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Key to optical parameters: (all units in millimeters unless otherwise stated)
| l |
|
Wavelength of incident light in microns (>0.55 mm) |
| L1 |
|
Object distance (from object point to lens' front surface) |
| L2 |
|
Image distance (from lens' back surface to image point) |
| N0 |
|
On-axis refractive index of SELFOC® lens |
| ÖA |
|
Index gradient constant (mm-1) |
| Z |
|
Lens length |
| EFL |
|
Effective focal length (from rear primary plane to rear focal plane) |
| BFL |
|
Back focal length (from rear lens surface to rear focal plane) |
| MT |
|
Transverse magnification |
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| q+ |
|
Maximum angle from object above axis |
| q- |
|
Maximum angle from object below axis |
| Hm |
|
Maximum object height |
| Ls |
|
Distance from lens surface to aperture stop |
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Steps for using the SELFOC® MICROLENS TABLES:
| 1. | If the object distance for your application is known, click the sheet tab entitled "Obj. Distance". If the desired magnification is known, click the sheet tab entitled "Magnification". |
| 2. | Enter the required data in the colored data cells. As you enter numeric values, the SELFOC® lens parameters such as N0, ÖA, and EFL will be recalculated in the lens table. |
| 3. | Adjust the Pitch in small increments and observe how the optical parameters are altered. Recall that 2pP=ZÖA). |
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