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

12.5mm Dia x -50mm FL VIS 0° Coated, Negative Achromatic Lens

Name: 12.5mm Dia x -50mm FL VIS 0° Coated, Negative Achromatic Lens
Brand: TECHSPEC
SKU: 62-488
Price: ₹7,656

Stock #62-488 10 to 12 days Other Coating Options

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₹7,656

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₹7,656

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₹6,508

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Product Details

Type:

Negative Achromatic Lens

Physical & Mechanical Properties

Diameter (mm):

12.50 +0.0/-0.025

Clear Aperture CA (mm):

11.50

Centering (arcmin):

Center Thickness CT (mm):

3.56 ±0.10

Center Thickness CT 1 (mm):

2.00 ±0.05

Center Thickness CT 2 (mm):

1.56 ±0.05

Edge Thickness ET (mm):

4.40

Bevel:

Protective bevel as needed

Optical Properties

Effective Focal Length EFL (mm):

-50.00

Focal Length Tolerance (%):

±1

Back Focal Length BFL (mm):

-51.58

Focal Length Specification Wavelength (nm):

587.6

Radius R₁ (mm):

-30.83

Radius R₂ (mm):

23.47

Radius R₃ (mm):

69.20

N-BK7 / N-SF5

Surface Quality:

40-20

f/#:

4.00

Numerical Aperture NA:

0.13

Coating:

VIS 0° (425-675nm)

Coating Specification:

R_avg ≤0.4% @ 425 - 675nm

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Wavelength Range (nm):

425 - 675

Regulatory Compliance

RoHS 2015:

Compliant

Reach 219:

Compliant

Certificate of Conformance:

View

Product Family Description

VIS 0° and VIS-NIR Coatings
6.25 – 25mm Diameter Options
MgF₂ Coated Negative Achromatic Lenses also Available

TECHSPEC® Broadband AR Coated Negative Achromatic Lenses are corrected for color and on-axis aberrations. These lenses, consisting of two optical elements cemented together, are commonly used as Barlow lenses to extend focal lengths. The achromatic lenses are available in various diameter sizes and VIS 0° or VIS-NIR coating options. TECHSPEC® Broadband AR Coated Negative Achromatic Lenses are offered in 6.25 - 25mm diameter options. MgF2 Coated Negative Achromatic Lenses are also available.