CN209059138U - Fujinon electronic video endoscope lighting system - Google Patents
Fujinon electronic video endoscope lighting system Download PDFInfo
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- CN209059138U CN209059138U CN201821354449.8U CN201821354449U CN209059138U CN 209059138 U CN209059138 U CN 209059138U CN 201821354449 U CN201821354449 U CN 201821354449U CN 209059138 U CN209059138 U CN 209059138U
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Abstract
The utility model provides a kind of fujinon electronic video endoscope lighting system, belongs to medical instruments field.It solves existing endoscope lighting system using three-chip type glass spherical mirror, there is a problem of at high cost, illumination zone and illumination uniformity difference.This fujinon electronic video endoscope lighting system, optical cable including sleeve and in sleeve, light is issued by the light emitting end surface for being located at optical cable front end, the front end of optical cable, which is equipped with to be located in sleeve, matches light unit, it is single element lens with light unit, lens, which have, corresponds parallel regular polygon or circular end face two close to the regular polygon or circular end face one of light emitting end surface setting and and the sideline equilateral with end face one far from light emitting end surface setting, and the deflection structure for deflecting the light entered by end face one is equipped between end face one and end face two.The utility model has many advantages, such as that illumination zone is big, illumination uniformity is good and at low cost.
Description
Technical field
The utility model belongs to medical instruments field, is related to a kind of fujinon electronic video endoscope lighting system.
Background technique
The wide angle objective lens field angle of fujinon electronic video endoscope is usually 140 ° or so.It is enough in order to be obtained in human body
Clearly image, matched lighting system should also provide as broad as possible and uniform illumination region.And the numerical value of guide-lighting optical cable
Aperture was usually no more than for 0.6 (being less than or equal to 0.6), was equivalent to except 70 ° of angles without light output, it is clear that cannot meet the requirements.
Therefore, common practice is to carry out again light distribution plus lens group in optical cable end to obtain sufficiently large beam angle.
Common endoscope lighting system front lens are three-chip type glass spherical mirror, and preceding two panels is convex lens, rear a piece of
For convex lens or concavees lens (such as Authorization Notice No. be CN103562770B endoscope tip component and endoscope), to increase
Add efficiency, reduces Fresnel loss, it will usually be coated with anti-reflection film in lens surface.Cooperate the mainstream light of 0.6 or so numerical apertures
Although light in use, 160 ° of range can be projected by cable, its half-peak beam angle does not exceed 80 generally (such as Fig. 1 institute
Show).Mean that most light concentrates on field of view center (as shown in Figure 2), illuminance uniformity is unsatisfactory.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, is proposed a kind of complete using single element lens
Match the fujinon electronic video endoscope lighting system of photoreduction process at light.
The purpose of this utility model can be realized by the following technical scheme:
Fujinon electronic video endoscope lighting system, the optical cable including sleeve and in sleeve, light is by the hair positioned at optical cable front end
Light end face issues, and the front end of the optical cable, which is equipped with to be located in sleeve, matches light unit, which is characterized in that described to be with light unit
Single element lens, the lens have close to the regular polygon or circular end face one of light emitting end surface setting and set far from light emitting end surface
And the sideline equilateral with end face one set corresponds parallel regular polygon or circular end face two, the end face one and end face two
Between be equipped with deflection structure for deflecting the light entered by end face one.
In above-mentioned fujinon electronic video endoscope lighting system, the end face one is rounded, and the end face two is rounded.
In above-mentioned fujinon electronic video endoscope lighting system, the end face one is in regular polygon, and the end face two is in just
Polygon.
In above-mentioned fujinon electronic video endoscope lighting system, the surface area of the end face one is greater than the surface area of end face two, institute
The deflection structure stated includes the free form surface that boundary curve along end face one extends to two edge of end face, extends to end in end face one
The distance of free form surface to the lens central axes gradually becomes smaller on the direction in face two.Using free form surface, greatly improve
For single element lens to the deflection capacity of light, it is also plane of refraction which, which is reflecting surface, and the light entered from end face one passes through certainly
By curved refractive, Fresnel loss is reduced, optical efficiency is improved.Wherein, end face one is identical as the shape of end face two, and end face
One is at least regular pentagon with end face two, preferably circular.
In above-mentioned fujinon electronic video endoscope lighting system, have between the end face one and free form surface along length sleeve
The circular orientation face that direction extends, the positioning surface extend to free form surface by the one of proximal end face one along the edge of end face one
End, the free form surface are connect with positioning surface arc transition, and the lens are located in sleeve by positioning surface.
In above-mentioned fujinon electronic video endoscope lighting system, the surface area of the end face one is greater than the surface area of end face two, institute
The deflection structure stated includes several end to end conical surfaces, and the conical surface described in first is connect with the edge of end face one, last
A conical surface is connect with the edge of end face two, and the cone of the conical surface in downstream is located on the direction that end face one extends to end face two
Angle is greater than the cone angle of the conical surface adjacent thereto positioned at upstream.Alternatively, own curved surface is disassembled as several conical surfaces, just
The monitoring of size when volume production.
Have in above-mentioned fujinon electronic video endoscope lighting system, between the end face one and first conical surface along set tube length
The circular orientation face that direction extends is spent, the positioning surface extends to first conical surface by proximal end face one along the edge of end face one
One end, the lens are located in sleeve by positioning surface.
In above-mentioned fujinon electronic video endoscope lighting system, the front end of the lens is transparent flat in sleeve with being located in
The end face two of plate, the lens sticks on transparent plate.The sealing of optical cable is realized by transparent plate.
In above-mentioned fujinon electronic video endoscope lighting system, the lens are made of transparent optical medium, relative to tradition
Three-chip type lens have explicit costs advantage.
The optical cable that this fujinon electronic video endoscope lighting system is 0.6 using numerical aperture, the half-peak through single element lens emergent ray
Beam angle is significantly improved relative to 80 ° or so of half-peak beam angle of existing conventional design up to 120 °, improves illumination zone
And illumination uniformity.
Compared with prior art, this fujinon electronic video endoscope lighting system has the advantage that
Traditional three pieces lens are substituted by single element lens, and single element lens are made of the transparent optical medium that can be molded production,
There is explicit costs advantage relative to traditional three-chip type lens；Free form surface (or several cones are set by the side of lens
Face), it greatly improves single element lens and optical efficiency is improved to the deflection capacity of light, while improving illumination zone and photograph
Bright uniformity.
Detailed description of the invention
Fig. 1 is the lens light distribution curve provided in background technique.
Fig. 2 be the lens that are provided in background technique away from illumination region 70mm when Illumination Distribution figure.
Fig. 3 is the structural schematic diagram of preferred embodiment provided by the utility model.
Fig. 4 is the structural schematic diagram of lens in embodiment one provided by the utility model.
Fig. 5 is the structural schematic diagram of lens in embodiment two provided by the utility model.
Fig. 6 is one light source center launch point index path of embodiment provided by the utility model.
Fig. 7 is one light source edge launch point index path of embodiment provided by the utility model.
Fig. 8 is lens light distribution curve provided by the utility model.
Fig. 9 be lens provided by the utility model away from illumination region 70mm when Illumination Distribution figure.
Figure 10 is the structural schematic diagram of embodiment three provided by the utility model.
Figure 11 is the top view of embodiment three provided by the utility model.
Figure 12 is the structural schematic diagram of example IV provided by the utility model.
Figure 13 is the top view of example IV provided by the utility model.
In figure, 1, sleeve；2, optical cable；3, light emitting end surface；4, lens；5, end face one；6, end face two；7, free form surface；8,
Positioning surface；9, the conical surface；10, transparent plate.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
Fujinon electronic video endoscope lighting system as shown in Figure 3, the optical cable 2 including sleeve 1 and in sleeve 1, light is by position
Light emitting end surface 3 in 2 front end of optical cable issues, and it is single with light unit that the front end of optical cable 2, which is equipped with to be located in sleeve 1, which matches light unit,
Piece lens 4, as shown in figure 4, lens 4 have the circular end face 1 and the separate setting of light emitting end surface 3 being arranged close to light emitting end surface 3
Circular end face 26, light emitting end surface 3, end face 1 and end face 26 are parallel to each other and end face 1 and end face 26 are coaxially disposed, end
The deflection structure for deflecting the light entered by end face 1 is equipped between face 1 and end face 26.
As shown in figure 4, the surface area of end face 1 is greater than the surface area of end face 26, deflection structure includes along end face 1
Boundary curve extends to the free form surface 7 at 26 edge of end face, the freedom on the direction that end face 1 extends to end face 26
The distance of curved surface 7 to 4 central axes of lens gradually becomes smaller.Using free form surface 7, single element lens 4 are greatly improved to the inclined of light
Turn ability, as shown in Figure 6 and Figure 7, it is also plane of refraction which, which is reflecting surface, and the light entered from end face 1 passes through certainly
It is reflected by curved surface 7, reduces Fresnel loss, improve optical efficiency.
As shown in figure 4, have between end face 1 and free form surface 7 along the circular orientation face 8 that 1 length direction of sleeve extends,
Positioning surface 8 extends to one end that free form surface 7 leans on proximal end face 1, free form surface 7 and 8 circular arc of positioning surface along the edge of end face 1
Transition connection, lens 4 are located in sleeve 1 by positioning surface 8.
As shown in figure 3, having the transparent plate 10 being located in sleeve 1 in the front end of lens 4, the end face 26 of lens 4 is pasted
It leans against on transparent plate 10, the sealing of optical cable 2 is realized by transparent plate 10.Transparent plate 10 in the present embodiment is slide.
In the present embodiment, lens 4 are made of transparent optical medium, have explicit costs relative to traditional three-chip type lens 4
Advantage.
The optical cable 2 that this fujinon electronic video endoscope lighting system is 0.6 using numerical aperture, half through 4 emergent ray of single element lens
Peak beam angle is significantly improved, such as Fig. 8 and Fig. 9 institute up to 120 ° relative to 80 ° or so of half-peak beam angle of existing conventional design
Show, improves illumination zone and illumination uniformity.
Embodiment two
The structural principle of the present embodiment is essentially identical with the structural principle of embodiment one, and different places is, such as Fig. 5 institute
Showing, the surface area of end face 1 is greater than the surface area of end face 26, and deflection structure includes several end to end conical surfaces 9, and first
The conical surface 9 is connect with the edge of end face 1, the last one conical surface 9 is connect with the edge of end face 26, extends to end face in end face 1
Cone angle on 26 direction positioned at the conical surface 9 in downstream is greater than the cone angle of the conical surface adjacent thereto 9 positioned at upstream.That is the present embodiment
The middle free form surface by embodiment one is disassembled as several conical surfaces 9, convenient for the monitoring of size when volume production.
As shown in figure 5, having between end face 1 and first conical surface 9 along the circular orientation face that 1 length direction of sleeve extends
8, positioning surface 8 extends to one end that first conical surface 9 leans on proximal end face 1 along the edge of end face 1, and lens 4 are fixed by positioning surface 8
Position is in sleeve 1.
Embodiment three
The structural principle of the present embodiment is essentially identical with the structural principle of embodiment one, and different places is, such as Figure 11
Shown, end face 1 and end face 26 are in octagon, and as shown in Figure 10 and Figure 11, deflection structure includes along the edge of end face 1
Curve extends to the free form surface 7 at 26 edge of end face, the free form surface on the direction that end face 1 extends to end face 26
7 distance to 4 central axes of lens gradually becomes smaller.
Example IV
The structural principle of the present embodiment is essentially identical with the structural principle of embodiment one, and different places is, such as Figure 13
Shown, end face 1 and end face 26 are in octagon, and as shown in Figure 12 and Figure 13, deflection structure includes several end to end cones
Face 9, first conical surface 9 are connect with the edge of end face 1, the last one conical surface 9 is connect with the edge of end face 26, in end face 1
It extends on the direction of end face 26 and is greater than the cone angle of the conical surface adjacent thereto 9 positioned at upstream positioned at the cone angle of the conical surface 9 in downstream.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (9)
1. a kind of fujinon electronic video endoscope lighting system, including sleeve (1) and the optical cable (2) being set in sleeve (1), light is by being located at light
The light emitting end surface (3) of cable (2) front end issues, and the front end of the optical cable (2) is equipped with the light unit of matching being located in sleeve (1), special
Sign is that described is single element lens (4) with light unit, and the lens (4) have close to the just more of light emitting end surface (3) setting
Side shape or circular end face one (5) and and sideline equilateral with end face one one-to-one correspondence of separate light emitting end surface (3) setting are parallel just
Polygon or round end face two (6) is equipped between the end face one (5) and end face two (6) for that will be entered by end face one (5)
The deflection structure that is deflected of light.
2. fujinon electronic video endoscope lighting system according to claim 1, which is characterized in that the end face one (5) is rounded,
The end face two (6) is rounded.
3. fujinon electronic video endoscope lighting system according to claim 1, which is characterized in that the end face one (5) is in just more
Side shape, the end face two (6) are in regular polygon.
4. fujinon electronic video endoscope lighting system according to claim 2 or 3, which is characterized in that the surface of the end face one (5)
Product is greater than the surface area of end face two (6), and the deflection structure includes that the boundary curve along end face one (5) extends to end face two
(6) free form surface (7) at edge, the free form surface (7) is to saturating on the direction that end face one (5) extends to end face two (6)
The distance of mirror (4) central axes gradually becomes smaller.
5. fujinon electronic video endoscope lighting system according to claim 4, which is characterized in that the end face one (5) and freedom
Have between curved surface (7) along the circular orientation face (8) that sleeve (1) length direction extends, the positioning surface (8) is along end face one
(5) edge extends to one end that free form surface (7) lean on proximal end face one (5), the free form surface (7) and positioning surface (8) circle
Arc transition connection, the lens (4) are located in sleeve (1) by positioning surface (8).
6. fujinon electronic video endoscope lighting system according to claim 2 or 3, which is characterized in that the surface of the end face one (5)
Product is greater than the surface area of end face two (6), and the deflection structure includes several end to end conical surfaces (9), described in first
The conical surface (9) is connect with the edge of end face one (5), and the conical surface (9) described in the last one is connect with the edge of end face two (6), is being held
Face one (5) extends on the direction of end face two (6) cone angle for being located at the conical surface (9) in downstream greater than the cone adjacent thereto positioned at upstream
The cone angle in face (9).
7. fujinon electronic video endoscope lighting system according to claim 6, which is characterized in that the end face one (5) and first
Have between a conical surface (9) along the circular orientation face (8) that sleeve (1) length direction extends, the positioning surface (8) is along end face one
(5) edge extends to one end that first conical surface (9) leans on proximal end face one (5), and the lens (4) are fixed by positioning surface (8)
Position is in sleeve (1).
8. fujinon electronic video endoscope lighting system according to claim 1, which is characterized in that the front end of the lens (4) has
The end face two (6) of the transparent plate (10) being located in sleeve (1), the lens (4) sticks on transparent plate (10).
9. fujinon electronic video endoscope lighting system according to claim 1, which is characterized in that the lens (4) are by transparent light
Medium is learned to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821354449.8U CN209059138U (en) | 2018-08-22 | 2018-08-22 | Fujinon electronic video endoscope lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821354449.8U CN209059138U (en) | 2018-08-22 | 2018-08-22 | Fujinon electronic video endoscope lighting system |
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| Publication Number | Publication Date |
|---|---|
| CN209059138U true CN209059138U (en) | 2019-07-05 |
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ID=67090833
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821354449.8U Active CN209059138U (en) | 2018-08-22 | 2018-08-22 | Fujinon electronic video endoscope lighting system |
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| Country | Link |
|---|---|
| CN (1) | CN209059138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109008913A (en) * | 2018-08-22 | 2018-12-18 | 重庆金山医疗器械有限公司 | Endoscope lighting system |
-
2018
- 2018-08-22 CN CN201821354449.8U patent/CN209059138U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109008913A (en) * | 2018-08-22 | 2018-12-18 | 重庆金山医疗器械有限公司 | Endoscope lighting system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211105 Address after: 401120 1-1, 2-1, 3-1, building 5, No. 18, Cuiping Lane 2, Huixing street, Yubei District, Chongqing Patentee after: Chongqing Jinshan Medical Technology Research Institute Co.,Ltd. Address before: 401120 1 office buildings, Jinshan International Industrial City, 18 of Nei sang Road, Hui Xing street, Yubei District, Chongqing. Patentee before: CHONGQING JINSHAN MEDICAL APPLIANCE Co.,Ltd. |
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| TR01 | Transfer of patent right |