GP1UM26RK/27RK/28RK/28QK Series

Fig.2 Standard Optical System

φ

φ

Transmitter

Reception distance:L

(

φ indicates horizontal and vertical directions.)

Fig.1 Transmitter

20cm

10k

Ω

+5V

Oscilloscope

Transmitter (GL521 used)

=(*4)

Duty 50%

µ A at E

s Performance

Using the transmitter shown in Fig. 1, the output signal of the light detecting unit is good enough to meet the following items in the

standard optical system in Fig. 2.

1. Linear reception distance characteristics

When L=0.2 to 8.5(7.0)

<10 lx and φ=0˚ in Fig.2, the output signal shall meet the electrical characteristics in the attached

list.

2. Sensitivity angle reception distance characteristics

When L=0.2 to 6.0(4.5)

<10 lx and φ≤30˚ in Fig.2, the output signal shall meet the electrical characteristics in the attached

list.

3. Anti outer peripheral light reception distance characteristics

When L=0.2 to 4.0(3.0)

≤ 300 lx and φ=0˚ in Fig.2, the output signal shall meet the electrical characteristics in the attached

list.

*5 It refers to detector face illuminance

*6 Outer peripheral light source: CIE standard light source A shall be used and placed at 45˚ from perpendicular axis at the detector face center

*7 In case of B.P.F. center frequency: 56.8kHz model