
No. 135
No. 122
No. 110
Angle Finder VN
White Calibration
Plate (for 45-0)
PC
Connecting Cable
LS-A12
Data Management Software
CS-S10w
Professional
⿎
Dimensions
(Units: mm)
38
19
208
176
85.8
151
58 49.6
154.3
57
40 28.5
16
60.3
44
78.7
Tripod socket
Standard plane
for distance
measurements
Chroma Meter
CS-10 0A
Chroma Meter CS-100A Chroma Meter CS-100A