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BEHP
Design wavelength
Beam magnification
Input Clear aperture
Laser Damage Threshold *
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These laser beam expanders are designed for use with a high-power laser. Fine adjustment of the collimator is available with the diopter correction function. The lens design takes into account the wavefront aberration, so it can be used in an optical system with high precision, such as a laser interferometer or laser processing.

◦The optical system of the beam expander utilizes an air gap configuration that does not use an adhesive bonding of lens.
◦By turning the diopter ring that is attached to the center of the beam expander, you can make variable beams such as a focused beam, collimated beam, and a divergent beam. It is used when you want to vary the position of the beam waist and where precision collimation adjustment is necessary.

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Guide

▶We also can provide a holder for our laser beam expander (KLH-BE) for the fine adjustment with tilt angle and to secure the beam expander. W4147
▶It is also available to provide beam expander of wavelength other than products on-line and in our catalog and achromatic in two wavelengths or more.

Attention

▶It is not possible to create a collimated light obtained by reducing the beam diameter using in the opposite direction a beam expander.  In this case, please use the appropriate optical system by determining the position of the beam waist and divergence angle of the laser beam.

Common Specifications
Lens MaterialSynthetic fused silica
Housing MaterialAluminum
Configuration of lens2 group 4plates Galilean
Housing FinishBlack Anodized
Acceptance angle±1°
CoatingAntireflection coating (Design wavelength: 633nm)
A range of the length of lens barrel±5mm
Outline Drawing

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Part Number
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    JP Yen Stock Qty
BEHP-3-266
BEHP-5-266
BEHP-10-266
BEHP-3-355
BEHP-5-355
BEHP-10-355
BEHP-3-532
BEHP-5-532
BEHP-10-532
BEHP-3-1064
BEHP-5-1064
BEHP-10-1064

266nm

φ10mm

2J/cm2

0.35kg

266nm

φ6mm

2J/cm2

0.45kg

266nm

10×

φ3mm

2J/cm2

0.45kg

355nm

φ10mm

4J/cm2

0.35kg

355nm

φ6mm

4J/cm2

0.45kg

355nm

10×

φ3mm

4J/cm2

0.45kg

532nm

φ10mm

5J/cm2

0.45kg

532nm

φ6mm

5J/cm2

0.45kg

532nm

10×

φ3mm

5J/cm2

0.45kg

1064nm

φ10mm

7J/cm2

0.35kg

1064nm

φ6mm

7J/cm2

0.45kg

1064nm

10×

φ3mm

7J/cm2

0.45kg

RoHS  

¥80,000

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US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

LOW
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US
RoHS  

¥80,000

CONTACT
US