Continuously Variable Filters

Continuously Variable Filters
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  • Continuously Variable Filters
  • Continuously Variable Filters

Reference number: DOT-Variable-Filters

Powerful continuously tunable filters from Delta Optical Thin Film for spectroscopy, characterized by high transmission and high edge steepness.

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Description

Delta Optical Thin Film's continuously tunable filters offer the highest level of quality by introducing a new, powerful filter technology.

The portfolio includes Linear Variable Long Wave Pass Filter (LVLWP), Linear Variable Short Wave Pass Filter (LVSWP) and Linear Variable Dichroic Filter.

Each of the filters can be used separately. The combination of LVLWP and LVSWP enables the design of bandpass filters that can be continuously tuned at center wavelengths from 320 nm to 850 nm with the added benefit of an tuneable bandwidth.
As LVF monochromator the filters are used in fluorescence microplate readers.

The filters are characterized by a high transmission and edge steepness. In addition, they also offer blocking better than OD3 over the entire reflection range. It is possible to increase the blocking beyond OD5 by connecting another filter in series.

The filters are made of quartz substrates to ensure minimum autofluorescence and a high damage threshold. Ultra Hard Coatings (UHC) are used as coatings.

The main field of application of the continuously tunable filters is spectroscopy.

Filter

product code

bandwidth (in nm)

size (in mm)

LVSWP

DOT-LF102474

310 - 850

60 x 15 x 3

LVLWP

DOT-LF102475

310 - 850

60 x 15 x 3

CVSWP

DOT-LF104555

385 - 1.000

110 x 17 x 2

CVLWP

DOT-LF104550

385 - 1.000

110 x 17 x 2

CVSWP

DOT-LF104440

385 - 1.000

110 x 8.25 x 2

CVLWP

DOT-LF104419

395 - 815

110 x 8.25 x 2

LVSWP

DOT-LF104557

365 - 785

88 x 11 x 2

LVSWP

DOT-LF104558

395 - 815

88 x 11 x 2

LVSWP

DOT-LF103722

365 - 785

88 x 9.3 x 2

LVLWP

DOT-LF103721

800-1100

88 x 9.3 x 2

LVSWP

DOT-LF104559

410 - 652.5

82.4 x 26.5 x 0.9

LVLWP DOT-LF104562 410 - 652.5 82.4 x 26.5 x 0.9
LVSWP DOT-LF104561 652.5 - 895  82.4 x 26.5 x 0.9
LVLWP DOT-LF104560 652.5 - 895 82.4 x 26.5 x 0.9
Lin Var BP DOT-LF103924 800 - 1088 26 x 36 x 1
LVF UNLVVISBP DOT-LF102773 400 - 700 60 x 25 x 2.5
LVF UNLVVISBP  DOT-LF103012 400 - 700 60 x 12 x 2.5
Lin Var BP DOT-LF103729 400 - 700 wideband 60 x 25 x 2.5
Lin Var BP DOT-LF102499 400 - 700 wideband 60 x 12 x 2.5
LV Dichroic DOT-LF102227 310 - 850 60 x 55 x 3