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MidOpt AC Series – Acyrlic Longpass Filter AC380

Uniforce Product

Salient Features

 A/R Acrylic Protective Window

AC380 is an abrasion, scratch, breakage and solvent resistant acrylic protective window made to withtand harsh environments are are half the wieght of glass windows.

New technology has made windows that are 50 times more scratch resistant and impervious to all types of solvents and chemicals including: acetone and MEK.

It blocks almost all UV light while averaging greater than 98% transmission in the 450-700nm visible spectrum. This acrylic protective window is a highly effective yet economical solution for covering camera enclosures and on-axis lighting. Available from stock in 2mm and 3mm thicknesses, custom sizes and shapes can be quickly laser cut in house. Often used in FDA applications.

AC380 A/R Acrylic Protective Window MidOpt_AC380_Trans_Graphic

  • Useful Range : 450-850nm
  • Cut-on Wavelength 50% T : 380nm
  • Tolerance : +/- 10nm
  • Minimum Peak Transmission : ≥95%
  • Surface Quality : 40/20

The performance of a filter is based on what happens to light passing through the filter. The apparent color of light reflected off the surface is not a reliable way to judge the filter’s capabilities. Batch-to-batch difference in the apparent color of the coatings or filter substrates can often be easily seen when looking at two examples of the same filter type. The color of the coating does not indicate a disparity in performance.

Transmission DataStablEdgeAvailable MountsLearn MoreQuote Request

AC380 Transmission Data

wavelength transmission wavelength transmission
(nm) (%) (nm) (%)
1100 81.84 720 96.1
1090 82.37 710 96.96
1080 82.88 700 97.56
1070 83.23 690 97.83
1060 83.48 680 97.84
1050 83.59 670 98.05
1040 83.56 660 98.47
1030 83.45 650 98.94
1020 83.32 640 98.98
1010 83.19 630 98.91
1000 83.19 620 98.99
990 83.49 610 99.21
980 83.95 600 99.12
970 84.63 590 98.87
960 85.35 580 98.86
950 86.03 570 98.9
940 86.57 560 98.59
930 86.88 550 98.29
920 86.87 540 98.41
910 86.59 530 98.32
900 86.33 520 97.96
890 86.47 510 98.11
880 87.09 500 98.17
870 88.32 490 97.96
860 89.4 480 98.22
850 90.16 470 97.98
840 90.77 460 97.94
830 91.15 450 97.33
820 91.37 440 96.36
810 91.54 430 94.52
800 91.85 420 91.25
790 92.45 410 86.67
780 93.24 400 80.01
770 94.08 390 69.07
760 94.72 380 48.4
750 95.16 370 20.82
740 95.21 360 6.25
730 95.36 350 2.08

midopt_stabledge-filter-ex

Click Pic to Enlarge

MidOpt StablEDGE™ optical filters are specifically designed to be less  susceptible to effects from angular shifting seen when optical filters are placed in front of short focal length (<12 mm) camera lenses.
StablEDGE™ filters take advantage of absorptive filter glass to form the leading
edge of the filter passband.This assures no shifting in this region, even when the
lens FOV exceeds 100°.StablEDGE™ designs are  less angle-of-incidence sensitive, inherently more rugged, and are environmentally stable.

midopt_stableEdge_logo

Available Mounts

Threaded Mount

midopt-threaded-mount

  • Designed for lenses with filter threads, a variety of filter types and stock threaded sizes are available: M13.25-M105
  • Larger sizes, 62mm to 105mm, are made to order and are not returnable
  • Custom thread sizes are available upon request.
  • Threaded mounts are available as black anodized aluminum rings. Rotating mounts with locking thumb screws are generally provided.

Ordering Example:

  • Filter: BP470
  • Mount Size: M27

Correct Part# is:

  • BP470-27

Threaded Mount Technical Drawing PDF

Slip Mount

  • Designed for varifocal lenses, wide angle lenses and lenses without filter threads
  • Accommodates standard threaded mounts
  • Low profile and oversize diameter design prevents wide angle lens vignetting
  • Locking set screws and a wrench are provided to secure the adapter to the lens
  • Many varifocal and shorter fixed focal length (wide angle) lenses are not supplied with filter threads due to the presence of a protruding, strongly convex lens element. Our slip mount adapters allow standard threaded filters to be fitted securely to these and a large variety of lenses that do not have filter threads provided.

Ordering Example:

  • Filter: BP470
  • Outside Diameter of Lens in mm: 43mm

Correct Part# is:

  • BP470-S43

Slip Mount Technical Drawing PDF

C/CS Camera Mount

midopt-c-mount

  • Designed to thread directly into any C/CS mount camera between the lens and sensor
  • Wrenching slots aid in threading the filter into the camera body. A wrench is supplied with each filter.
  • Helpful in applications with space constraints
  • Can be used with wide angle lenses that do not accept filters at the front end to prevent vignetting
  • C/CS mount filters are available in a standard 1mm thickness

Ordering Example: 

  • Filter: BP470
  • Mount Size: 25.4

Correct Part# is:

  • BP470-25.4

C/CS Camera Mount Technical Drawing PDF

 Unmounted  & Custom Size

midopt-unmounted

  • Any MidOpt filter type can be provided as an Unmounted filter
  • Custom shapes and sizes are typically fabricated with one day to two week lead times
  • Custom filter types with longer lead times can also be quoted. Please contact us regarding feasibility.

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