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2006.12.22†

Projector system measurement
Single loop coil + Glass screen(Subj:Takeshi)

a=25.5
b=20
c=31
d=35
e=39
f=6
g=3.5
h=3

Vertical size: IDL> print,2*atan(200./385/2)/3.1415926*180

     29.1206

Horizontal size: IDL> print,2*atan(255./385/2)/3.1415926*180

     36.6465

2006.12.05†

Physical Screen size

2006.1.5†

Visual angle measurement for AVOTEC goggle.
Input signal: 800x600 pixel

250cm in distance.

Vertical height: 76~95 cm (79)
Horizontal width: 101~124 cm (105)

IDL> print,2*atan(76./500)/3.1415926*180

     17.2856~

IDL> print,2*atan(95./500)/3.1415926*180

     21.5159~

IDL> print,2*atan(101./500)/3.1415926*180

     22.8401~

IDL> print,2*atan(124./500)/3.1415926*180

     27.8567~

Visual Angle:
Vertical height: 17.2856 ~ 21.5159 (17.9570)degree
Horizontal width: 22.8401 ~ 27.8567 (23.7196)degree

34.9 ~ 28.3 (33.5) pixels / degree

LCD resolution: 832H x 624V
Fiber Count: 530H x 400V