\u003Cimg class=\"wscnph\" src=\"https://images.lbtek.com/FruehYEeOfUi7sH9Fv-M0_T3IEdT\" width=\"500\" />\u003C/p>\n\u003Cp> This application utilizes LBTEK standard plano-concave and plano-convex lenses to construct a laser beam expansion system. The collimated laser output from the optical fiber is expanded based on the beam magnification ratio Ratio=D/d. By selecting the focal lengths of the plano-concave and plano-convex lenses according to the schematic diagram, the relationship between focal lengths f1 and f2 must satisfy Ratio=D/d=f2/f1 to achieve beam expansion. If beam reduction is required, the optical path should be reversed in the schematic, with the lens focal length ratio satisfying Ratio=d/D=f1/f2. The optical system employs LBTEK standard lens mounts, rod holders, and bases, with standard Ø6mm rods at the top to ensure the optical axes of both lenses are aligned at the same height.\u003C/p>",{"productTabNameId":141,"tabName":1986},"Application",["Reactive",1988],{"$snuxt-i18n-meta":1989},{},["Set"],["ShallowReactive",1992],{"$fvpUpa8LH8tCwp-18lSLZ5DkPh0mhQrRmdb45RQuidoo":-1,"$fKUUIOjAeSHVCatg9x5tBVcMjPfqAmR42SkHRWrV1m4k":-1,"$f4wjlyPX37QhI3iWMgtMfBsdrrNppup-PybozI-o-b6A":-1},"/product/16?fid=28&tid=45",{"myAppGlobalStore":1995,"myAppCartStore":2008,"MetayImgPreviewStore":2014,"myServiceModalStore":2020,"myAppCompareStore":2022},{"sessionId":1996,"token":1997,"surveyLink":1999,"navCategory":2000,"topAds":2003,"feedbackType":2005},["Ref",75],["EmptyRef",1998],"_",["Ref",74],["Ref",2001],["Reactive",2002],[14,19,24,29,34,39,44,49,54,59,64],["Ref",2004],["Reactive",12],["Ref",2006],["Reactive",2007],[],{"cartNum":2009,"cartData":2011},["EmptyRef",2010],"0",["Ref",2012],["Reactive",2013],{},{"visible":2015,"previreList":2017},["EmptyRef",2016],"false",["Ref",2018],["Reactive",2019],[],{"visible":2021},["EmptyRef",2016],{"compareIds":2023,"compareList":2026,"compareVisible":2029},["Ref",2024],["Reactive",2025],[],["Ref",2027],["Reactive",2028],[],["EmptyRef",2016]]