CN217445439U

CN217445439U - double-CCD electric focusing device

Info

Publication number: CN217445439U
Application number: CN202221507250.0U
Authority: CN
Inventors: 朱栾栾; 宫文; 张飞飞; 李双双; 范顺学
Original assignee: Luoyang Fanyu Photoelectric Technology Co ltd
Current assignee: Luoyang Fanyu Photoelectric Technology Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-09-16
Anticipated expiration: 2032-06-16

Abstract

The utility model discloses an electronic focusing device of two CCD, the device include base, visible light source, speculum, beam splitter prism, objective and first CCD camera, and the device still includes the second CCD camera and is used for driving the horizontal reciprocating motion's of second CCD camera adjusting part, and the second CCD camera is located the emergent light path of speculum. The sliding block is driven to reciprocate along the axial direction through the adjusting assembly, and then the second CCD camera is driven to reciprocate to realize electric focusing, so that errors are reduced, and the working efficiency is improved.

Description

double-CCD electric focusing device

Technical Field

The utility model relates to the field of optical technology, concretely relates to electronic focusing device of two CCD.

Background

The collimator is one of collimators, through which a light beam from infinity can be obtained, and is mainly applied to the aspects of optical system installation, calibration, detection, calibration and the like. It is an important tool for assembling, correcting and regulating optical instrument, and also an important component in optical measuring instrument, and can be matched with different graticules, and can be used together with micrometer lens or microscope system to measure focal length of lens group and other imaging quality. The working principle is that the attached adjustable plane reflector is fixed on the workpiece to be detected, and the linearity of the moving workpiece can be detected by using a Gauss auto-collimation lens attached to the light pipe and observing through a Gauss eyepiece on the light pipe.

The focusing in the prior art usually adopts manual focusing, when the optical axis of the zooming optical lens and the normal line of the imaging assembly are coaxially adjusted, the zooming optical lens needs to be fixed, usually, a screw is adopted to connect a CCD camera bottom plate to complete fastening, and the method easily causes the deformation of the bottom plate and influences the coaxial adjustment precision; according to the actual image definition, manual repairing, researching and interpreting are carried out, and the efficiency is low; and the adjustment precision is low by adopting a mode of naked eye identification and manual operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two CCD electronic focusing devices.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted does: the device comprises a base, a visible light source, a reflector, a beam splitter prism, an objective lens and a first CCD camera, and further comprises a second CCD camera and an adjusting component for driving the second CCD camera to horizontally reciprocate, wherein the second CCD camera is located on an emergent light path of the reflector.

As the utility model discloses further scheme, adjusting part includes that step motor, ball are vice and install the linear guide of the ceramic material on the base, and step motor passes through ball and vice drive second CCD camera at linear guide upper level reciprocating sliding.

As the utility model discloses further scheme, adjusting part still include ceramic material's slider and with this slider fixed connection's guide rail platform, the vice nut that includes ball and rather than supporting threaded connection of ball, slider fixed connection is on this nut, second CCD camera fixed connection is on the guide rail platform.

Wherein, the output shaft of step motor passes through the shaft coupling and links to each other with ball screw's one end.

As a further proposal of the utility model, a magnetic grid ruler is arranged on the base.

As a further proposal of the utility model, two ends of the base are respectively provided with a photoelectric switch.

The utility model accurately records the position of the second CCD camera through the magnetic grid ruler without manual measurement; and through adjusting part drive slider along axial reciprocating motion, and then drive second CCD camera reciprocating motion and realize electronic focusing, need not the manual work and fix and remove the CCD camera, reduce the error and improve work efficiency.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a side view of FIG. 1;

fig. 3 is a top view of fig. 1.

Reference numerals: 1. the device comprises a stepping motor, 2, a sliding block, 3, a guide rail platform, 4, a magnetic grid ruler, 5, a ball screw, 6, a linear guide rail, 7, a photoelectric switch, 8, a base, 9, a reflector, 10, a visible light source, 11, a first CCD camera, 12, a second CCD camera, 13, a first beam splitter prism, 14, a second beam splitter prism, 15 and an objective lens.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed.

A double-CCD electric focusing device is shown in figures 1-3 and comprises a base 8, a visible light source 10, a reflector 9, an objective lens 15, a first CCD camera 11, a first beam splitter prism 13 and a second beam splitter prism 14.

The light beam of the visible light source 10 is divided by the first beam splitter prism 13 into: one pass is received by the first CCD camera 11 to the right; one path of light is reflected and then enters a second beam splitter prism 14; the light beam passing through the second beam splitting prism 14 reaches the objective lens 15 in a part, and is reflected downward by the mirror 9 in another part to be received by the second CCD camera 12 to the right.

As shown in fig. 1 and 2, the device further comprises a second CCD camera 12 and an adjusting assembly for driving the second CCD camera 12 to horizontally reciprocate. A second CCD camera 12 is located in the exit light path of the mirror 9.

The visible light source of the present embodiment is an LED light source.

As shown in fig. 3, the adjusting assembly includes a stepping motor 1, a ball screw pair and a linear guide 6 made of ceramic material and mounted on a base 8, the stepping motor 1 drives a second CCD camera 12 to horizontally slide on the linear guide 6 in a reciprocating manner through the ball screw pair, and the base 8 is provided with a magnetic scale 4 for recording the position of the second CCD camera 12.

Wherein, the adjusting part still includes slider 2 of ceramic material and with this slider 2 fixed connection's guide rail platform 3, the ball is vice to include ball 5 and rather than supporting threaded connection's nut. The slide block 2 is fixedly connected to the nut, and the second CCD camera 12 is fixedly connected to the guide rail platform 3.

Wherein, the output shaft of step motor 1 passes through the shaft coupling and links to each other with ball 5's one end, and the both ends of base 8 are equipped with a photoelectric switch 7 respectively.

The adjusting component drives the sliding block 2 to reciprocate along the axial direction, so as to drive the second CCD camera 12 to reciprocate, the second CCD camera 12 is connected with the display, the image of the resolution plate in the collimator shot by the lens is clearly displayed in the display, and the position data is recorded through the magnetic grid ruler 4.

The utility model accurately records the position of the second CCD camera 12 through the magnetic grid ruler 4 without manual measurement; and through adjusting the subassembly drive slider 2 along axial reciprocating motion, and then drive second CCD camera 12 reciprocating motion, need not the manual work and fix and remove the CCD camera, reduce the error and improve work efficiency.

Wherein, prior art's guide rail, slider and base are the metal, can warp because expend with heat and contract with cold under the high low temperature, the utility model discloses all set up the material of linear guide, slider and base into current ceramic material, the micro-expansion under the high low temperature to adopt optics level polished surface preparation base, make the plane degree be superior to 0.1 micron, install ceramic structure's guide rail on it, can realize micron order guide rail straightness accuracy.

The utility model discloses the innovation point lies in the realization device of the electronic focusing of two CCD, it does not describe to CCD formation of image and photoelectric control technique of making a video recording, this part technique belongs to prior art, technical staff in the field can reach the CCD camera according to common general knowledge, photoelectric switch, the display, how the motor is connected and work, convert the signal of telecommunication into by photoelectric converter after CCD receives the optical signal, and transmit the computer, the computer sends instruction signal to the control box, control box control motor drives the partial removal of light path and seeks best focus position technique, prior art has disclosed techniques such as CCD follow-up system design based on single chip microcomputer control. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art and related fields without creative efforts shall fall within the protection scope of the present invention.

Claims

1. Electronic focusing device of two CCD, the device include base, visible light source, speculum, beam splitter prism, objective and a CCD camera, its characterized in that: the device also comprises a second CCD camera and an adjusting component for driving the second CCD camera to horizontally reciprocate, wherein the second CCD camera is positioned on an emergent light path of the reflector.

2. The dual CCD electric focusing apparatus of claim 1, wherein: the adjusting component comprises a stepping motor, a ball screw pair and a linear guide rail made of ceramic materials and arranged on the base, and the stepping motor drives the second CCD camera to horizontally slide on the linear guide rail in a reciprocating mode through the ball screw pair.

3. The dual CCD electronically focusing apparatus of claim 2, wherein: the adjusting component further comprises a slide block made of ceramic materials and a guide rail platform fixedly connected with the slide block, the ball screw pair comprises a ball screw and a nut connected with the ball screw in a matched threaded manner, the slide block is fixedly connected onto the nut, and the second CCD camera is fixedly connected onto the guide rail platform.

4. The dual CCD electronically focusing apparatus of claim 2, wherein: the output shaft of the stepping motor is connected with one end of the ball screw through a coupler.

5. The dual CCD electric focusing apparatus of claim 1, wherein: the base is provided with a magnetic grid ruler.

6. The dual CCD electric focusing apparatus of claim 1, wherein: two ends of the base are respectively provided with a photoelectric switch.