Micro-displacement image acquisition platform combining uniform light source and contrast-enhancing light source

Abstract

The invention discloses a micro-displacement image acquisition platform combining a uniform light source and a contrast-enhancing light source. The light source assembly includes an LED uniform surface light source assembly and a special light source system. A table assembly, a plane optical reflector assembly and a Fresnel lens, the plane optical reflector assembly is installed at one end of the sliding table assembly, and the variable diaphragm LED moving light source assembly slides on the slide table assembly. In the present invention, the LED uniform surface light source system and the special light source system can be switched between the two through remote and local control, and the light flux can be adjusted through the variable diaphragm to obtain an appropriate field of view range, and the LED light source assembly can be adjusted to The distance of the mirror enables the light source to be imaged at the entrance pupil of the lens through the condenser, while the optical flat mirror changes the light path and reduces the height of the optical system, thus reducing the volume of the new platform.

Description

Technical field [0001] The invention relates to a microscopic displacement image acquisition device, in particular to a microscopic displacement image acquisition platform combining a uniform light source and a contrast-increasing light source. Background technique [0002] At present, one-time extraction in oil extraction will result in a large amount of remaining oil geological reserves. According to the size of the distribution, the remaining oil is divided into two categories: micro-remaining oil and macro-remaining oil. The microscopic remaining oil belongs to the pore-scale remaining oil. Because of its small scale, it is not convenient for direct analysis and research. The study of microscopic remaining oil through displacement experiments is of great significance for correctly revealing the distribution of remaining oil and improving oil recovery. [0003] In the micro-displacement experiment, a glass etching model was made by etching the microscopic image of the rock sli...

AI Technical Summary

Problems solved by technology

In the micro-displacement experiment, in order to achieve the uniformity of image brightness, LED uniform surface light source is generally used, but if only LED uniform surface light source is used, the imaging clarity of the edge of the hole will be reduced

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