Product Case Studies

Zinc selenide lenses are commonly used as collimators for laser applications, such as biomedical and military applications. These lenses are also particularly suitable for applications of high-power CO or CO2 lasers. In addition, they are sufficiently transparent in the visible light range, making them applicable for visible beam calibration, although back reflections are more pronounced.

Characteristics of flat convex lenses

A plano convex lens has one flat surface and one convex surface. This design allows the lens to focus the incident light onto a single point, making it suitable for focusing the beam onto small focal points, such as in laser systems. Zinc selenide plano convex lenses are particularly suitable for infrared lasers, such as carbon dioxide lasers, as they can effectively transmit laser beams with a wavelength of 10.6 µ m.

application area

• Laser cutting and engraving：Zinc selenide plano convex lenses are commonly used in CO2 laser cutting and engraving machines, which can accurately focus the laser beam and improve processing accuracy and efficiency.
• medical equipment：In infrared medical equipment, it is used to focus or expand infrared light for treatment and diagnosis.
• Infrared imaging：In infrared cameras and thermal imagers, it is used to focus infrared light to obtain clear images.
• scientific research：In the field of scientific research, it is used for infrared spectroscopy and other experiments that require precise control of infrared light.

advantage

• High transmittance：Zinc selenide has high transmittance in the infrared band, especially in the range of 2-12 µ m, making it suitable for various infrared applications.
• Low absorption coefficient：In its transmission band, the absorption coefficient of zinc selenide is low, reducing energy loss and improving system efficiency.
• Good thermal stability：Zinc selenide can withstand high temperatures and is suitable for high-power laser systems.
• chemical stability：Zinc selenide has good chemical stability and strong resistance to environmental changes and chemical erosion.

note

Although zinc selenide flat convex lenses have many advantages, the following points should also be noted when using them:

• brittleness：Zinc selenide material is brittle and prone to cracking, requiring careful handling and maintenance.
• cost：Compared to some other optical materials, the cost of zinc selenide is relatively high, which may affect the material selection for cost sensitive projects.
• Cleaning and protection：In order to maintain the performance of the lens, it is necessary to regularly clean the surface of the lens to avoid scratches and contamination.

conclusion

In general, zinc selenide plano convex lens is a very important optical component in infrared optical systems, especially in applications that require high transmittance and low absorption coefficient. Through reasonable design and use, it can significantly improve the performance and efficiency of the system.