萝莉影视

Optical DeviceWaveplate

Quartz crystal waveplates are optical elements which use the birefringence of quartz crystal to generate a retardation between ordinary and extraordinary rays. They are used in pickups for DVDs and similar, liquid crystal projectors, and more.

Specifications

λ/2 waveplate λ/4 waveplate
Single plate Double plate Single plate Double plate
Retardation 180°±5°(at the design wavelength) 90°±5°(at the design wavelength)
Quartz crystal plate orientation Y-cut or X-cut Y-cut or X-cut
Wavelength*1 193 to 930nm 193 to 930nm
External dimensions φ10 to φ50mm, 5 to 50mm square φ10 to φ50mm, 5 to 50mm square
Thickness 0.1 to 2.0mm 0.22 to 2.0mm 0.1 to 2.0mm 0.22 to 2.0mm
Wavefront aberration
(measured wavelength = 632.8 nm)
≦1/4λ(P-V) ≦2λ(P-V) ≦1/4λ(P-V) ≦2λ(P-V)
Transmittance ≧99% (at the design wavelength) ≧98% (at the design wavelength)
Coating AR coat AR coat

*1: We will consult with you separately about the coating conditions.

Strengths

  • In-house production of quartz crystals
  • Highly-durable quartz crystal materials
  • Compatible with irregular shapes
  • Compatible with narrow phase tolerances

Application examples

  • Semiconductors
  • Liquid crystal exposure devices
  • Laser processing devices
  • Interferometers

Etc.

Series Lineup

Multilayer type

This is a low-cost product with a small number of components.

Low order single plate Normal compatibility
Wavelength(nm) 632.8/650/780
Phase difference 1/2?1/4multi
Thickness(mm) 0.8 to 10
Dimensions Min. 10mm square/φ14
Dimensions Max. 25mm square/φ30
Wavefront aberration On discussion

*Please contact us via the Contact Form or the nearest sales office for specifications other than the above.

Double Layer type

There is almost no change in the retardation due to the incident angle variation.

0-order double plate Normal compatibility
Wavelength(nm) 632.8/650/780
Phase difference 1/2?1/4multi
Thickness(mm) 0.4 to 10
Dimensions Min. 10mm square/φ14
Dimensions Max. 25mm square/φ30
Wavefront aberration On discussion

*Please contact us via the Contact Form or the nearest sales office for specifications other than the above.

PDF Catalog

萝莉影视Lineup

This is our lineup of Quartz Crystal Wave Plate.