Resolution is one of the important indexes of examining optical sighting telescope performance. Traditional and subjective test methods generally adopted auxiliary visual instrument reading to achieve resolution test, which was greatly affected by subjective factors, and easy fatigue affected test precision, and it didn’t objectively and quantitatively reflect the resolution of measured sighting telescope. Taking aim at the test requirements, on the basis of overcoming the shortcomings of traditional and subjective test methods, and this paper designed a set of modern test system for resolution of white-light sighting telescope, which employed automatic focusing technology, CCD imaging technology, precision machinery technology, automatic control technology and computer image acquisition technology. Through automatic focusing of zoom lens and man-computer interaction, computer displayed and saved results automatically, which eliminated subjective error of the traditional and subjective test method. The experimental results showed that the test precision of resolution was 0.24″, which achieved the technical specification less than 0.5″, and the test accuracy was ensured.
In response to the accuracy of most autocollimator measurement is not high, and limited to one-dimensional static
measurement., we designed a kind of high-precision photoelectric self-collimation measurement system which based on
position sensitive detector(PSD). The system uses a return-type optical path to reduce equipment size, and the use of
neural network based on the PSD for the non-linear correction. When the distance is 10m, it can achieve the
measurement range ± 4', full-range measurement error of less than 0.1", measurement resolution of less than 0.01" and
other technical indicators.
This paper presents a three-dimensional video laparoscopy is component binocular stereo endoscope optical system,
dual-CCD imaging system and time-division stereo display system, it apply the dual-optical path imaging system, timedivision
a stereo display system to make the image refresh frequency achieve 100 Hz, the image without blinking and
achieve the required of real-time stereo display in minimally invasive surgery . The system can be used in minimally
invasive surgery, and also can be applied to hole detection technology.