|
Specification |
| Type |
SLR spot colorimeter
for measuring light-source and surface luminance and
chromaticity |
| Acceptance angle |
1° |
| Optical system |
85mm f/2.8 lens;
SLR viewing system; flare factor less than 1.5% |
| Angle of view |
9° with 1°
measurement area indication |
| Focusing distance |
1014mm (40 in.) to
infinity |
| Receptors |
3 silicon photocells
filtered to detect primary stimulus values for red, green,
and blue light Spectral response Closely matches CIE 1931
Standard Observer curves |
| Response time |
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/m² or fL (switchable) |
| Measuring range |
FAST: 0.01 to 299,000cd/m² (0.01
to 87,530fL); SLOW: 0.01 to 49,900cd/m² (0.01 to 14,500fL) |
| Accuracy |
Luminance (Y): ±2% of
reading ±1 digit
Chromaticity (x,y): ±0.004 (Illuminant A measured at ambient
temperature of 18 to 28°C/64 to 82°F) |
| Repeatability |
Luminance (Y): ±0.2%
of reading ±1 digit
Chromaticity (x,y): FAST: Y 100cd/m² or above: ±0.001; 48.1
to 99.9cd/m²: ±0.002; Below 48.1cd/m²: Below measurement
range
SLOW: Y 25.0cd/m² or above: ±0.001; 12.0 to 24.9cd/m²:
±0.002; Below 12.0cd/m²: Below measurement range
(Measurement subject: Illuminant A) |
| Target value |
set by measurement or
numerical input Measurement modes: Absolute color: Yxy;
Color difference: Δ(Yxy) |
| Display |
External: LCD; 3
values (Y, x, and y) of 3 digits each with additional
indications
Viewfinder: 3-digit LCD (showing luminance value Y with LED
backlight |
| Data communication |
RS-232C; baud rate:
4800bps |
| External control |
Measurement process
can be started by external device connected to data output
terminal |
| Power source |
One 9V 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 (W x H x
D) |
79 x 208 x 154mm |
| Weight |
890g without
battery |
| Standard
accessories |
Lens cap; Eyepiece
cap; Protective filter; ND eyepiece filter; 9V battery;
Chromaticity chart; Case |
