No abstract

No abstract

The features of F-Theta lenses, the values of the characteristics of the most common models are considered. The conditions for achieving the F-Theta law and the telecentric run of the main rays in the optical scheme of the lens are identified. A formula for the distortion required to provide a linear law, depending on the angle of the inclined beam of rays relative to the optical axisis given. The criteria for the permissible error of deviation from the exact compliance with the linear law are formulated. The relevance of the development of new optical systems for F-Theta lenses is justified.

No abstract

The improvement of classical telescopes designed to observe distant objects is currently associated with the provision of operating modes with interchangeable magnification and the possibility of photo and video recording. The purpose of the paper is to propose circuit designs for optical systems of high-magnification pancratic telescopes and substantiate the possibility of their use in engineering. The paper is based on the engineering design of two variants of telescope optical systems with a magnification of 20 to 60 times, in the first of which the pancratic change of magnification is provided by the movements of the components in the ocular part, in the second - in the objective part. The characteristics of pancratic telescopes are considered. It was revealed that in modern models the pancratic change of magnifications is carried out in the ocular and objective parts of the system. Computer simulation methods were used to synthesize optical schemes in the paraxial approximation, followed by the implementation of systems with finite apertures and thicknesses. The developed systems can be used at domestic enterprises of optical instrumentation.