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Summary of Contents for THORLABS LCC1620
- Page 1 LCC1620(/M) Liquid Crystal Shutter User Guide...
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Page 2: Table Of Contents
4.4. Beam Centering ....................... 4 Chapter 5 Operation .......................... 5 Chapter 6 Specifications and Graphs .................... 6 Chapter 7 Mechanical Drawing ......................10 Chapter 8 Maintenance ........................11 8.1. Troubleshooting ......................11 Chapter 9 CE Certification ........................12 Chapter 10 Regulatory ...........................13 Chapter 11 Thorlabs Worldwide Contacts ..................14 ... -
Page 3: Chapter 1 Warning Symbol Definitions
Liquid Crystal Shutter Chapter 1: Warning Symbol Definitions Chapter 1 Warning Symbol Definitions Below is a list of warning symbols you may encounter in this manual or on your device. Symbol Description Direct Current Alternating Current Both Direct and Alternating Current Earth Ground Terminal Protective Conductor Terminal Frame or Chassis Terminal... -
Page 4: Chapter 2 Safety
Liquid Crystal Shutter Chapter 2: Safety Chapter 2 Safety Do Not Open Housing! The Liquid Crystal Shutter has no user-serviceable parts. Service should only be performed by trained service personnel. All statements regarding safety of operation and technical data in this instruction manual will only apply when the unit is operated correctly. -
Page 5: Chapter 3 Product Overview
Chapter 3 Product Overview Thorlabs’ Liquid Crystal Shutters are precision, high speed shutters that are ideal as a laser switch. They consist of a Liquid Crystal (LC) cell, an electronic controller unit, and a mechanical housing, shown below in Figure 1. -
Page 6: Chapter 4 Setup
90°, so that light with a vertical or horizontal polarization axis can be aligned with the shutter. Additionally, the liquid crystal shutters are designed to be compatible with Thorlabs 30 mm cage systems. The four 4-40 holes on the front of the shutter can also be used to mount the shutter in either a horizontal or vertical orientation using the Thorlabs Cage System. -
Page 7: Chapter 5 Operation
The LCC1620 (/M) is also designed to be controlled by an external signal. The external signal is a 0 – 5 V DC signal input into the “EXT. INPUT” SMC connector. To use an external input in “SHUTTER” mode, the potentiometer must be in the turned fully clockwise. -
Page 8: Chapter 6 Specifications And Graphs
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 LCC1620(/M) Transmission and Contrast Ratio 100000 10000 1000 Transmission Contrast Ratio Wavelength (nm) Figure 5 Liquid Crystal Shutter CR and Transmittance The average CR is specified over the operating wavelength range. - Page 9 Liquid Crystal Shutter Chapter 6: Specifications and Graphs LCC1620(/M) Attenuation 0.5 V 1.5 V 2.5 V 350 400 450 500 550 600 650 700 750 800 Wavelength (nm) Figure 6 Typical Shutter Transmission at Various Voltages LCC1620(/M) Transmission 500 nm...
- Page 10 Liquid Crystal Shutter Chapter 6: Specifications and Graphs Figure 8 Normalized Contrast Ratio vs. Frequency Figure 9 Switching Time Stability CTN002190-D02 Page 8...
- Page 11 Liquid Crystal Shutter Chapter 6: Specifications and Graphs Shutter Timing Specifications Time (Typ.) Diagram Description 25 °C 40 °C 60 °C Delay between the input pulse's rising edge at 90% and A→B 0.065 ms 0.061 ms 0.052 ms the initialization of shutter down to 90% B→C Falling edge from 90% to 10% 0.346 ms...
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Page 12: Chapter 7 Mechanical Drawing
Liquid Crystal Shutter Chapter 7: Mechanical Drawing Chapter 7 Mechanical Drawing All shutter models have an identical housings and physical dimensions. The LCC1620/M has M4 tapped holes instead of 8-32 tapped holes. 4-40 Tapped Holes for 30 mm Cage System (4 Places) Internal SM1 (1.035''-40) -
Page 13: Chapter 8 Maintenance
There are no serviceable parts in the shutter and the unit should not be opened by the user. If you suspect a problem with your shutter, please call Thorlabs and a member of our Technical Support team will be happy to assist you. -
Page 14: Chapter 9 Ce Certification
Liquid Crystal Shutter Chapter 9: CE Certification Chapter 9 CE Certification CTN002190-D02 Page 12... -
Page 15: Chapter 10 Regulatory
Waste Treatment is Your Own Responsibility If you do not return an “end of life” unit to Thorlabs, you must hand it to a company specialized in waste recovery. Do not dispose of the unit in a litter bin or at a public waste disposal site. -
Page 16: Chapter 11 Thorlabs Worldwide Contacts
Liquid Crystal Shutter Chapter 11: Thorlabs Worldwide Contacts Chapter 11 Thorlabs Worldwide Contacts For technical support or sales inquiries, please visit us at www.thorlabs.com/contact for our most up-to- date contact information. USA, Canada, and South America UK and Ireland Thorlabs, Inc. - Page 17 www.thorlabs.com...
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