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See all 280 Products in Family

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

50mm Dia. x 100mm FL, VIS-NIR, Inked, Achromatic Lens

Name: 50mm Dia. x 100mm FL, VIS-NIR, Inked, Achromatic Lens
Brand: TECHSPEC
SKU: 49-390-INK
Price: £178.50

Stock #49-390-INK 3-4 days Other Coating Options

- +

£178^.50

Qty 1-5
£178.50

Qty 6+
£142.80

Volume Pricing
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Product Downloads

STEP:stp

PDF Drawing:pdf

ISO 10110 Drawing

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Spec Sheets:pdf

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Code V:seq

EO Spec Sheet

Specifications
Product Details
Technical Information
Accessories
Coating Curves
Related Products
Imaging Lens Selector
Frequently Purchased Together
Compatible Mounts
Resources

Specifications

General

Type:

Achromatic Lens

Physical & Mechanical Properties

Diameter (mm):

50.00 ±0.025

Clear Aperture CA (mm):

49.00

Centering (arcmin):

Center Thickness CT (mm):

17.92 ±0.20

Center Thickness CT 1 (mm):

13.92 ±0.10

Center Thickness CT 2 (mm):

4.00 ±0.10

Edge Thickness ET (mm):

12.55

Bevel:

Protective bevel as needed

Optical Properties

Effective Focal Length EFL (mm):

100.00

Focal Length Tolerance (%):

±1

Back Focal Length BFL (mm):

89.94

Focal Length Specification Wavelength (nm):

587.6

Radius R₁ (mm):

69.28

Radius R₂ (mm):

-46.95

Radius R₃ (mm):

-446.01

N-BAF10 / N-SF10

Surface Quality:

40-20

f/#:

2.00

Numerical Aperture NA:

0.25

Coating:

VIS-NIR (400-1000nm)

Coating Specification:

R_abs ≤0.25% @ 880nm
R_avg ≤1.25% @ 400 - 870nm
R_avg ≤1.25% @ 890 - 1000nm

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Wavelength Range (nm):

400 - 1000

Regulatory Compliance

RoHS 2015:

Compliant

REACH 201:

Compliant

Certificate of Conformance:

View

Product Details

Designed for 0° Angle of Incidence
Less Than 0.25% Reflectance Per Surface @ 880nm
MgF₂ and VIS 0° Coated Achromats Also Available

TECHSPEC® VIS-NIR Coated Achromatic Lenses consist of two optical components cemented together to form an achromatic doublet. The doublet is computer optimized to correct for on-axis spherical and chromatic aberrations. TECHSPEC® VIS-NIR Coated Achromatic Lenses have visible/near-infrared broadband anti-reflection coating, which is specially optimized to yield maximum transmission (>99%) in the near-infrared. The achromatic lenses reduce reflection to less than 0.25 percent per surface at 880nm. Magnesium Fluoride coated and VIS 0° coated achromats are also available.

Technical Information

Accessories

Coating Curves

VIS-NIR (400-1000nm)

Only 2 different Y Axises can be displayed at one time.

Please note that coating performance outside each product’s specified design range is theoretical and may vary.

Related Products

Aspherized Achromatic Lenses

Optical Cleaning

Optical Lens and Filter Mounts

Optical Lenses

Imaging Lens Selector

Frequently Purchased Together

#33-468 - 6-way Male/Female Hirose Cable, 3m Length

£123.25

#33-924 - 75mm Dia. x 100mm FL, VIS-NIR Coated, Achromatic Lens

£311.95

#34-301 - 375nm 12.5mm Dia., High Performance Longpass Filter

£168.30

#43-787 - 50mm Diameter Unmounted, Linear Glass Polarizing Filter

£46.75

Compatible Mounts

Title	Type	Stock Number	Price	Buy
50.0mm Optic Dia., Optic Mount	Fixed	#64-568	£39.10 Request Quote	3-4 days ×
50mm Diameter, T-Mount Thick Optic Mount	Fixed	#88-944	£83.30 Request Quote	3-4 days ×
50.0/50.8mm Optic Dia., X-Y Translating Optic Mount	Adjustable - Linear (XY)	#62-957	£244.80 Request Quote	3-4 days ×

Check out our full selection of mounts here.

Resources

Filter

Anti-Reflection (AR) Coatings

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

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An Introduction to Optical Coatings

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

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Lens Geometry Performance Comparison

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.

View Now

NIR (Near Infrared)

View Now

VIS/NIR Coating

View Now

The Correct Material for Infrared (IR) Applications

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

View Now

Infrared (IR) Spectrum

View Now

Achrotech: achromat cost versus performance for conventional, diffractive, and GRIN components

View Now

Why Use an Achromatic Lens?

Want to know why you should use an achromatic lens? Find out more about achromatic lenses including the anatomy, notable features, and more at Edmund Optics

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Achromatic Lenses Review

Learn about EO's most popular family of optical lenses and discover if achromatic lenses are ideal for your next application.

View Now

How is the location of the principal plane of a negative achromatic lens calculated?

View Now

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.

View Now

Hyperspectral & Multispectral Imaging – TRENDING IN OPTICS: EPISODE 7

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

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Abbe-Number

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Achromatic Lens

View Now

Crown Glass

View Now

Doubler Tube

View Now

Doublet Lens

View Now

Flint Glass

View Now

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

View Now

Dispersion

Dispersion is the dependence of the phase velocity or phase delay of light on another parameter, such as wavelength, propagation mode, or polarization.

View Now

Aspherized Achromatic Lens Review

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.

View Now

What is the difference between the effective focal length and the back focal length?

View Now

Apochromatic

View Now

Back Focal Length (BFL)

View Now

Dispersion

View Now

Hybrid Molding

View Now

Sag

View Now

Aspherized Achromatic Lenses

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

View Now

Why Choose an Achromatic Cylinder Lens?

Debating whether or not to use a traditional cylinder lens or an achromatic cylinder lens? Discover the benefits of achromatic cylinder lenses at Edmund Optics.

View Now

Aberrations

Need help understanding aberration theory? Learn about a few fundamental concepts to help clarify your understanding at Edmund Optics.

View Now

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

View Now

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

View Now

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

View Now

Center Thickness (CT)

View Now

Chromatic Focal Shift

View Now

Conjugate Distance

View Now

Épaisseur de bord

View Now

Distance focale effective (EFL)

View Now

Finite/Finite Conjugate

View Now

How to Determine Magnification of an Optical Lens Setup

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

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Understanding Collimation to Determine Optical Lens Focal Length

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

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How to Form an Image with an Optical Lens Setup

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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Irregularity

View Now

Radius of Curvature

View Now

BBAR Coating

View Now

Diopter

View Now

Anti-Reflection (AR) Coating

View Now

Bevel

View Now

Seamed Edge

View Now

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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Transmission

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How do I clean my optics?

View Now

Clear Aperture (CA)

View Now

Refraction

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Edmund Optics Global Manufacturing Facilities

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

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Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

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

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Surface Quality

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The Benefits of Color-Corrected Optical Lenses

Color-corrected optical lenses are ideal for many applications because they reduce multiple aberrations. Learn more about the advantages at Edmund Optics.

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