Name: 6.25mm Dia. x 25mm FL, YAG-BBAR Coated, Achromatic Lens
Brand: TECHSPEC
SKU: 33-203
Price: €66,00

6.25mm Dia. x 25mm FL, YAG-BBAR Coated, Achromatic Lens

Diameter (mm):

6.25 +0.000/-0.025

Effective Focal Length EFL (mm):

25.00

Focal Length Tolerance (%):

±1

Back Focal Length BFL (mm):

23.45

Focal Length Specification Wavelength (nm):

587.6

Clear Aperture CA (mm):

5.25

Centering (arcmin):

Center Thickness CT 1 (mm):

2.3

Center Thickness CT 2 (mm):

0.9

Center Thickness Tolerance (mm):

±0.2

Radius R₁ (mm):

15.37

Radius R₂ (mm):

11.16

Radius R₃ (mm):

32.17

Edge Thickness ET (mm):

2.73

N-BK7 / N-SF5

Surface Quality:

40-20

f/#:

4.00

Numerical Aperture NA:

0.12

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

Bevel:

Protective bevel as needed

Type:

Achromatic Lens

Wavelength Range (nm):

500 - 1100

Regulatory Compliance

RoHS 2015:

Compliant

Reach 219:

Compliant

Certificate of Conformance:

View

Product Family Description

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.

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