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See all 20 Products in Family

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

18mm Dia. x 35mm FL, YAG-BBAR Coated, Achromatic Doublet Lens

Name: 18mm Dia. x 35mm FL, YAG-BBAR Coated, Achromatic Doublet Lens
Brand: TECHSPEC
SKU: 15-477
Price: ₹8,439

YAG-BBAR Coated Achromatic Lenses

Stock #15-477 10 to 12 days Other Coating Options

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₹8,439

Qty 1-5
₹8,439

Qty 6+
₹6,743

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EO Spec Sheet

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

Specifications

General

Type:

Achromatic Lens

Physical & Mechanical Properties

Diameter (mm):

18.00 +0.0/-0.025

Clear Aperture CA (mm):

17.00

Centering (arcmin):

Center Thickness CT (mm):

7.61 ±0.20

Center Thickness CT 1 (mm):

6.01 ±0.10

Center Thickness CT 2 (mm):

1.60 ±0.10

Edge Thickness ET (mm):

5.61

Bevel:

Protective bevel as needed

Optical Properties

Effective Focal Length EFL (mm):

35.00

Focal Length Tolerance (%):

±1

Back Focal Length BFL (mm):

30.72

Focal Length Specification Wavelength (nm):

587.6

Radius R₁ (mm):

24.26

Radius R₂ (mm):

-16.23

Radius R₃ (mm):

-152.99

N-BAF10 / N-SF10

Surface Quality:

40-20

f/#:

1.94

Numerical Aperture NA:

0.26

Coating:

YAG-BBAR (500-1100nm)

Coating Specification:

R_abs <0.25% @ 532nm
R_abs <0.25% @ 1064nm
R_avg <1.0% @ 500 - 1100nm

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Wavelength Range (nm):

500 - 1100

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

Product Details

Optimized for <0.25% Absolute Reflectivity at 532nm and 1064nm
Excellent Broadband Transmission from 500 - 1100nm
Low Cost Alternative to Air-Spaced Focusing Doublets

TECHSPEC® YAG-BBAR Coated Achromatic Lenses consist of two optical components cemented together to form a doublet that is ideal for correcting on-axis spherical and chromatic aberrations. These achromats feature a broadband anti-reflective coating with superior transmission from 500 - 1100nm, and are optimized for less than 0.25% absolute reflectivity at 532 and 1064nm. Our TECHSPEC® YAG-BBAR Coated Achromatic Lenses are specifically designed to minimize the spot size for polychromatic illumination within the recommended usable wavelength range, but may also be used for focusing Nd:YAG lasers, especially those with an alignment beam.

Technical Information

Accessories

Related Products

Nd:YAG Air-Spaced Achromatic Focusing Doublets

Laser Lenses

Achromatic Lenses

Optical Lens and Filter Mounts

Imaging Lens Selector

Frequently Purchased Together

#45-928 - 12mm Dia. x -12mm FL, VIS-NIR Coated, Double-Concave Lens

₹3,959

#32-988 - 12mm Dia. x -12mm FL, Uncoated, Double-Concave Lens

₹2,654

#33-202 - 6.25mm Dia. x 12.5mm FL, YAG-BBAR Coated, Achromatic Lens

₹6,003

#33-205 - 12.5mm Dia. x 25mm FL, YAG-BBAR Coated, Achromatic Lens

₹7,134

Compatible Mounts

	Title	Type	Compare	Stock Number	Price	Buy
	18.0mm Optic Dia., Optic Mount	Fixed		#64-558	₹2,610 Request Quote	10 to 12 days ×
	18mm Diameter, C-Mount Thick Optic Mount	Fixed		#54-625	₹4,524 Request Quote	10 to 12 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.

View Now

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.

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

View Now

Infrared Light

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

View Now

Short Wave Infrared (SWIR)

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

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Advantages of Using Meniscus Lenses in Infrared Applications

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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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.

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

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Infrared (IR) Spectrum

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.

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

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Abbe-Number

View Now

Achromatic Lens

View Now

Crown Glass

View Now

Doubler Tube

View Now

Doublet Lens

View Now

Flint Glass

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

What is SWIR?

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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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.

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.

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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.

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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.

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Aberrations

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

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

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

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

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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

View Now

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.

View Now