![]() Generally, all reticles of the glass material have a certain thickness, and the tick marks of the reticle is on top of the reticle to ensure that all the tick marks are in the eyepiece focal plane (10 mm below the eyepiece) when using the reticle of different thickness. The tick marks of the reticle are all on top of the reticle. If this"fix ring" is missing in the eyepiece tube, please contact your service provider to describe the above situation, and some service providers can provide this fix ring. There is also a"plug ring type"fix ring, usually made of plastic material, which is elastic and inserted into the eyepiece tube, and then stuck on the inner wall of the eyepiece tube to press the reticle. There are generally two ways for this fix ring: one is that there is the thread on the inner wall of the eyepiece tube, a metal fix ring with a card slot for positioning when using a screwdriver, by rotating the screwdriver, the reticle is pressed on the inner wall of the eyepiece. Whether it has "Eyepiece Reticle Fix Ring". The reticle is installed in this position to be clear. This position is the focal plane of the eyepiece. Generally, the eyepieces are located 10mm below the lower lens. Whether the tube wall of the eyepiece has a “mounting/installation surface” on which the reticle is placed. To install the reticle yourself, first make sure that the eyepiece of the microscope can be self-removed from the microscope eyepiece tube (generally, for microscopes, all their eyepieces can be removed, and some need to loosen the screws fastened on the microscope eyepiece tube to remove the eyepiece.) For eyepieces on which reticle can be installed, you should pay attention to the following features and requirements: 1. Since the requirements are different, users can also buy different reticle, and then install it on their own microscope. Reticle Installation The reticle is installed in the eyepiece tube, and some eyepieces have been installed with reticle before leaving the factory. This is only suitable for use in strongly repetitive microscope observations and work in order to be efficient. Secondly, each time when the objective lens with different magnifications for observation is changed, it needs to be re-calibrated. First, it is necessary to constantly convert the reading value and the calibration value of the eyepiece. This method is relatively more complicated. Then, the eyepiece reticle is overlapped with the scale pattern of the objective micrometer, so that the 0 points of the two are aligned, a scale value with a completely coincident scale is found backward, the grid values of the reticle eyepiece and the objective micrometer are respectively read and converted, and then the calibration value is used as the actual measurement value of the eyepiece reticle. The method is: first, place an objective micrometer on the stage, after the focus is clear, record the magnification number of the objective. In addition, for eyepiece reticle measurement, it can also be calibrated first by the objective micrometer before measurement. Therefore, for the actual numerical value, the actual size of the image should be divided by the magnification of the objective lens. In short, after the object is being magnified by the objective lens, the real image of the object reaches the focal length of the eyepiece (10 mm below the fixed surface of the eyepiece), which is exactly the position of the eyepiece reticle, and what the eyepiece reticle reads is actually the image of the object after being magnified by the objective lens. However, for eyepiece reticle, one cannot read directly the number under the microscope, but convert firstly the multiple after magnification of the microscope objective lens. Between each grid it is also equidistant. Common types of eyepiece reticle are: straight, cross, mesh, circle, angle or combination shape. Eyepiece reticle has patterns of various shapes and sizes. The reticle measurement is a "non-contact measurement", that is, the measurement value is obtained by measuring the optical image without touching the object to be measured, which is very suitable for some small specimens, organisms, and irregular objects. Reticle is mainly used for the measurement of length, angle or area of the object to be measured under the microscope. Based on different applications, reticle can be used for measurement, calibration or aiming. Reticle is an optical component with a certain mark placed inside the eyepiece. Reticle Close Λ Reticle is generally also referred to as eyepiece reticle, or reticule, graticule, cross hair. ![]()
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