Beam Expander
This beam expander is for CO2 laser systems. Beam expanders enlarge beam diameter and reduce divergence for long-range illumination/projection and focusing. Divergence varies inversely with expansion ratio, and an expanded beam can focus to a smaller spot. Magnification is the beam-diameter ratio. The output beam-parameter product is approximately constant: expanding waist radius by x reduces divergence to 1/x. Reducing divergence is collimation; spot size times divergence is an optical invariant. It does not improve beam quality, described here as the product of waist radius and divergence, because the waist/spot grows as divergence shrinks. Laser markers often combine expanders with flat-field focusing lenses.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material [Expansion factor 1.55; diameter 47mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 1.55; diameter 47mm] | 1.55 |
| Housing Dimensions - Length [Expansion factor 1.55; diameter 47mm] | 36 毫米 |
| Housing Dimensions - Diameter [Expansion factor 1.55; diameter 47mm] | 47 毫米 |
| Clear Aperture - Input [Expansion factor 1.55; diameter 47mm] | 9 毫米 |
| Clear Aperture - Output [Expansion factor 1.55; diameter 47mm] | 14 毫米 |
| Material [Expansion factor 2.1; diameter 47mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 2.1; diameter 47mm] | 2.1 |
| Housing Dimensions - Length [Expansion factor 2.1; diameter 47mm] | 36 毫米 |
| Housing Dimensions - Diameter [Expansion factor 2.1; diameter 47mm] | 47 毫米 |
| Clear Aperture - Input [Expansion factor 2.1; diameter 47mm] | 9 毫米 |
| Clear Aperture - Output [Expansion factor 2.1; diameter 47mm] | 14 毫米 |
| Material [Expansion factor 4; diameter 54.75mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 4; diameter 54.75mm] | 4 |
| Housing Dimensions - Length [Expansion factor 4; diameter 54.75mm] | 38.1 毫米 |
| Housing Dimensions - Diameter [Expansion factor 4; diameter 54.75mm] | 54.75 毫米 |
| Clear Aperture - Input [Expansion factor 4; diameter 54.75mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 4; diameter 54.75mm] | 17.15 毫米 |
| Material [Expansion factor 2; diameter 54.86mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 2; diameter 54.86mm] | 2 |
| Housing Dimensions - Length [Expansion factor 2; diameter 54.86mm] | 38.1 毫米 |
| Housing Dimensions - Diameter [Expansion factor 2; diameter 54.86mm] | 54.86 毫米 |
| Clear Aperture - Input [Expansion factor 2; diameter 54.86mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 2; diameter 54.86mm] | 17.15 毫米 |
| Material [Expansion factor 1.25; diameter 57.3mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 1.25; diameter 57.3mm] | 1.25 |
| Housing Dimensions - Length [Expansion factor 1.25; diameter 57.3mm] | 30.48 毫米 |
| Housing Dimensions - Diameter [Expansion factor 1.25; diameter 57.3mm] | 57.3 毫米 |
| Clear Aperture - Input [Expansion factor 1.25; diameter 57.3mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 1.25; diameter 57.3mm] | 17.78 毫米 |
| Material [Expansion factor 3; diameter 54.76mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 3; diameter 54.76mm] | 3 |
| Housing Dimensions - Length [Expansion factor 3; diameter 54.76mm] | 30.48 毫米 |
| Housing Dimensions - Diameter [Expansion factor 3; diameter 54.76mm] | 54.76 毫米 |
| Clear Aperture - Input [Expansion factor 3; diameter 54.76mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 3; diameter 54.76mm] | 17.78 毫米 |
| Material [Expansion factor 4; diameter 54.66mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 4; diameter 54.66mm] | 4 |
| Housing Dimensions - Length [Expansion factor 4; diameter 54.66mm] | 30.48 毫米 |
| Housing Dimensions - Diameter [Expansion factor 4; diameter 54.66mm] | 54.66 毫米 |
| Clear Aperture - Input [Expansion factor 4; diameter 54.66mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 4; diameter 54.66mm] | 17.78 毫米 |
| Material [Expansion factor 5; diameter 61.94mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 5; diameter 61.94mm] | 5 |
| Housing Dimensions - Length [Expansion factor 5; diameter 61.94mm] | 30.48 毫米 |
| Housing Dimensions - Diameter [Expansion factor 5; diameter 61.94mm] | 61.94 毫米 |
| Clear Aperture - Input [Expansion factor 5; diameter 61.94mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 5; diameter 61.94mm] | 17.78 毫米 |
| Material [Expansion factor 1.5; diameter 53.69mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 1.5; diameter 53.69mm] | 1.5 |
| Housing Dimensions - Length [Expansion factor 1.5; diameter 53.69mm] | 30.48 毫米 |
| Housing Dimensions - Diameter [Expansion factor 1.5; diameter 53.69mm] | 53.69 毫米 |
| Clear Aperture - Input [Expansion factor 1.5; diameter 53.69mm] | 17.15 毫米 |
| Clear Aperture - Output [Expansion factor 1.5; diameter 53.69mm] | 17.78 毫米 |
| Material [Expansion factor 2.5; diameter 61.37mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 2.5; diameter 61.37mm] | 2.5 |
| Housing Dimensions - Length [Expansion factor 2.5; diameter 61.37mm] | 36 毫米 |
| Housing Dimensions - Diameter [Expansion factor 2.5; diameter 61.37mm] | 61.37 毫米 |
| Clear Aperture - Input [Expansion factor 2.5; diameter 61.37mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 2.5; diameter 61.37mm] | 22.86 毫米 |
| Material [Expansion factor 2.5; diameter 69.07mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 2.5; diameter 69.07mm] | 2.5 |
| Housing Dimensions - Length [Expansion factor 2.5; diameter 69.07mm] | 36 毫米 |
| Housing Dimensions - Diameter [Expansion factor 2.5; diameter 69.07mm] | 69.07 毫米 |
| Clear Aperture - Input [Expansion factor 2.5; diameter 69.07mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 2.5; diameter 69.07mm] | 22.86 毫米 |
| Material [Expansion factor 2.5; diameter 68.56mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 2.5; diameter 68.56mm] | 2.5 |
| Housing Dimensions - Length [Expansion factor 2.5; diameter 68.56mm] | 36 毫米 |
| Housing Dimensions - Diameter [Expansion factor 2.5; diameter 68.56mm] | 68.56 毫米 |
| Clear Aperture - Input [Expansion factor 2.5; diameter 68.56mm] | 17.15 毫米 |
| Clear Aperture - Output [Expansion factor 2.5; diameter 68.56mm] | 22.86 毫米 |
| Material [Expansion factor 5; diameter 56.5mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 5; diameter 56.5mm] | 5 |
| Housing Dimensions - Length [Expansion factor 5; diameter 56.5mm] | 30.5 毫米 |
| Housing Dimensions - Diameter [Expansion factor 5; diameter 56.5mm] | 56.5 毫米 |
| Clear Aperture - Input [Expansion factor 5; diameter 56.5mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 5; diameter 56.5mm] | 22.86 毫米 |
| Material [Expansion factor 7.5; diameter 61.94mm] | Zinc Selenide |
| Expansion Factor [Expansion factor 7.5; diameter 61.94mm] | 7.5 |
| Housing Dimensions - Length [Expansion factor 7.5; diameter 61.94mm] | 30.48 毫米 |
| Housing Dimensions - Diameter [Expansion factor 7.5; diameter 61.94mm] | 61.94 毫米 |
| Clear Aperture - Input [Expansion factor 7.5; diameter 61.94mm] | 11.43 毫米 |
| Clear Aperture - Output [Expansion factor 7.5; diameter 61.94mm] | 22.86 毫米 |
Key Features
Datasheet
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Supplier Information
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