The experience of optical system aberration analysis using ZEMAX software demonstrates the necessity to acquire and combine data from different text windows such as windows of Longitudinal Aberration, Ray Fan, Field Curvature and Distortion, Lateral Colour etc. This routine operation takes much time and significantly slows down the design process. Moreover, an engineer should always remember about some features of data interpretation connected with different calculation algorithms in different optical schools. It instigated us to develop a macro that forms one-window aberration summary for afocal systems with proper data interpretation according to domestic optical scientific school.

The report tells about the design of a middle wave infrared continuous-zoom imaging optical system. To capture the image in an «eye-type» infrared optical system a multi-element sensor is used. To increase the contrast of the thermal image the sensor is equipped with a cold aperture. The use of an optical system based on the continuous-zoom lens makes it possible to solve the problems of object detection and identification more effectively but requires taking into account some features of varifocal lenses. The optical system being analyzed in the report includes front zoom objective system and secondary imaging system. The front zoom optical system is composed of four groups and provides the focal length that is continuously changed with a large zoom ratio (15–20X) under the condition of a constant total length of the system. The secondary imaging system is designed for zoom system exit stop and sensor cold stop conjugation. The design technique represents analytical expressions and equations to obtain optical parameters of the front and secondary system components and the motion curves for movable groups.

The problem of recognition and identification of traces of foreign substances on the surfaces of hard-to-reach cavities of complex industrial facilities is considered. The developed multispectral video endoscope will allow to scanning facility areas in different spectral bands, which will allow to distinguishing traces of different substances based on spectral properties. The outstanding feature of this device is that it is capable to perform simultaneous registration of all optical, spectral, and spatial information, which makes it unnecessary to fix the probe rigidly relative to a facility. The optical properties of the device as a whole and of its spectral registering module are described. Image quality analysis is conducted. It is noted that such devices may be potentially used for non-destructive testing of internal cavities of industrial devices and systems.

No abstract