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參數(shù)資料
| 型號： | VL6524 |
| 廠商： | 意法半導體 |
| 英文描述： | VGA single-chip camera module |
| 中文描述： | 顯卡單芯片相機模塊 |
| 文件頁數(shù)： | 56/70頁 |
| 文件大?。?/td> | 505K |
| 代理商： | VL6524 |
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Optical specifications
VL6524/VS6524
56/70
12
Optical specifications
Table 30.
12.1
Average sensitivity
The average sensitivity is a measure of the image sensor response to a given light stimulus.
The optical stimulus is a white light source with a color temperature of 3200K, producing
uniform illumination at the surface of the sensor package. An IR blocking filter is added to
the light source. The analog gain of the sensor is set to x1. The exposure time,
t, is set as
50% of maximum. The illuminance, I, is adjusted so the average sensor output code, Xlight,
is roughly mid-range equivalent to a saturation level of 50%. Once Xlight has been recorded
the experiment is repeated with no illumination to give a value Xdark.
t
l
The sensitivity is then calculated as
second.
.The result is expressed in volts per lux-
The sensitivity of the VS6524 is given in
Table 31
.
Table 31.
Optical specifications
(1)
1.
All measurements made at 23°C ± 2°C
Parameter
Min.
Typ.
Max.
Unit
Optical format
1/6
inch
Effective focal length
2.5
mm
Aperture (F number)
2.8
Horizontal field of view
46
49
51
deg.
Vertical field of view
Diagonal field of view
(2)
35
37
39
deg.
2.
Value determined through calculation
57
59
61
deg.
Depth of field
(3)
3.
By design the device has an acceptable quality between hyperfocal distance /2 and infinity.
20
infinity
cm
TV distortion
-1.5
1.5
%
VS6524 average sensitivity
Optical parameter
Value
Unit
Average sensitivity
0.71
V/lux.s
-----------------–
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