Planetary microscope

Abstract

The invention relates to a planetary microscope. A microscope arm of the microscope is provided with a light source support, a glass slide rotary disk, an objective lens rotary disk, a lens cone arm and an ocular lens rotary disk in sequence. The planetary design is adopted in a glass slide converter on the glass slide rotary disk, the planetary design is adopted in a glass slide on the glass slide converter, and the planetary structure is applied to the objective lens rotary disk and the ocular lens rotary disk at the same time, different magnifications of observation of different specimens can be met, and the specimen observing range is wider. Due to the fact that objective lenses are arranged on the objective lens converter in a planetary mode, the problem that the distribution circles of threaded holes of the objective lens converter with six or more holes in the prior art are enlarged is solved, and the centering precision and parfocal precision of the objective lenses are guaranteed. Meanwhile, a dip angle adjusting bolt handle is used for adjusting the angle of a lens arm and a lens base, the fitness of the observer eyes is guaranteed, the observing accuracy and precision of an observer are improved, the structure is simple, and manufacturing cost is low.

Description

technical field [0001] The invention relates to the technical field of optical instruments, in particular to a planetary microscope. Background technique [0002] A microscope is an instrument used to magnify tiny objects so that they can be seen by the naked eye. In a modern microscope, the objective lens converter is a device for installing and replacing the objective lens. It is one of the important mechanical structures to ensure the precision of the microscope. Converter to switch to a high-magnification lens. A general optical microscope has multiple replaceable objective lenses, so that the observer can change the magnification as needed, and exchange between objective lenses of different magnifications. At the same time, the number of threaded holes for installing objective lenses can reflect The level and grade of a microscope. Among them, the objective lens converter of the metallographic microscope is an important part that requires very high mechanical precision...

AI Technical Summary

Problems solved by technology

[0006] 2. The centering accuracy of converters designed by foreign developed countries has reached the micron level, while most of them in our country are still 0.01-0.02mm, and the ones less than 0.01mm are rarely designed and processed into the threads of objective lens converters with more than six holes. The distribution circle of the center of the hole is enlarged, the centering accuracy and parfocal accuracy are difficult to guarantee, and the processing is difficult

[0007] 3. The positioning groove of the objective lens converter is easy to wear, the conversion plate or the fixed plate is easy to deform, and the shaft hole is easy to loosen, etc., resulting in positioning failure, and the objective lens converter is processed in a complete set with the bowl head, which cannot be interchanged. The replacement of components can solve the problem, the production cost is high, and the assembly is difficult

[0008] 4. The objective lens converter is generally made of copper alloy, the material is soft, and the thread is easily damaged by force. After the damage, the axis of the optical system will be tilted, and the parfocal reference of the objective lens will be destroyed, resulting in a decrease in image quality and even scrapping.

[0009] 5. For open microscopes, the lenses inside the eyepieces and objective lenses are easily polluted or moldy, and the surface of the dust-proof optical components is easy to fall into dust, which not only affects the passage of light, but also generates large stains after being enlarged by the optical system , impact observation

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