CN208255601U - A kind of lens barrel structure with filtering functions - Google Patents
A kind of lens barrel structure with filtering functions Download PDFInfo
- Publication number
- CN208255601U CN208255601U CN201820759195.1U CN201820759195U CN208255601U CN 208255601 U CN208255601 U CN 208255601U CN 201820759195 U CN201820759195 U CN 201820759195U CN 208255601 U CN208255601 U CN 208255601U
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- lens barrel
- ring
- spacer ring
- internal diameter
- light
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Abstract
The utility model discloses a kind of lens barrel structures with filtering functions, it include lens barrel, the lens barrel is internally provided with a plurality of spacer rings, the structure of each spacer ring is T-type structure, the front and rear sides of each spacer ring are provided with a connection ring, the internal diameter of the connection ring is less than the internal diameter of spacer ring, forms the channel that light passes through after the corresponding spacer ring combination of the connection ring.The structure increases the spacer ring of T-type structure, then the ring that is cooperatively connected by the inner wall in lens barrel, and the internal diameter of connection ring is less than the internal diameter of spacer ring.Light is when by lens barrel, the light at some edges and with lens barrel inner wall angled too big light can by T-type structure spacer ring inner wall T-type two sides and connection ring reflection, readjust the optical path of light, enable light to concentrate to pass through from connection ring, and then lens barrel inner wall veiling glare can be effectively eliminated.
Description
Technical field
The utility model relates to pick-up lens technical field more particularly to a kind of lens barrel structures with filtering functions.
Background technique
Veiling glare is the harmful light projected by optical system as being not involved in imaging in plane.When the light emission of light source enters mirror
Head can generate the refraction and reflection of various light by a series of eyeglass, lens barrel inner wall, spacer ring and pressure ring inside camera lens, and one
Part light can generate veiling glare.And the veiling glare of camera lens can reduce the contrast and resolution ratio of image, flood the very low image of contrast
Or the details of image, the image quality of optical system is directly reduced, illuminance of image plane brightness unevenness is made.Therefore, camera lens is spuious
The analysis of light is particularly significant to being imaged with control.
The method that traditional camera lens eliminates veiling glare generally coats black matting coating using lens barrel inner wall, this technological operation
Complexity, it is not easy to operate, and increase lens barrel cost.Followed by inner wall is designed to flank, though simple process, extinction effect is poor.
In addition, eliminating veiling glare to eyeglass plating multilayer film, the veiling glare of part lens generation can only be solved, the reflection of lens barrel inner wall can not be solved
Veiling glare problem.
In the utility model patent of Publication No. CN201984195U, discloses a kind of adjustable high-precision and disappear veiling glare
Diaphragm, including connection component and diaphragm piece component, connection component include the first connecting column, third connecting column and the second connection
Column, diaphragm piece component include diaphragm piece, and the first threaded hole is provided on the first connecting column, is provided on one end of the second connecting column
Second screw is provided with the second threaded hole on the other end, third screw, the first threaded hole and second is provided on third connecting column
Screw is adapted, and the second threaded hole and third screw are adapted, and diaphragm piece includes circular ring shape working plate, circumference uniform distribution on working plate
There is mounting hole mounting hole, the second screw is connected in the first threaded hole by mounting hole, and the second threaded hole passes through mounting hole and the
The connection of three screws.The utility model solve diaphragm manufacturing process in the prior art it is complicated, using low with limitation, precision
Technical problem, the utility model greatly reduce difficulty of processing, and precision is easily guaranteed that, suitable for complicated, the large-scale veiling glare light that disappears
Door screen.
The utility model still, should to solve influence of the veiling glare to imaging by designing a kind of diaphragm of veiling glare that can disappear
Diaphragm is only applicable to complicated, large-scale diaphragm for eliminating stray light.
Summary of the invention
Shortcoming present in view of the above technology, the purpose of this utility model is to provide one kind to have filtering functions
Lens barrel structure, the structure by lens barrel inner wall increase T-type structure spacer ring, lens barrel inner wall veiling glare can be effectively eliminated.
Another of the utility model is designed to provide a kind of lens barrel structure with filtering functions, structure installation letter
Single, easy to operate, processing cost is low, is easily installed, good practical effect, can effectively solve the excellent of lens barrel inner wall reflection veiling glare
Point.
To achieve the above object, the technical solution of the utility model is as follows.
A kind of lens barrel structure with filtering functions, includes lens barrel, and the lens barrel is internally provided with a plurality of spacer rings, institute
The structure for stating each spacer ring is T-type structure, and the front and rear sides of each spacer ring are provided with a connection ring, the connection ring
Internal diameter be less than the internal diameter of spacer ring, formed after the corresponding spacer ring combination of the connection ring light pass through it is logical
Road.In the utility model, which increases the spacer ring of T-type structure by the inner wall in lens barrel, can effectively eliminate lens barrel
Inner wall veiling glare, and structure installation is simple, and easy to operate, processing cost is low, is easily installed, good practical effect, can be effective
The advantages of solving lens barrel inner wall reflection veiling glare, the internal diameter of the connection ring can be according to the Demand Design of user, to disappear
Except veiling glare.
Further, the quantity of the spacer ring is 4, and the quantity of the connection ring is 5.In the utility model, when
The light of light source enters spacer ring, by spacer ring reflective portion veiling glare, then by connection ring stop portions veiling glare, by multiple spacer rings with
The mutual cooperation of connection ring makes to be substantially reduced by the veiling glare of the lens barrel.
Further, the spacer ring includes the first connecting column and the second connecting column, and first connecting column and second connect
After column is integrally formed, the two is T-shaped, and forms the channel that light passes through, and the internal diameter of first connecting column is less than second
The internal diameter of connecting column.In the utility model, the internal diameter of the second connecting column is significantly greater than the first connecting column, makes light
Line is reflected in the second connecting column, reduces passing through for veiling glare.
Further, internal diameter of the internal diameter of the connection ring less than the first connecting column.Work as in the utility model
In, the internal diameter of connection ring is relatively small, facilitates filtering veiling glare.
Further, it is provided with inner groovy on each spacer ring, is provided with boss in each connection ring, institute
The side that inner groovy is arranged in boss is stated, and is fixedly connected with inner groovy.In the utility model, light is by the first connecting column
After, by the inner groovy at the second connecting column, a part of light is reflected, and by the boss at connection ring, refilters portion
Light splitter makes to reduce by the veiling glare detail of the lens barrel.
The beneficial effects of the utility model are: compared with prior art, it is provided by the utility model a kind of with optical filtering function
Can lens barrel structure, which increases the spacer ring of T-type structure by the inner wall in lens barrel, then the ring that is cooperatively connected, connection ring it is interior
Diameter size is less than the internal diameter of spacer ring.Light is when by lens barrel, the light at some edges and angled too with lens barrel inner wall institute
Big light can pass through the T-type two sides of the spacer ring inner wall of T-type structure and the reflection of connection ring, readjust the optical path of light, make
Light can be concentrated to be passed through from connection ring, and then can effectively eliminate lens barrel inner wall veiling glare, and structure installation is simple, behaviour
Facilitate, processing cost is low, is easily installed, good practical effect, can effectively solve the advantages of lens barrel inner wall reflects veiling glare, the company
The internal diameter for connecing ring can be according to the Demand Design of user, to eliminate veiling glare.
Detailed description of the invention
Fig. 1 is the partial enlarged view of the part A of the utility model.
Fig. 2 is the cross-sectional view of the utility model.
Fig. 3 is the structural schematic diagram of the spacer ring of the utility model.
Specific embodiment
In order to which the purpose of this utility model, technical solution and beneficial effect is more clearly understood, to the utility model into
Row is further described.It should be appreciated that specific embodiment described herein is only used to explain the utility model, and do not have to
In restriction the utility model.
As shown in figure 1 to 3, a kind of lens barrel structure with filtering functions realized by the utility model, includes mirror to ginseng
Cylinder 1, lens barrel 1 is internally provided with a plurality of spacer rings 2, and the structure of each spacer ring 2 is T-type structure, the front and rear sides of each spacer ring 2
It is provided with a connection ring 3, the internal diameter of connection ring 3 is less than the internal diameter of spacer ring 2, the corresponding spacer ring 2 of connection ring 3
The channel that light passes through is formed after combination.In the utility model, which increases T-type structure by the inner wall in lens barrel
Spacer ring can effectively eliminate lens barrel inner wall veiling glare, and structure installation is simple, and easy to operate, processing cost is low, is easy to pacify
Dress, good practical effect, the advantages of can effectively solving lens barrel inner wall reflection veiling glare, the internal diameter of the connection ring can be according to making
The Demand Design of user, to eliminate veiling glare.
In the present embodiment, the quantity of spacer ring 2 is 4, and the quantity of connection ring 3 is 5.In the utility model, when
The light of light source enters spacer ring, by spacer ring reflective portion veiling glare, then by connection ring stop portions veiling glare, by multiple spacer rings with
The mutual cooperation of connection ring makes to be substantially reduced by the veiling glare of the lens barrel.
In the present embodiment, spacer ring 2 includes the first connecting column 21 and the second connecting column 22,21 He of the first connecting column
After second connecting column 22 is integrally formed, the two is T-shaped, and forms the channel that light passes through, the internal diameter of the first connecting column 21
Less than the internal diameter of the second connecting column 22.In the utility model, the internal diameter of the second connecting column is significantly greater than first
Connecting column reflects light in the second connecting column, reduces passing through for veiling glare.
In the present embodiment, internal diameter of the internal diameter of connection ring 3 less than the first connecting column 21.In the utility model
In the middle, the internal diameter of connection ring is relatively small, facilitates filtering veiling glare.
In the present embodiment, it is provided with inner groovy 23 on each spacer ring 2, is provided with boss 31 in each connection ring 3,
The side of inner groovy 23 is arranged in boss 31, and is fixedly connected with inner groovy 23.In the utility model, light is connected by first
It connects after column enters, by the inner groovy at the second connecting column, a part of light is reflected, by the boss at connection ring, after
Some light is filtered, makes to reduce by the veiling glare detail of the lens barrel.
In the present embodiment, by optical simulation (tracepro) software, to the lens barrel for increasing T-type spacer ring structure and commonly
Lens barrel carries out the ray tracing of this optical system, analyzes the distribution of its veiling glare, the results showed that, veiling glare is substantially reduced.
In the present embodiment, it carries out the experiment of sample camera lens to the lens barrel and common lens barrel that increase T-type spacer ring structure to test, knot
Fruit demonstrates the correctness of tracepro software Stray light analysis result, shows that the lens barrel for increasing T-type spacer ring structure has optical filtering function
Energy.
The beneficial effects of the utility model are: compared with prior art, it is provided by the utility model a kind of with optical filtering function
Can lens barrel structure, which increases the spacer ring of T-type structure by the inner wall in lens barrel, then the ring that is cooperatively connected, connection ring it is interior
Diameter size is less than the internal diameter of spacer ring.Light is when by lens barrel, the light at some edges and angled too big with lens barrel arm institute
Light can by T-type structure spacer ring inner wall T-type two sides and connection ring reflection, readjust the optical path of light, make light
Line can be concentrated to be passed through from connection ring, and then can effectively eliminate lens barrel inner wall veiling glare, and structure installation is simple, operation
The advantages of convenient, processing cost is low, is easily installed, good practical effect, can effectively solve lens barrel inner wall reflection veiling glare, the connection
The internal diameter of ring can be according to the Demand Design of user, to eliminate veiling glare.
Disclosed above is only a specific embodiment of the utility model, but the utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into the protection scope of the utility model.
Claims (5)
1. a kind of lens barrel structure with filtering functions, includes lens barrel, which is characterized in that the lens barrel is internally provided with plural number
The structure of a spacer ring, each spacer ring is T-type structure, and the front and rear sides of each spacer ring are provided with a connection ring,
The internal diameter of the connection ring is less than the internal diameter of spacer ring, forms light after the corresponding spacer ring combination of the connection ring
By channel.
2. the lens barrel structure according to claim 1 with filtering functions, which is characterized in that the quantity of the spacer ring is 4
A, the quantity of the connection ring is 5.
3. the lens barrel structure according to claim 1 with filtering functions, which is characterized in that the spacer ring includes first
After connecting column and the second connecting column, first connecting column and the second connecting column are integrally formed, the two is T-shaped, and forms light
By channel, the internal diameter of the internal diameter of first connecting column less than the second connecting column.
4. the lens barrel structure according to claim 3 with filtering functions, which is characterized in that the internal diameter ruler of the connection ring
The very little internal diameter less than the first connecting column.
5. the lens barrel structure according to claim 1 with filtering functions, which is characterized in that be all provided on each spacer ring
It is equipped with inner groovy, boss is provided in each connection ring, the side of inner groovy, and and inner groovy is arranged in the boss
It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820759195.1U CN208255601U (en) | 2018-05-21 | 2018-05-21 | A kind of lens barrel structure with filtering functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820759195.1U CN208255601U (en) | 2018-05-21 | 2018-05-21 | A kind of lens barrel structure with filtering functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208255601U true CN208255601U (en) | 2018-12-18 |
Family
ID=66481015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820759195.1U Active CN208255601U (en) | 2018-05-21 | 2018-05-21 | A kind of lens barrel structure with filtering functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208255601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275271A (en) * | 2019-07-15 | 2019-09-24 | 北京遥感设备研究所 | A kind of connection structure of reflecting mirror and shaft |
-
2018
- 2018-05-21 CN CN201820759195.1U patent/CN208255601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275271A (en) * | 2019-07-15 | 2019-09-24 | 北京遥感设备研究所 | A kind of connection structure of reflecting mirror and shaft |
| CN110275271B (en) * | 2019-07-15 | 2021-09-14 | 北京遥感设备研究所 | Connecting structure of reflector and rotating shaft |
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