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TECHSPEC^®組件由愛特蒙特光學設計、指定或製造。進一步瞭解

50.8mm Dia., 4mm Thick, NIR II Coated λ/4 N-BK7 Window

Name: 50.8mm Dia., 4mm Thick, NIR II Coated λ/4 N-BK7 Window
Brand: TECHSPEC
SKU: 25-828
Price: NT$4,515

Stock #25-828 聯絡我們

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EO Spec Sheet

Specifications
產品概覽
Technical Information
Accessories
相關產品
成像鏡頭選擇器
Frequently Purchased Together
資源

Specifications

General

Type:

Protective Window

Physical & Mechanical Properties

Bevel:

Protective as needed

Clear Aperture (%):

Clear Aperture CA (mm):

45.72

Diameter (mm):

50.80 +0.00/-0.25

Thickness (mm):

4.00 ±0.20

Edges:

Fine Ground

Knoop Hardness (kg/mm²):

610

Parallelism (arcmin):

Poisson's Ratio:

0.206

Young's Modulus (GPa):

Optical Properties

Abbe Number (v_d):

64.17

Coating:

NIR II (750-1550nm)

Coating Specification:

R_abs ≤1.5% @ 750 - 800nm
R_abs ≤1.0% @ 800 - 1550nm
R_avg ≤0.7% @ 750 - 1550nm

Index of Refraction (n_d):

1.516

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

N-BK7

Surface Flatness (P-V):

λ/4

Surface Quality:

60-40

Wavelength Range (nm):

750 - 1550

8 J/cm² @ 1064nm, 10ns

Material Properties

Coefficient of Thermal Expansion CTE (10^-6/°C):

7.1 (-30 to +70 °C)
8.3 (+20 to +300 °C)

Density (g/cm³):

2.51

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

Reach 235:

Compliant

產品概覽

提供2mm 到 200mm尺寸的圓形和方形版本選項
7 種寬頻抗反射鍍膜選項
業內最齊全標準N-Bk7 窗鏡選項
另有超薄 N-BK7 窗鏡可供選擇

TECHSPEC^® λ/4 N-BK7 精密窗口片非常適用於工業與低功率雷射應用。藉由精密公差設計，可以最大程度減少光束畸變與散射。廣波段鍍膜選項可延伸這些精密窗口片在可見光與近紅外光譜內的有效工作範圍。TECHSPEC^® λ/4 N-BK7 精密窗口片提供2mm 到 200mm尺寸的圓形和方形版本選項。

注意：此產品系列的新增產品可能會指定透射波前畸變 (TWD) 規格，而不是表面平整度。有關這兩種規格之間差異的更多信息，請參閱我們的應用說明“了解光學窗口片”。

Technical Information

N-BK7
	Typical transmission of a 3mm thick, uncoated N-BK7 window across the UV - NIR spectra. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with MgF2 (400-700nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_avg ≤ 1.75% @ 400 - 700nm (N-BK7) Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with VIS-EXT (350-700nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_avg≤ 0.5% @ 350 - 700nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with VIS-NIR (400-1000nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_abs≤ 0.25% @ 880nm R_avg≤ 1.25% @ 400 - 870nm R_avg≤ 1.25% @ 890 - 1000nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with VIS 0° (425-675nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_avg≤ 0.4% @ 425 - 675nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with YAG-BBAR (500-1100nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_abs ≤ 0.25% @ 532nm R_abs ≤ 0.25% @ 1064nm R_avg≤ 1.0% @ 500 - 1100nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with NIR I (600 - 1050nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_avg≤ 0.5% @ 600 - 1050nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data
	Typical transmission of a 3mm thick N-BK7 window with NIR II (750 - 1550nm) coating at 0° AOI. The blue shaded region indicates the coating design wavelengh range, with the following specification: R_abs ≤ 1.5% @ 750 - 800nm R_abs ≤ 1.0% @ 800 - 1550nm R_avg≤ 0.7% @ 750 - 1550nm Data outside this range is not guaranteed and is for reference only. Click Here to Download Data

Accessories

成像鏡頭選擇器

Frequently Purchased Together

#64-588 - 25.4mm Dia. f/4 NIR Coated, Molded Acrylic Aspheric Lens

NT$2,363

#19-829 - 50.8mm Diameter, Optical Cast Plastic Window

NT$980

資源

Filter

抗反射 (AR) 鍍膜

抗反射 (AR) 鍍膜應用於光學元件，以提高吞吐量並減少背反射造成的傷害。

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光學鍍膜簡介

您是否正在尋找有關光學鍍膜的更多資訊？在愛特蒙特光學了解更多有關光學系統中使用的鍍膜的常見、定制和優點的資訊。

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Beam Displacement Calculator

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Understanding Optical Windows

Determine how to select an optical window based on its material transmission, thermal and mechanical properties, and other specifications at Edmund Optics.

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Optical Windows Review

Optical Windows provide protection between an optical system or sensitive electronics and an outside environment.

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I need a window for imaging underwater. The water is filtered and at room temperature with a very small amount of detergent in it. It is flowing at low speed. Will a MgF2 coated window survive this for a few years?

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光學玻璃

Choosing the right optical glass is important. Find out factors and properties on how to select the right optical glass at Edmund Optics.

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Surface Accuracy

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BBAR Coating

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了解表面品質規格

光學元件的表面品質取決於其表面的散射，這在雷射光學應用中尤其重要。

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Removing Protective Plastic Coating

A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

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Anti-Reflection (AR) Coating

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Bevel

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Parallelism

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Seamed Edge

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Introduction to Basic Ray Optics

An understanding of refraction and basic ray optics is a critical foundation for understanding more complicated optical concepts and technologies.

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Surface Flatness

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Transmission

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How do I clean my optics?

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Clear Aperture (CA)

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愛特蒙特光學遍佈全球的製造工廠

愛特蒙特光學® (EO) 在全球的五座製造工廠，每年製造數百萬件精密光學元件和子配件。

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愛特蒙特光學的度量技術：將測量作為製造的關鍵要素

進一步瞭解愛特蒙特光學® 使用的度量技術，協助保證所有光學元件及組件的優異品質。

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Surface Quality

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50.8mm Dia., 4mm Thick, NIR II Coated λ/4 N-BK7 Window

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Specifications

General

Physical & Mechanical Properties

Optical Properties

Material Properties

Regulatory Compliance

產品概覽

Technical Information

Accessories

相關產品

成像鏡頭選擇器

Frequently Purchased Together

資源

抗反射 (AR) 鍍膜

光學鍍膜簡介

Beam Displacement Calculator

Understanding Optical Windows

Optical Windows Review

I need a window for imaging underwater. The water is filtered and at room temperature with a very small amount of detergent in it. It is flowing at low speed. Will a MgF2 coated window survive this for a few years?

光學玻璃

Surface Accuracy

BBAR Coating

了解表面品質規格

Removing Protective Plastic Coating

Anti-Reflection (AR) Coating

Bevel

Parallelism

Seamed Edge

Introduction to Basic Ray Optics

Surface Flatness

Transmission

How do I clean my optics?

Clear Aperture (CA)

愛特蒙特光學遍佈全球的製造工廠

愛特蒙特光學的度量技術：將測量作為製造的關鍵要素

Surface Quality