Prism light guide mechanism for optical lens barrel and visual optical axis indication system

Abstract

The invention discloses a prism light guide mechanism for an optical lens barrel and a visual optical axis indication system. The objective of the invention is to solve the problem that an indicationlaser cannot be reliably positioned, namely the quantitative control cannot be carried out, the randomness of the experiment is relatively high, the experiment efficiency is low, particularly, when the indication laser needs to be internally reflected, a light blocking phenomenon also occurs, and the experiment effect is seriously influenced. The indication laser outside the optical lens barrel can be guided into the central optical axis inside the optical lens barrel through the interaction of a reflecting light prism and an incident light prism of which the mirror surfaces are opposite and the included angle is 90 degrees, and the central optical axis of the optical lens barrel is calibrated through the external indication laser, so that reliable positioning of the central optical axis is realized, experiment errors are reduced, experiment randomness is reduced, and experiment efficiency is improved.

Description

technical field [0001] The invention relates to an optical lens barrel, in particular to a prism light guide mechanism and a visual optical axis indicating system for the optical lens barrel. Background technique [0002] In optical experiments, when the optical axis of the optical path is aligned and the recording medium is placed, it is often necessary to fine-tune the light source to realize the alignment and aiming process. In the prior art, an external pointing laser is basically used to indicate the optical axis, so as to achieve alignment and alignment Yes, but the existing pointing laser cannot be positioned reliably, that is, it cannot be quantitatively controlled, which leads to a large randomness of the experiment and causes problems such as low experimental efficiency. More importantly, when the pointing laser needs to be reflected internally, there is still the problem of light blocking, which seriously affects the experimental results. Contents of the inventi...

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Problems solved by technology

[0003] The present invention aims to solve the problem that the pointing laser existing in the prior art cannot be positioned reliably, that is, it cannot be quantitatively controlled, which leads to greater randomness of the experiment and low efficiency of the experiment, especially when the pointing laser When internal reflection is required, there will be light blocking phenomenon, which seriously affects the technical problems of the experimental effect, and a prism light guide mechanism and a visual optical axis indication system for optical lens barrels are provided

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