Introduction of Double-Convex Lens
A Double-Convex Lens (also known as a biconvex lens) is a type of optical lens that has two outward-curved surfaces. These lenses are typically used for focusing light, making them essential in various optical systems such as cameras, microscopes, telescopes, and laser systems.
Detailed Product Description of Double-Convex Lens:
Material Options:
- BK7: A popular optical glass known for its high transmission in the visible spectrum and excellent homogeneity. It is often used for lenses and prisms in optical systems.
- UV Fused Silica: A high-performance material for optical applications, especially when dealing with ultraviolet (UV) light. It has excellent transmission properties in the UV range and is highly resistant to thermal shock and mechanical stresses.
Diameter Range:
- The Double-Convex Lens is available in a wide range of diameters, from 3 mm to 250 mm, offering flexibility for various applications that require different focal lengths and beam control. Smaller diameters are ideal for precision optical instruments, while larger diameters can be used in high-power laser systems or larger optical setups.
Diameter Tolerance:
- The lens comes with a ±0.02 mm diameter tolerance, ensuring precision in the manufacturing process. This tight tolerance is essential for applications requiring high precision and performance.
Thickness Tolerance (Tc Tolerance):
- With a ±0.05 mm tolerance in thickness, the lens offers high consistency in its optical performance. This level of precision is important for maintaining accurate focal lengths and ensuring that the lens performs optimally in high-precision systems.
Clear Aperture:
- The clear aperture is guaranteed to be greater than 90% of the lens’s diameter. This ensures that the optical system has maximum light transmission, with minimal obstructions or distortions, making the lens suitable for critical imaging and focusing applications.
Surface Quality:
- The lens features a surface quality of 10-5 or better, which means the lens surface is virtually free from defects such as scratches and pits, providing clear and undistorted light transmission. This level of surface quality is critical for high-performance optical systems, especially those involving high-precision imaging and laser systems.
Flatness:
- The flatness of the lens is λ/8 at 632.8 nm, indicating that the deviation from perfect flatness is extremely low. This ensures that the lens will perform well in applications requiring high optical accuracy, such as interferometry or precision imaging.
Centration:
- The centration tolerance of the lens is 30 arc seconds, ensuring that the optical axis of the lens is aligned with high precision. This is crucial for maintaining accurate focus and alignment in optical systems, particularly in systems that require high accuracy, such as beam-shaping applications.
Coatings:
- The lens can be coated with anti-reflection (AR) coatings or high-reflection (HR) coatings, depending on customer requirements. These coatings help improve the lens’s transmission by minimizing reflections, or increase reflectivity for specific wavelengths, as needed. Custom coatings can be designed to match the optical system’s needs, enhancing performance and efficiency.
Applications:
Double-convex lenses are commonly used in systems that require precise light focusing or collimation. Some typical applications include:
- Beam shaping in laser systems
- Optical imaging in cameras, microscopes, and telescopes
- Light collimation in various optical systems
- Focusing and deflecting beams in scientific experiments and industrial applications
- Medical and diagnostic equipment where accurate light manipulation is necessary
Key Features:
- High Precision: With tight tolerances and excellent surface quality, these lenses are suitable for high-accuracy optical applications.
- Versatility: Available in a wide diameter range, these lenses can be tailored to fit diverse optical system requirements.
- Customizable Coatings: Coating options like AR and HR coatings allow customization for specific transmission or reflection properties.
In summary, the Double-Convex Lens offers exceptional optical performance, with precise specifications for diameter, thickness, surface quality, and coatings, making it a highly reliable component for a wide range of scientific, industrial, and optical applications.