Operand DefinitionsZEMAX supports optimization operands which are used to define the merit function. Each operand may be assigned a weight which indicates the relative importance of that operand, as well as a target, which is the desired value for that operand. The operands are listed below.ABSO: Absolute valueACOS: ArccosineAMAG: Angular magnificationANAR: Angular aberrationASIN: ArcsineASTI: AstigmatismATAN: ArctangentAXCL: Axial colorBLNK: BlankBSER: Boresight ErrorCOGT: Conic greater thanCOLT: Conic less thanCOMA: ComaCONF: Configuration #CONS: ConstantCOSI: CosineCOV A: Conic valueCTGT: Center thickness greater than 中心厚度(间隔)大于CTLT: Center thickness less than 中心厚度(间隔)小于CTV A: Center thickness value 中心厚度(间隔)等于CVGT: Curvature greater than 曲率大于CVLT: Curvature less than 曲率小于CVOL: Cylinder volumeCVV A: Curvature value 曲率等于DENC: Diffraction encircled energyDENF: Diffraction encircled energy fractionDIFF: DifferenceDIMX: Distortion max 最大畸变DISC: Distortion calibratedDISG: Generalized distortionDIST: Distortion 畸变DIVI: DivisionDLTN: Delta NDMFS: Default merit function start 默认评价函数起始点DMGT: Diameter greater thanDMLT: Diameter less thanDMV A: Diameter valueDXDX: Derivative Dx/DxDXDY: Derivative Dx/DyDYDX: Derivative Dy/DxDYDY: Derivative Dy/DyEFFL: Effective focal length 有效焦距EFLX: Effective focal length xEFL Y: Effective focal length yENDX: End executionENPP: Entrance pupil position 入瞳位置EPDI: Entrance pupil diameter 入瞳直径EQUA: EqualETGT: Edge thickness greater than 边缘厚度大于ETLT: Edge thickness less than 边缘厚度小于ETV A: Edge thickness value 边缘厚度等于EXPP: Exit pupil position 出瞳位置FCGS: Field curvature, generalized, sagittal FCGT: Field curvature, generalized, tangential FCUR: Field curvature 场曲FICL: Fiber coupling efficiencyFOUC: Foucault analysisGBW0: Gaussian beam waist 0GBWA: Gaussian beam sizeGBWD: Gaussian beam divergenceGBWZ: Gaussian beam z positionGBWR: Gaussian beam phase radiusGCOS: Glass relative costGENC: Geometric encircled energyGLCA: Global coordinate x normalGLCB: Global coordinate y normalGLCC: Global coordinate z normalGLCX: Global coordinate x coordinateGLCY: Global coordinate y coordinateGLCZ: Global coordinate z coordinateGMTA: Geometric MTF average 几何平均MTF GMTS: Geometric MTF sagittal 几何弧矢MTF GMTT: Geometric MTF tangential几何子午MTF GPIM: Ghost Pupil ImageGRMN: Gradient minimum indexGRMX: Gradient maximum indexGTCE: Glass Thermal Coefficient of Expansion HHCN: Tests for hyper-hemisphere conditions IMAE: Image analysis efficiencyINDX: Index of refractionInGT: Index greater than折射率大于InLT: Index less than 折射率小于InV A: Index value 折射率等于ISFN: Image space F/# 像方F数LACL: Lateral colorLINV: Lagrange invariantLPTD: LightPath DeltaMAXX: MaximumMCOG: Multi-configuration operand greater thanMCOL: Multi-configuration operand less thanMCOV: Multi-configuration operand valueMINN: MinimumMNAB: Minimum Abbe 最小阿贝数MNCA: Minimum center thickness air最小中心间隔（空气）MNCG: Minimum center thickness glass最小中心厚度（玻璃）MNCT: Minimum center thickness 最小中心厚度（间隔）MNCV: Minimum curvature 最小曲率半径MNDT: Minimum diameter to thickness ratio最小通光直径与厚度之比MNEA: Minimum edge thickness air最小边缘间隔（空气）MNEG: Minimum edge thickness glass最小边缘厚度（玻璃MNET: Minimum edge thickness最小边缘厚度（间隔）MNIN: Minimum index最小折射率MNPD: Minimum partial dispersionMNSD: Minimum semi-diameterMSWA: MTF square wave averageMSWS: MTF square wave sagittalMSWT MTF square wave tangentialMTFA: MTF average 平均MTFMTFS: MTF sagittal 弧矢MTFMTFT: MTF tangential 子午MTFMXAB: Maximum Abbe 最大阿贝数MXCA: Maximum center thickness air 最大中心间隔（空气）MXCG: Maximum center thickness glass最大中心厚度（玻璃）MXCT: Maximum center thickness 最大中心厚度（间隔）MXCV: Maximum curvature 最大曲率半径MXDT: Maximum diameter to thickness ratio最大通光直径与厚度之比MXEA: Maximum edge thickness air 最大边缘间隔（空气）MXEG: Maximum edge thickness glass 最大边缘厚度（玻璃）MXET: Maximum edge thickness 最大边缘厚度（间隔）MXIN: Maximum index 最大折射率MXPD: Maximum partial dispersionMXSD: Maximum semi-diameter 最大半口径NPXG: Non-sequential object position x greater thanNPXL: Non-sequential object position x less thanNPXV: Non-sequential object position x valueNPYG: Non-sequential object position y greater thanNPYL: Non-sequential object position y less thanNPYV: Non-sequential object position y valueNPZG: Non-sequential object position z greater thanNPZL: Non-sequential object position z less than NPZV: Non-sequential object position z value NSDD: Non-sequential detector dataNSTR: Non-sequential traceNTXG: Non-sequential object tilt about x greater than NTXL: Non-sequential object tilt about x less than NTXV: Non-sequential object tilt about x value NTYG: Non-sequential object tilt about y greater than NTYL: Non-sequential object tilt about y less than NTYV: Non-sequential object tilt about y value NTZG: Non-sequential object tilt about z greater than NTZL: Non-sequential object tilt about z less than NTZV: Non-sequential object tilt about z value NPGT: Non-sequential object parameter greater than NPLT: Non-sequential object parameter less than NPV A: Non-sequential object parameter value OBSN: Object space N.A. 物方空间N.A.OFF: OffOPDC: Optical path differenceOPDM: Optical path difference mean reference OPDX: Optical path difference centroid reference OPGT: Operand greater thanOPLT: Operand less thanOPTH: Optical pathOSUM: Operand sumPnGT: Parameter greater than. Obsolete operand. See PMGT. PnLT: Parameter less than. Obsolete operand. See PMLT. PnVA: Parameter value. Obsolete operand. See PMV A. PMGT: Parameter greater thanPMLT: Parameter less thanPMV A: Parameter valuePANA: Paraxial x normalPANB: Paraxial y normalPANC: Paraxial z normalPARA: Paraxial x cosinePARB: Paraxial y cosinePARC: Paraxial z cosinePARR: Paraxial r coordinatePARX: Paraxial x coordinatePARY: Paraxial y coordinatePARZ: Paraxial z coordinatePATX: Paraxial x tangentPATY: Paraxial y tangentPETC: Petzval curvaturePIMH: Paraxial image height 理想像高PLEN: Path lengthPMAG: Paraxial magnification 理想放大率POWR: Power (surface)PRIM: Primary wavelengthPROD: ProductQSUM: Quadratic sumRAGX: Real global x coordinate RAGY: Real global y coordinateRAGZ: Real global z coordinateRAGA: Real global x direction cosine RAGB: Real global y direction cosine RAGC: Real global z direction cosine RAED: Ray angle of exitance in degrees RAEN: Ray angle of exitanceRAID: Ray angle of incidence in degrees RAIN: Ray angle of incidenceRANG: Ray angleREAA: Real ray x cosineREAB: Real ray y cosineREAC: Real ray z cosineREAX: Real x coordinateREAY: Real y coordinateREAZ: Real z coordinateRENA: Real x normalRENB: Real y normalRENC: Real z normalRETX: Real x tangentRETY: Real x tangentRGLA: Reasonable glassRSCE: RMS spot centroidRSCH: RMS spot chief rayRSRE: RMS spot centroid (with vignetting) RSRH: RMS spot chief ray (with vignetting) RWCE: RMS wave centroidRWCH: RMS wave chiefRWRE: RMS wave centroid (with vignetting) RWRH: RMS wave chief ray (with vignetting) SAGX: Sag xSAGY: Sag ySFNO: Sagittal working F/#SINE: SineSKIN: Skip if not symmetricSKIS: Skip is symmetricSPHA: Spherical aberrationSQRT: Square rootSUMM: SummationSVIG: Set VignettingTANG: TangentTFNO: Tangential working F/#TMAS: Total massTOTR: Total trackTRAC: Transverse aberration referenced to centroidTRAD: Transverse aberration x componentTRAE: Transverse aberration y componentTRAI: Transverse aberration radius at intermediate image TRAR: Transverse aberration radiusTRAX: Transverse aberration xTRAY: Transverse aberration yTRCX: Transverse aberration x component referenced to centroid TRCY: Transverse aberration y component referenced to centroid TTGT: Total thickness greater than 总厚度大于TTHI: Total thickness 总厚度TTLT: Total thickness less than总厚度小于TTV A: Total thickness value 总厚度等于UDOP: User defined operandUSYM: Use axial symmetryVOLU: VolumeWFNO: Working F/# 工作F数XDGT: Extra data value greater than XDLT: Extra data value less thanXDV A: Extra data valueXENC: Extended source encircled energy XNEA: X minimum edge thickness air XNEG: X minimum edge thickness glass XNET: X minimum edge thickness XXEA: X maximum edge thickness air XXEG: X maximum edge thickness glass XXET: X maximum edge thickness YNIP: YNI paraxial contribution ZERN: Zernike coefficientsZPLM: ZPL Macro computationsZTHI: Zoom thickness。