Name: 9mm Dia x 18mm EFL Steinheil Triplet Achromatic Lens
Brand: TECHSPEC
SKU: 47-674
Price: NT$3,815

Diameter (mm):

9.00 +0.0/-0.025

Effective Focal Length EFL (mm):

18.00

Focal Length Tolerance (%):

±1

Back Focal Length BFL (mm):

12.85

Focal Length Specification Wavelength (nm):

587.6

Centering (arcmin):

<3

Center Thickness CT (mm):

12.96

Center Thickness A (mm):

7.2

Center Thickness B (mm):

2.88

Radius R₁ (mm):

11.25

Radius R₂ (mm):

5.89

Radius R₃ (mm):

-5.89

Radius R₄ (mm):

-11.25

Edge Thickness ET (mm):

11.08

N-BASF64 / N-BK7 / N-BASF64

Surface Quality:

40-20

f/#:

2.00

Numerical Aperture NA:

0.25

Coating:

MgF₂ (400-700nm)

Coating Specification:

R_avg ≤1.75% @ 400 - 700nm

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Bevel:

Protective bevel as needed

Type:

Achromatic Triplet Lens

Wavelength Range (nm):

400 - 700

Regulatory Compliance

RoHS 2015:

Compliant

Reach 219:

Compliant

Certificate of Conformance:

View

產品系列說明

專為 1:1 共軛比率所設計
適用於中繼系統
也提供Hastings 三片式消色差透鏡

TECHSPEC® Steinheil 三片式消色差透鏡是專為 1:1 共軛比率所設計，並透過對稱性校正像差。Steinheil 三片式消色差透鏡是在兩個相同的高折射率外元件之間，黏合一個低折射率元件製作而成。每個透鏡會在增場時，以合理的像差校正漸漸接近 f 值。相較於傳統 Steinheil 透鏡設計，TECHSPEC® Steinheil 三片式消色差透鏡採用小直徑，可安裝在較小的空間中。Steinheil 三片式消色差透鏡適用於中繼系統。

9mm Dia x 18mm EFL Steinheil Triplet Achromatic Lens

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Regulatory Compliance

產品系列說明