Liquid Crystal Shutter
Chapter 6: Specifications and Graphs
Page 6
CTN002190-D02
Chapter 6
Specifications and Graphs
Item #
LCC1620(/M)
Operating Wavelength Range
420 - 700 nm
Transmission (Avg.)
>60%
Contrast Ratio (CR; Avg.)
1
>8000:1
Laser Damage
Threshold
CW
1 W/cm
2
(532 nm, Ø0.471 mm)
Pulsed
0.4 J/cm
2
(532 nm, 10 ns, 10 Hz, Ø0.750 mm)
Clear Aperture
Ø20 mm
Surface Quality
40-20 Scratch-Dig
Max Incidence Angle
±5°
Switching Speed
(Shutter Mode)
2
Opening (Typ.)
5 ms
Closing (Typ.)
1 ms
Wavefront Distortion
≤λ/4 @ 633 nm
External Input
SMC Connector, 0 - 5 V, 25 kΩ Input Impedance
Power Adapter
12 VDC / 1.25 A with Power Cord
AC Power Requirements
110 - 240 VAC, 47 - 63 Hz, 0.4 A
Mounting
Two 8-32 (M4) Threaded Holes for Post Mounting
30 mm Cage System Compatible
Ø1" Lens Tube Compatible
Operating Temperature
15 °C to 60 °C
Dimension
60 mm x 60 mm x 27 mm
Figure 5
Liquid Crystal Shutter CR and Transmittance
1
The average CR is specified over the operating wavelength range.
2
In shutter mode with a 0 - 5 V TTL input from the EXT port. Opening time is defined as the time taken for the TTL signal to fall to 10% and
the shutter transmission raise to 90% of the total transmitted power, while closing time is defined as the time taken for the TTL signal raise to
90% and shutter transmission fall to 10% of the total transmitted power.
400
450
500
550
600
650
700
750
800
0
10
20
30
40
50
60
70
80
90
100
Transmission
Contrast Ratio
LCC1620(/M) Transmission and Contrast Ratio
Tr
ansm
ission (%
)
Wavelength (nm)
1
10
100
1000
10000
100000
C
ontr
ast R
atio
