Lens
OD (mm)
EFL (mm)
NA
BFL (mm)
Replacement for:
Cover Glass Thickness
3.00
2.00
0.50
1.10
LPT 35X150
0.250
6.33
4.00
0.60
2.40
LPT 35X67X
0.250
6.00
4.56
0.55
2.90
Kodak A390
0.275
6.33
4.56
0.55
2.90
LPT 35X230
0.275
4.71
6.25
0.30
5.00
LPT 35X170
0.300
7.00
6.25
0.40
5.00
LPT 35X110
0.300
6.50
7.50
0.30
6.00
Kodak A375
0.275
9.95
8.00
0.50
5.90
LPT 35X240
0.250
6.40
10.00
0.28
8.50
n/a
0.300
7.20
11.00
0.30
9.70
LPT 35X220
0.275
7.20
11.00
0.30
9.70
Kodak A397
0.275
6.40
12.50
0.22
10.70
n/a
0.300

Long Focal Length Aspheres

Lens #
OD(mm)
EFL(mm)

NA
BFL(mm)
Clear
Aperture(mm)
Cover Glass Thickness(mm)
P9515
9.50
15.00
0.24
13.0
7.60
0.30
P1221
12.50
21.00
0.28

19.0
11.00
0.30
P1322
13.00
23.00
0.24
21.0
12.50
0.30

-Any above lenses may be edged to a smaller diameter on a special order basis. Minimum order quantites apply.

-All of the listed lenses are unmounted. Lenses can be suppliedin metal housings upon request.

-Click here for the Standard "A" and "B" BBAR coating curves."C",custom VAR, BBAR and SLAR coatings also available onspecial order basis. The L671-Z ships with the X coating (blue shifted A coating) standard.

-RMS wavefront error <0.05 waves; L671 RMS wave front error < 0.06 waves @ 408 nm.

Molding Guidelines

The hard molds offer the most design flexibility, as they allow a wider range of glass types to be used. The molding process has a slightly different anneal cycle than the bulk glass; as-molded refractive index data are available in the Archer glass catalog for OpTaliX, ZEMAX, CODE V and OSLO.

Acceptable Lens Shapes

Most bi-convex, plano-convex and mild mensicus shapes.

Unacceptable Lens Shapes

Bi-concave lenses, steep meniscus lenses, and lenses with severe features (e.g. a bump on a convex surface).


Design Guidelines

-Generally, the edge thickness=0.5 to 2.0 x center thickness.
-The volume of the lens (including flanges), V = 4/3pr3, where r is the smallest local convex radius.
-The design should be able to tolerate 0.010 mm of lateral shear between surfaces plus 5 microns TIR of wedge (across the part without considering the lateral shear) to be considered robust