Meniscus Lens

 BRD Optical provides meniscus lens in both positive and negative focal lengths. These lenses are useful when uses of positive meniscus lens with another lenses to increase or decrease the focal length. This lens element configuration does not introduce any additional coma or spherical aberrations

 

Description Of Positive/Negative Meniscus Lens

BRD Optical provides meniscus lens in both positive and negative focal lengths. On the aspect of shape, it can be divided into convex and concave meniscus lens. On the aspect of the effect, it can be divided into diverging and converging meniscus lens.

 

Specifications Of Positive/Negative Meniscus Lens

 

Material

Optical glass/ Fused silica/ sapphire etc.

Diameter

2mm~300mm

Diameter   tolerance

±0.05mm(≤50mm)

±0.1mm(＞50mm)

Focal   length

-50mm~-2000mm

Focal   length tolerance

±0.2%（＜10mm）

±0.5%（＜10mm-1000mm）

±1%（＜＞1000mm）

Center   Thickness

2mm~20mm

Surface   quality

60/40， 40/20，   20/10

Surface   accuracy

λ/2~λ/10@632.8nm，532nm

Clear   Aperture

>85% dig diameter

Centration

<3arc min~ 30arc sec

Coating

As per customer’s request

Material

Diameter
   (mm)

Convex Surface   Radius
   (mm)

Concave
   Surface Radius
   (mm)

Center   Thickness
   (mm)

Focal   Length
   (mm)

H-K9L

7

4.6

-4.60

3

41.4

H-LAF38

8

6.28

-95.10

2.2

8.9

H-ZBAF5

8

9.7

-19.72

2.27

26

H-ZF52A

8

12.05

-9.50

4.2

217

ZnSe

8.6

11.22

-50.58

1.4

8.7

H-ZF62

9

9.911

-38.55

2.1

13.8

H-ZF62

9

10.59

-13.37

7.64

23.8

H-K9L

10

5.19

-500.00

6.2

10.1

JGS1

10.802

7.69

-7.28

3

226.1

H-K9L

11

16.57

-156.37

3

35.5

H-LAF50A

12

13.176

-132.74

3.3

18.7

H-ZK9

12

11.57

-48.93

2.86

23.7

H-ZBAF21

12

15.374

-65.11

3

27

H-ZK3

13

8.088

-21.23

4

23.2

S-LAM7

13

16.94393

-170.00

2.5

24.9

H-ZLAF75A

14

13.804

-51.24

2.4

20.1

H-ZF7LA

14

11.324

-5.50

9.54

49.3

H-K9L

14

10.36

-14.62

5

50.3

H-ZLAF68

14

10.16

-6.87

6.4

282.2

H-ZF6

15

119

-18.95

3.86

30.3

H-LAF3B

15

20.73

-145.88

2.8

32.2

H-K9L

15

9.26

-18.16

3.5

32.3

H-ZLAF55A

15

28.847

-293.95

3

38.1

H-ZK3

15.2

15.3

-231.90

2.8

27.67

LAF10

15.5

24.66

-163.59

2.7

36.52

H-LAF53

16

12.823

-33.57

4.8

25.4

H-ZLAF52

16

18.67

-67.51

3

31.2

H-ZK6

16

13.996

-34.67

3.5

36.4

H-LAK4

16

22.7

-39.63

4

74.8

H-ZLAF68

16

11.251

-7.74

4.8

78.1

ZK9

17

11.695

-11.70

7

81.4

H-ZF13

18

96.302

-26.99

1.5

48.2

H-K9L

18

36.4

-51.52

3.5

222.45

H-LAF10L

18.98

21.38

-32.36

3.6

69.8

H-ZK9A

19

13.895

-29.05

3.6

39.4

ZK7

19.4

17.783

-43.05

3

47.29

H-LAF53

20

16.482

-55.46

4

30.1

H-ZK10

20

18.054

-35.41

5

53.3

H-ZLAF66

20

21.099

-28.09

5

80.3

H-ZK7

20

60.67

-778.00

2.9

106.8

H-BAK4

22

17.497

-114.52

4.7

36.7

H-LAK3

22

21.04

-39.81

3.8

54.7

H-ZBAF3

22

38.9

-498.90

2.7

63.8

H-K9L

22

72.44

-1130.00

5

149.5

H-BAK4

22.5

24.619

-1735.00

5

45

H-ZF7LA

22.6

22.44

-28.91

9.88

74

H-LAF53

23

16.788

-36.22

5

38

H-LAF53

23

16.788

-36.22

5

38

BAF5

23

32.8

-219.10

3

62.3

H-ZK1

23.4

46.48

-176.06

4.56

109.6

H-LAK59

23.48

102.33

-194.98

2.5

308.2

H-ZF7LA

24

17.819

-30.30

10

39.6

H-K9L

25

17.3

-27.00

4.55

80.3

H-K9L

25.4

32.1

-82.20

3.6

100

JGS1

25.4

31

-91.20

4

100

H-K9L

25.4

66.2

-182.20

2.8

200

JGS1

25.4

64.2

-209.80

2.9

200

H-K9L

25.4

100.9

-288.20

2.5

300

ZK9

25.5

22.96

-89.26

4.4

48.59

N-SF6

26

32.15

-176.40

4

43.2

H-LAK3

26

26.79

-127.94

4.2

44.4

H-K9L

26

23.93

-331.70

6

49.58

H-ZK11

27

23.07

-77.04

4.8

49.8

H-LAK1

27

26.24

-74.99

4.1

59.8

H-ZK10

27

38.688

-1541.90

5

63.7

H-ZK10

27

43.279

-311.79

5

80

H-ZK9

28

21.82

-83.35

5.5

46.07

H-ZBAF21

28

37.865

-862.87

3.5

54.7

H-LAF53

30

18.75

-52.24

7.5

35.9

H-K9L

30

18.8

-37.95

5.9

65.7

ZK9

32

23.99

-42.85

8

75.58

H-BAK4

33

23.4

-38.20

6.2

95.14

H-K9L

33

50.35

-85.11

3.1

231.74

H-ZF6

33.5

213.8

-46.03

2.97

71.9

H-ZK98

34

49

-75.00

4.5

213.7

H-ZBAF3

35

38.15

-212.35

10

69.2

H-K9L

36

64.9

-116.41

3.6

277.48

H-ZBAF3

40

52.2

-2148.00

12.1

81.3

H-K9L

40

45.71

-62.37

3.5

309.27

H-K9L

41

78.52

-622.30

4.1

173.57

H-K9L

41

65.77

-111.94

3.7

300.61

F2

42

28.5

-71.30

8.8

71.8

H-ZBAF20

42

32.137

-59.02

14

82.8

H-QK3L

42

35.471

-34.95

14.1

621

H-ZF6

43.2

51.2

-71.28

4

221.7

H-QK3L

44

37.026

-239.30

8

88.7

H-ZF6

45

48.91

-87.90

5

136.7

H-K9L

48.5

72.44

-150.31

4.5

265.57

H-ZK11

49

32.81

-104.23

11.4

70.6

H-K9L

50.5

81.75

-145.88

4

352.64

H-K9L

58

107.15

-477.00

7

265.1

F4

59

1267.1

-266.16

5

544

H-K9L

60

39.72

-142.41

13.8

102

H-K9L

60.274

66.37

-178.49

10.66

198

H-K9L

60.274

122.987

-424.51

10.66

331

H-ZF2

74

65.851

-121.34

9

201

H-ZBAF21

76

157.04

-306.97

6

437

H-K9L

81

203.7

-2773.00

9.96

424.84

H-LAK7

104

181.59

-320.37

12

567.4

H-K9L

106

110.1

-257.80

11.3

362.4



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