CN210720863U

CN210720863U - Operating microscope capable of switching illumination light

Info

Publication number: CN210720863U
Application number: CN201922076107.5U
Authority: CN
Inventors: 马励行; 朱剑锋; 陈�胜; 朱佳平
Original assignee: Suzhou Semorr Medical Tech Co ltd
Current assignee: Suzhou Semorr Medical Tech Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-06-09
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses an operation microscope of changeable illumination light, it can reduce the loss of illumination light. The operating microscope capable of switching illumination light comprises an illumination system, wherein the illumination system comprises an LED module, a condensing lens and a projecting lens which are sequentially arranged, the LED module comprises an LED substrate and a plurality of groups of LED chips arranged on the LED substrate, each group of LED chips comprises one LED chip or a plurality of LED chips with the same wavelength, and the wavelengths of the LED chips are different from each other.

Description

Operating microscope capable of switching illumination light

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to operation microscope of changeable illumination light.

Background

The existing operating microscope lighting source, whether a halogen lamp, a xenon lamp or an LED lamp, is generally white light lighting. When the specific color illumination is needed, a color filter is added in the light path to filter out light with other wavelengths and only let light with one waveband pass through. The disadvantages of this approach are: firstly, the brightness attenuation of the illumination light is large, because all the light with other wavelengths of the illumination light is shielded and only one waveband is left to pass through, the energy of the light with other wavelengths is wasted; second, switch the color filter and need pass through mechanical structure, for example the knob of rotatory filter element or the handle of pull filter element etc. lack scientific and technological sense, user experience is than poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a surgical microscope of changeable illumination light, it can reduce the loss of illumination light.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the operating microscope capable of switching illumination light comprises an illumination system, wherein the illumination system comprises an LED module, a condensing lens and a projecting lens which are sequentially arranged, the LED module comprises an LED substrate and a plurality of groups of LED chips arranged on the LED substrate, each group of LED chips comprises one LED chip or a plurality of LED chips with the same wavelength, and the wavelengths of the LED chips are different from each other.

Preferably, the illumination system further comprises a light collector for making the illumination light emitted by the LED module uniform.

More preferably, the light collector is disposed between the LED module and the condenser lens.

Furthermore, the light collector is hollow, two ends of the light collector are open, an entrance port is formed at one end of the light collector, an exit port is formed at the other end of the light collector, the entrance port is arranged right opposite to the plurality of groups of LED chips, and the exit port is arranged right opposite to the condensing lens.

Further, the inner surface of the light collector is rough and hazy.

Still further, the entrance port is smaller than the exit port.

Specifically, the light collector is in a circular truncated cone shape.

Preferably, the LED substrate is provided with LED driving circuits for respectively driving the LED chips of each group to be turned on and off.

Preferably, the surgical microscope further comprises an input device electrically connected to the LED driving circuit.

More preferably, the input device comprises a touch display screen or a touch button switch.

The utility model adopts the above scheme, compare prior art and have following advantage:

the utility model discloses an operating microscope encapsulates the LED chip of the different wavelength of multiunit on single LED base plate, makes a set of or several groups of LED chips that correspond luminous according to the user demand, forms the illumination light of required colour or wave band, like white light, orange light, green light, ultraviolet ray etc. has reduced the loss of illumination light simultaneously.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an optical path diagram of an illumination system of an operating microscope according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an LED module of an operating microscope according to an embodiment of the present invention;

fig. 3 is a schematic external view of an operating microscope according to an embodiment of the present invention.

Wherein the content of the first and second substances,

1. an LED module; 11. an LED substrate; 12. an LED chip; 13. a pin; 14. an anode; 2. a light collector; 21. An entrance port; 22. an exit port; 3. a condenser lens; 4. a projection lens; 5. an object surface; 6. a housing; 7. touch-control display screen.

Detailed Description

The following detailed description of the preferred embodiments of the invention is provided to enable those skilled in the art to more easily understand the advantages and features of the invention.

The embodiment provides an operating microscope capable of switching illuminating light, in particular to an oral operating microscope. The surgical microscope includes an illumination system. Referring to fig. 1, the illumination system includes an LED module 1, a light collector 2, a condensing lens 3, and a projecting lens 4, which are sequentially disposed, and illumination light emitted from the LED module 1 is uniformly processed by the light collector 2 and then sequentially irradiated onto an object plane 5 through the condensing lens 3 and the projecting lens 4.

The LED module 1 is used for emitting illumination light with a corresponding wavelength band or color, such as white light, orange light, green light, ultraviolet light, etc., according to the use requirement. Referring to fig. 1 and 2, the LED module 1 includes an LED substrate 11 and a plurality of LED chips 12 disposed on the LED substrate 11, where each LED chip 12 includes one LED chip or a plurality of LED chips with the same wavelength, and the wavelengths of the plurality of LED chips 12 are different from each other. Further, the plurality of sets of LED chips 12 are arranged in an array. In the present embodiment, the LED module 1 includes nine LED chips 12, which are respectively labeled as λ₁、λ₂、λ₃、λ₄、λ₅、λ₆、λ₇、λ₈And lambda₉. Each group of LED chips 12 includes one LED chip, and the wavelengths of the nine LED chips 12 are different from each other and are arranged in an array of 3 rows and 3 columns. When the operating microscope is used, only one or a few of the LED chips 12 are turned on to emit illumination light of a corresponding color or wavelength band, or all the LED chips 12 may be turned on to emit light, as required. The LED substrate 11 is provided with LED driving circuits for respectively driving the on-off of each group of the LED chips 12, each LED chip 12 is correspondingly provided with one pin 13, and each LED chip 12 is electrically connected with the LED driving circuit through an anode 14 and the corresponding pin 13. The on/off control of the LED chip 12 by the LED driving circuit is a known technology in the prior art, and is not the essential point of the present invention, and is not described herein.

The light collector 2 is used for making the illumination light emitted by the LED module 1 uniform. Referring to fig. 1, the light collector 2 is disposed between the LED module 1 and the condenser lens 3. The light collector 2 is hollow and has two open ends, an entrance port 21 is formed at one end of the light collector 2, and an exit port 22 is formed at the other end of the light collector 2. The entrance port 21 is arranged over against the plurality of groups of LED chips 12, the size of the entrance port 21 is enough to cover the whole array of LED chips 12, the illumination light emitted from any one LED chip 12 can enter the light collector 2, and the exit port 22 is arranged over against the condensing lens 3. Specifically, in the present embodiment, the light collector 2 is a circular truncated cone, which is substantially a hollow truncated cone, and the end of the incident port 21 is smaller than the end of the exit port 22, and the incident port 21 is smaller than the exit port 22. The inner surface of the light collector 2 is rough and hazy, i.e. the inner surface of the light collector 2 is uneven. The light collector 2 adopts a fog surface design with a light uniformizing effect, and eliminates the phenomenon of light spot deviation or unevenness which is not generated at the center of a light path when one or more LED chips 12 emit light.

The operation microscope also comprises an input device electrically connected with the LED driving circuit. Referring to fig. 3, in this embodiment, the input device includes a touch display screen 7, and the touch display screen 7 is specifically disposed on the housing 6 of the operating microscope, so as to receive an instruction corresponding to the color of the illumination light input by the user, and according to the instruction, the LED driving circuit communicates the corresponding one or more sets of LED chips 12. The touch display screen 7 can be replaced by a touch button switch.

In the operating microscope, a plurality of groups of LED chips 12 with different wavelengths are packaged on a single LED substrate 11, one or more corresponding groups of LED chips 12 emit light according to the use requirement, and the light collector 2 is matched to homogenize the light to form illumination light with a desired color or wavelength band, such as white light, orange light, green light, ultraviolet light, and the like, and the loss of the illumination light is reduced. In addition, the switching of the color of the illumination light is realized through circuit control, so that the operation comfort and the user experience of the equipment are improved.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are preferred embodiments, which are intended to enable persons skilled in the art to understand the contents of the present invention and to implement the present invention, and thus, the protection scope of the present invention cannot be limited thereby. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A surgical microscope switchable between illumination light, comprising an illumination system, characterized in that: the illuminating system comprises an LED module, a condensing lens and a projecting lens which are sequentially arranged, wherein the LED module comprises an LED substrate and a plurality of groups of LED chips arranged on the LED substrate, each group of LED chips comprises one LED chip or a plurality of LED chips with the same wavelength, and the wavelengths of the LED chips are different.

2. The surgical microscope of claim 1, wherein: the illumination system also comprises a light collector for enabling illumination light emitted by the LED module to be uniform.

3. The surgical microscope of claim 2, wherein: the light collector is arranged between the LED module and the condensing lens.

4. The surgical microscope of claim 3, wherein: the LED light collector is hollow, two ends of the light collector are open, an entrance port is formed at one end of the light collector, an exit port is formed at the other end of the light collector, the entrance port is arranged right opposite to the multiple groups of LED chips, and the exit port is arranged right opposite to the condensing lens.

5. The surgical microscope of claim 4, wherein: the inner surface of the light collector is a rough matte surface.

6. The surgical microscope of claim 4, wherein: the entrance port is smaller than the exit port.

7. The surgical microscope of claim 6, wherein: the light collector is in a circular truncated cone shape.

8. The surgical microscope of claim 1, wherein: and the LED substrate is provided with LED driving circuits which respectively drive the on-off of each group of LED chips.

9. The surgical microscope of claim 8, wherein: the operation microscope also comprises an input device electrically connected with the LED driving circuit.

10. The surgical microscope of claim 9, wherein: the input device comprises a touch display screen or a touch button switch.