OP8342 Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 5 mm, Uncoated

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 5 mm, Uncoated Description

Calcium Fluoride (CaF2) windows are valued for their exceptional optical transmission and low dispersion across a wide range of wavelengths, from the ultraviolet (UV) through the infrared (IR). Measuring 25.4 mm in diameter and 5 mm thick, these uncoated windows are manufactured from high-purity CaF2 material, ensuring minimal scattering and excellent surface quality. Their hardness also provides greater scratch resistance compared to many other fluoride-based optics, allowing for consistent performance in demanding environments.

These CaF2 windows are commonly used in spectroscopy, laser applications, and thermal imaging systems, due to their broadband transparency and stable performance over varying temperatures. Produced to strict industry standards, each window undergoes rigorous inspection to achieve optimal flatness, parallelism, and surface finish. Whether utilised in research laboratories or industrial settings, these windows deliver consistent results.

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 5 mm, Uncoated Applications

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 5 mm deliver exceptional optical clarity from UV to infrared wavelengths, making them suitable for diverse applications. These uncoated windows exhibit low refractive index, minimal absorption, and high damage thresholds, ensuring effective performance in demanding environments. Their chemical inertness and thermal stability make them reliable for both durable industrial use and precise scientific research.

1. Industrial Applications

·         Application 1: High-power laser processing systems, where low absorption and excellent thermal stability enable efficient beam delivery and minimal distortion.

·         Application 2: Infrared imaging windows in harsh manufacturing conditions, taking advantage of CaF2’s wide transmission range and resilience to chemical exposure.

2. Research Applications

·         Application 1: Spectroscopy experiments across ultraviolet to infrared ranges, supported by CaF2’s broad transparency and minimal fluorescence.

·         Application 2: Cryogenic and vacuum chamber experiments, utilising the material’s low refractive index and chemical inertness for accurate measurements.

3. Commercial Applications

·         Application 1: High-resolution thermal imaging lenses used in security or surveillance systems, benefiting from the material’s optical clarity.

·         Application 2: Precision instrumentation components, ensuring stable performance under variable environmental conditions thanks to CaF2’s strong structure.

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 5 mm, Uncoated Packaging

Each uncoated Calcium Fluoride (CaF2) window, measuring 25.4 mm in diameter by 5 mm thick, is carefully sealed in a protective foam-lined container to prevent scratches during transit. We recommend storing them in a clean, dry environment with controlled temperature and minimal dust exposure. Protective gloves should be worn to avoid contamination. Custom sizing, shapes, and coatings are also available to meet specific application requirements.

Packaging: Vacuum sealed, Wooden Box, or Customised.

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 5 mm, Uncoated FAQs

Q1: What are the key material properties of Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 5 mm, Uncoated ?

A1: Calcium Fluoride (CaF2) windows are known for their high transparency over a broad wavelength range (roughly 0.13µm to 10µm), making them suitable for ultraviolet (UV) to infrared (IR) applications. They feature low refractive index and minimal dispersion, reducing chromatic aberrations. With good chemical resistance and thermal stability, these windows maintain performance under moderate thermal loads. Their low absorption ensures minimal energy loss, and their hardness provides durability for demanding optical setups.

Q2: How should this product be handled and stored?

A2: These CaF2 windows are relatively brittle and can be prone to chipping or scratching if mishandled. Always use clean, soft gloves when handling to avoid introducing contaminants or fingerprints. Prevent contact with sharp objects and abrasive materials. Store the windows individually in cushioned containers, ensuring minimal contact with other surfaces. Control humidity and temperature variations to avoid thermal shock or condensation, which could degrade surface quality over time.

Q3: Which quality standards and certifications apply to Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 5 mm, Uncoated ?

A3: Calcium Fluoride windows typically conform to strict ISO 10110 standards governing optical component material quality, surface accuracy, and surface imperfections. Many manufacturers also meet MIL-PRF-13830B requirements, ensuring consistent scratches and digs classification. Optional compliance with RoHS and REACH regulations addresses hazardous substance restrictions. Choose products from suppliers with documented quality management systems, such as ISO 9001, to guarantee consistent performance, traceability, and adherence to globally recognised technical specifications.

Related Information

1. Material Properties and Advantages

Manufactured from high-purity calcium fluoride, these CaF2 windows with a diameter of 25.4 mm and a thickness of 5 mm exhibit low refractive indices across a broad wavelength range. This property enhances their utility in applications necessitating minimal optical distortion, as the windows effectively reduce unwanted reflection and scattering effects. The uncoated design is particularly suited for spectroscopy setups where maximum transparency and minimal interference are essential for capturing accurate measurements.

Optimised for both ultraviolet and infrared transmissions, these calcium fluoride windows provide durability in challenging environments. Their hardness safeguards against scratches, which, combined with their high thermal stability, makes them reliable in processes where mechanical and thermal stresses could compromise clarity. Additionally, the low solubility of CaF2 contributes to an extended service life, ensuring consistent performance over time.

2. Applications in Advanced Industries

Telecommunications systems benefit significantly from these uncoated CaF2 windows, as they enable precise signal transmission at various wavelengths. By maintaining high spectral transmittance, they help minimise signal degradation and support cleaner data links in high-speed fibre-optic applications. The broad transparency range of calcium fluoride further positions these windows as a premium choice for research laboratories engaged in photonics and laser development.

Semiconductor processes also rely on these windows to achieve optimal results in photolithography and metrology instruments. Their low scatter and minimal absorption of laser light ensure that calibration and patterning processes remain precise. In these manufacturing environments, even subtle optical inconsistencies can hinder productivity and yield, but the clarity and consistency of CaF2 windows effectively address such challenges.