 |
 | | (66)
Absorption filters may be neutral or spectrally selective. While spectral characteristics are customarily shown for a 1 mm thickness, the filters themselves are usually made thicker to minimize transmission differences caused by small variations in thickness occurring in manufacture.
Search 66 Items |
|
|
|
|
| | | (7)
Absorption filters may be neutral or spectrally selective. While spectral characteristics are customarily shown for a 1 mm thickness, the filters themselves are usually made thicker to minimize transmission differences caused by small variations in thickness occurring in manufacture.
Search 7 Items |
|
|
|
|
| | | (27)
Absorption filters may be neutral or spectrally selective. While spectral characteristics are customarily shown for a 1 mm thickness, the filters themselves are usually made thicker to minimize transmission differences caused by small variations in thickness occurring in manufacture.
Search 27 Items |
|
|
|
|
| | | (18)
Absorption filters may be neutral or spectrally selective. While spectral characteristics are customarily shown for a 1 mm thickness, the filters themselves are usually made thicker to minimize transmission differences caused by small variations in thickness occurring in manufacture.
Search 18 Items |
|
|
|
|
| | | (4)
Absorption filters may be neutral or spectrally selective. While spectral characteristics are customarily shown for a 1 mm thickness, the filters themselves are usually made thicker to minimize transmission differences caused by small variations in thickness occurring in manufacture. Set of 12 filters are housed in a rugged box and consists of the following densities: 0.1, 0.2, 0.3, 0,4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 2.0, and 3.0.
Search 4 Items |
|
|
|
|
 | | (7)
Made of high polymeric colloid film, the molecules of which are oriented by mechanical stretching. The film is dyed neutral-grey. These filters serve for laboratory and instructional purposes, for photoelasticity, for polarimetry and where high extinction in non-image forming systems is required. These filters are sandwiched in glass.
|
|
|
|
|
 | | Made of high polymeric colloid film, the molecules of which are oriented by mechanical stretching. The film is dyed neutral-grey. These filters serve for laboratory and instructional purposes, for photoelasticity, for polarimetry and where high extinction in non-image forming systems is required. This film is not sandwiched in glass.
Search 1 Items |
|
|
|
|
| | | (7)
These neutral UV polarizing filters provide continuous polarization from 250 to 760nm. Substrates are bubble and stain free polished ultraviolet grade fused silica transmissive to 160nm. Surfaces are lacquered for protection.
|
|
|
|
|
 | | (10)
Search 10 Items |
|
|
|
|
| | | (2)
High quality drawn glass blanks with ground edges.
|
|
|
|
|
 | | (3)
Laser Line Filters are interference type filters coated on 25.4 ± .25mm diameter substrates with a maximum thickness of 8mm. Blocking is 0.01 % from X-ray to 1 micron. Effective refractive index is approximately 2.0. Edges sealed.
|
|
|
|
|
 | | Neutral density filter covering seven steps.
|
|
|
|
|
 | | (7)
Broadband interference filter. Thickness varies.
|
|
|
|
|
| | | (24)
Search 24 Items |
|
|
|
|
 | | (3)
A dielectric narrowband interference filter consists of a system of nonmetallic thin films evaporated onto a substrate. In each individual case the filters exhibit maximum optical transmission in a narrow spectral range. Specify stock #, dash wavelength when ordering, ie. 66.3300-640nm.
|
|
|
|
|
 | | (3)
IR Interference filters are available in wavelengths from 1101 to 1700nm. Nominal peak transmittance 40%. Half-height band width about 50nm. Specify stock # and wavelength when ordering.
|
|
|
|
|
 | | (30)
Coated filters unlike the absorption type get their useful qualities from one or more thin layers deposited on the surface of the substrate. There is frequently another coating or overlay applied to increase durability. Sandwich construction is frequently used which results in large thickness variations making it impossible to specify thickness in all of the columns in this section. (Boxes are available to protect these filters when not in use.)
Search 30 Items |
|
|
|
|
| | | (2)
Coated filters unlike the absorption type get their useful qualities from one or more thin layers deposited on the surface of the substrate. There is frequently another coating or overlay applied to increase durability. Sandwich construction is frequently used which results in large thickness variations making it impossible to specify thickness in all of the columns in this section.
A set consists of 12 filters in a rugged box. Density values are included are 0.01, 0.1, 0.2, 0.3, 0.6, 0.7, 0.8, 1.0, 1.2, 1.3, 1.6 and 2.0.
Densities can be added to obtain values not listed, that is, 0.1 + 0.3 = 0.4 etc.
|
