Name: Meadowlark Optics LC Variable Retarder, Uncompensated, 1'' Dia 650-950nm
SKU: 72-837
Price: NT$41,825

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Meadowlark Optics LC Variable Retarder, Uncompensated, 1'' Dia 650-950nm

Meadowlark Optics Liquid Crystal Variable Retarders

Stock #72-837 New 5-7 Days

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NT$41,825

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下載產品資料

規格:pdf

EO Spec Sheet

Specifications

概況

Type:

Liquid Crystal Variable Retarder, Uncompensated

Note:

Item supplied with retardance vs voltage performance data. Coaxial cable with mating connector is provided. Controller (#72-848 or #72-849) required for operation.

物理和機械特性

Clear Aperture CA (mm):

9.4

Diameter (mm):

25.40 ±0.13

Thickness (mm):

31.24 ±0.13

光學特性

Coating:

AR-Coat

Optical Quality synthetic fused silica

Reflection (%):

≤ 0.5% per surface at 0°deg AOI

Surface Quality:

40-20

Beam Deviation (arcmin):

≤ 2

Transmitted Wavefront Distortion (RMS):

≤ λ/4 @ 632.8nm

Wavelength Range (nm):

650 - 950

Damage Threshold, Reference: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.

500 W/cm², CW 300 mJ/cm², 10 ns, visible

Retardance Range:

~30nm to λ/2

螺紋和安裝

Mount:

Anodized Aluminium

材料特性

Retarder Material:

Nematic Liquid Crystal

環境和耐用性因素

Operating Temperature (°C):

0 to 50

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

產品概覽

實現偏振的精確電控
提供從紫外到近紅外波長的多種選項
相容Meadowlark Optics 液晶控制器

Meadowlark Optics 液晶可變延遲器透過調節外加電壓引起的有效雙折射變化，實現對偏振的精確電控。可以將輸入的偏振光改變為任意選定的橢圓偏振光、線偏振光或圓偏振光。這些延遲器採用雙折射向列液晶材料建構在塗有透明導電氧化銦錫 (ITO) 的光學平坦熔融石英窗鏡之間，可在指定波長範圍內實現最大穿透率。Meadowlark Optics 液晶可變延遲器非常適用於量測和醫療領域的主動偏振控制，例如應力分析、藥物成分分析以及生物顯微鏡應用。未補償的延遲器在高電壓下會有約 30 nm 的殘餘延遲。

請注意：該可變延遲器應使用無直流成分的交流波形驅動，以防止離子聚集而損壞液晶層。需要使用振幅可調的 2 kHz 方波進行控制。推薦使用 Meadowlark 液晶類比和數位控制器，以確保滿足驅動需求。

Meadowlark Optics Liquid Crystal Variable Retarders enable the precision electrical control of polarization through the variation of effective birefringence with applied voltage, altering the input polarized light to any chosen elliptical, linear, or circular polarization. As voltage is increased, retardance is decreased. For uncompensated retarders, there will be a residual retardance of around 30nm at high voltage.

These retarders are constructed using a birefringent nematic liquid crystal material between optically flat fused silica windows coated with transparent conductive Indium Tin Oxide (ITO) for maximum transmission within a specified wavelength range.

Each Meadowlark Optics Liquid Crystal Variable Retarder is supplied with retardance vs voltage performance data for the specified wavelength range, and a coaxial cable with mating connector is provided for easy attachment to one to Meadowlark Optics Liquid Crystal Controllers.

These variable retarders should be electrically driven with an AC waveform with no DC component to prevent ionic buildup which can damage the liquid crystal layer. For control, a 2 kHz square wave of adjustable amplitude is required.

成像鏡頭選擇器

資源