CN104434024B - Novel fundus imaging lens - Google Patents
Novel fundus imaging lens Download PDFInfo
- Publication number
- CN104434024B CN104434024B CN201410740397.8A CN201410740397A CN104434024B CN 104434024 B CN104434024 B CN 104434024B CN 201410740397 A CN201410740397 A CN 201410740397A CN 104434024 B CN104434024 B CN 104434024B
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- China
- Prior art keywords
- lens
- optical fiber
- end body
- imaging lens
- stack shell
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Abstract
The invention relates to a fundus imaging lens which comprises a hollow front end body. A lens hole is formed in one end, close to an object space, of the front end body; a front lens is arranged in the lens hole; a lens assembly is arranged at the other end of the front end body. The technical points of the fundus imaging lens lie in that a plurality of strip optical fibers capable of guiding light to a first lens are arranged on the front end body; one end of each of the strip optical fibers extends towards the direction of the front lens; the other ends of the strip optical fibers extend towards one end, away from the object space, of the lens assembly. The fundus imaging lens has a simple structure, adopts strip optical fibers and is low in cost; and optical fibers are easy to replace after being damaged.
Description
【Technical field】
This utility model is related to a kind of camera lens, more particularly to for shooting the optical lens on optical fundus.
【Background technology】
In order to make the inspection result of eyes more accurate, the optical lens by fundus imaging are needed.The definition of imaging
It is the key factor for affecting this optical lens accuracy, existing fundus imaging camera lens is generally strengthened using fibre faceplate and increased
Camera lens periphery brightness.But the processing technology of fibre faceplate is difficult, high cost is fragile, makes fundus imaging camera lens product price
Remain high always.
【Utility model content】
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of simple structure, low cost, using strip
The novel ocular bottom imaging lens of optical fiber.
In order to solve the above problems, this utility model is employed the following technical solutions：
A kind of novel ocular bottom imaging lens, including hollow front end body, close object space one end of described front end body is provided with
Lens hole, is provided with front lens in described lens hole, the other end of described front end body is provided with lens subassembly, it is characterised in that：
Described front end body is provided with many strip optical fiber that light can be directed to front lens, and one end of described strip optical fiber is forward
Eyeglass direction extends, and the one end of the other end to lens subassembly away from object space extends.
A kind of novel ocular bottom as above imaging lens, it is characterised in that：Described front end body is provided with multiple sensings
The optical fiber installing hole of front lens, described strip optical fiber is inserted in optical fiber installing hole.
A kind of novel ocular bottom as above imaging lens, it is characterised in that：Described strip optical fiber is near object space one end
The metal mounting shell being inserted in optical fiber installing hole is provided with, described front end body is provided with and is fixed on described metal mounting shell
Fixed lid in optical fiber installing hole.
A kind of novel ocular bottom as above imaging lens, it is characterised in that：Optical fiber is provided with described optical fiber installing hole
Installation step, described metal mounting shell is provided with the positioning step that one end is leaned against on optical fiber installation step, described fixed lid
It is provided with the cover slot connected with described optical fiber installing hole, described fixed cover spiro stricture of vagina is connected in cover slot and can lean described
Positioning step.
A kind of novel ocular bottom as above imaging lens, it is characterised in that：Multiple described optical fiber installing holes are in front end
Form a circle circumferentially on body.
A kind of novel ocular bottom as above imaging lens, it is characterised in that：It is described that described front end body is provided with installation
Front lens eyeglass installation step, be provided with ring-shaped step, described annular table in the side of front lens on described front end body
Rank female thread is connected with the locating ring of the front lens for leaning described.
A kind of novel ocular bottom as above imaging lens, it is characterised in that：Described lens subassembly include with it is described
Front end body connection and the stack shell of both ends open, are provided with multiple lens coaxial with described front lens in described stack shell.
A kind of novel ocular bottom as above imaging lens, it is characterised in that：Described stack shell away from thing to one end set
There is stack shell step, described stack shell step is provided with fiber optic hub, and the other end of described strip optical fiber is inserted along stack shell outer wall
Enter in fiber optic hub.
A kind of novel ocular bottom as above imaging lens, it is characterised in that：It is provided with adjacent described in described stack shell
The spacer sleeve of lens locations spaced.
A kind of novel ocular bottom as above imaging lens, it is characterised in that：Described front end body is taper shell.
The beneficial effects of the utility model have：By arranging multiple strip optical fiber on the body of front end, optical fiber can illuminate whole
Individual camera lens, simple structure, using strip optical fiber, low cost, even and if certain optical fibre damage, directly changing the optical fiber for damaging is
Can；The front end of strip optical fiber is provided with metal mounting shell, is fixed metal mounting shell by fixed lid, effectively prevent strip light
Fibre loosens, simple structure, and locking is convenient；Front lens is locked by locating ring, simple structure, locking is convenient.
【Description of the drawings】
Fig. 1 is axonometric chart of the present utility model；
Fig. 2 is main sectional view of the present utility model；
Fig. 3 is explosive view of the present utility model；
Fig. 4 is the main sectional view of front end body of the present utility model.
【Specific embodiment】
Below in conjunction with the accompanying drawings this utility model is described in further detail with specific embodiment：
As shown in figs. 1 and 4, a kind of novel ocular bottom imaging lens, including hollow front end body 1, front end body 1 is taper shell
Body.Close object space one end of front end body 1 is provided with lens hole 11, lens hole 11 and is provided with front lens 2, and front end body 1 is provided with installation
The eyeglass installation step 15 of described front lens 2, ring-shaped step 16, ring-shaped step are provided with front end body 1 in the side of front lens 2
The locating ring 7 for leaning front lens 2 is threaded connection in 16, is locked front lens 2 by screwed in place ring 7.Front end body 1
The other end is provided with lens subassembly 3, and front end body 1 is provided with many strip optical fiber 4 that light can be directed to front lens 2, strip light
Fine 4 one end to the direction of front lens 2 extends, and the one end of the other end to lens subassembly 3 away from object space extends.Front end body 1 is provided with
Multiple optical fiber installing holes 12 for pointing to front lens 2, strip optical fiber 4 is inserted in optical fiber installing hole 12, multiple optical fiber installing holes 12
Form a circle on front end body 1 circumferentially, strip optical fiber 4 is inserted into one by one in an optical fiber installing hole 12, it is circumferential uniform, send out
Light is uniform.Strip optical fiber 4 is provided with the metal mounting shell 5 being inserted in optical fiber installing hole 12, metal mounting shell 5 near object space one end
For hollow housing, front end body 1 is provided with the fixed lid 6 being fixed on metal mounting shell 5 in optical fiber installing hole 12.Optical fiber installing hole
Optical fiber installation step 13 is provided with 12, metal mounting shell 5 is provided with the positioning step 51 that one end is leaned against on optical fiber installation step 13,
Fixed lid 6 is provided with the cover slot 14 connected with optical fiber installing hole 12, and cover slot 14 exposes positioning step 51, and the fixed screw thread of lid 6 connects
Positioning step 51 is connected in cover slot 14 and can be leaned, after tightening by fixed lid 6 positioning step 51 will be held out against, metal is installed
Shell 5 is fixed.
Lens subassembly 3 include being connected with front end body 1 and both ends open stack shell 31, is provided with multiple and front lens in stack shell 31
2 coaxial lens 32, open at one end and the opening of front end body 1 of stack shell 31 are threaded connection.Stack shell 31 away from thing to
One end is provided with stack shell step 33, and stack shell step 33 is provided with fiber optic hub 34, and the other end of strip optical fiber 4 is along the outer wall of stack shell 31
It is inserted in fiber optic hub 34.The spacer sleeve 35 of the locations spaced of adjacent lens 32 is provided with stack shell 31, by 35 pairs of cylinders of spacer sleeve
Lens 32 adjacent in body 31 are positioned, and another end opening of stack shell 31 can arrange locating ring and lock on the lens 32 of the other end
Tightly.
Claims (8)
1. a kind of novel ocular bottom imaging lens, including hollow front end body (1), close object space one end of described front end body (1)
Lens hole (11) is provided with, in described lens hole (11) front lens (2) is provided with, the other end of described front end body (1) is provided with
Mirror assembly (3), it is characterised in that：Described front end body (1) is provided with many strip light that light can be directed to front lens (2)
Fine (4), one end of described strip optical fiber (4) extends to front lens (2) direction, and the other end is to lens subassembly (3) away from object space
One end extend；Described front end body (1) is provided with the optical fiber installing hole (12) of multiple sensings front lens (2), described strip
Optical fiber (4) is inserted in optical fiber installing hole (12), and strip optical fiber (4) is provided near object space one end and is inserted into optical fiber installing hole (12)
Interior metal mounting shell (5), described front end body (1) is provided with and for described metal mounting shell (5) to be fixed on optical fiber installing hole
(12) the fixed lid (6) in.
2. a kind of novel ocular bottom imaging lens according to claim 1, it is characterised in that：Described optical fiber installing hole (12)
Optical fiber installation step (13) is inside provided with, described metal mounting shell (5) is provided with one end and leans against on optical fiber installation step (13)
Positioning step (51), described fixed lid (6) is provided with the cover slot (14) connected with described optical fiber installing hole (12), described
Fixed lid (6) is threaded in cover slot (14) and can lean described positioning step (51).
3. a kind of novel ocular bottom imaging lens according to claim 2, it is characterised in that：Multiple described optical fiber installing holes
(12) form a circle circumferentially on front end body (1).
4. a kind of novel ocular bottom imaging lens according to claim 1, it is characterised in that：Set on described front end body (1)
There is the eyeglass installation step (15) of the front lens (2) for installing described, set in the side of front lens (2) on described front end body (1)
There is ring-shaped step (16), described ring-shaped step (16) female thread is connected with the locating ring (7) of the front lens (2) for leaning described.
5. a kind of novel ocular bottom imaging lens according to claim 1, it is characterised in that：Described lens subassembly (3) bag
Include be connected with described front end body (1) and both ends open stack shell (31), be provided with described stack shell (31) it is multiple with it is described
The coaxial lens (32) of front lens (2).
6. a kind of novel ocular bottom imaging lens according to claim 5, it is characterised in that：Described stack shell (31) is away from thing
To one end be provided with stack shell step (33), described stack shell step (33) is provided with fiber optic hub (34), described strip optical fiber
(4) the other end is inserted in fiber optic hub (34) along stack shell (31) outer wall.
7. a kind of novel ocular bottom imaging lens according to claim 5, it is characterised in that：It is provided with described stack shell (31)
The spacer sleeve (35) of adjacent described lens (32) locations spaced.
8. a kind of novel ocular bottom imaging lens according to claim 1, it is characterised in that：Described front end body (1) is cone
Shape housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740397.8A CN104434024B (en) | 2014-12-04 | 2014-12-04 | Novel fundus imaging lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740397.8A CN104434024B (en) | 2014-12-04 | 2014-12-04 | Novel fundus imaging lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104434024A CN104434024A (en) | 2015-03-25 |
| CN104434024B true CN104434024B (en) | 2017-04-26 |
Family
ID=52881340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410740397.8A Active CN104434024B (en) | 2014-12-04 | 2014-12-04 | Novel fundus imaging lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104434024B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3628396B2 (en) * | 1995-10-05 | 2005-03-09 | 博 長田 | Fundus observation method for animals and video camera for fundus observation |
| JP2003047595A (en) * | 2001-08-06 | 2003-02-18 | Nidek Co Ltd | Ophthalmic imaging system |
| CN102038484A (en) * | 2009-10-11 | 2011-05-04 | 杨利尔 | Wide-angle zoom fundus instrument |
| CN201840466U (en) * | 2010-09-29 | 2011-05-25 | 中山联合光电科技有限公司 | Wide-angle-lens high-definition retinal imaging system for premature infant retinopathy examination |
| CN103815869A (en) * | 2014-03-21 | 2014-05-28 | 苏州微清医疗器械有限公司 | Handheld type fundus camera |
| CN204293129U (en) * | 2014-12-04 | 2015-04-29 | 中山联合光电科技有限公司 | Imaging lens at the bottom of a kind of Novel ocular |
-
2014
- 2014-12-04 CN CN201410740397.8A patent/CN104434024B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104434024A (en) | 2015-03-25 |
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