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mermaid ventura 213/240 - Users manual Version 3.0
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Page 17 of 18
Appendix E: Optical Characteristics – ventura 240 T
The following items are measured under stable conditions. The optical characteristics should be measured in a dark room
or equivalent state with the methods shown in Note (1).
* Measuring equipment: TOPCON BM-5A, BM-5A
PHOTO RESEARCH PR650
* Ta = 25± 2
0
C, Vco = 5.0V, fdclk=97.5MHz, IL = 6.5 mArms
Item Symbol Condition Min. Typ Max Unit
Contrast Ratio
(Center of screen)
CR (400) - -
Rising T
R
- (15) - Response
Time at Ta
Falling T
F
- (20) -
msec
Luminance of White
(Center of Screen)
Y
L
-
230
-
cd/m
2
R
X
- 0.610 -
Red
R
Y
- 0.356 -
G
X
- 0.313 -
Green
G
Y
- 0.584 -
B
X
- 0.149 -
Blue
B
Y
- 0.317 -
W
X
- (0.315) -
Color
Chromaticity
(CIE)
White
W
Y
φ=0,
θ=0
Normal
Viewing
Angle
- 0.350 -
θ
L
- 80 -
Hor.
θ
R
- 80 -
φ
H
- 80 -
Viewing
Angle
Ver.
φ
L
CR≥10
- 80 -
Degrees