Meniscus Lenses

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Meniscus Lenses

These positive and negative focus length lenses have different radii on both sides.

Centration, arcmin	<3 arcmin
Clear Aperture, %	>90%
Coatings	Available on request
Design Wavelength, nm	632.8 nm
Diameter Tolerance, mm	+0.0/-0.1 mm
Focal Length Tolerance, %	±3 %
Protective chamfers	<0,25 mm x 45 deg
Surface Figure	<λ/4@632.8 nm
Surface Flatness	40/20 S/D
Thickness Tolerance, mm	±0.1 mm

Description

Details

Meniscus lenses are used in applications to reduce beam distortion. They are used on focusing light beam in telescopes, collimators or condenser systems, optical transceivers or other applications. Under customer request anti-reflection or other types of coatings can applied.

Features

Minimizes spherical aberration
Improves image quality
Reduces spot size

Applications

Properties (Diameter D, Focal length L)

D, mm	D, Inches	L Minimal, mm	L Maximal, mm
12,7	0.5	+/- 25	+/- 10.000
25,4	1	+/- 30	+/- 10.000
38,1	1.5	+/- 50	+/- 10.000
50,8	2	+/- 80	+/- 10.000
76,2	3	+/- 100	+/- 10.000

Name	Diameter, mm	Material	ROC1, mm	ROC2, mm	Price	Quantity
1-ML-1-A254	25.4	BK7	50	-50	US$44.20
1-ML-1-B254	25.4	BK7	100	-100	US$44.20
1-ML-1-C254	25.4	BK7	150	-150	US$44.20
1-ML-1-D254	25.4	BK7	200	-200	US$44.20
1-ML-1-E254	25.4	BK7	250	-250	US$44.20
1-ML-1-F254	25.4	BK7	300	-300	US$44.20
1-ML-2-A254	25.4	UVFS	50	-50	US$75.40
1-ML-2-B254	25.4	UVFS	100	-100	US$75.40
1-ML-2-C254	25.4	UVFS	150	-150	US$75.40
1-ML-2-D254	25.4	UVFS	200	-200	US$75.40
1-ML-2-E254	25.4	UVFS	250	-250	US$75.40
1-ML-2-F254	25.4	UVFS	300	-300	US$75.40