
( Brand: Thorlabs ), ( Model: PS990 ), ( Country/region Of Manufacture: United States )
The Thorlabs PS990 Dove Prism BK7 Uncoated is a high-quality optical component designed for a wide range of applications, particularly those involving polarization manipulation and beam deviation. This prism is crafted from BK7 (7B2) optical glass, a standard material known for its excellent transparency and durability in the visible spectrum.
The PS990 Dove Prism features a unique 56-degree angle, which allows for a 90-degree deviation of the incident light beam, making it an ideal choice for optical systems where beam deflection is required. The prism's Dove configuration, named after Sir Robert Dove who first described it, provides a symmetric refracted beam, ensuring minimal beam distortion and maintaining the integrity of the light path.
This uncoated prism offers a raw surface, which means it does not have any anti-reflection coatings. While this may result in a higher degree of reflection, it can be beneficial in certain applications, such as those requiring specific polarization states or interference effects. However, users should be aware that the uncoated surface may lead to more light loss compared to coated alternatives.
The PS990 Dove Prism BK7 Uncoated is a robust and versatile optical component, suitable for various laboratory and industrial applications, including but not limited to, research, development, and industrial inspection systems. With its precise manufacturing, excellent optical properties, and rugged design, this prism is an essential tool for any optical engineer or researcher seeking to manipulate and control light beams effectively.
Product: Thorlabs Dove Prism BK7 Uncoated (PS990)
Pros:1. High-quality BK7 glass material, known for its excellent transmission in the visible spectrum.
2. Uncoated surface allows for customized coatings if needed, depending on specific application requirements.
3. Compact size makes it easy to integrate into various optical systems.
4. Known for its robustness and durability, which is essential for long-term use.
5. Provides a 90-degree angle deflection, ideal for beam redirecting applications.
Cons:1. Uncoated surface may lead to higher reflection losses compared to coated prisms, which could be a concern for applications where maximum transmission is critical.
2. Since it's a specialized optics component, the price might be higher than standard, everyday optical components.
3. The uncoated surface requires careful handling to avoid scratches or other damage that could degrade its performance.
Conclusion:The Thorlabs Dove Prism BK7 Uncoated (PS990) is a high-quality prism suitable for various beam redirecting applications, thanks to its robust construction, compact size, and high-quality BK7 glass material. However, the uncoated surface may result in higher reflection losses compared to coated prisms, and the price might be relatively high. If maximum transmission is crucial for your application, considering a coated prism might be more appropriate. Otherwise, the Thorlabs Dove Prism BK7 Uncoated (PS990) is a reliable choice, especially for applications where customizable coatings are needed.
Recommendation:If you require a high transmission prism and can accommodate coatings, consider coated prisms instead. For applications where beam deflection and compact size are essential, and customizable coatings are a plus, the Thorlabs Dove Prism BK7 Uncoated (PS990) is an excellent choice. Always ensure proper handling to maintain the prism's quality and performance.
Nib PS990 - dove prism, a 5mm, n-bk7, uncoated new in original box image.