High Performance Hot Mirror (HPHM)

Thin Film Devices now produces the High Performance Hot Mirror (HPHM) which is superior to conventional Hot Mirrors. High Performance Hot Mirror rejects ≥ 80% of heat wavelengths, for 1 – 3 µm range, for improved performance.

Thin Film Devices Hot Mirror Filters are coated using our proprietary Ion Beam Sputtering process. As a result, TFD Hot Mirror grain sizes are more compact, higher density, and show very low light scatter (Haziness), and higher temperature stability to (450 °C – 2 hrs) which can not be said for Ion-Beam and/or e-beam coated Hot Mirrors. Typical applications are filters for sun loading, microscopes, CMOS filters and similar.

HOTMIR2

NVIS Filters

Substrate Material:

  • Glass: Eagle XG, Eagle 2000, Borofloat, Standard Float (soda-lime) Matte, and others
  • Tempered Glass: Chemical or Heat Tempered

Product Dimensions:

  • Sizes: 14” x 18” (356 mm x 457 mm), to 24″ x 24” (610 mm x 610 mm)
  • (variations considered, consult factory)
  • Tolerances of sizing: ±0.002” (±0.05 mm), or as specified
  • Thicknesses: 0.010” (0.25 mm), to 0.50” (12.7 mm)

Process:

  • ION BEAM SPUTTERING (SUPERIOR PROCESS)

Coating Uniformity:

  • ± 2.5% across full sheet

Surface Quality:

  • Haze: ≤ 1.0%
  • Defects: < 10 micron (on large substrate)
  • Imbedded Particle: < 5 micron
  • Surface Roughness: < 100Å RMS
  • Inspection: 3K Lux (for 60/40); or 5K Lux (for 20/10)

Durability:

  • Abrasion: 80 STROKES @ 2.5 lb (Mil C-675)
  • Adhesion: Snap test (Mil M-13508)
  • Solubility: > 24 hours in Sodium Chloride, Fog and Solution (Mil C-675)
  • Temperature: > 12 hours @ -55 to 350°C

Packaging:
To Class 100

HM4

EMI – NVIS Filter

HM7

EMI – NVIS Filter

PICT0199

6 filter laminated

PICT0187

VV – IR Filter

HPHM* UV-VISIBLE STANDARD PLASTIC (only)
Transmission 90%avg 90%avg 90%avg 70%
Transmission @ 50% 700nm, ±15nm 65nm, ±15nm 700nm, ±15nm 700nm, ±15nm
Rejection Band:() aio) 750-25Knm 375-650nm 750-950nm 750-1200nm
Reflectance: ≥95%avg ≥95%avg ≥95%avg ≥80%
Absorption (coating): <1% <1% <1% 10%
(HPHM* = High Performance Hot Mirror)
2Fltrs

Laminated Heater and NVIS Filters

PICT0189

EMI – NVIS Filter

HOTMIR1

NVIS type A,B,C

HM3a

NVIS type A,B,C