1、November 2012Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 37.020!$:N“1922343www.din.deDDIN ISO 9211-2Optics and photonics Optical coatings Part 2: Optical properties (ISO 9211-2:2010),English translation of DIN ISO 9211-2:2012-11Optik und Photonik Optische Schichten Teil 2: Optische Eigenschaften (ISO 9211-2:2010),Englische bersetzung von DIN ISO 9211-2:
3、2012-11Optique et photonique Traitements optiques Partie 2: Proprits optiques (ISO 9211-2:2010),Traduction anglaise de DIN ISO 9211-2:2012-11SupersedesDIN ISO 9211-2:2001-07www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 17 pages10.12 A
4、 comma is used as the decimal marker. ContentsPage National foreword .3 National Annex NA (informative) Bibliography4 1 Scope .5 2 Normative references .5 3 Terms and definitions 5 4 Optical properties to be specified 5 5 Measurement conditions .5 6 Numerical specification and graphical representati
5、on of spectral characteristics .6 6.1 General 6 6.2 Rules for the numerical specification of spectral characteristics 6 6.3 Rules for the graphical representation of spectral characteristics .7 6.4 Graphical representation of principal optical functions .7 Annex A (normative) Supplementary terms and
6、 definitions for filtering and selecting functions 14 2DIN ISO 9211-2:2012-11National foreword This standard has been prepared by Technical Committee ISO/TC 172 “Optics and photonics”, Subcommittee SC 3 “Optical materials and components” (Secretariat: JISC, Japan). The responsible German body involv
7、ed in its preparation was the Normenausschuss Feinmechanik und Optik (Optics and Precision Mechanics Standards Committee), Working Committee NA 027-01-03 AA Dnne Schichten fr die Optik. DIN ISO 9211-2 is part of a series of standards dealing with surface treatments of components and substrates (excl
8、uding ophthalmic optics/spectacles) by the application of optical coatings (see National Annex “Bibliography”). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or al
9、l such patent rights. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 9211-1 DIN ISO 9211-1 Amendments This standard differs from DIN ISO 9211-2:2001-07 as follows: a) the first paragraph has been added in Clause 4 “Optical properties to b
10、e specified”; b) the former Table 1 “Conditions and optical properties to be specified” has been deleted from Clause 5 “Measurement conditions”; c) Subclause 6.2 “Rules for the numerical specification of spectral characteristics” has been added; d) Subclause 6.3 “Rules for the graphical representati
11、on of spectral characteristics” has been revised; e) in Subclause 6.4 “Graphical representation of principal optical functions”, the figures (formerly in Sub-clause 6.2) have been revised and numerical examples have been included; f) the terms and definitions from Subclauses 6.2.5 “Filtering functio
12、n” and 6.2.6 “Selecting function” have been revised and moved to a new Annex A; g) the former Annex A “Examples of recommended spectral geometry” has been deleted; h) the former Annex B “Numerical examples of spectral graphs (recommended formats)” has been deleted. Previous editions DIN 58190-1: 197
13、2-11 DIN 58191-1: 1982-05 DIN 58191-2: 1982-05 DIN 58191-3: 1982-05 DIN ISO 9211-2: 2001-07 3DIN ISO 9211-2:2012-11National Annex NA (informative) Bibliography DIN ISO 9211-1, Optics and photonics Optical coatings Part 1: Definitions 4DIN ISO 9211-2:2012-11Optics and photonics Optical coatings Part
14、2: Optical properties 1 Scope ISO 9211 identifies surface treatments of components and substrates excluding ophthalmic optics (spectacles) by the application of optical coatings and gives a standard form for their specification. It defines the general characteristics and the test and measurement met
15、hods whenever necessary, but is not intended to define the process method. This part of ISO 9211 indicates how to specify optical properties of coatings and to represent their spectral characterization graphically. 2 Normative references The following referenced documents are indispensable for the a
16、pplication of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 9211-1, Optics and photonics Optical coatings Part 1: Definitions 3 Terms and definitions For the purposes
17、of this document, the terms and definitions given in ISO 9211-1 apply. 4 Optical properties to be specified When specifying optical properties, the refractive indices of the incidence medium and the emergent medium shall be given. The polarization state of the incident radiation shall also be indica
18、ted if the angle of incidence, , is different from zero or a range of angles of incidence is given. If there is no indication, unpolarized radiation is assumed. The optical properties (), (), (), D() and () of a coating shall be specified by using the formulation given and explained in 6.2 in order
19、to provide a comprehensive description of a coating with regard to its minimum set of optical properties. Other optical properties like scattering or colorimetric parameters etc. shall be subject to agreement between supplier and user if appropriate. 5 Measurement conditions The measurement conditio
20、ns for the spectrophotometric characterization shall be subject to agreement between supplier and user. These conditions depend on the principle of the measurement method and the instruments used, including the angle of incidence, the state of polarization, the spectral range and bandwidth of the me
21、asurement beam, etc. and shall be recorded in sufficient detail to enable verification of the measurement. 5DIN ISO 9211-2:2012-116 Numerical specification and graphical representation of spectral characteristics 6.1 General This part of ISO 9211 defines the rules for the spectrophotometric characte
22、rization of optical coatings. 6.2 Rules for the numerical specification of spectral characteristics The general structure of a numerical specification, as distinguished from a graphical specification, of a spectral optical property shall follow the structure of an inequality with the following terms
23、: (lower limit term) (lower limit term). Table 1 gives a schematic representation of elements necessary for the numerical specification of spectral characteristics as shown in Table 2. NOTE Unless otherwise specified, the symbols and denote the specular transmittance and reflectance. Table 1 Scheme
24、of elements for the numerical specification of spectral characteristics Lower limit (subscript L) Comparator signSpectral optical property Wavelength (or wavenumber) range or single wavelength(or wavenumber), angle of incidenceaComparator signUpper limit (subscript U) Z represents any of i = 1, 2, .
25、 i = 1, 2, . i = 1, 2, . ZLi0,98 ave(400 nm to 700 nm) W 0,995 FI-BP 0,85 u (535 nm to 565 nm) u 0,95 (400 nm to 515 nm) 0,97 PO s(450 nm to 650 nm, 45) 0,95 p(450 nm to 650 nm, 45) 342121General designation: RE (2i1to 2i, ) i, ; i = 1, 2, Numerical example: RE (400 nm to 700 nm, 25 to 35) 0,98 (730
26、 nm to 770 nm, 25 to 35) 0,96 ave(400 nm to 700 nm, 25 to 35) 0,995 Figure 1 Reflecting function 6.4.3 Antireflecting function (AR) The antireflecting function shall be characterized by its upper tolerance limit of spectral reflectance, U. If necessary, the spectral transmittance with its lower tole
27、rance limit, L, should be indicated. 1234 12 3 4 5General designation: AR (ito i+1, ) 0,90 (585 nm to 700 nm) 0,85 Figure 6 Filtering function of band rejection type 10DIN ISO 9211-2:2012-116.4.7 Selecting or combining function (SC) Selecting functions can be subdivided into two different groups, na
28、mely a) Selecting function of long pass type (SC-LP) The long pass selecting function shall be characterized by its upper and lower tolerance limits of spectral transmittance (U, L) in the long wavelength pass range and its upper limits of spectral transmittance (Ui) in its short wavelength blocking
29、 range. ULU13412 General designation: SC-LP L0,95 p(450 nm to 650 nm, 45 to 50) 0,05 Figure 9 Polarizing function 6.4.9 Phase changing function (PC) The phase changing function shall be characterized by its upper and lower tolerance limits of phase retardation ( U, L). UL12 General designation: PC L
30、 (1to 2, ) UNumerical example: PC 89 (10,5 m to 10,7 m, 45) 97 Figure 10 Phase changing function 12DIN ISO 9211-2:2012-116.4.10 Absorbing function (AB) The absorbing function shall be characterized by its upper and lower tolerance limits of spectral absorptance (U, L). U1L1U2L212General designation:
31、 AB L2i1L2i (2i1to 2i, ) U2i1U2i, i = 1, 2, Numerical example: AB 0,75 0,60 (500 nm to 600 nm, 0) 0,90 0,75 Figure 11 Absorbing function 13DIN ISO 9211-2:2012-11Annex A (normative) Supplementary terms and definitions for filtering and selecting functions A.1 Filtering function of bandpass type The b
32、andpass filtering function can be additionally characterized by using terms and definitions as follows (see Figure A.1): 1) Ais the arithmetic average of upper and lower tolerance limits within the pass region. ULA2+= 2) Mis the measured maximum value of spectral transmittance within the pass region
33、. 3) Mis the wavelength at which spectral transmittance equals M. For the subsequent terms and definitions it must be specified whether Aor Mwill be used. The superscript refers to the short wavelengths and the superscript to the long wavelengths of the bandpass. 4) 0,5and 0,5(edge wavelengths Eand
34、E) are the wavelengths at which spectral transmittance equals 0,5Aor 0,5M. 5) 0,5(full width at half maximum, FWHM) is the bandwidth defined by 0,5= 0,5 0,5. 6) C(centre wavelength) is the arithmetic average of a pair of wavelengths, 0,5and 0,5. 7) 0,8 and 0,8are the wavelengths at which spectral tr
35、ansmittance equals 0,8Aor 0,8M. 8) 0,8is the bandwidth defined by 0,8= 0,8 0,8. 9) 0,05and 0,05are the wavelengths at which spectral transmittance equals 0,05Aor 0,05M. 10) 0,05is the bandwidth defined by 0,05= 0,05 0,05. 11) SAor SMand SAor SMare the edge slopes defined by AAA0,8A 0,05A0,8 0,05S =o
36、r MMM0,8M 0,05M0,8 0,05S =AAA0,05A 0,8A0,8 0,05S = or MMM0,05M 0,8M0,8 0,05S = 12) (0,05) and (0,05) are the wavelengths at which spectral transmittance equals 0,05 (absolute value of spectral transmittance). 14DIN ISO 9211-2:2012-1113) Aor Mand Aor Mare the relative transition widths in % defined b
37、y 0,8AA(0,05)100(0,05) =or 0,8MM(0,05)100(0,05) =0,8AA(0,05)100(0,05) =or 0,8MM(0,05)100(0,05) =NOTE In earlier literature the designation “Slope” or “%Slope” is used for above definitions. But these designations can lead to a misunderstanding of the real meaning of the equations, which give a measu
38、re for the width of the wavelength range between the blocking region and the pass region in relation to the spectral position of the filter. The smaller this value is, the steeper is the transmission curve of the filter. 14) The short and long wavelengths blocking ranges shall be defined according t
39、o 6.4.6 a). NOTE All terms with the exception of A are additionally used for the characterization of bandpass filtering functions and are given with tolerances. ULU134MC1256 MAEEM0,80,50,05M(0,05) “(0,05)0,8 = FWHMA100 (0,05)(0,05)0,8 MM100(0,05)(0,05)M0,80,8“0,5=“=“0,8 MFigure A.1 Filtering functio
40、n (bandpass, M, is used) 15DIN ISO 9211-2:2012-11A.2 Selecting functions of long pass and short pass type The long and short pass selecting functions can be additionally characterized by using terms and definitions as follows (see Figure A.2): 1) Ais the arithmetic average of upper and lower toleran
41、ce limits within the pass region. ULA2+= 2) Mis the measured maximum value of spectral transmittance within the pass region. For the subsequent terms and definitions it must be specified whether A or Mwill be used. 3) 0,5(edge wavelength E) is the wavelength at which spectral transmittance equals 0,
42、5Aor 0,5M. 4) 0,8 is the wavelength at which spectral transmittance equals 0,8Aor 0,8M. 5) 0,05is the wavelength at which spectral transmittance equals 0,05Aor 0,05M. 6) SAor SMare the edge slopes defined by AAA0,8A 0,05A0,8 0,05S=or MMM0,8M 0,05M0,8 0,05S=7) (0,05) is the wavelength at which spectr
43、al transmittance equals 0,05 (absolute value of spectral transmittance). 8) Aor Mare the relative transition widths in % defined by 0,8AA(0,05)100(0,05)= or 0,8MM(0,05)100(0,05)= NOTE In earlier literature the designation “Slope” or “%Slope” is used for the above definition. But these designations c
44、an lead to a misunderstanding of the real meaning of the equation, which gives a measure for the width of the wavelength range between the blocking region and the pass region in relation to the spectral position of the filter. The smaller this value is, the steeper is the transmission curve of the f
45、ilter. 9) The blocking range shall be defined according to 6.4.7 a) or 6.4.7 b). NOTE All terms with the exception of Aare additionally used for the characterization of long pass and short pass selecting functions and are given with tolerances. 16DIN ISO 9211-2:2012-11UL34M12ME0,80,50,05AAU10,8(0,05)AA100 (0,05)0,8 AA=(0,05)Figure A.2 Selecting function (example long pass, A, is used) 17DIN ISO 9211-2:2012-11
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