Substrate material

UV Grade Fused Silica or BK7

Diameter

25.0 +0~-.025 mm

Thickness

3 ± 0.5 mm

Min. clear aperture

>85% of diameter

Transmission

>90% average within specified range

Attenuation

>99% average within specified range

Angle of incidence

0° ± 5°

Coating Technology

Electron beam evaporation, dielectric multilayers

Surface quality

20/10 per MIL-O-13830B

Coating quality

40/20 per MIL-O-13830B

Wedge

<3 minutes

Wavefront distortion

≤1λ @ 633nm per 25mm

Humidity resistance

Per MIL-C-675A

Abrasion resistance

Per MIL-C-675A

Optimum temperature

23°C

Temperature limits

-50°C to 100°C

Certification

Spectrophotometer print of lot sample

Cleaning

Non-abrasive method, isopropyl alcohol on lens tissue recommended

Laser Induced Damage Threshold(LIDT)

>10J/cm2 (1.06μm, 1ns)

VIS-LPF400

400

340-380

400 ±10

440-1320

VIS-LPF450

450

380-430

450 ±10

495-1485

VIS-LPF500

500

425-475

500 ±10

550-1650

VIS-LPF550

550

470-525

550 ±10

605-1815

VIS-LPF600

600

515-575

600 ±10

660-1980

VIS-LPF650

650

550-620

650 ±10

715-2145

VIS-LPF700

700

600-670

700 ±10

770-2200

NIR-LPF750

750

640-715

750 ±10

825-2200

NIR-LPF800

800

685-760

800 ±10

880-2200

NIR-LPF850

850

725-810

850 ±10

935-2200

NIR-LPF900

900

770-860

900 ±10

990-2200

NIR-LPF950

950

810-910

950 ±10

1045-2200

NIR-LPF1000

1000

855-955

1000 ±10

1100-2200

NIR-LPF1100

1100

930-1050

1100±10

1150-2200

NIR-LPF1200

1200

1020-1150

1200±10

1250-2200

NIR-LPF1300

1300

1110-1250

1300±10

1350-2200

NIR-LPF1400

1400

1200-1350

1400±10

1450-2200

NIR-LPF1500

1500

1290-1450

1500±10

1550-2200