CN210871524U

CN210871524U - Binocular stereo and image-guided fundus camera

Info

Publication number: CN210871524U
Application number: CN201921415840.9U
Authority: CN
Inventors: 陆宇
Original assignee: Hefei Orbis Technology Co ltd
Current assignee: Hefei Orbis Technology Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-06-30
Anticipated expiration: 2029-08-29

Abstract

The utility model provides a two mesh are three-dimensional and image guide eye ground camera, includes the body, the body openly is provided with the imaging window, the left and right sides that the imaging window position was put is provided with an observation window respectively, follows imaging window has set gradually omentum objective, cavity speculum, focusing mirror group, spectroscope, formation of image objective, CCD camera to main part inside, cavity speculum below is provided with dodging mirror, and the dodging mirror below is provided with the light source, and two mesh stereo vision optical systems follow observation window is provided with cavity speculum, focusing mirror group and CCD camera to main part inside in order, cavity speculum below LED light source. Has the advantages that: the electronic screen and the imaging light path CCD are in an optical conjugate position, the eyes are better fixed and adjusted through the matching of patterns or characters of the electronic screen and a light source, the image of the eyeground is clearly reflected on the CCD camera, and the dimension of the vertical dimension, the horizontal dimension, the longitudinal dimension and the like of the image can be determined.

Description

Binocular stereo and image-guided fundus camera

Technical Field

The utility model relates to a medical imaging field particularly, relates to a two mesh three-dimensional and image guide eye ground cameras.

Background

The fundus camera is an inspection tool for observing the fundus of the eye, for example, whether the retina, optic disc, blood vessel distribution, etc. are abnormal. The fixation light source can guide the testee to rotate the eyeballs to a specific direction, so that the operator can obtain a desired observation range. According to the chinese patent No. 201720015595.7, a full-automatic fundus camera is disclosed, which solves the problem that a fundus camera needs to be operated and read by professional personnel and cannot be normally used by ordinary people, but does not have the capability of image guidance and laser confocal scanning, so that complete and comprehensive disease screening cannot be well performed on eyes, diagnosis of a doctor on the eye diseases of a patient is seriously affected, and optimal treatment time on the eyes of the patient is delayed.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model provides a two mesh stereoscopy and image guide eye ground camera to overcome the above-mentioned technical problem that current correlation technique exists.

The technical scheme of the utility model is realized like this:

the utility model provides a binocular stereo is led and image guide eye ground camera, includes the body, the body openly is provided with the imaging window, the imaging window is provided with the eye-shade outward, the left and right sides of imaging window position is provided with an observation window respectively, wherein, this internal two optical system that is provided with of imaging window, the inside imaging optical system that is equipped with of imaging window, the inside binocular stereo vision optical system that is equipped with of observation window, imaging optical system follow the imaging window has set gradually omentum objective, hollow mirror, focusing mirror group, spectroscope, formation of image objective, CCD camera to the main part inside, hollow mirror below is provided with the dodging mirror, and the dodging mirror below is provided with the light source, the light source is the wide spectrum xenon lamp, the spectroscope below is provided with the formation of image, and the imaging mirror group has the electronic screen, and binocular stereo vision optical system follows the observation window is, Focusing mirror group and CCD camera, LED light source below the cavity speculum.

Furthermore, the hollow reflector has a hole in the middle to allow light to pass through, the mirror surface to reflect light, and the beam splitter is a half-mirror with a front surface to reflect light and a back surface to transmit light.

The utility model has the advantages that: the image of the eye ground is clearly reflected to the CCD camera through the electronic screen pattern or character matched light source, the image can be determined in dimensions such as up, down, left, right and the like, the distance between the front and the back can be determined, and then thorough and comprehensive disease screening on the eye part is realized, the diagnosis effect of a doctor on the eye disease of a patient is ensured, and the treatment effect on the eye part of the patient is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the appearance structure of the present invention;

fig. 2 is a schematic diagram of an optical system according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

According to the embodiment of the utility model, a binocular stereo and image guide eye ground camera is provided.

As shown in fig. 1-2, the binocular stereo and image guided fundus camera according to the embodiment of the present invention comprises a body 1, the body 1 is provided with an imaging window 2 on the front side, an eyeshade 3 is provided outside the imaging window 2, an observation window 4 is provided on each of the left and right sides of the position of the imaging window 2, wherein two optical systems are provided in the body 1, an imaging optical system is provided inside the imaging window 2 for observing human eyes, focusing near-far vision and collecting fundus images, a binocular stereo vision optical system is provided inside the observation window 4 for observing and positioning human eyes, the imaging optical system is provided with a retinal objective 5, a hollow reflector 6, a focusing lens 7, a spectroscope 8, an imaging objective 9 and a CCD camera 10 in sequence from the imaging window 2 to the inside of the body, a light homogenizing mirror 11 is provided below the hollow reflector 6, a light source 12 is arranged below the light uniformizing mirror 11, the light source 12 is a wide-spectrum xenon lamp, an imaging lens group 13 is arranged below the spectroscope 8, an electronic screen 14 is arranged below the imaging lens group 13, a binocular stereoscopic vision optical system is sequentially provided with a hollow reflector 6, a focusing lens group 7 and a CCD camera 10 from the observation window 4 to the inside of the main body 1, and an LED light source 15 is arranged below the hollow reflector 6. The hollow reflector 6 has a hole in the middle for light to pass through, the mirror surface for light reflection, the spectroscope 8 is a half-mirror with front for light reflection and back for light transmission.

Image guidance principle: in the optical design, the fundus of the human eye and the electronic screen and the imaging light path CCD camera have a conjugate relation, namely, images or characters presented on the electronic screen are reflected by the spectroscope 8 through the imaging lens group and then sequentially pass through the focusing lens group 7, the hollow reflector 6 and the retina objective lens 5 to reach the fundus for the human eye to observe, and when the images seen by the human eye are clear, the CCD can just form clear images on the fundus.

Binocular stereoscopic principle: when the binocular stereoscopic vision imaging device works, the LED light sources 15 of the two binocular stereoscopic vision optical systems reach pupils through the hollow reflector 6, so that the illumination of anterior ocular segments is achieved, the illuminated anterior ocular segments sequentially pass through the hollow reflector 6 and the focusing lens group 7 to finally image on the CCD camera 10, the eyeground is imaged and calculated through the two binocular stereoscopic vision optical systems and the CCD camera, and the determination of the front and rear distance dimensions can be achieved in real time.

Ordinary imaging technique is through a light path formation of image, so can realize the upper and lower left and right sides of image etc. the definite of dimensionality, but because eye ground and CCD camera are in same straight line, consequently, its fore-and-aft distance can't survey, and this application is shot a bit simultaneously through two optical lens group, not only can realize the upper and lower left and right sides of image etc. the dimensionality definite, but also can confirm the dimensionality of fore-and-aft distance, consequently, the data information that the eye ground was observed and is shot is more accurate, and then guarantee the diagnostic effect of doctor to patient's eye disease, and then improve the treatment to patient's eye.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a binocular stereo and image guide eye ground camera, its characterized in that, includes the body, the body openly is provided with the imaging window, the imaging window is provided with the eye-shade outward, the left and right sides of imaging window position is provided with an observation window respectively, wherein, this internal two optical system that is provided with of imaging window, the inside imaging optical system that is equipped with of observation window, the inside binocular stereo vision optical system that is equipped with of observation window, imaging optical system follow the imaging window has set gradually omentum objective, hollow mirror, focusing mirror group, spectroscope, formation of image objective, CCD camera to the main part is inside, hollow mirror below is provided with the dodging mirror, is provided with the light source below the dodging mirror, the light source is wide spectrum xenon lamp, the spectroscope below is provided with the imaging mirror group, is provided with the electronic screen under the imaging mirror group, and binocular stereo vision optical system follows the observation window, Focusing mirror group and CCD camera, LED light source below the cavity speculum.

2. A fundus camera according to claim 1, wherein said hollow reflector has a hole in the middle for light to pass through, and a mirror surface for light to reflect, and a beam splitter is a half mirror with a front surface for light to reflect and a back surface for light to transmit.

3. An eye fundus camera according to claim 1 wherein the CCD camera and the electronic screen within the imaging window are in conjugate positions, the electronic screen being used to assist in fixing the eye and assisting in focusing, the eye observing a clear image on the electronic screen, the CCD capturing a clear image of the eye fundus.