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Free-form manufacturing produces a highly customized and highly accurate finished lens. The starting point for free-form manufacturing starts with the highly sophisticated software. This software allows the input of prescription, frame fitting details, and position of wear to create a truly customized lens that is not possible with traditional lenses. This software sends data to the free-form generators in the form of point files. These point files are mathematical data files that guide the free-form generator.

The generating creates the prescription, add power, base curve, and corridor position of the finished lens. The generator uses a single point cutter to produce the lenses. This cutting is done on both the front and back of a lens.

 

 

 

 

 

 

 

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Add Range
+.75 to+3.50
In .25 steps

Lens Material

Sphere Range

Cylinder Range

Index of
Refraction

Abbe
Value

Specific
Gravity

Standard
Index

Standard Resin CR-39

+4.00 to -8.00

Limited to a combined sph/cly
Power of -8.00

1.499

58

1.32 gm/cm

Trivex*

+4.50 to -10.00

Limited to a combined sph/cly
Power of -10.00

1.53

44

1.11 gm/cm

Thinner, Lighter
Lenses

Poly

+5.00 to -10.00

Limited to a combined sph/cly
Power of -10.00

1.586

28

1.20 gm/cm

1.60*

 +6.00 to -11.00

Limited to a combined sph/cly
Power of -11.00

1.594

42

1.30 gm/cm

1.67*

+6.00 to -12.00

Limited to a combined sph/cly
Power of -12.00

1.666

32

1.34 gm/cm

1.74* coming soon

+9.00 to -13.25

Limited to a combined sph/cly
Power of -13.25

1.738

33

1.47 gm/cm

Polarized

Standard Resin CR-39  Grey and Brown

+4.00 to -6.75

Limited to a combined sph/cly
Power of -6.75

1.499

58

1.32 gm/cm

Poly*Grey, Brown & G-15

+5.00 to -10.00

Limited to a combined sph/cly
Power of -10.00

1.586

28

1.20 gm/cm

Trivex* Grey and Brown

+4.50 to -10.00

Limited to a combined sph/cly
Power of -10.00

1.53

44

1.11 gm/cm

1.67* Grey and Brown

+7.50 to -12.00

Limited to a combined sph/cly
Power of -12.00

1.666

32

1.34 gm/cm

Photochromic/
Polarized

Trivex* Grey and Brown

+4.50 to -10.00

Limited to a combined sph/cly
Power of –10.00

1.53

44

1.11 gm/cm

Drivewear CR-39

+4.00 to -8.00

Limited to a combined sph/cly
Power of -8.00

1.50

58

1.27 gm/cm

Drivewear* Poly

+5.00 to -10.00

Limited to a combined sph/cly
Power of -10.00

1.586

28

1.20 gm/cm

Fixed Tints

Trivex* Grey, Brown & Green

+4.50 to -10.00

Limited to a combined sph/cly
Power of –10.00

1.53

44

1.11 gm/cm

Trivex w/mirror *
Gold & Silver

+4.50 to -10.00

Limited to a combined sph/cly
Power of -10.00

1.53

44

1.19 gm/cm

Photochromic

Instashades 1.50* Grey

+4.00 to -8.00

Limited to a combined sph/cly
Power of -8.00

1.508

52

1.19 gm/cm

Transitions 1.50Grey & Brown

+4.00 to -8.00

Limited to a combined sph/cly
Power of -8.00

1.497

57

1.27 gm/cm

Transitions Polycarb*
Grey, Brown & XTra Active

+5.00 to -10.00

Limited to a combined sph/cly
Power of -10.00

1.586

28

1.20 gm/cm

Transitions Trivex*
Grey, Brown, XTra Active

+4.50 to -10.00

Limited to a combined sph/cly
Power of -10.00

1.53

44

1.11 gm/cm

Photochromic  Trivex *
Grey, Brown, Copper and  Yellow

+4.50 to -10.00

Limited to a combined sph/cly
Power of -10.00

1.53

44

1.11 gm/cm

Transitions 1.60*Grey and Brown

+6.00 to -11.00

Limited to a combined sph/cly
Power of -11.00

1.596

42

1.30 gm/cm

Transitions 1.67*Grey & XTra Active

+6.00 to -12.00

Limited to a combined sph/cly
Power of -12.00

1.666

32

1.34 gm/cm