Plano concave lenses are manufactured with one concave surface and one plane surface. They have negative focal lengths. These lenses are often used to expand light or to increase focal lengths in existing systems.
Focal Length£º n£ºrefractive index
R£ºradius curvature
 
 
Material: BK7A
Focal Length Tolerance: ¡À0.5%
Diameter Tolerance: +0/-0.2mm
Thickness Tolerance: ¡À0.2mm
Surface Flatness: ¦Ë/10
Centration Error: <3 arcmin
Surface Quality:

20/10

Clear Aperture: >90% of central diameter
Coating:

Optional

 

Product Number

¦Õ

f' 587.6

f'b

tc

te

TPC-06B-009

6.0

-9.0

-10.3

2.0

3.1

TPC-08B-015

8.0

-15.0

-16.3

2.0

3.1

TPC-10B-015

10.0

-15.0

-16.3

2.0

3.8

TPC-12.7B-30

12.7

-29.5

-30.8

2.0

3.4

TPC-12.7B-050

12.7

-50.0

-51.3

2.0

2.8

TPC-12.7B-070

12.7

-70.0

-71.3

2.0

2.6

TPC-12.7B-100

12.7

-100.0

-101.3

2.0

2.4

TPC-12.7B-150

12.7

-150.0

-151.3

2.0

2.3

TPC-12.7B-400

12.7

-400.0

-401.3

2.0

2.1

TPC-12.7B-600

12.7

-600.0

-601.3

2.0

2.1

TPC-12.7B-980

12.7

-980.0

-981.3

2.0

2.0

TPC-20B-030

20.0

-29.5

-31.1

2.5

6.2

TPC-20B-100

20.0

-100.0

-101.6

2.5

3.5

TPC-20B-150

20.0

-150.0

-151.6

2.5

3.1

TPC-20B-200

20.0

-200.0

-201.6

2.5

3.0

TPC-20B-400

20.0

-400.0

-401.6

2.5

2.7

TPC-20B-600

20.0

-600.0

-601.6

2.5

2.7

TPC-20B-980

20.0

-980.0

-981.6

2.5

2.6

TPC-25.4B-050

25.4

-50.0

-52.0

3.0

6.3

TPC-25.4B-070

25.4

-70.0

-72.0

3.0

5.3

TPC-25.4B-100

25.4

-100.0

-102.0

3.0

4.6

TPC-25.4B-150

25.4

-150.0

-152.0

3.0

4.0

TPC-25.4B-200

25.4

-200.0

-202.0

3.0

3.8

TPC-25.4B-400

25.4

-400.0

-402.0

3.0

3.4

TPC-25.4B-600

25.4

-600.0

-602.0

3.0

3.3

TPC-25.4B-980

25.4

-980.0

-982.0

3.0

3.2

TPC-38.1B-070

38.1

-70.0

-72.3

3.5

8.9

TPC-38.1B-100

38.1

-100.0

-102.3

3.5

7.1

TPC-38.1B-150

38.1

-150.0

-152.3

3.5

5.9

TPC-38.1B-200

38.1

-200.0

-202.3

3.5

5.3

TPC-38.1B-400

38.1

-400.0

-402.3

3.5

4.4

TPC-38.1B-600

38.1

-600.0

-602.3

3.5

4.1

TPC-38.1B-980

38.1

-980.0

-982.3

3.5

3.9

TPC-50.8B-100

50.8

-100.0

-102.6

4.0

10.7

TPC-50.8B-150

50.8

-150.0

-152.6

4.0

8.3

TPC-50.8B-200

50.8

-200.0

-202.6

4.0

7.2

TPC-50.8B-400

50.8

-400.0

-402.6

4.0

5.6

TPC-50.8B-600

50.8

-600.0

-602.6

4.0

5.0

TPC-50.8B-980

50.8

-980.0

-982.6

4.0

4.6

 
¡¤All dimensions are in mm unless otherwise specified .
¡¤Other sizes and AR coating are available upon request.
¡¤The material of UV Fused Silica is available.