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GP2W0001YP

Low Power Infrared Transceiver

Sharp Electronics 

Low Power Infrared Transceiver

GP2W0001YP/GP2W0002YP

Cabinet and IR Cosmetic

Window Design Tips

Figure 17 with its calculations illustrates the design

tips for a cabinet and an IR cosmetic window with ±18°

viewing angles in the vertical and horizontal axes. All

transceiver dimension values are for reference, and

are in mm.

The optical window size should be the minimum size

of W × H, either rectangular or elliptical, to maintain

IrDA data transfer performance. The dimensions for W

can be calculated by the formula:

W = 2 × L × tan(18 + w)

And the dimensions for H can be calculated by the

formula:

H = 2 × L × tan(18 +h)

In the case where the viewing angle is +18°, which

conforms to or exceeds the IrDA Serial Infrared Physi-

cal Layer Link Specifications. Values to be calculated

with above the formula must be given in mm.

L

w

18˚ (8.475) 18˚

L

W

18˚

h

(3.15)

18˚

NOTE: Dimensions are in mm.

Figure 17. Optical Window Tips

H

GP2W0001YP-35

Technical Information

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