Field diaphragm and pyrometer optical sighting device

Abstract

The embodiment of the invention discloses a field diaphragm. The obverse side of the field diaphragm is a reflecting mirror face, the other part is covered with a black coating, and division lines are arranged on the obverse side of a field diaphragm body. According to the field diaphragm, the division lines and the field diaphragm are located on the same plane, the relative positions of the division lines and the field diaphragm are invariable, and therefore the problem that in the prior art, the imaging effect is influenced due to the fact that the relative positions of the field diaphragm and the division lines change is avoided. The invention further discloses a pyrometer optical sighting device including the field diaphragm. When the device is used, the relation positions of the division lines and the field diaphragm do not need to be installed and adjusted, and more precise sighting of the pyrometer optical sighting device is guaranteed.

Description

technical field [0001] The invention relates to an optical aiming device of a pyrometer, in particular to a field diaphragm. Background technique [0002] In the optical aiming system of the pyrometer, it is necessary to use the reticle to mark the relative position of the target imaging. Usually, a discrete reticle with a reticle is installed in the optical path of the aiming system. This scheme requires design, installation and commissioning And other technical means to realize the optical conjugation of the reticle and the field diaphragm. Existing discrete reticles are usually installed in or before the eyepiece assembly of the aiming system. The position of the discrete reticle is different from that of the field diaphragm, so the optical path from the discrete reticle to the eyepiece is different from the optical path from the field diaphragm to the eyepiece. During the use of the optical aiming system of an optical instrument, the discrete reticle and The relative p...

AI Technical Summary

Problems solved by technology

The position of the discrete reticle is different from that of the field diaphragm, so the optical path from the discrete reticle to the eyepiece is different from the optical path from the field diaphragm to the eyepiece. During the use of the optical aiming system of an optical instrument, the discrete reticle and The relative position of the field diaphragm may change, causing the position of the discrete reticle to move in the field of view. Especially in long-term use, the position of the discrete reticle will change greatly, making the separation between the discrete reticle and the field diaphragm Optical conjugation cannot be ensured, thus affecting the normal use of optical instruments

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