Sheet Polarizers / SPF_NSPFU_SPFN
By the use of dichroic dye film, a good linear polarization can be obtained in a wide range.
The sheet polarizer can be used in the basic polarization experiments which do not require high precision, and adjustment of the light intensity.
Since the polarizing film is sandwiched between the protective glass plate, it hardly gets scratched, and dirt can be wiped off.Because it is mounted in the frame, the handling of the optics and mounting in the holder is easy.
There are products offer for three wavelength ranges, Visible, UV and Near Infrared.
Since the anti-reflection film is applied on both sides the stray light and back reflection to the light source is reduced.
Common Specifications
| Material | Dicrhoic dye film Sheet glass (Quartz glass for NSPFU) Film lamineted between optical glasses |
 |
|---|---|---|
| Coating | Both surfaces: Anti-reflection coating | |
| Material of Metal Frame | Aluminum Finishing: Black anodized |
| Schematic | Outline Drawing |
|---|---|
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| 400 － 700nm | ||||
|---|---|---|---|---|
| Part Number | Wavelength Range | Diameter of Frame φA | Clear Aperture φD | Thickness t |
| SPF-30C-32 | 400 － 700nm | φ30mm | φ24mm | 3mm |
| SPF-50C-32 | 400 － 700nm | φ50mm | φ44mm | 3mm |
| 320 － 400nm | ||||
|---|---|---|---|---|
| Part Number | Wavelength Range | Diameter of Frame φA | Clear Aperture φD | Thickness t |
| NSPFU-30C | 320 － 400nm | φ30mm | φ24mm | 2.4mm |
| 760 － 2000nm | ||||
|---|---|---|---|---|
| Part Number | Wavelength Range | Diameter of Frame φA | Clear Aperture φD | Thickness t |
| SPFN-30C-26 | 760 － 2000nm | φ30mm | φ24mm | 3mm |
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