阅读说明：本技术 眼底成像照明装置及系统 (Fundus imaging illumination device and system ) 是由 黄叶权 任建伟 冬雪川 于 2019-08-15 设计创作，主要内容包括：本发明提供了一种眼底成像照明装置及系统,涉及医学照明技术领域,该装置包括依次连接的LED阵列电路、均光棒、导光线束和光学系统；该LED阵列电路包含阵列式排布的多种波长的LED灯；该LED阵列电路用于发出设定波长及设定能量的光,该光先后经均光棒、导光线束和光学系统传输到眼底,以进行照明。本发明实施例提供的眼底成像照明装置及系统,可以不移动LED灯位置而共用一套光学组件,实现对眼底的均匀照明,并且结构更简单,成本更低,拍照更快捷,性能更可靠。(The invention provides a fundus imaging lighting device and a system, which relate to the technical field of medical lighting, and the device comprises an LED array circuit, a light equalizing rod, a light guide wire harness and an optical system which are sequentially connected; the LED array circuit comprises LED lamps with various wavelengths which are arranged in an array manner; the LED array circuit is used for emitting light with set wavelength and set energy, and the light is transmitted to the eyeground through the light equalizing rod, the light guide wire harness and the optical system in sequence to illuminate. The fundus imaging illumination device and system provided by the embodiment of the invention can share one set of optical assembly without moving the position of the LED lamp, realize uniform illumination on the fundus, and have the advantages of simpler structure, lower cost, quicker photographing and more reliable performance.)

1. a fundus imaging illumination apparatus, comprising: the LED array circuit, the light equalizing rod, the light guide wire harness and the optical system are connected in sequence;

The LED array circuit comprises LED lamps with various wavelengths which are arranged in an array manner;

The LED array circuit is used for emitting light with set wavelength and set energy, and the light is transmitted to the eyeground through the light equalizing rod, the light guide wire harness and the optical system in sequence so as to illuminate.

2. An fundus imaging illumination apparatus according to claim 1, wherein said LED array circuit further comprises a controller, said controller being connected to said LED light; the controller is used for controlling the LED lamps arranged in the array type to emit light with set wavelength and set energy.

3. An fundus imaging illumination apparatus according to claim 1, wherein said light conducting bundle is comprised of a plurality of optical fibers.

4. A fundus imaging illumination apparatus according to claim 1, further comprising: a dispersion sheet disposed between the light guide wire bundle and the optical system.

5. A fundus imaging illumination apparatus according to claim 4, further comprising: and the photosensitive element is arranged in the optical system or between any two adjacent optical systems, the dispersion sheet, the light guide wire harness, the light homogenizing rod and the LED array circuit.

6. an fundus imaging illumination apparatus according to claim 1, wherein said array arrangement shape of said LED lamp is any one of a rectangle, a triangle and a circle.

7. A fundus imaging illumination apparatus according to claim 1, wherein a sectional shape of said light equalizing rod is any one of a rectangle, a triangle and a circle.

8. an fundus imaging illumination apparatus according to claim 7, wherein said light homogenizing rod is of transparent material and has a refractive index greater than 1.

9. An fundus imaging illumination device according to claim 8, wherein an inlet end of said light guide bundle covers an outlet end of said homogenizing rod, said outlet end of said light guide bundle having a cross-sectional shape of a ring.

10. A fundus imaging illumination system, comprising: a power supply, and the fundus imaging illumination apparatus of any of claims 1-9, the power supply being connected to the LED array circuitry for powering the LED array circuitry.

Technical Field

The invention relates to the technical field of medical lighting, in particular to a fundus imaging lighting device and system.

Background

The different spectrums have different penetration characteristics on retina or other tissues of eyes, and multispectral imaging can image different layers of the eye part, so that more accurate diagnosis eye tissue information is provided for doctors. At present, in the existing scheme, the LEDs with different spectrums complete the imaging of the light source through the respective corresponding optical systems, which causes the complex structure and the heavy equipment; or the position of the LED with different spectrum is physically changed to realize the sharing of one optical system, which increases the photographing time, is not beneficial to the capture of the focus point and also increases the complexity of the mechanism.

Disclosure of Invention

In view of the above, the present invention provides a fundus imaging illumination apparatus and system, which can share one set of optical components without moving the LED position, so as to achieve uniform illumination of the fundus, and have the advantages of simpler structure, lower cost, faster photographing, and more reliable performance.

In a first aspect, an embodiment of the present invention provides a fundus imaging illumination apparatus, including: the LED array circuit, the light equalizing rod, the light guide wire harness and the optical system are connected in sequence; the LED array circuit comprises LED lamps with various wavelengths which are arranged in an array manner; the LED array circuit is used for emitting light with set wavelength and set energy, and the light is transmitted to the eyeground through the light equalizing rod, the light guide wire harness and the optical system in sequence to illuminate.

With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the LED array circuit further includes a controller, and the controller is connected to the LED lamp; the controller is used for controlling the LED lamps arranged in the array type to emit light with set wavelength and set energy.

with reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the light guide bundle is composed of a plurality of optical fibers.

With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the apparatus further includes: a dispersion sheet disposed between the light guide line bundle and the optical system. .

With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the apparatus further includes: and the photosensitive element is arranged in the optical system or between any two adjacent optical systems, the diffusion sheet, the light guide wire bundle and the light equalizing rod of the LED array circuit.

In combination with the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the array arrangement shape of the LED lamp is any one of a rectangle, a triangle, and a circle.

In combination with the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein a cross-sectional shape of the light-homogenizing rod is any one of a rectangle, a triangle, and a circle.

With reference to the sixth possible implementation manner of the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein the light homogenizing rod is made of a transparent material and has a refractive index greater than 1.

With reference to the seventh possible implementation manner of the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, wherein the entrance end of the light guide bundle covers the exit end of the homogenizing rod, and the cross-sectional shape of the exit end of the light guide bundle is annular.

In a second aspect, an embodiment of the present invention further provides a fundus imaging illumination system, including: a power supply, and a fundus imaging illumination apparatus as provided in the first aspect and any one of the possible embodiments thereof, the power supply being connected to the LED array circuitry for supplying power thereto.

The embodiment of the invention has the following beneficial effects:

The fundus imaging illumination device comprises an LED array circuit, a light equalizing rod, a light guide wire harness and an optical system which are sequentially connected; the LED array circuit comprises LED lamps with various wavelengths which are arranged in an array manner; the LED array circuit is used for emitting light with set wavelength and set energy, and the light is transmitted to the eyeground through the light equalizing rod, the light guide wire harness and the optical system in sequence to illuminate. According to the fundus imaging illumination device provided by the embodiment of the invention, the LED array circuit can control one or more LED lamps to emit light with set wavelength and set energy, and uniform illumination of the fundus is finally realized through transmission of the light guide wire harness which is formed by integrating a plurality of light guide channels and has a flexible and variable port shape.

Additional features and advantages of the disclosure will be set forth in the description which follows, or in part may be learned by the practice of the above-described techniques of the disclosure, or may be learned by practice of the disclosure.

In order to make the aforementioned objects, features and advantages of the present disclosure more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

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

Fig. 1 is a schematic structural diagram of a fundus imaging illumination apparatus according to an embodiment of the present invention;

FIGS. 2a and 2b are schematic diagrams of two LED array arrangements;

FIGS. 3a, 3b and 3c are schematic views of three kinds of light homogenizing rods;

FIGS. 4a and 4b are schematic diagrams of end surface shapes of two light guide wire bundles;

Fig. 5 is a schematic structural diagram of a fundus imaging illumination system according to an embodiment of the present invention.

Icon:

10-LED array circuitry; 20-light homogenizing rod; 30-a bundle of light-guide wires; 40-an optical system; 100-fundus imaging illumination; 200-power supply.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Multispectral imaging technology is an emerging technology developed based on imaging and spectroscopy, and is used as an analysis tool in many different research fields including biomedicine. When multiple kinds of fluorescence are marked at the same time, multiple kinds of fluorescence signals are mixed together through the excitation of monochromatic light, the light with required wavelength is filtered through the liquid crystal tunable filter and collected through the charge-coupled device, then the collected multiple kinds of mixed light are subjected to photolysis mixing through the signal demixing system, and different components or positions of biological samples marked in different colors can be observed visually through signal output and display. The most different of multispectral imaging and common imaging technology is that the high-resolution spectrum of each pixel point of each image can be obtained, instead of the red, blue and green images seen by naked eyes.

multispectral imaging can be used for imaging different layers of an eye part, however, the conventional multispectral imaging device for imaging eyes can utilize Light-Emitting Diode (LED) lamps with different spectrums to complete imaging of a Light source through respective corresponding optical systems, or physically replace the positions of the LED lamps with different spectrums to share one optical system, the former can make the device structure complicated and heavy, and the latter can increase the actual photographing time, and the structure is also complicated.

Based on the above, the fundus imaging illumination device and system provided by the embodiment of the invention can realize the sharing of the same set of optical components without moving the position of the LED in the illumination device, can uniformly illuminate the fundus, and have the advantages of simpler structure, lower cost, quicker photographing and more reliable performance.

for the understanding of the present embodiment, a detailed description will be given to a fundus imaging illumination apparatus disclosed in the present embodiment.