OVERVIEW
The UNIBLITZ®LS series shutters are especially well suited for laser use, withapplications including low level chopping, pulse gating, selection, andmodulation to 400Hz. Precision exposure control in the areas ofholography and photography are additional application that benefit fromthe precise, repeatable characteristics of the LS shutter series.
For information on typical laser damage thresholds see "OPTICAL" information in our "COMPARISON SPECIFICATION" sheet. For further information see our application note "LASER APPLICATION REFERENCE" sheet in the resource section of our web site, www.uniblitz.com.
The LS shutter series is comprised of three models. The modelLS2 features a 2mm aperture, with typical rise time of 300µsec. The LS3and LS6 models feature a 3mm and 6mm aperture, respectively. All threestyles are offered mounted in a black anodized aluminum housing, andare equipped with the electronic synchronization system. In addition tothe standard housing illustrated on the opposite side, severalcustomized microscope and video mounts are available as options for usewith this series. Additional information can be found in the sheetentitled "MOUNTING SYSTEMS."
FEATURES
- Three aperture sizes available.
- 2mm diameter - Model LS2
- 3mm diameter - Model LS3
- 6mm diameter - Model LS6
- Laser energy ratings up to 5W/mm2 with "Z" or "ZM" shutter blade coating options.
- Exposure repetition rates from DC - 400Hz.
- Electronic synchronization system included.
Electrical
| SERIES |
COIL RESISTANCE |
PULSE VOLTAGE TO OPEN |
HOLD VOLTAGE1 (NOMINAL) |
| LS2 |
48 OHMS |
+65 VDC |
+10 VDC |
| LS3 |
48 OHMS |
+65 VDC |
+10 VDC |
| LS6 |
48 OHMS |
+65 VDC |
+10 VDC |
1 Voltage level required across actuator coil when being held in the open position.
Mechanical
| SERIES |
WEIGHT UNCASED |
WEIGHT CASED |
OPERATING TEMP.
DEGREES |
MAX. OPENING BOUNCE |
MAX. CLOSING BOUNCE |
MAX. FREQUENCY OF OPERATION 1 (CONT/BURST) |
NUMBER SHUTTER BLADES |
| LS2 |
N/A |
7.41 oz. (.21 Kg) |
0-80 o C |
15% |
5% |
100 Hz / 400 Hz |
1 |
| LS3 |
N/A |
7.41 oz. (.21 Kg) |
0-80 o C |
15% |
5% |
50 Hz / 200 Hz |
2 |
| LS6 |
N/A |
7.41 oz. (.21 Kg) |
0-80 o C |
15% |
5% |
20 Hz / 150 Hz |
2 |
1 CONTinuous frequency rating specified at shutter’s minimum exposure pulse. BURST frequency rating specified for (4) four seconds maximum with (1) one minute minimum between bursts. Frequency measurements are taken in free air, 25°C ambient, actuator coil equipped with heat sink. For additional information on maximum sustained frequencies obtainable, please contact one of our technical representatives.
Timing
The following chart lists typical timing values (msec.) using UNIBLITZ® drive equipment and measured with UNIBLITZ® shutters equipped with standard black Teflon® coated shutter blades.
| |
LS2 |
LS3 |
LS6 |
| 0-A: |
Delay time on opening after current is applied |
0.7 |
1.0 |
1.0 |
| A-C: |
Transfer time on opening |
0.3 |
0.5 |
0.7 |
| O-C: |
Total opening time |
1.0 |
1.5 |
1.7 |
| C-E: |
Min. dwell time with min. input pulse |
0.7 |
0.8 |
0.8 |
| B-F: |
Min. equivalent exp. time |
1.1 |
1.5 |
1.5 |
| E-G: |
Transfer time on closing |
0.5 |
0.6 |
0.8 |
| A-G: |
Total window time |
1.5 |
1.9 |
2.3 |
| MET: |
Min. exposure time |
1.0 |
2.0 |
2.0 |
| TEP: |
Typical exposure pulse |
>1.7 |
>2.3 |
>2.5 |
Thequestion regarding enhancement of shutter speed with the application ofuser supplied lubricants has been repeatedly asked. It is ourexperience that lubricating the shutter blades will actually slow theshutter down and eventually render the shutter inoperable. UNDER NOCIRCUMSTANCES SHOULD ANY TYPE OF LUBRICANT BE APPLIED TO THE SHUTTERBLADE AREA.
Housed Style
The LS #2case style allows a number of mounting configurations. A ¼-20threaded hole is provided for post mounting. The 1.625 in x 40TPIexternal thread, rear side, and the six 2-56 threaded holes, frontside, can be interfaced directly into your application or fitted with avariety of specific mounting options. See "MICROSCOPE & VIDEOMOUNTING SYSTEMS" data sheet for additional information. The unitterminates with a 7-pin male connector.
Housing/Connector Layout
This drawing illustrates 7-pin connector and 1/4-20 threaded hole layout for the LS2/3/6 series #2 case style.
| Part Number Example: |
|
| LS2 T 2 -100 |
|
| Aperture Size |
Blade Finish |
Housing |
Mounting Options |
LS2 - 2mm
LS3 - 3mm
LS6 - 6mm |
T - Teflon® Coated S.S. Blades
ZM - AlMgF2 Coated BeCu Blades*
Z - AlSiO Coated BeCu Blades* |
2 - #2 Housing (Electronic Synchonization is Included. |
-21 Zeiss Axiovert Type
-22 Nikon SBX type
-23 Olympus BH/IMT type
-24 Olympus BX/IX type
-26 Leica Type
-27 Nikon Type
-28 Olympus IX Transmitted Type
-29 Nikon TE Type
-30 Leica DM/DMIR/DMIRB Type
-31 Nikon Confocal Type
-32 Nikon 80i Type
-100 Mounting Ring
-105 C-Mount Adapter (Male)
-106 C-Mount Adapter (Female)
-110 T-Mount Adapter |
|
*Input side only, Teflon® coating is on opposite side. Intended to protect the shutter blade surface, light source must be input to the reflective side only.