CN217792966U - Support, lighting device and endoscope - Google Patents

Abstract

The application discloses support, lighting device and endoscope belongs to endoscope technical field. The support of this application embodiment includes the main part, has relative first terminal surface and second terminal surface, be equipped with the mounting hole in the main part, the mounting hole link up first terminal surface, the main part is in the periphery of mounting hole is equipped with the depressed part, the depressed part link up first terminal surface with the side of main part, the main part still is provided with the guide way, the one end of guide way link up the second terminal surface, the other end orientation of guide way first terminal surface extends, and with the depressed part intercommunication. The bracket of the embodiment of the application can meet the requirements of side illumination and forward illumination of the endoscope.

Description

Support, lighting device and endoscope

[ technical field ] A

The application relates to the technical field of endoscopes, in particular to a support, an illuminating device and an endoscope.

[ background ] A method for producing a semiconductor device

Endoscopes typically use forward illumination to illuminate objects in the forward region and collect illumination reflected from objects in the forward region to obtain images of objects in the forward region. The distal end (i.e., the detection end) of the endoscope is provided with a light outlet element and an image pickup element, wherein a light outlet of the light outlet element and a light inlet of the image pickup element are arranged on the end face of the distal end of the endoscope, the light outlet of the light outlet element is used for projecting illumination light towards an object in the front region, and the light inlet of the image pickup element receives the illumination light reflected by the object to obtain an image of the object. At the distal end of the endoscope, the light-emitting element and the image pickup element are usually fixed by a bracket to maintain the relative positions of the light-emitting element and the image pickup element unchanged. The light-emitting element and the image pickup element are arranged in the bracket, and the light-emitting port of the light-emitting element and the light-in surface of the image pickup element are exposed at the end surface of the bracket.

As endoscopes are used more deeply, it is required that the endoscope can capture images of objects in a wider area, for example, in addition to a front area of the endoscope, images of objects in a side area of the endoscope are captured, and it is required that a light emitting element of the endoscope can emit light not only toward the front area but also toward the side area. However, the holder at the distal end of the endoscope of the related art covers the side region of the light emitting element, and it is difficult to emit light laterally.

[ Utility model ] A method for manufacturing a semiconductor device

It is an object of embodiments of the present application to provide a stent for satisfying both lateral and forward illumination of an endoscope.

In order to achieve the above object, in one aspect, the embodiment of the present application provides a support, including the main part, relative first terminal surface and second terminal surface have, be equipped with the mounting hole in the main part, the mounting hole link up first terminal surface, the main part is in the periphery of mounting hole is equipped with the depressed part, the depressed part link up first terminal surface with the side of main part, the main part still is provided with the guide way, the one end of guide way link up the second terminal surface, the other end orientation of guide way first terminal surface extends, and with the depressed part intercommunication.

In some possible embodiments, a plurality of the recesses are included, the plurality of recesses being evenly arranged at the periphery of the mounting hole.

In some possible embodiments, the guide groove is formed with an opening on a side surface of the body.

In some possible embodiments, the guide groove is provided as a V-groove.

In some possible embodiments, a housing is provided on an outer side of the main body, and the housing is slidably provided on the main body.

In a second aspect, an embodiment of the present application provides an illumination device, including an excitation light source, a light guide element, a wavelength conversion element, and the support as described above;

the excitation light source is used for emitting excitation light;

the light guide element is arranged in the guide groove and used for receiving the exciting light and conducting the exciting light to the wavelength conversion element;

the wavelength conversion element is arranged in the concave part and is used for converting the exciting light into stimulated light with wavelength different from that of the exciting light and emitting the stimulated light towards the forward direction and the lateral direction.

In some possible embodiments, a transparent heat sink is disposed between the wavelength conversion element and the bottom surface of the recess.

In some possible embodiments, a side of the transparent heat sink facing the light guide element is provided with a dichroic layer for transmitting the excitation light and reflecting the received excited light.

In some possible embodiments, a bottom surface of the transparent heat sink is in surface contact with a bottom surface of the recess, and a side surface of the transparent heat sink is in surface contact with a side surface of the recess.

In some possible embodiments, a diffusion sheet is disposed on an optical path of forward-emitted light of the wavelength conversion element.

In a third aspect, embodiments provide an endoscope comprising:

a lighting device as described above; and

and the image pickup element is arranged in the mounting hole.

The beneficial effect of this application:

the support of this application embodiment, mounting hole are used for installing camera element, and the depressed part link up the first terminal surface and the side of main part for it is preceding can the light-emitting with the side direction region, and then can face side direction and forward direction light-emitting behind the installation lighting device.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a schematic sectional view of an endoscope in accordance with an embodiment of the present application;

FIG. 2 is a schematic sectional view of the probe end of an endoscope in accordance with an embodiment of the present application;

FIG. 3 is a schematic view of a detached configuration of the probe end of an endoscope of an embodiment of the present application;

FIG. 4 is a schematic view in partial cross-section of the probing end of an endoscope in accordance with an embodiment of the present application;

FIG. 5 is a schematic view in partial cross-sectional configuration of a probe end of an endoscope in accordance with an embodiment of the present application;

FIG. 6a is a schematic cross-sectional configuration of a probing end of an endoscope in accordance with an embodiment of the present application;

FIG. 6b is a schematic cross-sectional view of the probe end of an endoscope according to an embodiment of the present application.

[ detailed description ] A

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any order or number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either mechanically or electrically or in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship or combination of two or more elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, only the components and settings of a specific example are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repeat use is intended to provide a simplified and clear description of the present application and may not in itself dictate a particular relationship between the various embodiments and/or configurations discussed. In addition, various specific processes and materials provided in the following description of the present application are only examples of implementing technical solutions of the present application, but one of ordinary skill in the art should recognize that technical solutions of the present application can also be implemented by other processes and/or other materials not described below.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the embodiments of the present application can be practiced without one or more of the specific details, or with other structures, components, etc. In other instances, well-known structures or operations are not shown or described in detail to avoid obscuring aspects of the application.

It should be understood that fig. 1 to 6b in the present specification illustrate a schematic example of an endoscope including an illumination device, an imaging device, and a holder, and fig. 1 to 6b in the present specification illustrate the endoscope as a whole, and the holder of the embodiment of the present application and the illumination device of the embodiment of the present application can be referred to fig. 1 to 6 b.

The holder according to the embodiment of the present application is suitable for an endoscope, and is configured to be disposed at a probe end (or referred to as a distal end) of the endoscope, and a light emitting element of an illumination device and an image pickup element of an image pickup device are mounted on the holder, so that illumination light is projected through the light emitting element to illuminate an object, and illumination light reflected from the object is collected through the image pickup element to further obtain an image of the object.

Referring to fig. 1 to 5 together, the present invention provides a bracket, which includes a main body 1, the main body 1 has a first end surface 100 and a second end surface 101 opposite to each other, a mounting hole 10 is provided on the main body 1, the mounting hole 10 penetrates the first end surface 100 of the main body 1, a recessed portion 11 is provided on the outer periphery of the mounting hole 10 of the main body 1, the recessed portion 11 penetrates the first end surface 100 and a side surface of the main body 1, a guide groove 12 is further provided on the main body 1, one end of the guide groove 12 penetrates the second end surface 101, and the other end of the guide groove 12 extends toward the first end surface 100 and communicates with the recessed portion 11.

The mounting hole 10 is used for mounting the camera element 2, and the camera element 2 is used for collecting the illumination light reflected by the object in the forward area and the lateral area of the bracket so as to obtain the image of the object; the recessed portion 11 is used for mounting the wavelength conversion element 30 of the lighting device 3, the wavelength conversion element 30 is used for converting the excitation light and emitting light in the forward direction and the lateral direction, the forward light is projected out towards the front through the first end face 100 to illuminate the object in the forward area, and the lateral light is projected out towards the lateral area through the side face of the recessed portion 11 to illuminate the object in the lateral area; the guide groove 12 is used for mounting a light guide element 31 of the illumination device 3, and the light guide element 31 is used for guiding the excitation light emitted from the excitation light source 32 to the wavelength conversion element 30, so that the excitation light excites the wavelength conversion element 30 to generate the excited light. In the embodiment of the present application, by providing the recess 11 of the holder, light can be emitted not only toward the forward region but also toward the lateral region, so that the illumination region of the illumination device of the endoscope can be expanded.

The body 1 may be selected as a columnar structure extending along its length, and its cross-sectional shape is circular. The recess 11 may be selected to be recessed downward from the edge of the first end surface 100 of the body 1 toward the direction of the second end surface 101, so that the recess 101 penetrates the edge region of the first end surface 100, as well as the side surface of the body 1. In other examples, the body 1 may have other cross-sectional shapes, such as an elliptical shape, a polygonal shape, or a similar irregular shape.

According to some embodiments of the present application, the mounting hole 10 may be optionally disposed at the center of the main body 1, or in some embodiments, the mounting hole 10 may also be optionally disposed eccentrically on the main body 1, i.e. the central axis of the mounting hole 10 is not coincident with the central axis of the main body 1.

As shown in fig. 6a and 6b, the number of the recesses 11 can be selected to be one or more. When the number of the recess portions 11 is one, the recess portions 11 may be located at any position around the mounting hole 10; when the number of the recesses 11 is plural, the recesses 11 may be uniformly arranged around the mounting hole 10. For example, in one example, the number of the recesses 11 is two, and the circumferential angle between the two recesses 11 is 180 degrees. When the number of the recessed portions 11 is two or more, a plurality of wavelength converting elements 30 may be installed in the plurality of recessed portions 11, so that the received laser light emitted from the plurality of wavelength converting elements 30 can cover a wider area of the lateral area of the main body 1.

According to some embodiments of the present application, as shown in fig. 3 to 5, the guide groove 12 is formed with an opening upward at a side of the main body 1. The main body 1 is generally configured as an elongated main body, and the length of the light guide element 31 is relatively long, so that the light guide element 31 is inserted into the guide groove 12 from the side through the opening, which significantly reduces the difficulty of installing the light guide element 31. Further, the light guide member 31 mounted in the guide groove 12 can be fixed in the guide groove 12 by means of dispensing, for example, dispensing is performed at a plurality of positions in the longitudinal direction of the guide groove 12, which is convenient to process and has good mounting reliability.

As a specific example, the guide groove 12 may be selected to be a V-groove. In the direction of the opening of the guide groove 12, the cross-sectional area gradually increases, i.e., the size of the opening is large, the size of the inside is small, the light guide element 31 can be guided, and the opening can have a sufficient space for the dispensing operation.

The outer surface of the main body 1 is further provided with a housing 102, the housing 102 is slidably disposed on the main body 1 along the length direction of the main body 1, and the housing 102 is used for closing the opening of the guide groove 12 after the light guide element 31 is installed, so as to protect the elements inside the guide groove 12. The housing 102 may be selected to be a metal housing to ensure sufficient strength. Specifically, for example, when the light guide element 31 is mounted, the housing 102 is slid such that the position of the housing 102 on the main body 1 is moved above or below the guide groove 12 to expose the guide groove 12, thereby facilitating the mounting of the light guide element 31 into the guide groove 12, and after the light guide element 31 is mounted into the guide groove 12, the housing 102 is slid such that the housing 102 covers the outside of the guide groove 12, thereby serving to protect the light guide element 31 in the guide groove 12.

The lighting device according to the embodiment of the present application is described in detail below, and it should be noted that when the bracket according to the embodiment of the present application is described above, the lighting device has been briefly described, so that when the lighting device according to the embodiment of the present application is described below, relevant portions may be referred to each other.

It should be noted that the illumination device according to the embodiment of the present application is mainly applied to an endoscope to actively illuminate a region to be detected, and then an image of the region to be detected is captured by an image capturing device of the endoscope. Of course, the lighting device of the embodiment of the present application may also be applied to other active lighting scenes, such as a car headlight, a spot light, a stage light, a searchlight, a street lamp, or other active lighting devices for actively illuminating a target area.

The embodiment of the present application further provides an illumination apparatus, which includes an excitation light source 32, a light guide element 31, a wavelength conversion element 30, and the above-mentioned support. The excitation light source 32 is configured to emit excitation light; the light guide element 31 is disposed in the guide groove 12, and is used for receiving the excitation light and conducting the excitation light to the wavelength conversion element 30, the wavelength conversion element 30 is disposed in the concave groove 11, and is used for converting the excitation light into excited light with a wavelength different from that of the excitation light, and the converted excited light is emitted towards the forward region and the lateral region of the wavelength conversion element 30, so that objects in the forward region and the lateral region are illuminated.

The wavelength converting element 30 may be selected to be a medium containing a fluorescent material, such as a phosphor patch. The wavelength conversion element 30 is excited by the excitation light to generate the excited light, and the wavelength of the excited light is usually longer than that of the excitation light, for example, blue excitation light is used, and when the wavelength conversion element 30 is selected to include a yellow fluorescent material, the excited light in a yellow wavelength band range is generated, and when the wavelength conversion element 30 is selected to include a red fluorescent material, the excited light in a red wavelength band range is generated. The excited light generated by the wavelength conversion element 30 is emitted at an angle of 360 degrees, and thus, a part of the generated received light is emitted from the front surface of the wavelength conversion element 30 toward the forward region, and a part of the generated received light is emitted from the rear surface of the wavelength conversion element 30, wherein a part of the received light emitted from the rear surface of the wavelength conversion element 30 is emitted to the lateral region of the illumination device, and a part of the received light is emitted toward the light guide element 31.

It is to be noted that, in general, the wavelength conversion element 30 cannot convert all the excitation light into the stimulated light, and therefore there is also a portion of the excitation light that is not converted by the wavelength conversion element 30, which is transmitted through the wavelength conversion element 30 and exits at the front surface of the wavelength conversion element 30 toward the forward region, and which is mixed with the stimulated light exiting toward the forward region to form white light.

In some embodiments of the present application, the light source 32 comprises a laser diode that emits excitation light, such as blue excitation light, green excitation light, yellow excitation light, or the like. The excitation light is conducted to the wavelength converting element 30 through the light guiding element 31.

The light guide element 31 is, for example, an optical fiber. When the excitation light source 32 is configured as a laser diode, the optical fiber may be a single optical fiber, which can significantly reduce the overall size of the illumination device.

In some embodiments of the present application, the lighting device further comprises a transparent heat sink 33, the transparent heat sink 33 being arranged between the light guiding element 31 and the wavelength converting element 30. The transparent heat sink 33 is used to absorb heat generated by the wavelength conversion element 30 and conduct the absorbed heat to the main body 1 to dissipate the heat using the main body 1, thereby preventing the wavelength conversion element 30 from accumulating heat. The upper surface of the transparent heat sink 33 is in surface contact with the lower surface of the wavelength conversion element 30, the bottom surface of the transparent heat sink 33 is in surface contact with the bottom surface of the recess 11, and one side surface of the transparent heat sink 33 is in surface contact with the side surface of the recess 11, the transparent heat sink 33 improves the heat exchange area by surface contact of a plurality of surfaces, providing efficient heat dissipation. In order to achieve a fastening of the transparent heat sink 33, the transparent heat sink 33 is bonded to the contact surface of the recess 11 by the transparent heat sink 33, for example by gluing. In some embodiments of the present application, the wavelength conversion element 30 is, for example, molded on the surface of the transparent heat sink 33.

On the other hand, the transparent heat sink 33 is also used to transmit the excitation light conducted by the light guide element 31 to the wavelength conversion element 30, and furthermore, in order to increase the light flux incident to the lateral area, the transparent heat sink 33 may be further configured to reflect a part of the excited light emitted from the wavelength conversion element 30 toward the light guide element 31 and reflect the part of the excited light to the lateral area. The transparent heat sink 33 may alternatively be a sapphire glass sheet in an alternative example. In some embodiments of the present application, the transparent heat sink 33 is provided with a dichroic layer (not shown) on the side facing the light guiding element 31, the dichroic layer exhibiting different optical properties for light beams of different wavelength ranges, e.g. in embodiments of the present application, the dichroic layer transmits excitation light and reflects received stimulated light.

In some embodiments of the present application, a diffusion sheet 34 is disposed on a side of the wavelength conversion element 30 away from the transparent heat sink 33, wherein the diffusion sheet 34 is located on a light path of light emitted from the wavelength conversion element 30, and may be disposed with a gap between the wavelength conversion element 30 or integrated with the wavelength conversion element 30 to form a whole. The diffusion sheet 34 is used to receive the mixed light of the excited light and the unconverted excitation light emitted from the wavelength conversion element 30, and homogenize the mixed light to improve the uniformity of the mixed light emitted toward the forward region, thereby avoiding the excessive brightness of the central region of the illumination light in the forward region collected by the image pickup element 2.

In some embodiments of the present application, a coupling optical system is further disposed between the excitation light source 32 and the light guide element 31, and the coupling optical system is configured to couple excitation light emitted from the excitation light source 32 into the light guide element 31. The coupling optical system includes, for example, a collimator lens 350 and a condenser lens 351, the collimator lens 350 collimates the excitation light emitted from the excitation light source 32, and the condenser lens 351 receives the collimated excitation light and focuses the excitation light on the light entrance of the light guide element 31.

In some embodiments of the present application, the lighting device further includes a package 36, the package 36 is a TO package, for example, and the excitation light source 32, the coupling optical system, and the end of the light guide element 31 facing one end of the coupling optical system are coaxially disposed in the package 36, and the light guide element 31 is a light guide fiber, for example, whose end facing one side of the coupling optical system is disposed in the ferrule 37. The coupling optical system comprises a collimating lens 350 and a condensing lens 351, the collimating lens 350 is fixed at the light-emitting surface of the excitation light source 32 through a support, the condensing lens 351 and the ferrule 37 are respectively arranged at two ends of a glass tube 38 to realize positioning and fixing, and each optical element is coaxially arranged to improve the utilization rate of light. The back of the light source 33 is provided with a heat sink 39, the heat sink 39 conducts heat with the light source 33 in a surface contact mode, the heat sink 39 is fixedly connected with the tube shell 36 to achieve fastening, and the back of the heat sink 39 improves air convection through a plurality of radiating fins and improves radiating efficiency.

The endoscope of the embodiment of the present application is described in detail below, and it should be noted that when the stent and the illumination device of the embodiment of the present application are described above, the endoscope has been briefly described, and therefore when the endoscope of the embodiment of the present application is described below, relevant portions may be referred to each other.

The embodiment of the application also provides an endoscope, the illuminating device and the image pickup element 2, wherein the image pickup element 2 is arranged in the mounting hole 10 of the bracket. The illumination device and the camera element are fixed by a support, the illumination device is used for projecting illumination light towards the forward area and the lateral area so as to illuminate the object in the forward area and the lateral area, and the camera element 2 is used for collecting the illumination light reflected from the object in the forward area and the lateral area so as to obtain images of the object in the forward area and the lateral area.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (11)

1. The utility model provides a support, its characterized in that includes the main part, has relative first terminal surface and second terminal surface, be equipped with the mounting hole in the main part, the mounting hole link up first terminal surface, the main part is in the periphery of mounting hole is equipped with the depressed part, the depressed part link up first terminal surface with the side of main part, the main part still is provided with the guide way, the one end of guide way link up the second terminal surface, the other end orientation of guide way first terminal surface extends, and with the depressed part intercommunication.

2. The bracket of claim 1, comprising a plurality of the recesses uniformly arranged about a periphery of the mounting hole.

3. The bracket of claim 1, wherein the guide groove is formed with an opening on a side of the body.

4. A support according to claim 3, wherein the guide slot is provided as a V-shaped slot.

5. The stand of claim 1, wherein a housing is disposed on an exterior side of the body, the housing being slidably disposed on the body.

6. An illumination device comprising an excitation light source, a light guide member, a wavelength conversion member, and the holder according to any one of claims 1 to 5;

the excitation light source is used for emitting excitation light;

the light guide element is arranged in the guide groove and used for receiving the exciting light and conducting the exciting light to the wavelength conversion element;

the wavelength conversion element is arranged in the concave part and is used for converting the exciting light into stimulated light with a wavelength different from that of the exciting light and emitting the stimulated light towards the forward direction and the lateral direction.

7. A lighting device as recited in claim 6, wherein a transparent heat sink is disposed between said wavelength converting element and a bottom surface of said recess.

8. A lighting device as recited in claim 7, wherein a side of said transparent heat sink facing said light directing element is provided with a dichroic layer for transmitting said excitation light and reflecting said received stimulated light.

9. The illumination device of claim 7, wherein a bottom surface of the transparent heat sink is in surface contact with a bottom surface of the recess, and a side surface of the transparent heat sink is in surface contact with a side surface of the recess.

10. The illumination device according to claim 6, wherein a diffusion sheet is disposed on a light path of forward light exiting from the wavelength converting element.

11. An endoscope, comprising:

the lighting device of any one of claims 6 to 10; and

and the image pickup element is arranged in the mounting hole.

Images