Condential
4-14
EX762/EW762
4-10 Optical Performance Measure
Inspection Condition
- Environment luminance: 10.0 Lux
- Product must be warmed up for 5 minutes
- Distances from the screen: 1.95 M
- Screen Size: 60 inches diagonal
1. Test equipment
Procedure - Press "Power→ Left→ Left→ Menu" to get
into service mode 1.
- Select "Spoke Test"
2. Brightness
Procedure - Full white pattern
- Use CL100 to measure brightness values
of P1~P9.
- Follow the brightness formula to calculate
brightness values.
☼ Brightness Formula
Avg. (P1~P9)*1.1m
2
Criteria • 1400 ANSI lumen
3. Full On/Full Off Contrast
Procedure - Full white pattern & Full black pattern
- Use CL100 to measure brightness values of full
white pattern P5 & full black pattern B5
- Follow Contrast formula to calculate contrast
values.
☼ Contrast Formula
P5/B5
Full black pattern
Full white pattern