Optical microscope structure characteristics
The construction of an ordinary optical microscope is mainly divided into three parts: mechanical part, illumination part and optical part.
◆Mechanical part
Microscope structure
(1) Mirror base: It is the base of the microscope to support the whole mirror body.
(2) Mirror column: It is the upright part above the mirror base to connect the mirror base and the mirror arm.
(3) Mirror arm: one end is connected to the mirror column and the other end is connected to the mirror tube, which is the part of the hand grip when taking and placing the microscope.
(4) Mirror tube: Attached to the front of the mirror arm, the upper end of the tube contains the eyepiece and the lower end contains the objective lens converter.
(5) Objective lens converter (rotator) referred to as "rotator": connected to the bottom of the prism shell, can be freely rotated, there are 3-4 holes on the disk, is the installation of the objective lens parts, rotating the converter, you can switch to a different magnification of the objective lens, when you hear the sound of touching the knocking sound, before you can observe, at this time, the optical axis of the objective lens is exactly aligned with the center of the aperture. At this time, the optical axis of the objective lens is exactly aligned with the center of the through-hole, and the optical path is connected. After the conversion of the objective lens, do not allow the use of coarse adjuster, only fine adjuster, so that the image is clear.
(6) Mirror stage (carrier stage): below the lens barrel, the shape of the square, round two kinds, used to place the slide specimen, the center of the aperture, the microscope we use is equipped with a slide specimen propeller (pusher) on the stage, the propeller on the left side of the spring clip, used to clamp the slide specimen, under the stage has a propeller adjusting wheel, so that slide specimens for the left and right, forward and backward direction of the movement.
(7) Adjuster: It is a spiral of two sizes mounted on the mirror column, which moves the mirror table up and down when adjusted.
(1) Coarse regulator (coarse collimator spiral): the large spiral called coarse regulator, when moving the mirror stage for rapid and large-scale lifting and lowering, so it can quickly adjust the distance between the objective lens and the specimen to make the object presented in the field of view, usually in the use of low magnification, the first use of coarse regulator to quickly find the object.
② fine adjuster (fine focusing spiral): a small spiral called fine adjuster, moving the mirror stage can be slowly raised and lowered, mostly used in the use of high-magnification lenses, so as to get a clearer image, and through the observation of different levels of the specimen and different depths of the structure.
