Name: 25mm Dia. x 25mm EFL Precision Aspherized Achromatic Lens
Brand: TECHSPEC
SKU: 85-302
Price: NT$41,125

Diameter (mm):

25.00 +0.0/-0.1

Effective Focal Length EFL (mm):

25.00

Back Focal Length BFL (mm):

16.40

Focal Length Specification Wavelength (nm):

587.6

Clear Aperture CA (mm):

22.5

Centering (arcmin):

≤3

Center Thickness CT (mm):

25.00

Center Thickness CT 1 (mm):

17.00

Center Thickness CT 2 (mm):

8.0

Edge Thickness ET (mm):

16.92

N-PK51 / S-NPH2

Surface Quality:

20-10

f/#:

1.00

Numerical Aperture NA:

0.50

Coating:

MgF₂ (400-700nm)

Coating Specification:

R_avg ≤1.75% @ 400 - 700nm

Type:

Achromatic Lens

Wavelength Range (nm):

450 - 700

Asphere Figure Error, RMS @ 632.8nm:

0.8λ

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

產品系列說明

全玻璃色差校正非球面
是成像和生物科學應用的理想選擇
MgF2 鍍膜

TECHSPEC®精密非球面消色差透鏡採用全玻璃設計，可實現真正的消色差，縱向色差不到10μm。這些消色差透鏡在整個可見光光譜中，具有接近繞射極限的特性，並擁有高數值孔徑 (可提高光通量) 與很小的光斑尺寸。TECHSPEC® 精密非球面消色差透鏡非常適用於螢光顯微鏡、低訊雜比的成像應用以及多雷射的生物技術應用。

CT: Center Thickness, ET: Edge Thickness, R: Radius, P: Principal Plane, BFL: Back Focal Length, EFL: Effective Focal Length