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သတင္းစံုေပ်ာ္၀င္အိုးၾကီးတြင္ ေဖာ္ျပထားသည့္ သတင္း၊ဓာတ္ပံုမ်ားသည္ သက္ဆိုင္သူမ်ား၏မူပိုင္သာျဖစ္ေၾကာင္း အသိေပးအပ္ပါသည္။

Monday, June 17, 2013

လူ႔ မ်က္လံုး Megapixel

လူ႔ မ်က္လံုး Megapixel
Monday, June 17, 2013

လူတစ္ဦးရဲ ႔ မ်က္လံုးမွာ 576 megapixels ရွိပါတယ္။ iPhone 5 မွာ 8 megapixel ဆုိေတာ့ မ်က္လံုးက ၇၂ ဆေတင္ သာပါတယ္။
မ်က္လံုးနဲ႔ ပက္သက္လို႔ သူ႔ရဲ ႔ ျမင္ႏိုင္စြမ္း အေသးစိတ္ Specification ကေတာ့ ေအာက္ပါ အတိုင္း ျဖစ္ပါတယ္။

Human Eye Specifications (typical):

Sensor (Retina) : 22mm diameter x 0.5mm thick (section); 10 layers

Resolution : 576MP equiv.

Visual Acuity : ~ 74 MP (Megapixels) (printed) to show detail at the limits of human visual acuity

ISO : 1 - 800 equivalent

Data Rate : 500,000 bits per second without colour or around 600,000 bits per second including colour.

Lens : 2 lenses - 16mm & 24mm diameter

Dynamic Range - Static : contrast ratio of around 100:1 (about 6 1/2 f-stops) (4 seconds)

Dynamic Range - Dynamic : contrast ratio of about 1,000,000:1 (about 20 f-stops) (30 minutes)

Focal Length : ~ 3.2mm - (~ 22mm 35mm equiv)

Aperture : f2.1 - f8.3 (f3.5 dark-adapted is claimed by the astronomical community)

FOV Field of View : 95° Out, 75° Down, 60° In, 60° Up

Color Space - 3D (non-linear) RGB

Color Sensitivity : 10,000,000 (ten million)

Color Range : 380 to 740 nm

White Balance : Automatic (constant perceived color under different lighting)

Refresh Rate : foveal vision (high-quality telescopic) - 3-4fps; peripheral vision (very inaccurate) - up to 90fps

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Ref: techblog
TechSpace Journal

http://blog.techspace.com.mm/2013/06/megapixel.html
 

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