Name: 9mm Dia. x -18mm FL, VIS-EXT Coated, Double-Concave Lens
Brand: TECHSPEC
SKU: 26-670
Price: NT$1,523

9mm Dia. x -18mm FL, VIS-EXT Coated, Double-Concave Lens

Specifications

概況

Type:

Double-Concave Lens

物理和機械特性

Diameter (mm):

9.00 +0.0/-0.025

Bevel:

Protective bevel as needed

Center Thickness CT (mm):

1.50 ±0.05

Centering (arcmin):

Clear Aperture CA (mm):

8.1

Edge Thickness ET (mm):

2.45

光學特性

Effective Focal Length EFL (mm):

-18.00

N-BK7

f/#:

2.00

Numerical Aperture NA:

0.25

Coating:

VIS-EXT (350-700nm)

Wavelength Range (nm):

350 - 700

Back Focal Length BFL (mm):

-18.49

Coating Specification:

R_avg ≤0.4% @ 425 - 675nm

Focal Length Specification Wavelength (nm):

587.6

Focal Length Tolerance (%):

±1

Radius R₁=-R₂ (mm):

-18.86

Surface Quality:

40-20

5 J/cm² @ 532nm, 10ns

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

Reach 235:

Compliant

產品概覽

AR Coated to Provide <0.5% Reflectance per Surface for 350 - 700nm
Designed for 0° Angle of Incidence
Precision Diameter and Centration Tolerances Allow for Easy OEM Integration
Additional AR Coating Options Available: Uncoated, MgF₂, VIS 0°, VIS-NIR, NIR I, and NIR II

TECHSPEC® VIS-EXT Coated Double-Concave (DCV) Lenses are designed to have two inward curved surfaces and a negative focal length similar to Plano-Concave (PCV) lenses. These lenses can be used for balancing aberrations created by other lenses within a system due to their negative spherical aberration. Plano-Concave (DCV) lenses are commonly used in a variety of applications including image reduction, beam expansion and telescopes. TECHSPEC® VIS-EXT Coated Plano-Concave (DCV) Lenses offer optimal performance in the 350nm to 700nm range. These lenses are also available Uncoated, MgF₂, VIS 0°, VIS-NIR, NIR I, or with NIR II AR coating options.

Technical Information

Accessories

Custom

愛特蒙特光學（Edmund Optics）為您提供全面的光學和成像元件客製化服務，精準滿足特定應用需求。無論您的專案處於原型開發階段或籌備量產階段，我們都能為您提供靈活的解決方案。從概念設計到產品交付，我們經驗豐富的工程師團隊將為您提供全程支援。

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9mm Dia. x -18mm FL, VIS-EXT Coated, Double-Concave Lens

Specifications

概況

物理和機械特性

光學特性

Regulatory Compliance

產品概覽

Technical Information

Accessories

相關產品

Custom

成像鏡頭選擇器

Frequently Purchased Together

資源

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Center Thickness (CT)

Chromatic Focal Shift

Conjugate Distance

Épaisseur de bord

Distance focale effective (EFL)

Finite/Finite Conjugate

Power

Singlet Lens

How to Determine Magnification of an Optical Lens Setup

Understanding Collimation to Determine Optical Lens Focal Length

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Irregularity

Radius of Curvature

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Diopter

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Bevel

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Surface Flatness

Transmission

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