ISL29004IROZ Intersil, ISL29004IROZ Datasheet - Page 12

• Manufacturer Part Number: ISL29004IROZ
• Description: IC SENSOR LIGHT-DGTL I2C 8-ODFN
• Manufacturer: Intersil
• Series: -r

Specifications of ISL29004IROZ

• Wavelength: 550nm
• Output Type: I²C™
• Package / Case: 8-WFDFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

dimensions are based on a window lens thickness of 1.0mm
and a refractive index of 1.59.
WINDOW LENS
ISL29003/4
ISL29003/ISL29004
t
L
FIGURE 4. FLAT WINDOW LENS
D
D
2
LENS
12
> 1.5mm
D
LENS
∅
∅ = VIEWING ANGLE
FIGURE 5. WINDOW WITH LIGHT GUIDE/PIPE
D1
t
LIGHT PIPE
D
TOTAL
ISL29004
Window with Light Guide Design
If a smaller window is desired while maintaining a wide
effective viewing angle of the ISL29004, a cylindrical piece of
transparent plastic is needed to trap the light and then focus
and guide the light on to the device. Hence the name light
guide or also known as light pipe. The pipe should be placed
directly on top of the device with a distance of D1 = 0.5mm to
achieve peak performance. The light pipe should have
minimum of 1.5mm in diameter to ensure that whole area of
the sensor will be exposed. See Figure 5.
t = 1
D1
D
D
* All dimensions are in mm.
TABLE 16. RECOMMENDED DIMENSIONS FOR A FLAT
D
LENS
TOTAL
TOTAL
1.5
2.0
2.5
3.0
3.5
Thickness of lens
Distance between ISL29001 and inner edge of lens
Diameter of lens
Distance constraint between the ISL29001 and lens
outer edge
WINDOW DESIGN
0.50
1.00
1.50
2.00
2.50
D1
VIEWING ANGLE
D
LENS
2.25
3.00
3.75
4.30
5.00
@ 35
D
2
VIEWING ANGLE
D
LENS
December 21, 2006
3.75
4.75
5.75
6.75
7.75
D
LENS
@ 45
FN6221.0