参数资料
型号: ISL29001IROZ
厂商: Intersil
文件页数: 9/11页
文件大小: 0K
描述: IC SENSOR LIGHT-DGTL I2C 6-ODFN
标准包装: 183
带接近传感器:
波长: 550nm
电源电压: 2.3 V ~ 3.3 V
输出类型: I²C?
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 6-WDFN 裸露焊盘
包装: 散装
ISL29001
k = 7.5. This is a scaling factor for the IR sensitive Diode 2.
Flat Window Lens Design
A window lens will surely limit the viewing angle of the
ISL29001. The window lens should be placed directly on top
of the ISL29001. The thickness of the lens should be kept at
minimum to minimize loss of power due to reflection and
also to minimize loss of loss due to absorption of energy in
the plastic material. A thickness of t = 1mm is recommended
for a window lens design. The bigger the diameter of the
window lens the wider the viewing angle is of the ISL29001.
Table 4 shows the recommended dimensions of the optical
window to ensure both 35° and 45° viewing angle. These
dimensions are based on a window lens thickness of 1.0mm
and a refractive index of 1.59.
WINDOW LENS
t
ISL29001
?
D LENS
D1
D TOTAL
? = Viewing angle
FIGURE 12. FLAT WINDOW LENS
TABLE 4. RECOMMENDED DIMENSIONS FOR A FLAT
WINDOW DESIGN
D LENS @ 35°
D LENS @ 45°
D TOTAL
1.5
2.0
2.5
3.0
3.5
D1
0.50
1.00
1.50
2.00
2.50
VIEWING ANGLE
2.25
3.00
3.75
4.30
5.00
VIEWING ANGLE
3.75
4.75
5.75
6.75
7.75
t=1
D1
D LENS
D TOTAL
Thickness of lens
Distance between ISL29001 and inner edge of lens
Diameter of lens
Distance constraint between the ISL29001 and lens
outer edge
* All dimensions are in mm.
9
FN6166.7
November 17, 2011
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