ZINC SULPHIDE (ZnS) MENISCUS LENS

Material                             : ZnS CVD

Design Wavelength             : 3.5 microns

Focal Length                       : + 2%

Clear Aperture                    : 90% diameter

Edge thickness Variation      : 0.025mm

Diameter Tolerance             : +0, -0.25mm

Bevel                                 : 0.25mm @ 45 degree

Surface Irregularity             : 1/10 Lambda at 3.5 microns

Surface Quality                   :40-20

Diameter(mm)

F#

Effective Focal Length (mm)

Back Focal Length (mm)

Part Number

Price (Uncoated)

12.70

1

12.70

11.12

12135-ZS

$250

 

2

25.40

24.26

12235-ZS

200

3

38.10

37.40

12335-ZS

200

4

50.80

49.53

12435-ZS

200

5

63.50

62.34

12535-ZS

200

 

 

 

 

 

19.05

1

19.05

17.22

19135-ZS

$300

 

2

38.10

36.64

19235-ZS

250

3

57.15

55.59

19335-ZS

250

4

76.20

74.55

19435-ZS

250

5

95.25

93.84

19535-ZS

250

 

 

 

 

 

25.40

1

25.40

23.37

25135-ZS

$325

 

2

50.80

48.53

25235-ZS

300

3

76.20

75.00

25335-ZS

300

4

101.60

99.50

25435-ZS

300

5

127.00

125.18

25535-ZS

300

 

 

 

 

 

38.10

1

38.10

34.34

38135-ZS

$475

 

2

76.20

73.85

38235-ZS

345

3

114.30

112.28

38335-ZS

345

4

152.40

150.31

38435-ZS

345

5

190.50

188.23

38535-ZS

345

 

 

 

 

 

50.80

1

50.80

46.01

50135-ZS

$750

 

2

101.60

98.77

50135-ZS

700

3

152.40

150.43

50135-ZS

700

4

203.20

201.23

50135-ZS

700

5

254.00

252.11

50135-ZS

700