လူ့ မျက်လုံး Megapixel
လူတစ်ဦးရဲ့ မျက်လုံးမှာ 576 megapixels ရှိပါတယ်။ iPhone 5 မှာ 8 megapixel ဆိုတော့ မျက်လုံးက ၇၂ ဆတေင် သာပါတယ်။
မျက်လုံးနဲ့ ပက်သက်လို့ သူ့ရဲ့ မြင်နိုင်စွမ်း အသေးစိတ် Specification ကတော့ အောက်ပါ အတိုင်း ဖြစ်ပါတယ်။
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
Aung Kham (TSJ team)
