SQB_400_CTP Optoelectronics

Optics have been in use since ancient times, and lenses are an important part of optical systems. The SQB 400 CTP is an exceptionally effective and powerful lens designed specifically for use in various applications areas. This article will look at the application fields and the working principle of the SQB 400 CTP.

Application Fields

The SQB 400 CTP is primarily used for high-precision photolithography for microfabrication processes. It is also commonly used in optical microscopy and fiber laser applications. The lens features a 400mm focal length and an extreme telecentric design that enables exceptional resolving power and a full-field image. It is ideal for use in single dual/quad detector cameras and even for the demanding precision oblique illumination.

In photolithography, the lens is used for patterning and imaging very small objects such as semiconductor components, while in optical microscopy it is utilized for imaging microscopic elements such as cells. With fiber laser applications, the lens is used for cutting and welding metal and other materials by focusing high-power laser beams in precise areas.

Working Principle

The working principle of the SQB 400 CTP is mainly based on two essential features. First, the 400mm focal length enables superior light gathering capabilities, allowing high-resolution imaging with exceptional clarity and contrast. Second, the SQB 400 CTP is designed with an extreme telecentricity which ensures precisely and accurately positioned elements at all times.This telecentric design essentially ensures that the light coming from the object remains at the same size regardless of its distance from the lens. This allows for optimal image quality at all times, even if the object is slightly off center. Additionally, the telecentricity of the lens also decreases the geometric distortion of the image, allowing for precise, distortion-free imaging.

The lens also features a fast, precise focusing mechanism which allows for quick and convenient adjustments to focus and zoom. This is especially beneficial when it comes to photolithography processes as it allows for the exact imaging of very small objects with minimal time.

Overall, the SQB 400 CTP is an incredibly powerful and efficient lens designed for use in a variety of applications. Thanks to its extreme telecentric design and its fast, precise focusing mechanism, the lens provides excellent image quality and accuracy in various scenarios.