Name: 12.5mm Dia x -75mm FL VIS 0°, Inked, Negative Achromatic Lens
Brand: TECHSPEC
SKU: 62-489-INK
Price: NT$3,430

Diameter (mm):

12.50 ±0.025

Effective Focal Length EFL (mm):

-75.00

Focal Length Tolerance (%):

±1

Back Focal Length BFL (mm):

-77.47

Focal Length Specification Wavelength (nm):

587.6

Clear Aperture CA (mm):

11.50

Centering (arcmin):

<1

Center Thickness CT (mm):

5.50 ±0.10

Center Thickness CT 1 (mm):

2.50 ±0.05

Center Thickness CT 2 (mm):

3.00 ±0.05

Radius R₁ (mm):

-46.07

Radius R₂ (mm):

36.65

Radius R₃ (mm):

108.00

Edge Thickness ET (mm):

6.05

N-BK7 / N-SF5

Surface Quality:

40-20

f/#:

6.00

Numerical Aperture NA:

0.08

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

Bevel:

Protective bevel as needed

Type:

Negative Achromatic Lens

Wavelength Range (nm):

425 - 675

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

產品系列說明

VIS 0° 及 VIS-NIR 鍍膜
6.25 - 25mm 直徑選項
也提供 MgF₂ 鍍膜負消色差透鏡

TECHSPEC® 寬頻抗反射鍍膜負消色差透鏡針對色彩及軸上像差進行校正。這類透鏡是由兩個黏合在一起的光學元件組成，通常作為巴洛鏡頭用於延伸焦距。TECHSPEC® 寬頻抗反射鍍膜負消色差透鏡提供多種直徑尺寸，以及 VIS 0° 或 VIS-NIR 鍍膜選項。

12.5mm Dia x -75mm FL VIS 0°, Inked, Negative Achromatic Lens

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Regulatory Compliance

產品系列說明