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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® 부품은 에드몬드 옵틱스가 설계, 사양 지정 및 제조하는 제품입니다. 더 알아보기

25mm Dia x 40mm FL 3-5μm Coated, Ge Aspheric Lens

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재고 #68-248 3~5일내 배송
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기타 코팅 옵션
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KRW 1,377,500
수량 1-5
KRW 1,377,500
수량 6+
KRW 1,102,000
가격(부가세 별도)
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제품 정보 다운로드
Diameter (mm):
25.00 +0.0/-0.1
Effective Focal Length EFL (mm):
40.00 @ 4000nm
Numerical Aperture NA:
0.31
Back Focal Length BFL (mm):
37.89
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Germanium (Ge)
Aspheric Design Wavelength (nm):
4000
Asphere Figure Error, RMS @ 632.8nm:
λ/6
Coating:
BBAR (3000-5000nm)
Coating Specification:
Ravg <3.0% @ 3 - 5μm
Centering (arcmin):
≤5
Surface Quality:
60-40
Clear Aperture CA (mm):
22.5
Edge Thickness ET (mm):
2.38
Center Thickness CT (mm):
3.10 ±0.10
f/#:
1.61
Bevel:
Protective bevel as needed
Edges:
Diamond Turned
Radius R2 (mm):
65.6
Shape of Back Surface:
Concave
Type:
Aspheric Lens
Wavelength Range (nm):
3000 - 5000
Conjugate Distance:
Infinite

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
REACH 241:

제품군의 상세 설명

  • 회절 한계 성능
  • 다양한 코팅 옵션
  • Prescription 데이터 전체 이용 가능
  • 저마늄 수급에 차질이 생겨 저마늄 제품의 경우 납기가 지연되거나 가격이 변동될 수 있으니 자세한 내용은 고객 서비스 팀에 문의하시기 바랍니다

TECHSPEC® Germanium Infrared (IR) Aspheric Lenses는 중파 및 장파 적외선 범위 전체에서 회절 한계 포커싱 성능을 제공합니다. Quantum cascade laser와 같은 단색 광원에 적합한 이 렌즈는 standard plano-convex lens를 대체할 수 있는 고성능 제품입니다.

각각의 aspheric lens는 비코팅 상태로 공급되거나 BBAR 코팅 옵션을 적용할 수 있습니다. 비코팅 게르마늄은 투과율이 50% 미만이기 때문에 코팅 처리를 하지 않은 렌즈의 경우 맞춤형 무반사(AR) 코팅을 고려할 수 있습니다. BBAR 코팅 처리된 렌즈는 투과율이 95%가 넘기 때문에 다양한 OEM 용도에 결합해서 사용하기 적합합니다. 맞춤 주문 설계 및 코팅 옵션은 당사 영업부로 문의 바랍니다.

기술 정보

AR COATED GERMANIUM

Typical transmission of a 3mm thick Ge window with BBAR (3000-5000nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg <3% @ 3000 - 5000nm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick Ge window with BBAR (3000-12000nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg <5.0% @ 3 - 12μm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick Ge window with BBAR (8000-12000nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg <3.0% @ 8 - 12μm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Filter

무반사(AR) 코팅

Anti-reflection (AR) coatings are applied to optical components to increase throughput and reduce hazards caused by back-reflections.

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광학 코팅 개론

Optical coatings are used to influence the transmission, reflection, or polarization properties of an optical component.

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렌즈의 기하학적 형태별 성능 비교

This comparison of the performance of aspheric, achromatic, and spherical PCX lenses in different situations reveals the ideal use cases for each type of lens.

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Aspheric Lenses의 모든 것

Learn all about the benefits of aspheres, their unique anatomy, how they're manufactured, and how to choose the right one for your system.

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Advantages of using engineered chalcogenide glass for color corrected, passively athermalized LWIR imaging systems

Infrared Light

Optical Engineer Andrew Fisher explains how you can see the "invisible" light, or infrared light, from your own TV remote.

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Short Wave Infrared (SWIR, 근적외선)

적외선 용도에서 메니스커스 렌즈 사용시의 이점

Meniscus lenses offer superior performance compared to plano convex lenses in IR applications. Find out the benefits of using a meniscus lens at Edmund Optics.

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적외선(IR) 어플리케이션을 위한 올바른 소재

Using an Infrared Application? Discover the importance of choosing the right material and comparisons of each at Edmund Optics.

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Is it okay to clean an infrared lens, for example one made of germanium, with ethanol?

Infrared (IR) Spectrum

Mid-spatial frequency errors of mass-produced aspheres

Computer Generated Hologram Metrology

Computer Generated Hologram metrology provides a new solution for overcoming traditional asphere metrology. Learn more about CGH metrology at Edmund Optics.

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Aspheric Lens Takeover

Time to Replace Spherical Elements with Aspheric Lenses

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UV vs. IR Grade Fused Silica

UV grade fused silica is ideal for UV and visible applications, but IR grade fused silica has better transmission in the IR due to a lack of OH- impurities.

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SWIR 이란?

Have a question about short-wave infrared (SWIR)? Find definitions, application uses, and examples at Edmund Optics.

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Hyperspectral and Multispectral Imaging

Are you trying to gauge depth of field in your imaging system? Take a closer look at this article on depth of field calculations at Edmund Optics.

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초분광 & 다중분광 이미징 – 트렌드 in 광학: 에피소드 7

Hyperspectral and multispectral imaging are imaging technologies that capture information from a broader portion of the electromagnetic spectrum.

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Shape Factor Influence in Aspheric Lens Design

Learn how the shape factor of an aspheric lens effects its performance and when certain shape factors are the most advantageous.

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ISO Drawings for Aspheric Lenses

Aspheric lens drawings following the ISO 10110 standard are critical tools for communicating manufacturing and testing requirements for the lenses.

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비구면 렌즈의 불균일성과 스트렐 비율

The Strehl ratio of an optical system is a comparison of its real performance with its diffraction-limited performance.

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You offer many substrates for UV and IR applications. How do I know which is best for me?

Aspheric Lenses 리뷰

What is an aspheric lens? In what applications are aspheric lenses used?

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비구면 렌즈 제작 방식

Edmund Optics® manufactures thousands of precision aspheric lenses per month in our asphere manufacturing cell that operates 24 hours a day.

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Designing Large Diameter Aspheres

Managing Holography Errors in Asphere Metrology

Properly Designing and Specifying Aspheric Lenses

Spatial Frequencies and Aspheric Lens Performance

Understanding Aspheric Lenses

Aspheres: The impact of shape factor on asphere design

Aspheres: Still Adding Value

The Long and the Short of It: Techniques for Measuring Aspheres

Does Edmund Optics® sell Computer Generated Holograms?

Is there a limit to the range of angles in which a CGH can be used?

Should the aspheric surface of an asphere always face the object / light source?

How do I know if angle of incidence (AOI) and deposition effects during coating will be an issue for me when looking at off-the-shelf aspheres?

Are all aspheric lenses from Edmund Optics® polished using magnetorheological finishing (MRF)?

No, advances in subaperture polishing have allowed for the fabrication of aspheres with surface figure error down to λ/20 (0.25µm). However, MRF is still...

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What are the challenges associated with increasing the diameter of optics like aspheric lenses?

The CNC polishing equipment used to fabricate the optics must have a large enough range of motion to properly polish the full asphere, and the weight of the...

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What are aspheric condenser lenses?

Why plastic aspheric lenses?

What exact kind of metrology does Edmund Optics use to support its asphere manufacturing?

Does Edmund Optics still use magnetorheological finishing for high quality aspheres?

What are the different types of aspheric lenses?

Plastic Molded Aspheric Lenses

Lightweight, cost-effective aspheric lenses with a lower scratch resistance and thermal stability than molded glass aspheres.

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Precision Glass Molded Aspheric Lenses

Meta description: Ideal for volume applications, including laser diode collimation, bar code scanners, and optical data storage. Can be molded into diameters as small as 1mm.

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Spherical Aberration

Aspheric Lens(비구면 렌즈)

CNC Polished Aspheric Lenses

CNC polished aspheric lenses offer high numerical apertures while creating diffraction-limited spot sizes and are ideal for high-precision applications.

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Mid-Spatial Frequency (MSF) Errors

Deviations in surface form relative to an ideal shape at higher spatial frequencies than Zernike polynomial aberrations but lower frequencies than roughness.

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시네마 렌즈, 스트리밍의 시대, 그리고 비구면 렌즈

Cinema lenses designed to create content tailored for online streaming utilize aspheres to shoot with a shallow depth of field while maintaining quality.

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Aspherized Achromatic Lenses 리뷰

Aspherized Achromatic Lenses, exclusive to Edmund Optics, are doublet lenses consisting of two cemented optical elements that are matched for their color-correction ability and small RMS spot size.

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Modifying Stock Optics Tip #3: Turn A Sphere Into An Asphere

Join Andrew Fisher, Manufacturing R&D Engineer at Edmund Optics, as he discusses some tips for modifying stock optical components to fit your application's needs.

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What are the benefits of aspheric lenses compared to standard singlet lenses?

Is CGH metrology used for measuring any other products besides aspheric lenses?

What are the accuracy limitations of a CGH?

Hybrid Molding

Aspherized Achromatic Lenses

Want an inside look at Aspherized Achromatic Lenses? Learn about the advantages, composition, and aspherized process at Edmund Optics.

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Resolution 및 Contrast의 한계: The Airy Disk

The diffraction pattern caused when light passes through an aperture is called the Airy Disk. Find out how the Airy Disk can impact your image at Edmund Optics.

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What is the difference between an inked lens and a non-inked one?

If I want to design with your lenses and lens assemblies, how do I get the information that I need?

Now that I have chosen my lens, how do I mount it?

Power

Singlet Lens

Strehl Ratio

Chromatic Focal Shift

Conjugate Distance

Edge Thickness (ET)

Effective Focal Length (EFL)

Finite/Finite Conjugate

Optical Lens 설정의 배율 확인 방법

When doing basic imaging, how do you determine the magnification an optical lens will provide?

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Optical Lens의 Focal Length를 파악하기 위한 Collimation 이해

Collimated light occurs when light rays travel parallel to each other.

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Optical Lens 설정을 통한 이미지 형성 방법

Although a common misconception, individual optical lenses do not always form an image when the object plane is placed a focal length away from the lens.

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Modifying Stock Optics Tip #4: Add A Coating To A Stock Lens

Join Andrew Fisher, Manufacturing R&D Engineer at Edmund Optics, as he discusses some tips for modifying stock optical components to fit your application's needs.

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Radius of Curvature

Diffraction Limit (회절 제한)

Irregularity

BBAR Coating

Diopter

Seamed Edge

Anti-Reflection (AR) Coating

Bevel

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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Meet Jeremy Govier: Asphere Guru

The Future Depends on Optics®

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Surface Flatness

Transmission

EO의 글로벌 제조 설비

Edmund Optics® (EO) manufactures millions of precision optical components and subassemblies every year in our 5 global manufacturing facilities.

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에드몬드 옵틱스의 계측 기술: 핵심 부품 제조 시 계측 공정

Learn about the metrology that Edmund Optics® uses to guarantee the quality of all optical components and assemblies.

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How do I clean my optics?

Refraction

Clear Aperture (CA)

Surface Quality

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