40mm Dia. x 250mm FL, MgF₂ Coated, Achromatic Doublet Lens

Diameter (mm):

40.00 +0.0/-0.025

Effective Focal Length EFL (mm):

250.00

Focal Length Tolerance (%):

±2

Back Focal Length BFL (mm):

244.32

Focal Length Specification Wavelength (nm):

587.6

Clear Aperture CA (mm):

39.00

Centering (arcmin):

Center Thickness CT 1 (mm):

8.00

Center Thickness CT 2 (mm):

4.50

Center Thickness Tolerance (mm):

±0.2

Radius R₁ (mm):

156.00

Radius R₂ (mm):

-108.70

Radius R₃ (mm):

-313.64

Edge Thickness ET (mm):

10.57

N-BK7 / N-SF5

Surface Quality:

40-20

f/#:

6.25

Numerical Aperture NA:

0.08

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 Lens

Wavelength Range (nm):

400 - 700

Regulatory Compliance

RoHS 2015:

Compliant

Reach 219:

Compliant

產品系列說明

設計用於0°入射角
在 400 - 700nm 的每個表面反射率低於 1.75%
也提供VIS 0° 和 VIS-NIR抗反射鍍膜消色差透鏡

消色差膠合透鏡是由兩個光學元件相互粘合而成，經電腦進行優化，可用於修正在軸線上的球面像差和色差。我們的消色差膠合透鏡採用單層MgF₂鍍膜或寬帶多層鍍膜，可用於可見光譜範圍。還提供近紅外缐（NIR）消色差膠合透鏡和邊緣塗黑消色差膠合透鏡。

消色差膠合透鏡遠優於簡單透鏡，更適用於彩色（"白光"）成像。兩個元件會經配對組成消色差膠合透鏡（字面意思是「沒有顏色的鏡片」）、以修正玻璃內固有的顏色分離。消除了有問題的色差後,消色差膠合透鏡成爲最具成本效益的方法,提供良好的多色照明和成像。

	Title	Type	比較	庫存號碼	價格	Buy
	40.0mm Optic Dia., Optic Mount	Fixed		#64-566	NT$1,188 Qty 10+ NT$1,069 Request Quote	5-7 Days ×
	40mm Diameter, T-Mount Thick Optic Mount	Fixed		#57-978	NT$1,914 Qty 5+ NT$1,700 Request Quote	5-7 Days ×

40mm Dia. x 250mm FL, MgF2 Coated, Achromatic Doublet Lens

Regulatory Compliance

產品系列說明

40mm Dia. x 250mm FL, MgF₂ Coated, Achromatic Doublet Lens