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Products  > Lenses  >  Convex-Concave lenses(BK7)
 
 
Singlets
 
Convex-Concave Lenses (N-BK7)

(Meniscus)

 
 
Specifications
Material: N-BK7
Diameter tolerance: +/-0.1mm
Design wavelength: 546.1nm
Focal tolerance: +/-2%
surface quality : 60-40 S/D
Centration: 3 arcmin
Surtace flatness: λ/4 @633nm
Clear aperture: 90%
Bevel: Protective bevel
 
 
 
 
Item#
Type
Material
Φ(mm)
F(mm)
R1
R2
Tc(mm)
Te(mm)
Fb(mm)
LM01-25-100
Positive
BK7
25.4
100.0
33.72
90.00
4.0
2.5
97.5
LM01-25-125
Positive
BK7
25.4
125.0
38.47
90.00
4.0
2.8
121.8
LM01-25-150
Positive
BK7
25.4
150.0
42.52
90.00
4.0
3.0
146.3
LM01-25-175
Positive
BK7
25.4
175.0
46.05
90.00
4.0
3.1
171.2
LM01-25-200
Positive
BK7
25.4
200.0
49.03
90.00
3.5
2.8
197.0
LM01-25-250
Positive
BK7
25.4
250.0
83.96
235.00
3.5
2.9
246.5
LM01-25-300
Positive
BK7
25.4
300.0
94.08
235.00
3.5
3.0
296.3
LM01-25-500
Positive
BK7
25.4
500.0
123.90
235.00
3.5
3.2
495.4
LM01-25-1K
Positive
BK7
25.4
1000.0
278.34
600.00
3.5
3.3
993.7
LM11-25-100
Negative
BK7
25.4
-100.0
90.0
32.59
3.0
4.5
-99.2
LM11-25-125
Negative
BK7
25.4
-125.0
90.0
37.26
3.0
4.2
-123.7
LM11-25-150
Negative
BK7
25.4
-150.0
90.0
41.42
3.0
4.0
-149.5
LM11-25-175
Negative
BK7
25.4
-175.0
90.0
44.86
3.0
3.8
-174.6
LM11-25-200
Negative
BK7
25.4
-200.0
90.0
47.84
3.0
3.7
-199.6
LM11-25-300
Negative
BK7
25.4
-300.0
235.0
93.13
3.0
3.5
-298.3
LM11-25-500
Negative
BK7
25.4
-500.0
235.0
122.6
3.0
3.3
-496.5
LM11-25-600
Negative
BK7
25.4
-600.0
600.0
204.08
3.0
3.2
-596.8
 
Choose Anti-reflective Coatings
 Single layer MgF2
 Multiple layers AR coating
     R<0.25% @ Laser line             (view the curve)
     R<0.5% @ Broadband Wavelength      (view the curve)
 
        How to order Singlet Lenses?              Example:
Material:   N-BK7
Shape:   Convex-concave
Diameter:   Φ25.40.1mm
Focal, Radius:   F=+100mm, R1=33.72mm, R2=90.0mm
Thickness:   Tc=3.00.1mm
Surface quality:   60-40 S/D
Flatness:   λ/4 @633nm
Centration:   3'
Coating:   AR @430--680nm, R<0.5%, AOI=0
 
   Price on Request
 
   Custom Design
 
   Volume Discount 
 
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