Reflective collimator series
Specification Snapshot
Spectral Range [100mm off-axis reflective collimator; Upper table in parameter image 2]
400–2500 nm
Weight [100mm off-axis reflective collimator; Upper table in parameter image 2]
<200 kg
Focal Length [200mm off-axis two-mirror collimator; Upper tables in parameter images 3/7 (duplicate content recorded once)]
10 m
Field of View [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)]
1.3 °
Operating Temperature [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)]
0–40 degrees
Focal Length [200mm off-axis three-mirror collimator; Upper table in parameter image 4]
1000 mm
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Specifications
| Parameter | Value |
|---|---|
| Structural configuration [Parameter image 1; Series general specifications] | Newtonian reflector, Cassegrain and RC configurations |
| Clear Aperture [Parameter image 1; Series general specifications] | 50–1500 mm |
| Operating Wavelength Band [Parameter image 1; Series general specifications] | Reflective, covering UV to infrared |
| System focal length [Parameter image 1; Series general specifications] | F3–F10 |
| System Accuracy [Parameter image 1; Series general specifications; Specifics depend on the optical parameters and configuration] | RMS≤1/25λ@632.8nm |
| System focal length up to [Parameter image 1; Series overview] | Tens of meters, even over a hundred meters |
| Metal-coating laser damage threshold [Parameter image 1; Series overview] | Can reach 100 |
| Dielectric-coating laser damage threshold [Parameter image 1; Series overview] | Can reach 30 |
| Clear Aperture [100mm off-axis reflective collimator; Upper table in parameter image 2] | Φ100 |
| Effective Focal Length [100mm off-axis reflective collimator; Upper table in parameter image 2] | 1.5 m |
| Spectral Range [100mm off-axis reflective collimator; Upper table in parameter image 2] | 400–2500 nm |
| Beam parallelism [100mm off-axis reflective collimator; Upper table in parameter image 2] | Less than 2.5 |
| Optical quality [100mm off-axis reflective collimator; Upper table in parameter image 2] | On-axis wavefront aberration RMS≤λ/20 (λ=632.8nm) |
| Weight [100mm off-axis reflective collimator; Upper table in parameter image 2] | <200 kg |
| Adjustment mechanism [100mm off-axis reflective collimator; Upper table in parameter image 2] | Fine adjustment with multiple degrees of freedom |
| Focal Length [200mm coaxial collimator; Lower table in parameter image 2] | 1600mm±0.5% |
| Clear Aperture [200mm coaxial collimator; Lower table in parameter image 2] | Φ200 |
| Surface Figure Accuracy [200mm coaxial collimator; Lower table in parameter image 2] | RMS better than λ/10 (λ=632.8nm) |
| Material [200mm coaxial collimator; Lower table in parameter image 2] | Imported SCHOTT glass-ceramic |
| System type [200mm off-axis two-mirror collimator; Upper tables in parameter images 3/7 (duplicate content recorded once)] | Off-axis Newtonian reflector |
| Clear Aperture [200mm off-axis two-mirror collimator; Upper tables in parameter images 3/7 (duplicate content recorded once)] | Φ200 |
| System wavefront aberration [200mm off-axis two-mirror collimator; Upper tables in parameter images 3/7 (duplicate content recorded once)] | Center field better than λ/15 (λ=632.8nm) |
| Focal Length [200mm off-axis two-mirror collimator; Upper tables in parameter images 3/7 (duplicate content recorded once)] | 10 m |
| Operating Wavelength Band [200mm off-axis two-mirror collimator; Upper tables in parameter images 3/7 (duplicate content recorded once)] | 0.5–0.95μm、1.45–1.6μm |
| Clear Aperture [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | Φ220 |
| Operating Wavelength Band [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | 0.35–2 μm |
| Field of View [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | 1.3 ° |
| System Accuracy [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | PV better than λ/2 (λ=632.8nm) |
| External Dimensions [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | ≤1100×750×500 |
| Mechanical material [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | Invar |
| Height adjustment amount [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | ±5 mm |
| Operating Temperature [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | 0–40 degrees |
| Vibration resistance [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | Random vibration 5–500Hz, sinusoidal vibration 5–500Hz |
| Peak [220mm off-axis 'niu-fan' collimator (source wording); Lower tables in parameter images 3/7 (duplicate content recorded once)] | 0.33 mm |
| Clear Aperture [200mm off-axis three-mirror collimator; Upper table in parameter image 4] | Φ200 |
| Focal Length [200mm off-axis three-mirror collimator; Upper table in parameter image 4] | 1000 mm |
| Relative Aperture [200mm off-axis three-mirror collimator; Upper table in parameter image 4] | 1/7.5 |
| Field of View [200mm off-axis three-mirror collimator; Upper table in parameter image 4] | 1°, far field of view (source wording) |
| System Accuracy [200mm off-axis three-mirror collimator; Upper table in parameter image 4] | λ/15 RMS over the full field, λ=632.8nm |
| Structural configuration [200mm off-axis three-mirror collimator; Upper table in parameter image 4] | Off-axis three-reflection structure without transmission blocking (literal source wording) |
| Overall System Dimensions [200mm off-axis three-mirror collimator; Upper table in parameter image 4] | 1100 mm × 700 mm × 500 mm |
| Focal Length [200mm sub-arcsecond parallelism test system; Lower table in parameter image 4] | 2150 mm |
| Clear Aperture [200mm sub-arcsecond parallelism test system; Lower table in parameter image 4] | Φ200 |
| Surface Figure Accuracy [200mm sub-arcsecond parallelism test system; Lower table in parameter image 4] | RMS better than λ/14 (λ=632.8nm) |
| Operating Wavelength [200mm sub-arcsecond parallelism test system; Lower table in parameter image 4] | 400–900 nm |
| Full-aperture wavefront at the center field [200mm sub-arcsecond parallelism test system; Lower table in parameter image 4] | RMS≤λ/14(λ=632.8nm) |
| Operating Environment [200mm sub-arcsecond parallelism test system; Lower table in parameter image 4] | Room temperature |
| Emerging-light parallelism [200mm sub-arcsecond parallelism test system; Lower table in parameter image 4] | Better than 1 |
| Optical-axis alignment test precision [200mm sub-arcsecond parallelism test system; Lower table in parameter image 4; Achieved in conjunction with CCD-camera resolution] | 0.5 ″ |
| Clear Aperture [250mm coaxial Newtonian collimator; Upper table in parameter image 5] | Φ250 |
| Focal Length [250mm coaxial Newtonian collimator; Upper table in parameter image 5] | 1500 mm |
| Primary- and secondary-mirror material [250mm coaxial Newtonian collimator; Upper table in parameter image 5] | Microcrystalline |
| Window protective-glass material [250mm coaxial Newtonian collimator; Upper table in parameter image 5] | Fused Silica |
| System Accuracy [250mm coaxial Newtonian collimator; Upper table in parameter image 5] | 1/10λ RMS,λ=632.8nm |
| Operating Wavelength Band [250mm coaxial Newtonian collimator; Upper table in parameter image 5] | 355nm、532nm、1064nm |
| Clear Aperture [300mm dual-focal-length off-axis reflective optical tube; Lower table in parameter image 5] | ≥300 mm |
| Mirror coating [300mm dual-focal-length off-axis reflective optical tube; Lower table in parameter image 5] | Silver coating plus protective coating |
| Reflection [300mm dual-focal-length off-axis reflective optical tube; Lower table in parameter image 5; Operating wavelengths 632.8nm, 800nm, 1550nm] | >95 % |
| Off-axis two-mirror system focal length [300mm dual-focal-length off-axis reflective optical tube; Lower table in parameter image 5] | 18m/6m |
| Long-focal-length system wavefront aberration [300mm dual-focal-length off-axis reflective optical tube; Lower table in parameter image 5] | RMS≤0.04λ,λ=632.8nm |
| System optical-axis center height [300mm dual-focal-length off-axis reflective optical tube; Lower table in parameter image 5] | 270±10 mm |
| Clear Aperture [300mm off-axis Cassegrain collimator; Upper table in parameter image 6] | Φ300 |
| Focal Length [300mm off-axis Cassegrain collimator; Upper table in parameter image 6] | 3000±20 mm |
| System Wavefront [300mm off-axis Cassegrain collimator; Upper table in parameter image 6] | RMS<λ/25(λ=632.8nm) |
| On-site acceptance precision [300mm off-axis Cassegrain collimator; Upper table in parameter image 6] | RMS=0.037λ,λ=632.8nm |
| Field of View [300mm off-axis Cassegrain collimator; Upper table in parameter image 6] | 2ω=20′ |
| Temperature change [300mm off-axis Cassegrain collimator; Upper table in parameter image 6] | 25°±2° |
| Structural configuration [300mm off-axis Cassegrain collimator; Upper table in parameter image 6] | Off-axis R-C configuration |
| Clear Aperture [310mm off-axis Cassegrain collimator; Lower table in parameter image 6] | Φ310 |
| Focal Length [310mm off-axis Cassegrain collimator; Lower table in parameter image 6] | 3000 mm |
| Field of View [310mm off-axis Cassegrain collimator; Lower table in parameter image 6] | 2ω=0.5° |
| Operating Wavelength Band [310mm off-axis Cassegrain collimator; Lower table in parameter image 6] | 450–2500 nm |
| System Accuracy [310mm off-axis Cassegrain collimator; Lower table in parameter image 6; λ=632.8nm; Retained separately from the nominal field-of-view row] | RMS better than λ/20 at 0° field; RMS better than λ/10 at 0.5° field; RMS better than λ/2 at 1° field |
| Clear Aperture [330mm off-axis reflective collimator; Upper table in parameter image 8] | Φ330 |
| Focal Length [330mm off-axis reflective collimator; Upper table in parameter image 8] | 3000 mm |
| Operating spectral band [330mm off-axis reflective collimator; Upper table in parameter image 8] | Reflective elements 300–1100nm; Transmissive elements 400–900nm |
| Transmittance change [330mm off-axis reflective collimator; Upper table in parameter image 8] | TpV≤11.5% |
| System wavefront aberration [330mm off-axis reflective collimator; Upper table in parameter image 8] | RMS less than λ/20 (λ=632.8nm) |
| Emerging-light parallelism [330mm off-axis reflective collimator; Upper table in parameter image 8] | Better than 0.836″ (Φ≤150mm) |
| Optical-axis thermal stability [330mm off-axis reflective collimator; Upper table in parameter image 8] | Better than 0.89″/℃ (20℃±5℃) |
| Clear Aperture [400mm off-axis Newtonian reflective collimator; Collimator table in the lower part of parameter image 8] | Φ400 |
| Focal Length [400mm off-axis Newtonian reflective collimator; Collimator table in the lower part of parameter image 8] | 4000 mm |
| System Accuracy [400mm off-axis Newtonian reflective collimator; Collimator table in the lower part of parameter image 8] | Better than λ/20 (RMS), λ=632.8nm |
| Operating Wavelength Band [400mm off-axis Newtonian reflective collimator; Collimator table in the lower part of parameter image 8] | 0.4–2 μm |
| Clear Aperture [500mm off-axis collimator; Upper table in parameter image 9] | Φ500 |
| Focal Length [500mm off-axis collimator; Upper table in parameter image 9] | 300 m |
| Output collimated-beam wavefront quality [500mm off-axis collimator; Upper table in parameter image 9] | Better than λ/3 PV @633nm |
| Light-source wavelength-band range [500mm off-axis collimator; Upper table in parameter image 9] | Visible, near-infrared, mid-wave infrared and long-wave infrared |
| Clear Aperture [800mm coaxial collimator; Lower table in parameter image 9] | Φ800 |
| Focal Length [800mm coaxial collimator; Lower table in parameter image 9] | 150 m |
| Field of View [800mm coaxial collimator; Lower table in parameter image 9] | 35 mm |
| System Accuracy [800mm coaxial collimator; Lower table in parameter image 9] | Better than λ/20 RMS, λ=632.8nm |
| Operating Wavelength Band [800mm coaxial collimator; Lower table in parameter image 9] | 0.4–20 μm |
| Structural configuration [1200mm off-axis collimator; Upper table in parameter image 10] | Off-axis Newtonian reflector |
| Clear Aperture [1200mm off-axis collimator; Upper table in parameter image 10] | Φ1200 |
| System focal length [1200mm off-axis collimator; Upper table in parameter image 10] | 80 m |
| Effective Field of View [1200mm off-axis collimator; Upper table in parameter image 10] | 45 ′ |
| Total reflectance [1200mm off-axis collimator; Upper table in parameter image 10; 3–12μm] | >0.96 |
| System Accuracy [1200mm off-axis collimator; Upper table in parameter image 10] | RMS≤0.1λ,λ=632.8nm |
| Clear Aperture [1500mm coaxial Cassegrain collimator; Lower table in parameter image 10] | Φ1500 |
| System focal length [1500mm coaxial Cassegrain collimator; Lower table in parameter image 10] | 52m(±2%) |
| System field of view [1500mm coaxial Cassegrain collimator; Lower table in parameter image 10] | ≥6 ′ |
| Wavelength Band [1500mm coaxial Cassegrain collimator; Lower table in parameter image 10] | 0.4–5 μm |
| Center height [1500mm coaxial Cassegrain collimator; Lower table in parameter image 10] | 3000 mm |
| RMS wavefront aberration [1500mm coaxial Cassegrain collimator; Lower table in parameter image 10; Full field of view] | Better than 120 |
| System configuration [1500mm coaxial Cassegrain collimator; Lower table in parameter image 10] | Coaxial Cassegrain |
| Focal-plane position [1500mm coaxial Cassegrain collimator; Lower table in parameter image 10] | Nasmyth focus |
| Environmental Adaptability [1500mm coaxial Cassegrain collimator; Lower table in parameter image 10] | Focal-plane movement ≤±0.6mm (22±5℃) |
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Supplier Information
Nanjing Intane Optical Engineering Co., Ltd. was founded in 2003 by Professor Zhou Bifang, former director of the Nanjing Astronomical Instruments Research Center of the Chinese Academy of Sciences and a doctoral supervisor. It is a national high-tech enterprise with precision optical system solutions as its core competitiveness, focusing on the R&D and provision of satellite laser communication systems and related products.
The company was listed on the New Third Board in 2016 (stock code: 836787). It is a national-level specialized and sophisticated "little giant" enterprise, has passed ISO9001 quality management system certification and work safety standardization certification, and holds the qualification of a weapons and equipment manufacturing unit. The company has three provincial-level R&D platforms (Jiangsu Provincial Engineering Technology Research Center, Jiangsu Provincial Engineering Research Center, and Jiangsu Provincial Enterprise Technology Center) and a provincial-level academician workstation. It has been recognized as a Jiangsu Provincial Innovation and Entrepreneurship Team and a Nanjing Intellectual Property Demonstration Enterprise. To date, it has obtained more than 80 authorized patents (including more than 40 invention patents), established industry-university-research cooperation with many universities such as Nanjing University, Nanjing University of Aeronautics and Astronautics, and Nanjing University of Science and Technology, and has two provincial-level graduate workstations.
Relying on more than 20 years of accumulated capabilities in complex system design, integration, testing, and key component manufacturing, the company has built an R&D team mainly focused on optical engineering and space optical communication, and has made outstanding contributions to major national scientific research projects such as the "Chang'e Project," the "Tianwen Mars Exploration Program," the "Zhurong Rover," and "Shenzhou-12." Since 2005, the company has continuously participated in national satellite laser communication technology research. It has successively completed the independent development of five generations of space-based terminals, five generations of ground-based terminals, and two generations of air-based laser communication terminals. It has won the Jiangsu Provincial Science and Technology Award and undertaken Nanjing's first batch of major science and technology projects and Jiangsu Provincial Scientific and Technological Achievement Transformation Projects. In 2011, the company's technology helped the "Haiyang-2" satellite achieve China's first two-way laser communication between a low-orbit satellite and the ground. The related achievements won the Special Prize of the National Defense Technology Invention Award and the First Prize of the National Technology Invention Award. In 2017, it supported the "Shijian-13" satellite in completing 5 Gbps high-speed satellite-to-ground laser communication verification in geosynchronous orbit. In 2020, its independently developed micro-nano satellite laser communication payload successfully completed in-orbit verification, filling a domestic technological gap. In 2025, the inter-satellite laser communication terminal developed by the company for the GW constellation was successfully launched and carried out in-orbit verification.
As one of the earlier enterprises participating in the formulation of technical standards for laser communication terminals of China Satellite Network Group, the company won first place in the first public bidding for inter-satellite laser terminals in 2023 and passed prototype system acceptance in the same year. In 2024, the Innovation Research Institute of China Satellite Network Group sent a special letter of thanks, recognizing the company's technical contributions and recommending it to participate in the planning and construction of the laser communication terminal production line at the Hainan Wenchang Satellite Super Factory. In 2025, the company undertook the verification task for the inter-satellite laser link of the second-generation GW constellation satellites. It is a private commercial aerospace enterprise with deep technological accumulation and rich engineering experience in China.
At present, the construction of global satellite internet is accelerating, and commercial aerospace has been included in the catalog of national strategic emerging industries and has become the first of the top ten fields of new quality productive forces. Intane Optics will keep pace with the national satellite internet construction, implement the innovation-driven development strategy, and contribute to the construction of China's version of "Starlink" and to space information security.
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