*Spot size (um) Entrance. *Mir. Sep. (mm) Pupil (mm) SL F x

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1 Application M1-M2 Focal Plane Medical Optics F-Theta Lens μm (Single Element) F-theta lenses are commonly used in conjunction with galvanometer scanning mirrors in laser engraving, cutting, and marking systems. The reason it being named as F-theta is due to the radial image height equals to focal length of the lens multiplied by the angle of the chief ray makes in the object space. Hence, from the image height, the distortion of the image can be calculated at each field of interest. Typically the F-theta distortion of this lens is kept less than 1% so that it produces a precise spot on the flat field on image plane. Specifications Diameter Tolerance Thickness Tolerance +0.0, -0.13mm ±0.25mm M1 Paraxial Focal ±2% Centration 3 arc minutes M2 Clear >80% Surface Figure λ/2 per Surface Quality AR/AR Coating scratch and dig R<0.5% per M2-Mount edge field *Spot size *Mir. Sep. 2nd mir. to lens edge Max. (deg.) BFL Lens Dia. ET SL F x SL F52Z x SL Z x SL G x SL F75Z x SL Z x SL F100Z x SL F100Z x SL F100Z-48A x SL F120Z x SL F150Z x SL F150Z x SL F200Z x SL F200Z x Wavelength Technology Singapore Pte. Ltd. Tel: Fax:

2 Optics Medical Application field *Spot size *Mir. Sep. 2nd mir. to lens edge Max. (deg.) BFL Lens Dia. ET SL F250Z x SL F300Z x SL F300Z-48B x SL F360Z x SL F420Z x SL F420Z x SL F435Z x SL F450Z x SL F480Z x SL F480Z x SL F573Z x SL F573Z x SL F573Z x SL F574Z x SL F620Z x SL F720Z x SL F720Z x SL F740Z x SL F830Z x SL F934Z x SL F1100Z x SL F1150Z x SL F1191Z x SL F2122Z x SL G x SL G X SL G X SL G X SL G X SL G X SL E X Wavelength Technology Singapore Pte. Ltd. Tel: Fax:

3 Application Medical Optics field *Spot size *Mir. Sep. 2nd mir. to lens edge Max. (deg.) BFL Lens Dia. ET SL E x SL E x SL E x SL E x SL E x Mounting is available upon request, we provide two types of common mountings for industry application: R - with M85x1 S - with 3 holes 120 degree apart at diameter 73.2mm Data Sheet for mounted SL series is available upon request. : G-GaAs, E-Ge ( only transmit 10.6um ) : Z- ZnSe ( transmit both 10.6um and visible ) *Recommended X-Y Mirror separation. *Diffraction Limited Spot Size. * is not guaranteed, and for reference only. 37 Wavelength Technology Singapore Pte. Ltd. Tel: Fax:

4 M1-M2 Focal Plane Optics Medical Application μm (Double Element) Doublet F-theta ning lens provide better performance than singlet. It has more ever and less distortion over the scan field. We use ZnSe or GaAs for this series of scan lens. M1 M2 M2-Mount edge Spot Size *Mir. Sep. 2nd Mir. to Mount Edge Max. (deg.) SL G x SL G x SL G x SL G x SL G x SL G x SL G x SL G x SL G x SL G x SL F420G x SL Z x SL F200Z x SL F250Z x SL F300Z x SL Z x SL AZ x SL Z x : G-GaAs ( transmit 10.6um only ) : Z- ZnSe ( transmit both 10.6um and visible ) *Recommended X-Y Mirror separation. * is not guaranteed, and for reference only. Wavelength Technology Singapore Pte. Ltd. Tel: Fax:

5 Application M1-M2 Focal Plane Medical Optics - 9.4μm (Triple Element Made of ZnSe) Triplet F-theta scan lens is developed to achieve minimum and F-theta distortion. These give diffraction limited performance and further improved over doublet scan lens. M1 M2 M2-Mount edge Filed (mm²) pupil *Mirrors separation 2nd mirror to mount edge Max scan angle SL W X / SL Z X / *Recommended X-Y Mirror separation. *: ZnSe * is not guaranteed, and for reference only. 39 Wavelength Technology Singapore Pte. Ltd. Tel: Fax:

6 M1-M2 Focal Plane Optics Medical Application nm,1064nm,532nm,355nm,266nm M1 M2 M2-Mount edge is set at center point of X-Y mirror in case of two-axis scanning system. Eye Safe (Wavelength 1550nm) (±º) Nd:YAG LASER (Wavelength 1064 nm) Ent. SL Ent. pupil SL x SL x SL x SL x SL A x SL-1064-F x SL x SL A x SL R x SL x SL-1064-F x SL x SL x SL-1064-F x SL x SL x SL x SL x SL x Wavelength Technology Singapore Pte. Ltd. Tel: Fax:

7 Application Medical Optics GREEN LASER (Wavelength 532 nm) UV LASER ( Wavelength 355 nm) Ent. pupil Ent. pupil spot size spot Size SL x SL A x SL x SL x SL x SL x SL x SL Q x SL Q x SL x SL x SL x SL x SL x UV LASER (Wavelength 266 nm) Ent. pupil spot Size SL x SL x SL x nm Fiber Lens (±º) Ent. pupil SLF SLF SLF Wavelength Technology Singapore Pte. Ltd. Tel: Fax:

8 Optics Medical Application nm, 940nm (Achromatic) With CCD camera been equipped into laser scanning system, Achromatic scan lens is developed to color correct different wavelengths images. The focal length, working distance and focus spot are identically for both laser working wavelength and visible wavelength, it will help CCD to capture the actual image through F- theta scan lens, generally low dispersion crown glass and high dispersion flint glass are jointly used to correct the chromatic aberration. Nd:YAG (wavelength 1064/532nm, 1064/635nm) Wavelength Ent. pupil Screw Thread SL / x M85x1 SL / x M85x1 SL / x M85x1 SL / x M85x1 Achromatic Lens (wavelength 808/940nm) Wavelength (±º) Ent. pupil Screw Thread SL AC / M85x1 * is not guaranteed, and for reference only. Wavelength Technology Singapore Pte. Ltd. Tel: Fax: