Processing Technology
01
Possesses 5-axis to 7-axis ultra-precision machining equipment and specialized operators, securing spherical and aspherical machining technology with precision within 2 μm.
- Lightweight machining
-
Variation per hole within 100 μm,
achieving up to 82.5% weight reduction.
- Gyro block machining
- Parallelism within 158 nm, eccentricity with respect to the channel intersection within ± 0.03 mm tolerance, and squareness within 5″.
- Aspherical machining
- Tolerance: RMS ≤ 0.1 μm.
02
1600 mm-class processing technology, lightweight, and dome manufacturing technology
- Possessing polishing technology that developed large off-axis aspherical surfaces and introduced them to mass production
- The data below secured production of 302 mm-class products to rms 4.376 nm and possesses technology capable of polishing products up to 1600 mm
- Hyper-hemispherical dome manufacturing technology is the only successful development in Korea
- 01. Primary Mirror, Zerodur
-
- Aperture Ø 1600 mm(Concave Parabolic)
- Surface Errors RMS < 7.5 nm
- Coating Protected Silver, %R > 98%
- Waveband Visible & MWIR
- 02. Concave Aspherical Mirror, Zerodur
-
- Aperture Ø 1200 mm (Convex Aspheric, Lightweight)
- Surface Errors PV < 79 nm, RMS < 12 nm
- Coating Protected Silver, %R > 98%
- Waveband Visible
- 03. Hyper-Hemispherical Dome, Sapphire
-
- Aperture Ø 117.2 (Dome)
- Surface Errors PV < 2/Lamda, Ø 50 AnyPoint
- Coating AR Coating, %T > 90%
- Waveband Visible & MWIR
Polishing Technology
01
Secured ultra-precision polishing technology with surface roughness levels of 0.2 nm and Rms below 10 nm for various shaped optical products, including lenses, mirrors, windows, and prisms
| spec | Spherical | |||
|---|---|---|---|---|
| Commercical | Precision | Highprecision | ||
| Specification | Tolerance | |||
| Outer diameter | ~ 1,200 mm | ± 0.1 mm | ± 0.02 mm | ± 0.01 mm |
| Curvature | R5 ~ R100 | ± 5 fringe | ± 3 fringe | ± 2 fringe |
| R100 ~ R1200 | ± 10 fringe | ± 5 fringe | ± 2 fringe | |
| Surface quality | S/D | 60/40 or less | 40/20 or less | 10/5 or less |
| rregularity (PV) | Lambda | 1/2 λ | 1/10 λ | 1/20 λ |
| Roughness (RMS) | RMS | 0.8 nm | 0.5 nm | 0.3 nm |
| Eccentricity (angle) | Sec | 60″ or less | 30″ or less | 10″ or less |
| spec | Aspherical | |||
|---|---|---|---|---|
| Commercical | Precision | Highprecision | ||
| Specification | Tolerance | |||
| Outer diameter | ~ 1,200 mm | ± 0.02 mm | ± 0.02 mm | ± 0.02 mm |
| Curvature | R5 ~ R100 | ± 5 fringe | ± 3 fringe | ± 2 fringe |
| R100 ~ R1200 | ± 10 fringe | ± 5f ringe | ± 2f ringe | |
| Surface quality | S/D | 60/40 or less | 40/20 or less | 10/5 or less |
| Irregularity (PV) | Lambda | 1 λ | 1/4 λ | 1/10 λ |
| Roughness (RMS) | RMS | 2 nm | 1 nm | 0.5 nm |
| Eccentricity (angle) | Sec | 60″ or less | 30″ or less | 10″ or less |
| spec | Flat | |||
|---|---|---|---|---|
| Commercical | Precision | Highprecision | ||
| Specification | Tolerance | |||
| Outer diameter | ~ 1,800 mm | ± 0.05 mm | ± 0.05 mm | ± 0.05 mm |
| Curvature | ∞ | - | - | - |
| ∞ | - | - | - | |
| Surface quality | S/D | 60/40 or less | 40/20 or less | 10/5 or less |
| Irregularity (PV) | Lambda | 1/4 λ | 1/10 λ | 1/20 λ |
| Roughness (RMS) | RMS | 0.5 nm | 0.3 nm | 0.2 nm |
| Eccentricity (angle) | Sec | 30″ or less | 10″ or less | 1″ or less |
| spec | Prism | |||
|---|---|---|---|---|
| Commercical | Precision | Highprecision | ||
| Specification | Tolerance | |||
| Outer diameter | ~ 100 mm | ± 0.03 mm | ± 0.03 mm | ± 0.03 mm |
| Curvature | ∞ | - | - | - |
| ∞ | - | - | - | |
| Surface quality | S/D | 60/40 or less | 40/20 or less | 10/5 or less |
| Irregularity (PV) | Lambda | 1/4 λ | 1/10 λ | 1/20 λ |
| Roughness (RMS) | RMS | 0.5 nm | 0.3 nm | 0.2 nm |
| Eccentricity (angle) | Sec | 30″ or less | 10″ or less | 5″ or less |
02
Possessing processing technology capable of producing ultra-precision optical components through CNC-based polishing, measurement, and evaluation
- Material Ge/ZnSe/ZnS/SiC/Si/CaF₂/BaF₂/Al/Cu/Ti
- Shape Spheres/ Aspheric/ Cylinder / Dome / Plate
- Quality up to PV λ/20, Ra < 0.3 nm
- Size Ø 1.2 m
- On-Machine Measurement with CGH Interferometer
~ 7 minutes polishing time
