CN207502796U - Lens devices - Google Patents
Lens devices Download PDFInfo
- Publication number
- CN207502796U CN207502796U CN201721732630.3U CN201721732630U CN207502796U CN 207502796 U CN207502796 U CN 207502796U CN 201721732630 U CN201721732630 U CN 201721732630U CN 207502796 U CN207502796 U CN 207502796U
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- Prior art keywords
- lens
- glass
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- devices
- frame
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- 239000011521 glass Substances 0.000 claims abstract description 29
- 230000005499 meniscus Effects 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 description 14
- 230000002093 peripheral effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000009738 saturating Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Lenses (AREA)
- Lens Barrels (AREA)
Abstract
The utility model provides a kind of lens devices, include the first lens successively from object side, second lens, central lens group, third lens and the 4th lens, first lens, second lens, the third lens and the 4th lens are plastic lens, first lens, second lens, the third lens and the 4th lens are directly supported by the lens frame of the lens devices, the central lens group includes one or two glass lens and for keeping one or two glass lens holder, one or two glass lens the holders are embedded in directly to be supported by the lens frame of the lens devices.Be configured in this way, can realize the simplification of structure, assembling operation facilitation, it is cost effective while realize that performance improves.
Description
Technical field
The utility model is related to a kind of lens devices, more particularly to a kind of lens devices for having multiple lens.
Background technology
In the prior art, it is proposed that a kind of lens arrangement is that (P is plastic lens to PPGPP, and G is glass lens, lens
Arrangement is shown successively from object side) optical system (referring for example to CN107065126).
In the optical system of existing PPGPP lens arrangements, the small glass of diameter is configured on the inside of lens barrel
In the case of lens, it is typically configured to：Have to keep the lens holders of lens, be received and be fixed on lens holders
Interior multiple lens and aperture etc. are embedded in lens from the front side of lens holders according to the sequence of outer diameter from small to large, and
From the rear side of lens holders lens are embedded according to the sequence of outer diameter from small to large.
For example, as shown in figure 3, have lens holders 50, most front lens 60, the second lens 70, be configured at it is most preceding
In the lens devices of sealing ring 90 between mirror and lens holders, lens holders 50 include abutting in the direction of the optical axis chimeric
The lens carrier 55 of the cyclic annular bearing surface 66 of inner peripheral portion 56, most front lens, the in the direction of the optical axis ring opposite with circumferentia 63
Shape forward surface 56, fixed with the state not contacted with most front lens the second lens 70 lens fixed part 57 (referring for example to
JP2015-125363A)。
However, under this configuration, lens holders have matchingly to be formed respectively with the shape size of each lens
Each maintaining part, therefore the assembling operation of lens is numerous and diverse, and (preceding on front side of easily generating in the processing of lens holders
Group) it is deviated with the axle center of rear side (rear group), which deviates the hydraulic performance decline that can cause lens devices.
Utility model content
Utility model will solve the problems, such as
The main purpose of the utility model is that solving the above problems, provide a kind of in the simplification for realizing structure, assembling work
The facilitation of industry, it is cost effective while realize performance improve PPGPP lens arrangements lens devices.
The solution to the problem
The utility model provides a kind of lens devices, includes the first lens, the second lens, centre successively thoroughly from object side
Microscope group, third lens and the 4th lens, first lens, second lens, the third lens and the described 4th
Lens are plastic lens, and first lens, second lens, the third lens and the 4th lens are by described
The lens frame of lens device directly supports, and the central lens group includes one or two glass lens and for keeping described one
A or two glass lens holder is embedded in one or two glass lens the holders and is filled by the lens
The lens frame put directly supports.
Preferably, first lens, second lens, be embedded in it is one or two glass lens described
The diameter of holder, the third lens and the 4th lens becomes larger successively.
Preferably, first lens, second lens, be embedded in it is one or two glass lens described
The diameter of holder, the third lens and the 4th lens becomes smaller successively.
Preferably, it is integrally formed with aperture in the holder.
Preferably, first lens, second lens, the central lens group, the third lens and
4th lens set spacing board each other.
Preferably, first lens have negative refractive power, and second lens have positive refracting power, and the third is saturating
Mirror has positive refracting power, and the 4th lens have negative refractive power, and the glass lens has positive refracting power.
Preferably, first lens, second lens, the third lens and the 4th lens are aspheric
Face lens.
Preferably, first lens are the negative lenses to the convex meniscus shaped in object side.
Preferably, the glass lens is spherical lens.
The effect of utility model
According to the utility model, for the lens of the first lens as plastic lens~the 4th, in lens frame one landform
Into the maintaining part of the lens of the first lens~the 4th, lens frame to be utilized directly to support the lens of the first lens~the 4th, and for nothing
The glass lens of maintaining part is integrally formed in method as plastic lens in lens frame, by glass lens insertion holder come via
Holder is supported in lens frame.Therefore, it is possible to realize the facilitation of the simplification of structure, assembling operation, cost effective.Also,
It can prevent from deviating with the axle center of rear side on front side of generating in the processing of holder, caused by being deviated as the axle center
The hydraulic performance decline of lens devices so that the performance of lens devices is improved.
Description of the drawings
Fig. 1 is the sectional view of one embodiment of the lens devices involved by the utility model.
Fig. 2 is the sectional view of another embodiment of the lens devices involved by the utility model.
Fig. 3 is the sectional view for the lens devices for representing existing example.
Reference sign
1：Photographing element；5：Lens frame；5d：Chimeric inner peripheral portion；5e：Lens carrier；6：First lens；7：Second thoroughly
Mirror；8：First intermediate lens；8a：Abutting part；8c：Fitting portion；9：Third lens；10：4th lens；11：Light path restriction plate；
12：Intermediate lens holder；12a：Chimeric peripheral part；12b：Chimeric inner peripheral portion；12c：Lens abutting part (rear)；12d：Aperture board
Portion；12e：Lens abutting part (preceding)；13：First spacing board；14：Second spacing board；15：4th lens pressing plate；81：Among first
Lens；82：Second intermediate lens；121：Intermediate lens holder main body；122：Third spacing board.
Specific embodiment
Hereinafter, for the optical lens system involved by the embodiment of the utility model, illustrate to use using attached drawing
The reasons why this structure and effect.In addition, the utility model is not limited to following embodiment.
Fig. 1 is the sectional view of the one embodiment for representing the lens devices involved by the utility model.As shown in Figure 1, thoroughly
It is saturating that lens device includes the first lens 6, the second lens 7, the first intermediate lens 8, third lens 9 and the 4th successively from object side
Mirror 10.
First lens 6 are the plastic lens for having negative refractive power, and are to the aspherical of the convex meniscus shaped in object side
Mirror.By using meniscus shaped lens to the first lens 6, the visual angle of lens devices 10 can be expanded.In lens frame 5, first thoroughly
Mirror 6 is configured to end and is abutted in the direction of the optical axis with the lens carrier 5e of lens frame 5, and end is supported radially with lens frame 5
It connects.
Second lens 7 are the plastic lens for having positive refracting power, and are to the aspherical of the convex meniscus shaped in object side
Mirror.In lens frame 5, the second lens 7 are configured to abut with the first lens 6 across light path restriction plate 11 in the direction of the optical axis,
End abuts radially with lens frame 5.
First intermediate lens 8 is the glass lens for having positive refracting power, and is to the convex spherical lens in image side.First
Intermediate lens 8 is embedded in intermediate lens holder 12.Specifically, the first intermediate lens 8 is configured to fitting portion 8c radially
It is abutted with chimeric inner peripheral portion 12b, abutting part 8a is abutted in the direction of the optical axis with lens abutting part 12c.In addition, it is embedded in first
Between the intermediate lens holders 12 of lens 8 be configured to chimeric peripheral part 12a and supported radially with the chimeric inner peripheral portion 5d of lens frame 5
It connects, and lens abutting part 12e is abutted in the direction of the optical axis with the second lens 7.In addition, in this embodiment it is preferred that
Between the aperture plate portion 12d of lens holders 12 used as aperture.By being integrally formed in intermediate lens holder 12
Aperture can realize the simplification, cost effective of structure.Alternatively, it is also possible to which aperture is not integrally formed, and aperture is separately set.
Third lens 9 are the plastic lens for having positive refracting power, and are to the convex non-spherical lens in image side.In lens frame
In 5, third lens 9 are configured to abut with the first intermediate lens 8 across the first spacing board 13 in the direction of the optical axis, and end is in diameter
It is abutted upwards with lens frame 5.
4th lens 10 are the plastic lens for having negative refractive power, and are to recessed double concave non-in object side and image side
Spherical lens.In lens frame 5, the 4th lens 10 be configured in the direction of the optical axis across the second spacing board 14 and with third lens
9 abut, and end abuts in the direction of the optical axis with the 4th lens pressing plate 15, and end abuts radially with lens frame 5.
In addition, it is additionally provided with photographing element 1 in the image side of the 4th lens 10.
In addition, in the present embodiment, when by the first lens 6, the second lens 7, intermediate lens holder 12, third lens 9,
When the diameter of 4th lens 10 is set to d1, d2, d3, d4, d5, there are diameters as d1 ＜ d2 ＜ d3 ＜ d4 ＜ d5
Relationship.It is from the rear side of lens frame 5 that first lens 6, second are saturating successively according to the sequence of diameter from small to large in assembling lens
Mirror 7, intermediate lens holder 12, third lens 9, the 4th lens 10 are assembled into lens frame 5.
Alternatively, it is also possible to be set as diameter relationship as d1 ＞ d2 ＞ d3 ＞ d4 ＞ d5, closed in this diameter
Under system, in assembling lens, according to the sequence of diameter from small to large successively from the front side of lens frame 5 by the 4th lens 10, third
Lens 9, intermediate lens holder 12, the second lens 7, the first lens 6 are assembled into lens frame 5.
According to the present embodiment, there is the lens frame of the tubular in axle center on the optical axis direction for be included in lens, in lens frame
Two plastic lens for being inside arranged in order and keeping in the direction of the optical axis i.e. anterior lens (PP) are configured in the behind of anterior lens
A glass lens, that is, intermediate lens (G), the behind of intermediate lens configuration two plastic lens, that is, rear lens (PP)
PPGPP lens arrangements lens devices in, have for the intermediate lens holder that keeps intermediate lens, from lens holders
Front side and rear side in either one assemble each lens successively.
According to the structure, for the lens of the first lens as plastic lens~the 4th, is integrally formed in lens frame
The maintaining part of the lens of one lens~the 4th, lens frame to be utilized directly to support the lens of the first lens~the 4th, and for can not be as
The glass lens of maintaining part is integrally formed in plastic lens in lens frame like that, and glass lens insertion holder is come via holding
Part is supported in lens frame.Therefore, it is possible to realize the facilitation of the simplification of structure, assembling operation, cost effective.Further, it is possible to
It prevents from deviating with the axle center of rear side on front side of generating in the processing of holder, lens caused by so as to avoid being deviated as the axle center
The hydraulic performance decline of device so that the performance of lens devices is improved.
In addition, easily the few glass lens of the variations in refractive index relative to temperature change can be adopted as in lens group
The convex lens of centre, therefore structure that is small-sized and being conducive to the stability relative to temperature change can be reached.
Fig. 2 is the sectional view for another embodiment for representing the lens devices involved by the utility model.As shown in Fig. 2, thoroughly
Lens device includes the first lens 6, the second lens 7, the first intermediate lens 81, the second intermediate lens 82, the successively from object side
Three lens 9 and the 4th lens 10.
In the present embodiment, the setting and upper one of the first lens 6, the second lens 7,9 and the 4th lens 10 of third lens
Embodiment is identical, detailed description will be omitted.Only explanation and upper embodiment difference.
The first intermediate lens 81 and the second intermediate lens 82 are configured in the image side of the second lens 7.First intermediate lens 81
It is the spherical lens for the meniscus shaped that side of the object is concave surface and image side surface is convex surface with positive refracting power.Second intermediate lens 82
Equally there is positive refracting power, be the spherical lens for the meniscus shaped that side of the object is concave surface and image side surface is convex surface.
First intermediate lens 81 and the second intermediate lens 82 are embedded in intermediate lens holder main body 121, and
Third spacing board 122 is provided between first intermediate lens 81 and the second intermediate lens 82.
According to the present embodiment, for the lens of the first lens as plastic lens~the 4th, it is integrally formed in lens frame
The maintaining part of the lens of first lens~the 4th, lens frame to be utilized directly to support the lens of the first lens~the 4th, and for can not
The glass lens of maintaining part is integrally formed in lens frame as plastic lens, glass lens insertion holder is come via guarantor
Gripping member is supported in lens frame.Therefore, it is possible to realize the facilitation of the simplification of structure, assembling operation, cost effective.Also, energy
It enough prevents from deviating with the axle center of rear side on front side of generating in the processing of holder, caused by so as to avoid being deviated as the axle center thoroughly
The hydraulic performance decline of lens device so that the performance of lens devices is improved.
In addition, easily the few glass lens of the variations in refractive index relative to temperature change can be adopted as in lens group
The convex lens of centre, therefore structure that is small-sized and being conducive to the stability relative to temperature change can be reached.
In the above-described embodiments, spacing board is provided between lens, but can also omit and these spacing boards are set.
Claims (9)
1. a kind of lens devices, which is characterized in that from object side successively include the first lens, the second lens, central lens group,
Third lens and the 4th lens,
First lens, second lens, the third lens and the 4th lens are plastic lens, described first
Lens, second lens, the third lens and the 4th lens are directly supported by the lens frame of the lens devices,
The central lens group includes one or two glass lens and for keeping one or two glass lens
Holder is embedded in one or two glass lens the holders and is directly propped up by the lens frame of the lens devices
It holds.
2. lens devices according to claim 1, which is characterized in that
First lens, second lens are embedded in one or two glass lens the holder, described
The diameter of three lens and the 4th lens becomes larger successively.
3. lens devices according to claim 1, which is characterized in that
First lens, second lens are embedded in one or two glass lens the holder, described
The diameter of three lens and the 4th lens becomes smaller successively.
4. lens devices according to claim 1, which is characterized in that
Aperture is integrally formed in the holder.
5. lens devices according to claim 1, which is characterized in that
First lens, second lens, the central lens group, the third lens and the 4th lens that
Spacing board is set between this.
6. lens devices according to claim 1, which is characterized in that
First lens have negative refractive power, and second lens have positive refracting power, and the third lens have positive refraction
Power, the 4th lens have negative refractive power, and the glass lens has positive refracting power.
7. lens devices according to claim 6, which is characterized in that
First lens, second lens, the third lens and the 4th lens are non-spherical lenses.
8. lens devices according to claim 6, which is characterized in that
First lens are the negative lenses to the convex meniscus shaped in object side.
9. lens devices according to claim 6, which is characterized in that
The glass lens is spherical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732630.3U CN207502796U (en) | 2017-12-13 | 2017-12-13 | Lens devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732630.3U CN207502796U (en) | 2017-12-13 | 2017-12-13 | Lens devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207502796U true CN207502796U (en) | 2018-06-15 |
Family
ID=62509479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721732630.3U Active CN207502796U (en) | 2017-12-13 | 2017-12-13 | Lens devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207502796U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020052177A (en) * | 2018-09-26 | 2020-04-02 | 株式会社デンソー | Camera module |
| JP2020154121A (en) * | 2019-03-20 | 2020-09-24 | 日本電産サンキョー株式会社 | Lens unit |
| JP2021005022A (en) * | 2019-06-27 | 2021-01-14 | 日本電産サンキョー株式会社 | Lens unit and manufacturing method of the same |
-
2017
- 2017-12-13 CN CN201721732630.3U patent/CN207502796U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020052177A (en) * | 2018-09-26 | 2020-04-02 | 株式会社デンソー | Camera module |
| JP7172363B2 (en) | 2018-09-26 | 2022-11-16 | 株式会社デンソー | The camera module |
| JP2020154121A (en) * | 2019-03-20 | 2020-09-24 | 日本電産サンキョー株式会社 | Lens unit |
| JP7200018B2 (en) | 2019-03-20 | 2023-01-06 | 日本電産サンキョー株式会社 | lens unit |
| JP2021005022A (en) * | 2019-06-27 | 2021-01-14 | 日本電産サンキョー株式会社 | Lens unit and manufacturing method of the same |
| JP7201543B2 (en) | 2019-06-27 | 2023-01-10 | 日本電産サンキョー株式会社 | LENS UNIT AND MANUFACTURING METHOD THEREOF |
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