CN105158874B - A kind of ganged focusing device and its application method for optical device - Google Patents

Abstract

The invention discloses a kind of ganged focusing device and its application method for optical device, including host computer, the host computer is connected with described information processing module, and described information processing module is connected to focusing motor, light bar motor, zoom motor, laser lens motor and laser；The circuit control panel is internally integrated CAN communication module, the zoom lens AD sampling modules being connected with the zoom lens and the laser lens AD sampling modules being connected with the laser lighting camera lens；The zoom lens is provided with lens focusing gear, column adjustment gear and mirror zoom gear；The laser lighting camera lens includes the laser lens motor, includes the optical module and leading screw of regulation laser divergence angle.Compared with prior art, the present invention is compact-sized, and cost is cheap, high reliability, is easy to carry out far and near visual field using monitoring most clear observation using the ganged focus of zoom lens and laser lighting camera lens, improves the utilization ratio of equipment.

Description

A kind of ganged focusing device and its application method for optical device

Technical field

The present invention relates to optical devices technologies field, and in particular to a kind of ganged focusing device for optical device and its Application method.

Background technology

CCD（Charge coupled cell）The illumination of infrared LED lamp light filling is coordinated to can be used easily round the clock under low-light (level) environment Overview function, it is widely used in field of video monitoring.But because light-supplementing system is all with fixed illumination visual angle, if thinking mostly Monitored using zoom lens using far and near target observations, now in the environment of low-light (level), observation specific range visual field compares appearance Easily, but cross and light filling visual angle deficiency closely occurs, excessively remote visual field occurs fuzzy.Shone with zoom lens and laser The ganged focusing device of bright mirror head can be very good using low cost, and reach that visual field is adjustable and monitoring function round the clock.

The content of the invention

For drawbacks described above, it is an object of the invention to provide a kind of ganged focusing device for optical device, the device Compact-sized, cost is cheap, high reliability, and by the linkage of zoom lens and laser lighting camera lens, to reach, visual field is adjustable and daytime Night monitoring function.

To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of ganged focusing device for optical device, Including host computer, message processing module, circuit control panel, zoom lens and laser lighting camera lens, the host computer and the letter Breath processing module is connected, and described information processing module is connected to focusing motor, light bar motor, zoom motor, laser lens Motor and laser；The circuit control panel is connected with described information processing module, and the circuit control panel has been internally integrated CAN communication module, zoom lens AD sampling modules and laser lens AD sampling modules；The zoom lens is provided with lens focusing tooth Wheel, light bar adjustment gear and lens zoom gear, the lens focusing gear, the light bar adjustment gear and the lens zoom Gear is respectively by the focusing motor, the light bar motor and zoom motor engagement driving, wherein the lens zoom Gear has also meshed with the first variable potentiometer, and first variable potentiometer is connected with the zoom lens AD sampling modules；Institute Stating laser lighting camera lens includes the laser lens motor, includes the optical module and leading screw of regulation laser divergence angle, described The optical module of regulation laser divergence angle is located on the laser, and the optical module of the regulation laser divergence angle includes light Eyeglass is learned, the optical mirror slip is connected with the second variable potentiometer, and second variable potentiometer is adopted with the laser lens AD Egf block is connected, and leading screw described in the laser lens motor linkage rotates, and the leading screw is provided with sliding block, the sliding block with it is described Optical mirror slip is set to one, and the leading screw both ends are respectively equipped with limit switch protection, and the light source of the laser lighting camera lens passes through The laser provides；The AD values that the zoom lens AD sampling modules obtain with the laser lens AD sampling modules pass through institute The analysis of message processing module is stated, drives the ganged focus of the laser lighting camera lens and the zoom lens, realizes that laser shines It is bright to match with zoom lens visual field size.

Preferably, the zoom motor, focusing motor, light bar motor and laser lens motor operationally use PWM type of drive, and it is respectively connected with time limit control protective unit.

The application method of a kind of ganged focusing device for optical device, it is characterised in that comprise the following steps：

1）Under low-light (level) environment, the laser normal work, the host computer receives visual field switching command, by described Message processing module analysis feedback, after feedback is correct, reads the zoom lens AD sampling modules and the laser lens AD is adopted The AD sampled values for the variable potentiometer that egf block connects respectively simultaneously go out current field state by the CAN communication module feedback, The circuit control panel drives the direct current generator of the zoom lens and the laser lighting camera lens to turn respectively according to AD sampled values It is dynamic；When the zoom lens is switched to the working condition that instruction requires, the laser lighting camera lens links regulation therewith, makes not Be full of laser beam with visual field, adjusted when laser lighting camera lens light angle to when matching with visual field size, ganged focus into Work(, most clear observation is carried out to the target of far and near visual field thereby using monitoring；

2）Under good illumination environment, the laser is stopped, described so as to which the laser lighting camera lens is stopped Zoom lens works independently.

The beneficial effects of the invention are as follows：The zoom motor, focusing motor, light bar motor and laser lens motor use PMW modulates type of drive, and the appropriate regulation motor rotating speed of energy makes zoom lens visual field and laser lens scattered laser beam to proper states Angle pace of change matching, the time limit control device being additionally provided with can timely controlled motor rotation time, raising zoom lens and laser Illuminate the service life of camera lens；The zoom lens AD sampling modules pass through described variable with the laser lens AD sampling modules Potentiometer obtains AD sampled values, and makes the beam divergence angle of the driving laser lighting camera lens and visual field size according to AD sampled values Reach consistent；The laser lens motor linkage leading screw rotates, and the sliding block above the leading screw can be former with the rotation of motor After move, so as to according to different distance, be effectively integrated using laser lighting, the sliding block and optical mirror slip, so as to the light Learning eyeglass can also move forward and backward, and laser divergence angle will change, until matching to visual field size；The AD samples mould Block can feed back the field conditions information of the zoom lens and the laser lighting camera lens at any time, be easy to host computer according to feedback letter Cease to perform every order；The present invention can work independently under low-light (level) environment and good illumination environment respectively, can be in certain journey Laser lighting mechanism usage time is reduced on degree, reaches the purpose for improving service life and energy-conservation；The leading screw both ends are set respectively Limit switches are protected, and under out-of-control condition, motor driving energy powers off safely anti-limited slip block, improves the resistance to of laser lens motor The property used；The optical module of the regulation laser divergence angle, can change beam divergence angle size, and angle is smaller, and illumination intensity is stronger, be adapted to remote Range blanking, on the contrary beam divergence angle is bigger, illumination intensity is weaker, is adapted to closely illuminate, when zoom lens visual field adjusts, laser Camera lens ganged focus therewith is illuminated, when laser divergence angle is adjusted to when matching with visual field size, using monitoring to far and near visual field Target carry out most clear observation.

Compared with prior art, the present invention is compact-sized, and cost is cheap, high reliability, is shone using zoom lens and laser The linkage of bright mirror head is easy for, using the target in the far and near observation visual field of monitoring, improving the utilization ratio of equipment.

Brief description of the drawings

Below in conjunction with the accompanying drawings, the structure and feature of the present invention are described in further detail.

Fig. 1 is the hardware composition schematic diagram of the present invention.

Fig. 2 is the operating diagram of heretofore described zoom lens.

Fig. 3 is the operating diagram of heretofore described laser lighting camera lens.

Fig. 4 is the circuit theory diagrams of the present invention.

Embodiment

In Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of ganged focusing device for optical device, including host computer, information processing Module, circuit control panel, zoom lens and laser lighting camera lens, the host computer is connected with described information processing module, described Message processing module is connected to focusing motor, light bar motor, zoom motor, laser lens motor and laser；The electricity Road control panel is connected with described information processing module, and the circuit control panel has been internally integrated CAN communication module, zoom lens AD sampling modules and laser lens AD sampling modules；The zoom lens is provided with lens focusing gear, light bar adjustment gear and mirror Head zoom gear, the lens focusing gear, the light bar adjustment gear and the lens zoom gear pass through the tune respectively Burnt motor, the light bar motor and the zoom motor engagement driving, wherein the lens zoom gear also meshed with first can Become potentiometer, first variable potentiometer is connected with the zoom lens AD sampling modules；The laser lighting camera lens includes The laser lens motor, include the optical module and leading screw of regulation laser divergence angle, the light of the regulation laser divergence angle Learn component to be located on the laser, and the optical module of the regulation laser divergence angle includes optical mirror slip, the optical frames Piece is connected with the second variable potentiometer, and second variable potentiometer is connected with the laser lens AD sampling modules, described to swash Leading screw described in light microscopic head motor linkage rotates, and the leading screw is provided with sliding block, and the sliding block is set to one with the optical mirror slip, The leading screw both ends are respectively equipped with limit switch protection, and the light source of the laser lighting camera lens is provided by the laser；Institute State zoom lens AD sampling modules and pass through described information processing module with the AD values that the laser lens AD sampling modules obtain Analysis, drives the ganged focus of the laser lighting camera lens and the zoom lens, realizes laser lighting and zoom lens visual field Size matches.

The zoom motor, focusing motor, light bar motor and laser lens motor are operationally driven using PWM Mode, the appropriate regulation motor rotating speed of energy make zoom lens visual field and laser lens laser divergence angle pace of change to proper states Matching, the time limit control device being additionally provided with, the timely controlled motor rotation time of energy, raising zoom lens and laser lighting camera lens Service life；The motor linkage leading screw rotates, and the sliding block above the leading screw can move forward and backward with the rotation of motor, institute State sliding block and optical mirror slip is integrated, so as to which the optical mirror slip can also move forward and backward, laser divergence angle will change；Institute The field conditions information of the zoom lens and the laser lighting camera lens can be fed back at any time by stating AD sampling modules, be easy to host computer Every order is performed according to feedback information；The driver element that the two-way that the drive control device is provided with works independently, can be one Determine to reduce laser lighting mechanism usage time in degree, reach the purpose for improving service life and energy-conservation；The leading screw both ends point Not She You limit switch protection, anti-limited slip block under out-of-control condition, motor driving energy safely power off, improve laser lens motor Durability.

Referring to shown in Fig. 1, if in the use of the present invention, under low-light (level) environment, the laser performs " Y " normal work Make, the host computer receives visual field switching command, is analyzed and fed back by described information processing module, after feedback is correct, reads institute Stating the first variable potentiometer and second that zoom lens AD sampling modules and the laser lens AD sampling modules connect respectively can Become the AD sampled values of potentiometer, and current field state gone out by the CAN communication module feedback, the circuit control panel according to AD sampled values, the direct current generator of the zoom lens and the laser lighting camera lens is driven to rotate respectively, when the zoom lens When being switched to the working condition that instruction requires, the laser lighting camera lens links regulation therewith, different visual fields is full of laser light Line, adjusted when laser lighting camera lens light angle to when matching with visual field size, ganged focus is successful, thereby using monitoring pair The target of far and near visual field carries out most clear observation；If under good illumination environment, the laser performs " N " and is stopped, So as to which the laser lighting camera lens is stopped, the zoom lens works independently.

The present invention is compact-sized with its, and cost is cheap, and high reliability is widely used in cell, market and the prison of integrated mill Engineering is controlled, it is most clear to the progress of far and near visual field using monitoring to be easy to using the ganged focus of zoom lens and laser lighting camera lens Observation, improve the utilization ratio of equipment.

Described above is only presently preferred embodiments of the present invention, and above-mentioned specific embodiment is not limitation of the present invention, Retouching, modification or the equivalent substitution that all one of ordinary skill in the art are made as described above, belong to the guarantor of the present invention Protect scope.

Claims (2)

1. a kind of ganged focusing device for optical device, including host computer, message processing module, circuit control panel, zoom Camera lens and laser lighting camera lens, the host computer are connected with described information processing module, it is characterised in that：Described information handles mould Block is connected to focusing motor, light bar motor, zoom motor, laser lens motor and laser；The circuit control panel with Described information processing module is connected, and the circuit control panel has been internally integrated CAN communication module, zoom lens AD sampling modules And laser lens AD sampling modules；The zoom lens is provided with lens focusing gear, light bar adjustment gear and lens zoom gear, The lens focusing gear, the light bar adjustment gear and the lens zoom gear pass through the focusing motor, described respectively Light bar motor and zoom motor engagement driving, wherein the lens zoom gear has also meshed with the first variable potentiometer, institute The first variable potentiometer is stated with the zoom lens AD sampling modules to be connected；The laser lighting camera lens includes the laser lens Motor, includes the optical module and leading screw of regulation laser divergence angle, and the optical module of the regulation laser divergence angle is located at institute State on laser, and the optical module of the regulation laser divergence angle includes optical mirror slip, the optical mirror slip is connected with second Variable potentiometer, second variable potentiometer are connected with the laser lens AD sampling modules, the laser lens motor connection The dynamic leading screw rotates, and the leading screw is provided with sliding block, and the sliding block is set to one, the leading screw both ends with the optical mirror slip Limit switch protection is respectively equipped with, the light source of the laser lighting camera lens is provided by the laser.

2. the ganged focusing device according to claim 1 for optical device, it is characterised in that：The zoom motor, Focusing motor, light bar motor and laser lens motor operationally use PWM type of drive, and are respectively connected with time limit control Protection device processed.