condensed data for kodak irtran materials

KODAK IRTRAN Infrared Optical Materials

KODAKIRTRANInfrared Optical Materials are designed for thefabrication of lenses, windows, domes, prisms, and filter sub-strates for use from about 2 /-Lmto 14 /-Lm.They are all hot-pressed polycrystalline solids which can be ground andpolished to perform a multitude of infrared tasks.

IRTRAN1 Material, the original, is especially useful for missilewindows and domes and other optical components operatingbetween 2 and 8 tui:

IRTRAN2 Material-workhorse of the family-is useful asspectroscopy cells, lenses, IR optics, windows, and domes, allover the 2 to 14 usi: range. Thin sections have good visibletransmittance.

Characteristics ofKODAKIRTRANInfrared Optical Materials

KODAK Infrared Optical MaterialProperties

IRTRAN 1 IRTRAN 2

PolycrystallinePolycrystallineQ) Type of Material magnesiumQ. zinc sulfide,.. fluorideI-

Low emissivity;Low emissivity;

Special Characteristics high transmittancemoderately highrefractive index

uncoatedfor lenses

Visual AppearanceTransparent Translucenttan to green straw

Iii Useful Transmittance'o 0.5 to 9!J.m 0.4 to 14.5!J.ma at 25'C0

Refractive Index at 25°C1.378 at 1 !J.m to 2.291 at 1 !J.m to

1.227 at 9!J.m 2.151 at 13!J.m

576 Knoop 354 Knoop

Hardness(about Moh 6) (about Moh 4.5)

About as hard as A little hardersoft steel than a penny

Density at 25'C 3.18 g/cm3 4.09 g/cm3

Iii 21,800 psi at 25'C 14,100 psi at 25'C"'(ij Modulus of Rupture 10,000 to 9,000 psi 13,500 psi at 250'C,..s: at 500 to 900'C 11,000 psi at 500'CQ,

Thermal Conductivity 56'C 0.035 54'C 0.037(catories/sec/ cm2l'C/ cm) 179'C 0.026 174'C 0.026

Expansion Coefficient(25 to 2C1rq 11.0 x 10-' 6.9 X 10-'(Iengthllength/'C)

,.. Water Solubility Insoluble Insoluble=;

Transmittance is:; No change in'(ij

Inorganic Immersion transmittancereduced slightly

Q) by HN03, H2SO4,a: or weightIii KOHo·s No change in No change inQ)s: Organic Immersion transmittance or transm ittance or(,,)

weight weight

Diameter (circular flats) 8 inches 8 inches

~ Thickness (circular flats) 1 inch 1 inch:c'"Q.

9-inch 9-inch'" Dome or Lens Capability(,,)

hemispherical hemisphericalQ) (diameter)N dome dome

UiRelative Prices Low Low

'Useful transmittance limits are taken at the wavelengths where transmittance fallsbelow 10 percent for a 2 rum-thick sample.

Incidentally, evaporation-grade IRTRANMaterials are readilyavailable and ideal for coating purposes and at bargain prices.

We urge your consideration of the data presented below thenext time you select an optical material for any infrared appli-cation. These materials do an outstanding job and hold up theirpart of Kodak's reputation as maker of many types of fine in-frared products-photographic films and plates, filters, lenses,laser materials, and IRTRA Materials.

Our people speak infrared fluently. Make them prove it.

Use At High TemperaturesAlllRTRANMaterials are generally usable at temperatures up toat least 300°c' Higher use temperatures are possible dependingon conditions of use-type of IRTRANMaterial, type of atmo-sphere, duration, pressure, tolerable emissivity, etc.

Antireflection and Dielectric CoatingsAll high-index optical materials show higher transmittancewhen an appropriate antireflection coating is applied. Hardmultilayer antireflection coatings can be deposited on one orboth surfaces of IRTRANMaterials for maximum transmittance atselected wavelengths.

Coatings similar to the example shown are available for bothIRTRANMaterials and each coating can be peaked for a specific

. wavelength region (within the normal transmittance range forthat material).

Dielectric coatings can be applied to one or both sides for "-selected reflectivity, generally ranging from 30 to 99 percentwith a tolerance of ±5%.

- Coated Bath Sides-t--.

Coated One Side r-.Uncoated ~

<,1--..

<, <,r-,

KODAK IRTRAN 2 Material I2 mm Thick

100

90

80

V 70Z;£'= 60::;:

~ 50

Z 40V~ 30

20

10

_ 08 9 10 11

WAVELENGTH-pm12 13

Cleavage PlanesBecause KODAKIRTRANMaterials are polycrystalline, they do nothave cleavage planes.

Cold FlowBecause KODAK IRTRANMaterials are polycrystalline, they do notexhibit cold flow.Dielectric ConstantIRTRAN1 Material: 5 at 9.4 GHzIRTRAN2 Material: 8 at 9.0 GHz

~ ~ -J J) -JKODAK IRTRAN Infrared Optical Materials

COMPREHENSIVE PRICE SCHEDULEPRICES ARE EFFECTIVE APRIL 15, 1981,

for Polished Circular FlatsAND SUBJECT TO CHANGE WITHOUT NOTICE

KODAK IRTRAN 2 Material KODAK IRTRAN 2 MaterialThickness-l mm Thickness-2 mm

Diameter Unit Price Per Quantity Listed Diameter Unit Price Per Quantity Listed

Inches mm 1 2 3 4 5 5 7 8 9 10 Inches mm 1 2 3 4 5 5 7 8 9 10

'12 or 12.7 $ 80.50 $ 49.00 $ 40.00 $ 33.00 $ 28.50 $ 25.50 $ 23.00 $ 21.50 $ 20.50 $ 19.50 V2 or 12.7 $ 81.00 s 50.00 $ 40.50 $ 33.50 $ 29.00 $ 26.00 $ 24.00 $ 22.50 $ 22.50 $ 21.50

under under

3/, 19.0 86.00 55.00 45.00 39.00 34.50 31.50 29.50 28.00 27.00 26.00 3/, 19.0 87.50 57.00 48.00 41.00 36.50 33.50 31.50 30.00 30.00 29.00

25.4 91.00 60.50 5150 45.00 40.50 37.50 35.50 34.00 33.00 32.00 1 25.4 93.00 63.50 54.50 48.00 43.50 40.50 38.50 37.00 37.00 36.00

1V. 31.8 102.50 73.50 65.00 58.50 54.00 51.50 49.50 48.00 47.00 46.00 1V4 31.8 107.00 78.50 70.00 63.50 59.00 56.50 54.50 53.00 53.00 52.50

1'12 38.1 106.00 noo 69.00 62.50 58.00 55.50 53.50 52.00 51.00 50.00 1'12 38.1 110.50 82.50 74.50 68.00 64.00 61.00 59.00 58.00 58.00 57.00

13/, 44.5 116.00 88.00 80.50 74.00 70.00 67.00 65.50 64.00 63.00 62.00 13(., 44.5 122.00 95.50 87.50 81.50 77.50 74.50 73.00 71.50 71.50 71.00

2 50.8 124.00 97.00 89.50 83.50 79.00 77.00 75.00 73.50 72.50 71.50 2 50.8 131.50 106.00 98.00 92.50 88.00 85.50 84.00 83.00 83.00 82.00

2'1, 63.5 156.00 132.50 126.00 121.00 116.50 114.50 113.00 111.50 110.00 110.00 2'/2 63.5 168.50 147.00 140.50 136.00 131.50 129.50 128.00 127.50 127.00 127.00

3 76.2 196.00 177.00 171.50 167.50 163.50 161.50 160.50 159.50 159.00 158.00 3 76.2 215.00 198.50 193.50 190.00 186.00 184.00 183.00 182.50 180.50 173.00

KODAK IRTRAN 2 Material KODAK IRTRAN 2 MaterialThickness-3 mm Thickness-6 mm

Diameter Unit Price Per Quantity Listed Diameter Unit Price Per Quantity listed


'12 or 12.7 $ 82.50 $ 51.50 $ 42.50 $ 35.50 $ 31.00 $ 28.00 $ 27.50 $ 26.00 $ 24.50 $ 23.50 '12 or 12.7 $ 86.50 $ 56.00 $ 47.50 $ 40.50 $ 38.00 $ 34.50 $ 34.00 s 32.00 $ 31.50 $ 30.00under under

3(., 19.0 90.50 60.50 51.50 45.00 40.50 37.50 37.00 35.50 34.00 33.00 3/, 19.0 100.00 70.50 62.50 55.50 53.50 50.00 49.50 47.50 47.50 46.0025.4 98.00 68.50 60.00 53.50 49.00 46.00 46.00 44.50 43.00 42.00 1 25.4 112.00 84.00 76.00 69.50 67.50 64.00 63.50 62.00 61.50 60.50

1% 31.8 115.50 88.00 80.00 73.50 69.00 66.50 66.50 65.00 63.50 62.50 lV, 31.8 140.00 115.00 108.00 102.50 100.00 97.00 97.00 95.50 95.50 94.00

1'12 38.1 120.50 93.50 85.50 79.50 75.00 72.50 72.50 71.00 69.50 68.50 lV, 38.1 148.00 124.00 117.00 111.50 109.50 106.50 106.50 105.00 105.00 103.5013(., 44.5 135.00 109.50 102.50 96.50 92.50 90.00 90.00 88.50 87.50 86.50 13/. 44.5 172.00 150.50 144.50 139.50 137.50 135.00 135.00 133.50 133.50 132.50

2 50.8 147.00 123.00 116.00 110.50 106.00 104.00 104.00 102.50 101.50 100.50 2 50.8 191.00 171.50 166.50 162.00 160.00 157.50 157.50 156.50 156.50 155.50

2'12 63.5 194.50 175.50 170.00 165.50 161.50 159.50 160.50 158.50 158.50 157.50 2'12 63.5 267.50 256.50 254.00 251.50 250.00 248.00 241.00 229.50 220.50 213.50

76.2 253.50 241.00 237.50 235.00 231.00 229.50 228.00 219.50 209.50 201.00 3 76.2 364.00 363.50 362.00 360.00 352.50 329.00 312.00 299.00 290.00 282.00

Additional Information (IRTRAN 2 Material Only) KODAK IRTRAN 2 Lenses KODAK IRTRAN Infrared Optical Materials 3, 4

Antireflection coatings on both sides are priced at $490 for Prices are for quantities indicated. Prices for greater quan- These materials are not available as polished windows butone bell jar lot. Quantities of components which can be tities will be quoted upon request. are available as evaporative grade material for coating pur-coated in one bell jar lot will be provided upon request. Lens No. Quantity Range Price Each poses. Quotation and availability will be supplied on request.

IR-100 1-7 $ 303.00IR-101 1-3 800.00IR-200 1-4 672.00IR-201 1-5 1,044.00IR-301 1-8 1,183.00

KODAK and IATRAN are trademarks.November 1981

)KODAK IRTRAN Infrared Optical Materials MI

COMPREHENSIVE PRICE SCHEDULE U-71PPRICES ARE EFFECTIVE APRIL 15,1981,AND SUBJECT TO CHANGE WITHOUT NOTICE for Polished Circular Flats


Diameter Unit Price Per Quantity listed Diameter Unit Price Per Quantity listed


V, or 12.7 s 88.00 $ 54.50 $ 44.50 $ 37.00 $ 32.00 $ 29.00 $ 26.50 s 25.00 $ 23.50 s 22.50 V, or 12.7 s 90.00 $ 56.00 $ 46.00 $ 38.50 s 33.50 s 30.50 $ 28.50 $ 26.50 s 26.50 s 25.50under under

3/, 19.0 96.00 63.00 53.00 46.00 4100 40.00 36.00 34.00 33.00 32.00 3(, 19.0 99.00 66.50 57.00 50.00 45.00 42.00 39.50 38.00 38.00 37.0025.4 103.00 7100 61.50 54.50 49.50 46.50 44.50 42.50 41.50 40.50 1 25.4 108.00 76.50 67.00 60.00 55.00 52.00 50.00 48.50 48.50 48.00

lV, 31.8 119.50 89.50 80.00 73.50 69.00 66.00 64.00 62.50 61.00 60.00 1'1, 31.8 128.50 99.00 90.00 83.50 79.00 76.00 74.00 73.00 72.50 12.00

lV, 38.1 124.50 94.50 85.50 79.00 74.50 71.50 69.50 68.00 67.00 66.00 lV, 38.1 134.00 105.50 9700 90.50 86.00 83.00 81.50 80.00 80.00 79.00

1'1. 44.5 138.50 110.50 102.00 95.50 91.00 88.50 86.50 85.00 84.00 83.00 13/. 44.5 151.50 124.50 116.50 111.00 106.00 103.50 102.50 101.00 100.50 100.002 50.8 150.00 123.00 115.00 109.00 104.50 101.50 100.00 98.50 97.50 96.50 2 50.8 165.50 140.00 132.50 127.00 122.50 120.00 118.50 117.50 117.00 117.002V, 63.5 195.50 173.50 166.50 162.00 157.50 155.50 154.00 153.00 152.00 151.50 2V, 63.5 221.50 202.00 196.50 192.00 188.00 186.00 185.00 184.00 182.50 174.50

3 76.2 252.50 236.50 231.50 228.00 225.50 222.50 221.50 213.00 203.00 196.00 3 76.2 291.00 280.00 276.00 273.50 270.00 269.00 254.00 242.50 231.50 224.50


Diameter Unit Price Per Quantity listed Diameter Unit Price Per Quantity listed

Inches mm 1 2 3 4 5 6 7 8 9 10 tnches mm 1 2 3 4 5 6 7 8 9 10

V, or 12.7 $ 92.50 $ 59.00 $ 49.00 $ 42.00 $ 37.00 $ 34.00 $ 33.50 $ 31.50 $ 30.00 $ 29.00 V, or 12.7 $ 99.50 $ 67.00 $ 58.00 s 50.50 $ 48.00 $ 44.50 $ 43.50 s 41.50 $ 41.50 $ 40.00under under

3/. 19.0 105.50 73.50 64.00 57.00 52.00 49.50 49.00 47.00 45.50 44.50 3f4 19.0 120.50 90.50 82.50 75.50 73.50 69.50 69.50 67.00 67.00 65.5025.4 117.00 86.50 77.50 70.50 66.00 63.00 63.00 61.00 59.50 58.50 1 25.4 140.00 112.00 104.50 98.00 96.00 92.50 92.00 90.00 90.00 89.00

1% 31.8 150.50 117.00 108.50 102.50 98.00 95.50 95.00 94.00 92.50 91.50 lV. 31.8 185.50 162.50 156.50 151.00 149.00 146.00 146.00 144.50 144.50 143.50lV, 38.1 152.50 125.50 117.50 111.50 107.00 104.50 104.50 103.00 102.00 101.00 1'1, 38.1 198.50 177.00 171.00 166.00 164.00 161.50 161.50 160.00 160.00 159.001'1. 44.5 176.00 151.50 144.50 139.00 134.50 132.50 132.00 131.50 130.50 129.00 1'1. 44.5 237.50 220.00 215.50 211.50 210.00 207.50 207.50 204.50 194.50 187.50

50.8 194.50 172.50 166.00 161.00 156.50 155.00 154.50 153.50 153.00 152.00 2 50.8 268.50 254.50 251.00 248.00 246.50 244.00 240.00 228.00 219.00 209.502V, 63.5 270.00 256.00 252.00 249.00 245.00 243.00 240.00 227.50 217.50 209.00 2V, 63.5 393.50 393.00 392.50 392.00 370.00 347.50 329.50 317.50 309.00 301.50

3 76.2 364.00 360.50 359.50 358.50 345.50 322.50 310.50 297.00 286.50 278.50 3 76.2 549.00 538.00 524.00 516.50 483.50 458.50 443.00 431.50 423.00 413.00

General Information Applicable to KODAK IRTRAN Infrared Optical Materials 1 and 2THICKNESS TOLERANCES

For more information or to place an order1. Prices per circu lar flat normally are net diameters (standard thickness) generallyFOB Rochester, N. Y., and subject to appli- are priced the same or less than the next 1 mm 2 mm write or call:cable state and local taxes. larger diameter shown. (±0.1 mm) (±0.1 mm) SPECIAL PRODUCTS SALES

2. Intermediate diameters, special shapes, 4. Prices are based on circular flats made or or Kodak Apparatus Divisionlarger quantities, and tolerances other with diameter tolerances of ±0.005 inch, 0.039 in. 0.079 in.than those shown in Item 4 are available on and in millimetre thicknesses with toler- (±0.004 in.) (±0.004 in.) Eastman Kodak Companya special quotation-preferably to your ances shown. Surfaces are finished to Rochester, N.Y. 14650submitted raw drawing. commercial plate-glass finish equivalent to 3 mm 6 mm Telephone (716) 726-3579 or 726-3170

3. Intermediate thicknesses generally are a flatness of 5 wavelengths per inch, with (+0.2 mm, -0) (+0.2 mm, -0)faces parallel within 5 minutes of arc. A or or

substantially higher priced than the nextvery small protective bevel will be applied 0.118 in. 0.236 in.

greater standard thickness. Intermediateto all edges unless otherwise specified. (+0.008 in., -0) (+0.008 in., -0)

Dispersion

2.4 --f-_ ---- - - JRTRAIN 21

- - -- -

IRTRAN 1 r---- JFH

?i~ 2.2wu~ 2.0~~ 1.8Vl

~ 1.6'"•...

1.4

1.22 4 6 8 10 12

WAVELENGTH IN MICROMETRES (/Lm)14

Windows

KODAKIRTRANMaterials are ideal for windows in spectroscopyand many other applications. When pressure is a factor to con-sider, this formula can be used for calculating the minimumwindow thickness for pressure differentials on the order ofseveral atmospheres:y1.1 pr2

t = Sa

t = minimumwindowthicknessininchesp = unit pressure in lbs/in?r = radius of unsupported area

Sa = allowable stress in lbs/in"(Suggestion: Use modulus of rupturedivided by an appropriate safety fac-tor, say 4.)

Minimum Window Thickness

(1 atmosphere pressure difference at 25°C, factor of safety = 4)

Window MinimumWindowThickness in InchesDiameter KODAKInfrared Optical Material(inches) IRTRAN1 IRTRAN2

1 0.027 0.034

1V2 0.041 0.051

2 0.054 0.068

3 0.082 0.10

4 0.11 0.14

5 0.14 0.17

6 0.17 0.21

In suggesting the above design parameters, factors such asmounting rigidity or resiliency, mounting surface roughness,clamping loads, momentary pressure surges, combinations ofpressure and thermal shock, impact, vibration, and so forth havenot been taken into account. For this reason our thickness sug-gestions cannot be taken as a fail-safe guarantee under actualoperating conditions.

LensesThe following IRTRAN2 single-element infrared-transmittinglenses are usually available as stock items.

Transmittance

ALL SAMPLES 2 mm THICK-UNCOATED....• ...- <,. .¥- --i-- -- - '\--- -- -- - -...•

!\'1;... ',~

.p &-·'V- ,'1..-

\ "'-\~ JFH

100Ew 80u~ 60•...•...~ 40V)

Z« 20ee•...

2 6 8 10 12 14WAVElENGTH IN MICROMETRES (/Lm)

4 16

Refractive Index

Wavelength KODAKInfrared Wavelength KODAKInfraredin Optical Material in Optical Material

Micrometres IRTRAN 1 IRTRAN 2 Micrometres IRTRAN 1 IRTRAN 2

1.0000 1.3778 2.2907 6.0000 1.3179 2.2381

1.2500 1.3763 2.2777 6.2500 1.3122 22363

1.5000 1.3749 2.2706 6.5000 1.3063 2.2344

1.7500 1.3735 2.2662 6.7500 1.3000 2.2324

2.0000 1.3720 2.2631 7.0000 1.2934 2.2304

2.2500 1.3702 2.2608 72500 1.2865 2.2282

2.5000 1.3683 2.2589 7.5000 1.2792 2.2260

2.7500 1.3663 22573 7.7500 12715 2.2237

3.0000 1.3640 22558 8.0000 1.2634 2.2213

3.2500 1.3614 2.2544 8.2500 1.2549 2.2188

3.5000 1.3587 2.2531 8.5000 1.2460 2.2162

3.7500 1.3558 2.2518 8.7500 1.2367 2.2135

4.0000 1.3526 2.2504 9.0000 1.2269 2.2107

4.2500 1.3492 2.2491 9.2500 2.2078

4.5000 1.3455 2.2477 9.5000 2.2048

4.7500 1.3416 2.2462 9.7500 22018

5.0000 1.3374 2.2447 10.0000 2.1986

5.2500 1.3329 2.2432 11.0000 2.1846

5.5000 1.3282 2.2416 12.0000 2.1688

5.7500 1.3232 2.2399 13.0000 2.1508

Index of refraction values were experimentally determined atselected wavelengths between 1 and 10 tat: Coefficients of aninterpolation formula were established and reduced by leastsquares methods, and the values computed. All values beyond10 f.Lm are extrapolated.

Outside Thicknesslens Focal Relative Diameter (mm) Measured Blur

Number length Aperture lens Type (mm) Center Edge Circle on Axis (mm)

IR-100 1 in. (/1.0 Meniscus 28.6 5.0 1.5 0.36 @ 2-4.5 /Lm

IR-101 1 in. (/1.0 Meniscus with aspheric 28.6 5.28 1.9 0.15 @ 2-4.5 /Lmcurve on negative side 0.09 @ 3.5-4.5 /Lm

IR-200 2 in. (/1.0 Meniscus 54.0 8.0 1.5 0.61 @ 2-4.5 f.Lm

IR-201 2 in. f/1.0 Meniscus with aspheric 50.8 9.1 3.0 0.20 @ 2-4.5 f.Lmcurve on negative side

IR-301 3 in. f/1.0 Meniscus with aspheric 76.2 10.4 2.0 0.38 @ 2-4.5 /Lmcurve on negative side

Custom single-element lenses and element-componentsfor multi-element lenses can be supplied to meet customer

needs. Specify focal length, outsidediameter, aperture, intended wave-length of use, and type of IRTRANMa-terial. Kodak will readily computespherical radii for single-elementlenses based on simple thin-lens for-mulas. Kodak is not in the position tocompute multi-element lenses norwarrant performance values (such asblur circle) for any custom lens. Pricesand delivery on custom lenses canusually be quoted upon written ortelephone request.

~-.,-- ~':" ~/)././_ .tJ£v,/f:T f!t-G-.E/'<

YAY iN OEHME ,

E'K/N ~i'6,t

e Eastman Kodak Company, 1981

For more information or to place an order write to:SPECIAL PRODUCTS SALES

Kodak Apparatus DivisionEastman Kodak Company' Rochester, N,Y, 14650

Telephone (716) 726-3579 or 726-3170

Additional data is included in the booklet, KODAK IRTRANInfrared Optical Materials, KODAKPublication No, U-72, Asingle copy is available free from the above address,

Condensed Data forKODAK IRTRAN Infrared Optical MaterialsKODAK Pamphlet No, U-71

11-81-h Major RevisionPrinted in the United States of America

Kodak and Irtran are trademarks,

condensed data for kodak irtran materials

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