DMF682ANY-EB

(AF)

No.2000-0057

OPTREX CORPORATION

Page 9/18

OPTREX

3.3.Definition of Viewing Angle and Optimum Viewing Area

･Point ● shows the point where contrast ratio is measured. : θ= 0 ﾟ, φ=－ﾟ

･Area

shows typ. CR≧2

3.4.System Block Diagram

270 ﾟ

0 ﾟ

90 ﾟ

180 ﾟ

270 ﾟ

θ

φ

135 ﾟ

315 ﾟ

225 ﾟ

45 ﾟ

180 ﾟ

90 ﾟ

(φ= 0 ﾟ）

φ

10 20 30 40 50

θ

φ

Halogen bulb

Computer

Rotation Table (θ,φ)

Temperature Chamber

LCD

Optical Fiber

Waveform Generator

Control Unit &

#1980A WB

Photometer

θ