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Lenses for high resolution machine vision Schneider Optics,Inc.|New York&CPO|Los Angeles,USAPentacon GmbH|Dresden,GermanyIts all about confidence and cooperationSchneider1 group8 companieslocal partner networkJos.Schneider Optische Werke GmbH|Germany Schneider Bando Ltd.|Seoul,KoreaSchneider Asia Pacific Ltd.|Hong KongSchneider Optical Technologies(Shenzhen)Co.Ltd.|ChinaSchneider Kreuznach ISCO Division GmbH&Co.KG|Gttingen,GermanyIts all about focus on segments B+W FilterProjection LensesIndustrial OpticsDigital ProjectionServo HydraulicsPhoto OpticsIndustryPhotoCinemaOphthalmic LensesSchneider Business UnitsPhotoCinemaIndustrySchneiders Business Unit Industrial OpticsOur Vision:We want to improve vision system technology for industrial and non-manufacturing image processing applications.Our Mission:Providing high quality optical solutions for image processing applications helps system integrators and equipment manufacturers to enhance their vision systems.Our engineering and product developments are driven by the requirements derived from long-term partnerships with our customers.Our employees are the fundamental success factor and we trust in their commitment to solve our customers problems.Our 90-years of expertise in optical design and manufacturing allows us to produce superior products and provide a professional consultancy and support to contribute to the success of our customers.1.How to choose the correct lens2.What can we do with the Schneider lens2fff2fobjectImage Which camera is used?Size of the sensor?That defines the required image circle of the lens:e.g.a 2/3 inch format CCD requires a lens with image circle 11 mm diagonal e.g.a 8k 7m line scan CCD requires a a lens with image circle 58 mm Pixel size?That defines the required image side resolution of the lens:e.g.a 7 m pixel size means a Nyquist frequency of 72 lp/mm e.g.a 5 m pixel size means a Nyquist frequency of 100 lp/mm Lens interface?That defines the mechanical adaptation and for some interfaces the distance between flange and sensor:e.g.C-mount(flange sensor distance 17.52 mm)e.g.F-mount(flange sensor distance 46.5 mm)for other interface such as M42 or M72,you need to know the camera specific distance You may specify the manufacturer and model of the camera.To choose the right lens you must know Gaussian Opticsmagnification beta=image height y/object height yOO=total track(object to image distance)F-Number F#=f/EP=1/2 N.A.effective F-Number F#eff=(1-beta)F#infinity yObjectHeight y Image HeightFFHHXSfSHHdOOSfSfEP:entrance pupiln=refractive index(image plane)u=aperture angle(image plane)numerical aperture N.A.=n sin uFor our Makro and Unifoc System:Use our XLS-Calculator to check the possible configurations with our CPN lensessuch as required length of extension tubesNote for Makro and Unifoc System:Magnification ratios towards stronger reduction need an increasing minimum distance between the lens and the sensor,so for interfaces with large distances to the sensor,there is a minimum focal length required:example:F-mount interface,magnification=0.1 requires a focal length f 80 mmIn general:try to avoid F-mount,better use M42 instead相机型号：P3-8x-12K 分辨率：12k，Sensor size：61.44 pixel size:5 Mount:M72 Depth：9.4mm拍摄视野:620mm 拍摄高度控制在:500-700之间caseMK-CPN-S 4.0/60 14802 Ext.tube 10mm V/V 20178 10mm Adapter V/leica 20054 6.5mm Unifoc 76 13048 Adapter M58/M72*0.75 13052 2mm General Market&Technology TrendsDriving factors for surface and web inspection in QA of manufacturing:Detection of smaller defect sizes(10 microns)Better reliability of inspection process(zero defect)Reduced cost by more efficient component use (faster scan for increased throughput)Impact on machine vision components:increasing resolution of line scan cameras(4k,8k,12k,16k,)smaller pixel sizes of line scan sensors(7 microns,5 microns,3.5 microns)high performance optics for macro imagingRequirements on OpticsImaging attributes characterizing a high quality lens:image sharpness and contrast over the entire field geometrically accurate reproduction over the entire field uniform high performance for any point in the field homogeneous brightness distribution over the entire image field high and uniform spectral transmission color fringes as small as possible as little stray light as possibleNyquist FrequencyThe Nyquist frequency is the limit of the number of line pairs per mm,for example determined by the pixel size of the sensor.It is the maximum possible resolution.1 1RN=100 Lp/mm 2 x p 0,005 x 2For a pixel size(p)of 5 microns(0.005 mm),the Nyquist frequency is:16 MTFBrightness Distribution:1=white 0=black Modulation(MTF)=Difference in Brightness Modulation as a function of the fineness of lines(No.of line pairs/mm)The MTF(Modulation Transfer Function)describes the quality of an imaging system with respect to sharpness and contrast.I(MAX)I(MIN)Modulation=-I(MAX)+I(MIN)Modulation In ImageMTF=-Modulation In ObjectIntensity/BrightnessSpherical coordinatesLens parameters are usually expressed in spherical coordinates:-A lens is theoretically fully rotationally symmetric-Same performance on spheres of same radius-parameter is graphed over image height(radius)Image circle:maximum image size of the lensOpticalaxisparameterImage heightResolution of LensesIdeal:100%contrast up to the Nyquist frequency0%contrast above Nyquist frequencyReality:High contrast at low frequenciesLower contrast at high frequenciesTypical criteria for a lens selection process:30%contrast at 0.67*Nyquist frequencyNote:The total systems MTF is the product of the lenss MTF,filters MTF,image sensor MTF and the MTF of the electronics.Modulation Transfer FunktionThe MTF of a lens depends on:the number of line pairs per mm the magnification ratio()for which it is used in the actual set-up(effective N.A.)the iris opening(F-number)the field angle(w):MTF(tan)cos3(w)Relative Illuminationobject to imagedistanceimage circle radiusmagnification=rel.image height21.6mmcenter/optical axis f/2.8 f/5.6+f/8.0Fall-off of illumination in%from the optical axis to the maximum image height-also called vignetting.One differentiates the natural vignetting,which depends on the cos4 of the angle of field(can not be prevented)and those,which is intentionally implemented by the optics designer,in particular for lenses with high relative apertures.Original25%fall-off50%fall-off75%fall-offGeometric DistortionZeroDistortionDistortion is a change in magnification as a function of field of viewReal Chief RayParaxialChief RayDistortion(Positive)Heighty=f Tan Zero DistortionPositive orPincushionNegative orBarrel GD%=h-hhGD%=Percent Geometric Distortionh=Actual Image Height(includes distortion)h=Image Height(without distortion effect)x 100EXAMPLEGD%=10h=4.5mmh=4.95mm(actual Image Height)Geometric DistortionSpectral CorrectionInsufficient spectral correction of lenses lead to color fringes which reduces image quality also of black&white cameras.Business Unit Industrial OpticsJos.Schneider Optische Werke GmbH designs,develops,manufactures and markets:Optical and opto-mechanical components,subassemblies for machine vision and other image processing applications.Competitive advantage:World class optical design&manufacturing expertise High optical and mechanical quality Robust opto-mechanical assemblies Flexible and individual customizations Professional consultancyApplications:Surface&web inspection AOI of LCD,PCB,glass,metal,etc AOI in photovoltaic applications such as solar cell inspection ITS and traffic law enforcement systems Document reading Postal identification and sorting Metrology,2D/3D Medical imaging BiometricsCompact C-mount lenses:focal length 4.8mm 70mm sensor formats up to 2/3 inch:CNG 1.8/4.8,CNG 2.1/6,CNG 1.4/8,CNG 1.4/12 XNP 1.4/17,XNP 1.4/23,XNP 1.9/35 Tele-Xenar 2.2/70 sensor formats up to 1 inch:CNG 1.9/10,CNG 1.8/16 sensor formats up to 22mm diagonal:XNP 2.0/28,XNP 2.8/50Standard Products for Machine Vision:Fast C-mount lenses:sensor formats up to 2/3 inch:Xenon 0.95/17 sensor formats up to 1 inch:Xenon 0.95/25Standard Products for Machine Vision:Modular Macro System:Benefits Modular concept for maximum flexibility:adapt to C-mount,F-mount,M42,T2,M58,M72 different focus mounts to match focus range requirements selection of extension tubes to realize any optical magnification Highest optical imaging performance even with small pixel sizes Vibration insensitivity for stable imaging performance Focus and iris lock for stable optical properties Robust industrial design according to ISO 9022 Industrial-grade metal body Use of glass lenses,precise and constantly excellent optical quality 100%quality control guarantees reliable and constant quality Low maintenance,high MTBF Shock tested up to 50g (special ruggedized version for higher shock possible)Applications Web inspection PCB Inspection Flat Panel/Glass Inspection Solar inspection Machine vision Medical 2D/3D measurements Packaging Defect detection and classification Food processing BiometricsStandard Products for Machine Vision:Modular Macro System:focal lengths 28mm 150mm sensor sizes up to 30mm:Componon 2.8/28,Componon CPN 2.8/35 sensor sizes up to 43mm:Apo-Componon 2.8/40,Apo-Componon 4.0/45 Componon-S 2.8/50 sensor sizes up to 60mm:Apo-Componon 4.0/60 sensor sizes up to 80mm:Componon-S 4.0/80,Apo-Componen 4.5/90 sensor sizes 100mm:Componon-S 5.6/100,CPN-S 5.6/135,CPN-S 5.6/150 Makro-Symmar 5.6/80Standard Products for Machine Vision:Lenses for high-resolution line scan:Makro-Symmar 5.6/120 designed for high-resolution line scan up to 12k large image circle up to 90 mm high optical resolution for pixel sizes down to 5m low distortion 4 versions for magnification:1X,0.75X,0.5X,0.33XStandard Products for Machine Vision:Telecentric lenses:1:1 1:5bilateral telecentric lensesfor sensor formats up to 2/3 inch:Xenoplan 1:1Xenoplan 1:2Xenoplan 1:3Xenoplan 1:4Xenoplan 1:5Standard Products for Machine Vision:3-CCD lenses:C-mount lenses for color cameras withprism and sensor formats up to 1/3 inch:Cinegon 2.0/5.3Cinegon 1.7/10Standard Products for Machine Vision:Industrial Filters:-UV cutoff,IR cutoff,UV-IR cutoff-IR pass-Color filters-Neutral density filters-Polarizing filters-Band pass interference filters-Anti-reflection and other thin film coatingsStandard Products for Machine Vision:High definition inspection lenses for 0.5X 2XWith Continuous Aberration Suppression Compensation Feature(CAS)Focal length:85mmF#:4.5Magnification range:0.50X-2.00X(to be adjusted by CAS)Image circle:62mm(for sensors e.g.:8k 7,8k 5,12k 5)Distortion:0.1%Relative illumination:85%for 2y=62 mm beta=-1.0 -2.0continuous extreme high polychromatic MTF of 30%at 70 lp/mm over the entire field wavelength range:400nm 700nmstrict isoplanatism,absence of coma over the entire range of magnification achromatism of high orderno trade offs in respect to CDM(chromatic differences of magnification)optimized in respect to waveoptics,show already maximum performance at full openingThis lens has diffraction limited performance!MacroVaron 4.5/85 CAS 0.5X-2.0XNew:we offer a cost-effective MacroVaron for a fixed magnification If you already know the magnification ratio and the F#:order a semi-custom version for this fixed magnification and fixed irisIf you do not know the final magnification ratio and F#:-get a standard version to the customer for evaluation-customer defines best beta and best iris(shall be mostly fully open),fix both beta ring and iris at this position-send the evaluation sample back to Germany and place order for semi-custom version-we make and ship a semi-custom version-beta setting and iris fixed as definedThe cost saving potential is expected to be about:30%MacroVaron-fixed beta versionHigh magnification inspection lenses for 3.5X Focal length:50mmF#:2.8Magnification:3.5XWorking distance:31mm(for a 7m pixel size,this means 2 microns per pixel resolution at the object)Image circle:58mm(for sensors e.g.:8k 7)Distortion:0.1%Relative illumination:95%for 2y=58 mmMTF of 40%at 50 lp/mm over the entire field(object side:30%MTF at 210 lp/mm)Wavelength range:400nm 700nmThis lens has diffraction limited performance!It is a cost-effective 6 element design!Micro-Symmar 2.8/50 3.5XThis sensor requires a lens with an image circle of 11mm and 30%MTF at 97lp/mm.Schneider-Kreuznach series of Apo-Xenoplan lenses for 5 MP:Apo-Xenoplan 1.4/17Apo-Xenoplan 1.4/23Apo-Xenoplan 1.8/35Sony ICX 625 (5 MP)Pixels:2456*2058Pixel Size:3.45 x 3.45Sensor Diagonal:11,0mmNyquist Frequency:145lp/mm2/3 of Nyquist:97lp/mmNew C-Mount Lenses for 5 Megapixelcompact designtransmission optimized for 400-1000nmcorrected for VIS and NIRlong-term stable locking of focus and irisMicrolenses increase the fill factor of the sensor by capturing as much light as possible.However,they have an acceptance angle at which they will effectively collect light and focus it onto the active portion of the pixel.Anti-Shading lenses for sensors with microlensesTelecentric lenses(image side!)Conventional lenses:shading effects in the corners because incident angle is larger than acceptance angle of microlensesImage side telecentric lenses:No shading because incident angle is within the acceptance angle of microlensesAnti-Shading lenses for sensors with microlensesSchneider-Kreuznach series of Apo-Xenoplan lensesfor sensors with microlenses on the pixel:C-mountimage circle 24mmoptimized for CCD with micro lenses designed for Kodak 4 MP and 8 MP sensorwavelength range 400-1000nmvery high image performancecompact and robust designAnti-Shading lenses for sensors with microlensesApo-Xenoplan 2.0/20Apo-Xenoplan 2.0/24Apo-Xenoplan 2.0/28Apo-Xenoplan 2.0/35Short Wave InfraRed lenses Designed for 800-1800nmAverage transmission about 94%(900-1400nm)Even contrast over the entire image circleDistortion less than 1%Usage of highly transparent glass for SWIR rangeSpecial lacquering inside to minimize stray light in the SWIR range SWIR lenses for InGaAs SensorsSWIRON 1.4/23:Compact C-mount lens,image circle 11mmSWIRON 2.8/40:Macro lens with V-mount interfaceimage circle 43mmdesigned for line scan sensors and large area sensorsimage circle 43.2mmtransmission 400-1000nmlow distortionrobust mechanics for industrial environmentfocus and iris setting lockableF-Mount interfaceIndustrial F-mount lensesXenon-Emerald 2.2/50:F#2.2,focal length 50mmXenon-Emerald 2.8/100:F#2.8,focal length 100mmXenon-Sapphire lens series for 16k:designed for 16k line scan sensors with pixel size 3.5mfamily for different magnification from infinity to 0.7x optical magnificationhigh resolution for very small pixel size down to 3.5mimage circle 62mmconstant MTF over the entire fieldlow distortionRoadmap CONFIDENTIALModels:0.02x Xenon-Sapphire 4.7/950.07x Xenon-Sapphire 4.5/950.23x Xenon-Sapphire 3.9/950.29x Xenon-Sapphire 3.7/960.35x Xenon-Sapphire 3.5/960.50 x Xenon-Sapphire 3.2/960.70 x Xenon-Sapphire 3.2/97In planning:version for 1.75xAround the world and beyondUnit Industry:Lenses for machineVisionHigh optical resolutionFor industrial CCD and CMOS camerasRobust design forextreme environmentsIts all for the ideal viewLenses for high qualitysecurity such as trafficlaw enforcementVIS through NIRHigh resolution for number plate identificationCompact size&robust designLenses for machine visionIts all for the ideal viewLenses for surface&web inspectionHigh resolution downto a few micronsLarge image circles for high resolution line scan cameras(up to 12k)Modular system for flexible solutionsLenses for machine visionLenses for high quality security such as traffic law enforcementIts all for the ideal viewp经常不断地学习,你就什么都知道。你知道得越多,你就越有力量pStudyConstantly,AndYouWillKnowEverything.TheMoreYouKnow,TheMorePowerfulYouWillBe写在最后感谢聆听不足之处请大家批评指导Please Criticize And Guide The Shortcomings结束语讲师：XXXXXX XX年XX月XX日