Optical Coatings
| Coating | Substrate | Type of component (lens, cemented lenses, prism, cemented prisms,
plane-parallel plates) |
Spectrum characteristics of the coatings | Overall dimensions, mm |
| 1 | 2 | 3 | 4 | 5 |
| AR coating | ||||
| 1.Single wave coating.
The coating provides antireflection for a single wavelength. |
Optical glasses with a refractive index nе from 1,44 to 1, 8138 | Lenses, plates, wedges, prisms | – R ≤ 0,3 % for λ = 550 nm
– R ≤ 0,3 % for λ = 632,8 nm – R ≤ 0,3 % for λ = 650 nm – R ≤ 0,3 % for λ = 720 nm – R ≤ 0,3 % for λ = 808 nm – R ≤ 0,3 % for λ = 860 nm – R ≤ 0,3 % for λ = 1060 nm – R ≤ 0,3 % for λ = 1064 nm – R ≤ 0,3 % for λ = 1540 nm |
Lenses: from Ø 5 mm to Ø 80 mm.
Plates, wedges: – from Ø 5 mm to Ø 80 mm; – from 8х8 mm to 70х70 mm. Prism types АР-90°, АР-0°, БР-180°, БС-0°, АкР-90°, БП-90°: Size of the sides – from 7х7 mm to 40х40 mm. Diameter from 3 mm to 8 mm, length from 50 mm to 80 mm. |
| 2. Multiwave and broadband antireflection. The coating provides antireflection for two or more wavelengths. | Optical glasses with a refractive index nе from 1,44 to 1, 8138
К8, silica KGW |
Lenses, plates, wedges, prisms
Active elements |
– Rср. ≤ 0,5 % for ∆λ = (420 – 700) nm
– Rср. ≤ 0,5 % for ∆λ = (650 – 1000) nm. – RА ≤ 0,8 %. – Rλ ≤ 0,5 % for λ=755 nm and λ=1064 nm – Rλ ≤ 1 % for λ = 1064 nm – Rλ ≤ 0,5 % for λ = 1351 nm – Rλ ≤ 0,5 % for λ = 1538 nm |
|
| High-reflection coating | ||||
| 1. Metal-dielectric coatings | К8 | Plates, prisms | – Rλ ≥ 99 % for λ = 1064 nm
– Rλ ≥ 96 % for λ = 1067 nm, α = 45°. – Rλ ≥ 96 % for λ = 1067 nm, α = 48°. – Rλ ≥ 96% for ∆λ=(600–700)nm, α = 45°. – Rλ ≥ 96 % for λ = 632,8 nm – Rλср. ≥ 93 % for ∆λ = (480 – 650) nm – RА ≥ 90 %, α = 45°. |
Plates:
– from Ø 5mm to Ø 80 mm; – from 8х8 mm to 70х70 mm.Prism types АР-90°, Ар-0°, БР-180°, БС-0°, АкР-90°, БП-90°: Size of the sides – from 7х7 mm to 40х40 mm. |
| 2. Dielectric coatings | К8 | Lenses, prisms, plates | – Rλ ≥ 96 % for λ = 632,8 nm
– Rλ ≥ 90 % for ∆λ = (640 – 690) nm – Rλ ≥ 90 % for λ = (500 – 550) nm – Rλ ≥99% for λ=755nm and for λ=1064 nm – Rλ ≥ (95 ± 1) % for λ = 1064 nm – Rλ ≥ 99 % for λ = 1064 nm |
|
| Beam-splitting coating | ||||
| 1. For unpolarized radiation | К8
К8 К8 |
Prisms (measured on glued prisms at the angle of incidence of radiation α = 45 ° to the hypotenuse)
Lenses, plates (measured R at an angle of incidence of radiation α = 8°, measured T at an angle of incidence of radiation α = 0°) Plates (measured at the angle of incidence of radiation α = 45°) |
– Т = (50 ± 5) % for λ = 540 nm
– Т = (47 ± 3) % for λ = (530 ± 30) nm – Т = (50 ± 5) % for λ = 680 nm – Тср. = (70 ± 5) % for ∆λ = (400–750) nm – Т = (86 – 90) % for λ = (540 ± 10) nm – Тср. = (28 – 35) % for ∆λ = (420–820) nm – Тср. ≥ 70 % for ∆λ = (475 – 625) nm Т ≤ 30 % for λ = 1064 nm – Rλ = (10 ± 3) % λ = 1060 nm – Rλ = (25 ± 5) % for λ = 1060 nm – Rλ ≤ 10 % for λ = 560 nm, Rλ ≥ 70 % for λ = 660 nm – Т∆λ. ≥ 75 % for ∆λ = (420 – 615) nm, Т ≤ 30 % for λ = 650 – 670 nm – R∆λ. ≤ 15 % for ∆λ = (400 – 550) nm, R ≥ 85 % for ∆λ = 630 – 670 nm – Т∆λ. ≤ 10 % for ∆λ = (600 – 700) nm, Т ≥ 94 % for λ = 1067 nm |
Prism types АР-90:
Size of the sides -from 7х7 mm to 40х40 mm. Lenses: from Ø 5m to Ø 80 mm. Plates: – from Ø 5 mm to Ø 80 mm; – from 8х8 mm to 70х70 mm. Plates: – from Ø 5 mm to Ø 80 mm; – from 8х8 mm to 70х70 mm. |
| 2. For polarized radiation | К8
ТК121 К8 К8 К8 |
Prisms (measured on glued prisms at the angle of incidence of radiation α = 45° ° to the hypotenuse)
Prisms (measured on glued prisms at the angle of incidence of radiation α = 48°57′ ° to the hypotenuse) Prisms (measured on glued prisms at the angle of incidence of radiation α = 34°50′ ° to the hypotenuse) Prisms (measured at the angle of incidence of radiation α = 45°) |
– Rs/Ts = 2 ÷ 4 for λ = 633 nm
– Rs/Ts = 0,6 ÷ 1 for λ = 633 nm – Rs/Ts = 0,8 ÷ 2 for λ = 633 nm – Тр ≥ 90 % and Ts ≤ 2 % for ∆λ = (900 ± 25) nm – Тs = (45 – 56) % for λ = 633 nm – Тs = (63 – 70) % for λ = 633 nm – Тр = (51 ± 5) % and Ts = (48 ± 5) % for λ = 633 nm |
Prism types
АР-90: Size of the sides -from 7х7 mm to 40х40 mm. Prism types АР-90: Size of the sides – от 7х7 mm to 40х40 mm. Prism types АР-90: Size of the sides -от 7х7 mm to 40х40 mm. Prism types АР-90: Size of the sides – от 7х7 mm to 40х40 mm. Plates: – from Ø 5 mm to Ø 80 mm; – from 8х8 mm to 70х70 mm. |
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