An optical window is a flat transparent plate made of special optical material, designed to separate the internal environment of an optical device from the external environment, while preventing dust, moisture, air, and other contaminants from entering the optical system, and at the same time transmitting light without distortion or changing the shape of the light beam.
Materials and characteristics
In our company, optical windows are manufactured from high-quality optical glass, with the following key characteristics:
- High homogeneity and transparency within the specified wavelength range
- Low level of internal defects (bubbles, inclusions, striae), ensuring clarity and quality of light transmission
- Accurate refractive index and low dispersion to minimize distortion and chromatic aberrations
- Resistance to mechanical and chemical effects, as well as temperature fluctuations
Types of optical windows
- Parallel windows — with parallel flat surfaces, minimizing distortion and used for transmitting light without changing its direction.
- Wedge windows — with a small angle between surfaces, used for beam deviation and reduction of back reflections.
Applications
- Optical devices and systems (lasers, spectrometers, cameras, telescopes, etc.)
- Protective windows for sensors and photodetectors
- Medical equipment and scientific instruments
- Space and aviation technology, where high transparency and resistance to extreme conditions are essential
- Industrial control and measurement systems
- Protective windows for laser cutting machine heads
Flat optics for the UV and visible range offered by our company:
| Specification | Standard | Achievable |
|---|---|---|
| Diameter/overall size | 1 – 120 mm | 1 – 500 mm |
| Material | “Colorless Optical Glass” 13659-78, “Colored Optical Glass” 9411-91, “Quartz Optical Glass” 15130-86 | “Colorless Optical Glass” 13659-78, “Colored Optical Glass” 9411-91, “Quartz Optical Glass” 15130-86, as well as OXARA and Schott |
| Diameter/size tolerance | +0.0/-0.2 mm | +0.0/-0.02 mm |
| Thickness tolerance | +/-0.2 mm | +/-0.02 mm |
| Parallelism / maximum wedge | < 5 arc min | < 5 arc sec |
| Surface quality | P = I – IX | P = 0 – 10, 0 – 20, 0 – 40, I – IX |
| Flatness (at 633 nm) | 0.5 fringe | 0.2 fringe |
| Clear aperture | >90% of diameter/overall size | >95% of diameter/overall size |
| Coating | As per customer request | As per customer request |
Advantages of ordering flat optics from our company:
- High product quality. We use premium materials and modern manufacturing technologies to produce optics with precise parameters and minimal tolerances. We also employ deep grinding and polishing (DGP) technology, making our optical windows suitable for high-power laser applications.
- Wide range. We manufacture various types of flat optics tailored to your needs.
- Custom solutions. We offer individual selection of materials and coatings to meet customer requirements, ensuring optimal performance of your equipment while considering the unique needs of each application.
- Modern equipment. High-precision grinding, polishing, and coating machines guarantee perfect surfaces and optical properties.
- Optical coatings. We apply antireflective, mirror, beam-splitting, and other coatings to enhance optical performance.
- Competitive pricing. Streamlined production processes allow us to offer favorable terms without compromising quality.
- Short production times. We honor agreements and deliver on time, even for complex requirements.
- Quality control at all stages. Each part undergoes inspection in accordance with GOST 11141-84 standards, eliminating defects.
- Technical support. We provide consulting from drawing development to the finished product. Our team assists with material selection, calculations, and optical element design.
- Flexible cooperation terms. We work with both large orders and small batches, offering an individual approach to every customer. A 1-year warranty is provided for all optics.
Optical windows manufactured at our facility are high-precision, reliable, and durable components that ensure maximum transparency and minimal distortion in the most demanding optical systems.
