Laser Lenses Daheng Optics Image Lenses Laser Lenses GCO-02 Achromatic Fourier Transform Lenses GCO-14 Beam Expanders GCO-25 Zoom Beam Expanders GCD-14 Motorized Zoom Beam Expanders GCO-29 Fiber Focusing Lenses GCO-31 F-theta Lenses GCO-15 Laser Focusing Lenses

Laser Lenses Catalog Products & Supplies GCO-02 Achromatic Fourier Transform Lenses These air-spaced or cemented doublets are designed for application in coherent or incoherent optical systems for information processing. Spherical, coma,astigmatic and achromatic aberrations are corrected. The components can be applied as achromatic collimators. One-Tilt Achromatic Fourier Transform Lenses It can be tilted about the Y axis by a thumbscrew. The components can bemounted on the post of Daheng product. All dimensions are in mm unless otherwise specified.

Laser Image Lenses Lenses — Daheng Optics Laser Lenses Two-Tilt Achromatic Fourier Transform Lenses It can be tilted about the Y and Z axes by two thumbscrews. The components can be mounted on post (GCM-01M and GCM-03M). Two-Tilt Achromatic Fourier Transform Lenses Part No. a A 0 D W T C H h 00140 China Daheng Group. Inc. www.cdhcorp.com All dimensions are in mm unless otherwise specified.

GCO-14 Beam Expanders A beam expander is an optical system for changing the beams diameter. The product of the diameter and divergence for a laser beam remains constant between input and output. This means that, if the beam diameter increases, the divergence of the output will decrease. Beam expanders use this inverse-proportional relationship between the diameter and divergence to expand a laser beam, or to reduce the beam divergence. Low divergence allows for a smaller focus spot of a Gaussian beam. In summary, beam expanders are used for fine focusing, reducing beam divergence and minimizing...

whereis the divergence of the input beam and 0out is the divergence of the output beam. tan( 0 in) 00142 China Daheng Group. Inc. www.cdhcorp.com All dimensions are in mm unless otherwise specified.

GCO-25 Zoom Beam Expanders GCO-25 Series Zoom Beam Expanders are designed for changing a collimated laser beam, there are two zoom ranges available: 2x~6x and 5x~10x. Adjusting the knob at the input and achieves expanding variation and restoration of collimation. With the design of using air-spaced lenses only, this series is suitable for high energy laser. Laser Image Lenses Lenses Part No. Waveband Expansion Ratio lnput Output Diamter Length Wavefront Distortion All dimensions are in mm unless otherwise specified.

For automated applications, Daheng Optics developed motorized zoom beam expanders --GCD-14 series. GCD-14 series employ the 4 lens-element optical designs and the build-in adjustment motors for controlling lens groups. With the motorized systems, both magnification and focus can be controlled independently. With Daheng Optics motorized zoom beam expanders, variable expansion ratio can automatically be set ranging from 1.5X~6X. This variability helps to reduce machine set up times and provides flexibility to equipment for a wide range of jobs. All dimensions are in mm unless otherwise specified....

Features ♦ Continuous variable expansion ratio ♦ Wavelength: 450~650nm or 780~1080nm or 10.6pm ♦ Default expansion setting pre-programmed ♦ User-defined magnification settings ♦ Use-controlled focus adjustment ♦ Communication with PC or joystick with a USB Laser Image Lenses Lenses GCD-14 Motorized Zoom Beam Expanders Part No. Expansion Waveband Max. entrance beam0 at Output Damage Transmission Ratio 1/e2 Gaussian beam (mm) Aperture Threshold All dimensions are in mm unless otherwise specified. www.cdhcorp.com

Laser Image Lenses Lenses Daheng Optics GCO-29 Fiber Focusing Lenses Fiber focusing lenses are designed to use for the laser output of a fiber with common standard fiber connection attachment. They are widely used in laser machining systems for welding, cutting, drilling and structuring applications. They are also used in the end-pump DPSS laser systems to focus the pump radiation output into the laser crystal. Daheng fiber focusing lens (GCO-29) employs an optimized design with multi-elements system. The focus spot has a fix magnification with the fiber core diameter. The lenses also characterized...

GCO-31 F-theta Lenses F-theta Lenses are plane field objectives, which are commonly used in combination with XY galvanometer scanner. Contrary to a normal lens which focuses a input collimated beam on a spherical image plane, a F-theta lens focuses on a flat image surface. At the same time, it maintains almost constant spot size over the entire field when the input beam scans with input angle 0. The position of the spot on the image plane is directly proportional to the scan angle, i.e. F-theta condition: Laser Image Lenses Lenses Daheng F-theta lens series (GCO-31) fulfils the F-theta...

Laser Image Lenses Lenses Daheng Optics Key parameters ♦ The overall scan angle,0max, refers to the maximum diagonal scan angle. ♦ The entrance beam diameter, 0beam(1/e2), is the beam diameter where the optical intensity is 13.5% of the peak intensity of the laser beam. ♦ Factor of apodisation (FAP)is the ratio of the beam diameter, 0beam, and the entrance pupil,0aper , of the F-theta lens. FAP is used for calculation of the minimal possible focus spot size. ♦ Diffraction value M2 refers to the ability of focusing laser light, defined by ISO11146 standards. It is the ratio of the divergence...

Catalog Products & Supplies GCO-15 Laser Focusing Lenses Air-spaced focusing lenses are designed to focus the high-power radiation emitted by lasers. The lenses are optimized for high precision applications such as used in laser machining systems for welding, cutting, drilling and strutting. They can also be used for collimating the laser beam delivered by fiber. The Daheng’s air-spaced focusing lens product utilizes high quality triple lens elements which are optimized to obtain a diffraction-limited focus spot. With the design-specific optical coating, the lens system achieves transmission...