Industry‐Leading Metrology – Meadowlark is the most experienced
manufacturer of precision liquid crystal devices. Our proprietarymeasurement techniques provide you with extremely accurate calibrationfor every liquid crystal device we ship.

LIQUID CRYSTAL
DEVICESHigh Quality and Precision – When selecting a liquid crystal device, key

SELECTION GUIDE

performance features must be considered. These include wavelength
dependence, temperature sensitivity, laser damage threshold, response timeand aperture size. Our liquid crystal selection chart provides an at‐a‐glancereview of our standard LC devices; as always, Meadowlark Solutions Engineers
are happy to assist you in the process of selecting an LC component orcontroller that works for your application.

Custom Solutions – While we are delighted to provide you with one of ourstandard components or systems, we are also happy to customize a solution
for you. Switching speeds, retardance values, wavelength ranges, coatings,
sizes and shapes can all be modified to your specifications.

About Meadowlark Optics
Did you know?

Innovating since 1979 – Meadowlark Optics has provided world‐classMeadowlark Optics was the first to develop a commercially available
Liquid Crystal Variable Retarder? Our LCVRs are now the fundamental
component used in the following devices and systems:•Rotators•Variable Beamsplitters•Spatial Light Modulators•Non‐Mechanical Shutters•Beam Steerers•Optical Compensators•Polarimeters•Tunable Filters

polarization optics and liquid crystal solutions for a variety of applicationsfor 43 years. To ensure precision and top quality, our 20,000 SF
headquarters and manufacturing facility boasts the latest in clean rooms,
optical fabrication, and metrology equipment. Need help selecting the rightproduct for your application? Contact one of our Solutions Engineers todiscuss your requirements.

5964 Iris
Iris Parkway,
Parkway, Frederick,Frederick, CO
CO 80504
80530
5964
sales@meadowlark.com
303‐833‐4333
sales@meadowlark.com –– www.meadowlark.com
www.meadowlark.com –‐ 303‐833‐4333
SG08.22

Celebrating 40 YEARS of Photonics Innovation

POLARIZERS • SPATIAL LIGHT MODULATORS • WAVEPLATES • LIQUID CRYSTAL DEVICES • OTHER CAPABILITIESWhy Choose Meadowlark
Liquid Crystal Devices?

LIQUID CRYSTAL COMPONENTVariable RetardersRotators

WAVELENGTH

TWD*SWITCHING SPEEDP‐V(typical)

CONTRASTRATIOBEAM
DEVIATION• Custom retardances• Temperature control options• Available compensated• Precision non‐mechanical retardation control

450 – 1800 nm• Precision control at lower cost
• Scalable quantities (Quantities of 20 – 100s)• Thin housing• Large clear aperture

450 – 1800 nm

UV LC Variable Retarder• Phase or amplitude modulation of UV spectrum• Analog modulation• Non‐mechanical polarization control

350 – 450 nm≤ λ/4~ 4 ms

N/A

≤ 2 arc min

LC Polarization Rotator• High polarization purity• 180 degree polarization rotation• Continuous rotation of linearly polarized light

450 – 1800 nm≤ λ/4

10 – 30 ms

150:1
average≤ 2 arc min• Sub‐millisecond switching speeds• Broadband performance• Silent, vibration‐free• Binary switching

405 – 850 nm≤ λ/2< 100 µs

N/A

≤ 5 arc min• High polarization purity• Silent, vibration‐free, low voltage operation• Broad thermal range• Faster switching speeds than LCVRs

400 – 1800 nm≤ λ/4

5 – 15 ms

500:1≤ 2 arc min• Sub‐millisecond switching speeds• Stand alone controller available• Silent, vibration‐free• OEM sizes and shapes

400 – 750 nm• Sub‐millisecond switching• Does not require 50/50 duty cycle drive scheme• Ships complete with controller & software• No mechanical motion

450 – 700 nm≤ λ/4~1 ms

N/A≤ 2 arc min

450 – 1800 nm≤ λ/2

5 – 15 ms

1,000:1≤ 5 arc min

450 – 1800 nm≤ λ/4

5 – 15 ms

500:1≤ 2 arc min

LC Variable Retarder

OEM LC VariableRetarder

Achromatic High Speed
LC Rotator

Binary LC Rotator(twisted nematic)High Speed LC Shutter(ferroelectric)

Shutters / Variable Attenuators

FEATURESHigh Speed Liquid
Crystal VariableRetarderHigh Contrast
Optical Shutter(twisted nematic)

LC Variable Attenuator(twisted nematic)• High contrast• No mechanical motion• No vibration• High contrast• Computer control capabilities• Continuous control of light intensity*Switching speeds vary by wavelength and temperature. Speeds shown are approximate.

≤ λ/4

≤ λ/2

10 – 30 ms

10 – 30 ms

N/AN/A≤ 2 arc min

TemperatureController< 100 µs

N/AUSB0No• Stand alone• Low Cost
• Battery backup• 20V max output• Banana jacksSELECTIONfor easy voltage monitoring
GUIDE• SMA to BNC adapter included

1No• Waveforms generated within controller itself• Autonomous mode
• 10V max output (20V option available)• External modulation / trigger I/O• 2 channel voltage and temperature control

2Yes• Waveforms generated within controller itself• I/O connectors for external synchronization• 20V max output• Designed to be paired with HS LCVR
• 2 channel voltage and temperature control

2Yes• Automatically DC balances• External modulation• 10V output• Gate input• Drive I/O• Frequency range 1 Hz – 10 kHz

2NoFEATURES• Stand alone*• LED display• 1 channel temperature control*Temperature control option on liquid crystal device required.

≤ 3 arc min
Analog LCController

≤ λ/2

# LC
CHANNELSCONTROLLER

Liquid Crystal
Digital Interface

High Speed LCVR
Digital Interface≤ 5 arc min
Ferroelectric LCController

Two and three year extended warranty options available.
Please contact your Meadowlark Optics Solutions Engineer – sales@meadowlark.com or +1.303.433.8333

5964 Iris Parkway, Frederick, CO 80530
sales@meadowlark.com – www.meadowlark.com – 303‐833‐4333

www.phototechnica.co.jp
SG08.22〒336-0017 埼玉県さいたま市南区南浦和 1-2-17

TEL:048-871-0067

FAX:048-871-0068 Celebrating 40 YEARS of Photonics Innovatione-mail:voc@phototechnica.co.jp