Graduation brightness adjusting system

Abstract

The invention discloses a graduation brightness adjusting system, which includes a control circuit, a filter circuit and an illumination circuit. The control circuit includes a control chip and an input circuit. The control chip is at least provided with six signal processing ports, a grounding port and a power supply port. The input circuit is provided with at least two adjusting keys. The filter circuit is formed by at least one capacitor. The illumination circuit is formed by an illuminating lamp unit, a rectification resistor and a triode. The graduation brightness adjusting system has the characteristics of wide adjusting intervals and high adjusting precision. The success rate enabling proper brightness to be adjusted well once is greatly increased, so the observation efficiency is improved, and the aiming time is shortened. Moreover, a drawback of obvious brightness fluctuation is overcome, visual fatigue of an operator is effectively alleviated and the eyesight of the operator is protected.

Description

technical field [0001] The invention relates to a division brightness adjustment system, which belongs to the technical field of observation photoelectric application. Background technique [0002] In the dark background with insufficient light such as at night, when using optical equipment for measurement or aiming, the measuring tool itself must have the necessary lighting function to ensure that the operator can clearly and accurately identify the corresponding position of the target object on the measuring tool. Various types of scale data are read, but due to the great variability in light distribution and target reflective performance, it is necessary to have the ability to flexibly adjust the brightness of the optical pointing and measuring equipment used to adjust the brightness of the target. , in order to solve this problem, the brightness adjustment function of the reticle lighting of the traditional optical aiming and measuring equipment mainly realizes the purpo...

AI Technical Summary

Problems solved by technology

[0002] In the dark background with insufficient light such as at night, when using optical equipment for measurement or aiming, it is required that the measuring tool itself must have the necessary lighting function to ensure that the operator can clearly and accurately identify the corresponding position of the target object on the measuring tool. Various types of scale data are read, but due to the great variability in light distribution and target reflective performance, it is necessary to have the ability to flexibly adjust the brightness of the optical pointing and measuring equipment used to adjust the brightness of the target. , in order to solve this problem, the brightness adjustment function of the reticle lighting of the traditional optical aiming and measuring equipment mainly realizes the purpose of controlling the brightness of the reticle lighting by adjusting the resistance value of the current-limiting potentiometer. Although the traditional adjustment method can be used to a certain extent However, it also has a relatively narrow brightness adjustment range, and at the same time, it is difficult to grasp the best brightness potentiometer resistance range, and the control accuracy is poor, so it is extremely difficult to adjust the potentiometer resistance to the best value at one time. The brightness resistance range requires repeated adjustment and verification many times, resulting in uneven brightness during the adjustment process, and obvious flickering or flickering fluctuations are easy to appear. On the one hand, the efficiency of the measurement work is greatly reduced, and on the other hand On the other hand, it is easy to cause visual fatigue of users, and long-term use is easy to cause serious damage to the eyesight of users. Therefore, it is urgent to develop a new reticle brightness adjustment system to overcome many shortcomings of traditional equipment.

Images