


( Brand: Thorlabs ), ( Part Type: Len Mount ), ( Manufacturer Part Number: LA1740-B )
The Thorlabs LA1740-B is a high-quality, N-BK7 plano-convex lens with a focal length of 75mm to 85mm, making it an excellent choice for various applications in the field of optics and photonics. This lens is made from BK7 glass, a type of optical glass known for its excellent transmission in the visible and near-infrared wavelengths, which ranges from 400nm to 2500nm.
The plano-convex lens design features a flat surface on one side and a curved surface on the other, with a radius of curvature of 75mm to 85mm. This design allows for the focusing of light rays to a single point, making it suitable for applications such as collimation, beam shaping, and imaging. The lens has an anti-reflection (AR) coating on both surfaces to minimize reflections and maximize the transmission of light, which is especially important in high-power or sensitive applications.
The LA1740-B is mounted on an LMR75 thread, which is a common mounting standard in the optics industry. This allows the lens to be easily integrated into various optical systems, such as microscopes, telescopes, and laser systems. The lens has a diameter of 32mm, which provides a large aperture for collecting and transmitting light, and a thickness of 25.2mm.
Overall, the Thorlabs LA1740-B is a high-quality, versatile plano-convex lens that is well-suited for a wide range of applications in the field of optics and photonics. Its excellent transmission characteristics, anti-reflection coating, and LMR75 mount make it a reliable and easy-to-use optical component.
Pros of buying Thorlabs LA1740-B N-BK7 Plano-Convex Lens 75mm 85mm AR LMR75 Mount:1. High Quality: Thorlabs is a reputable company known for producing high-quality optical components. This lens is no exception, offering excellent optical performance and durability.
2. Wide Field of View: The 75mm to 85mm focal length range provides a wide field of view, making it suitable for various applications such as microscopy, imaging, and laser alignment.
3. AR Coating: The Anti-Reflective (AR) coating on both sides of the lens reduces reflection and increases transmission, improving image quality and reducing loss of light.
4. LMR75 Mount: The lens comes with a LMR75 mount, which is compatible with a variety of mounting options, making it easy to integrate into your optical system.
Cons of buying Thorlabs LA1740-B N-BK7 Plano-Convex Lens 75mm 85mm AR LMR75 Mount:1. Price: As with most high-quality optical components, this lens is on the pricier side. It may not be within everyone's budget.
2. Limited Focal Length Range: While the 75mm to 85mm focal length range is wide, it may not be suitable for applications that require a different focal length.
Conclusion:If you're looking for a high-quality, wide-field-of-view plano-convex lens for your optical system and are willing to pay for it, then the Thorlabs LA1740-B N-BK7 Plano-Convex Lens is a great choice. Its AR coating and LMR75 mount make it a versatile and reliable option. However, if price is a concern or you need a different focal length, you may want to consider other options.
Recommendation:If you're in the market for a high-quality plano-convex lens and have the budget for it, the Thorlabs LA1740-B N-BK7 Plano-Convex Lens is a solid choice. Its wide field of view, AR coating, and LMR75 mount make it a versatile and reliable option for a variety of applications. Just be sure to double-check that it meets your specific requirements before making a purchase.
Excellent, includes box for lens. Condition: Good. THORLABS LA1740-B Plano-Convex Lens with LMR75 Mount.