Single-handwheel focusing seat assembly for telescope

Abstract

The invention relates to a single-handwheel focusing seat assembly for a telescope, which comprises an outer lens barrel, an inner lens barrel, a rack, a gear and a handwheel, wherein the inner lens barrel is installed in the outer lens barrel in a telescopic mode, the rack is axially installed at the outer side of the inner lens barrel through screws, one side of the outer lens barrel is designedwith a bulge, the bulge is provided with a long slot, the internal part of the bulge is provided with a limiting adjustment block, the limiting adjustment block is designed with a rotating shaft, therotating shaft is rotatably fixed through a pressing piece, one end of the rotating shaft is connected with the gear, the gear is in meshed connection with the rack, and the other end of the rotatingshaft passes through the long slot and is connected with the handwheel. The single-handwheel focusing seat assembly for the telescope has the advantages that the structure is simple and convenient because the single handwheel is adopted, the occupied space is small, the tooth orientation of the rack is tangent to the inner lens barrel, and the single handwheel only needs to give a tangential force to the inner lens barrel when controlling the gear to drive the rack. According to the single-handwheel focusing seat assembly for the telescope, the gap between the gear and the rack does not affect the telescopic deviation of the inner lens barrel, and the field of view is ensured to be stable.

Description

technical field [0001] The invention relates to the field of telescopes, in particular to a single-hand wheel focusing seat assembly for a telescope. Background technique [0002] A telescope is a visual optical instrument used to observe distant objects. It can magnify the small opening angle of the distant object by a certain magnification, so that it has a larger opening angle in the image space, making it impossible to see clearly with the naked eye. Resolved objects become clearly identifiable. Therefore, the telescope is an indispensable tool in astronomy and ground observation. It is an optical system that keeps the incident parallel beams parallel to exit through the objective lens and eyepiece. According to the principle of the telescope, it is generally divided into three types. An instrument that observes electromagnetic radiation from distant objects by collecting electromagnetic waves is called a radio telescope. In daily life, a telescope mainly refers to an...

AI Technical Summary

Problems solved by technology

[0003] Due to the structural design problems of the two-hand wheel focusing base of the telescope in the past, long-term use will lead to serious field of view drift during use.

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