CN207232499U - L-shaped high definition splices projection lens - Google Patents
L-shaped high definition splices projection lens Download PDFInfo
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- CN207232499U CN207232499U CN201721244991.3U CN201721244991U CN207232499U CN 207232499 U CN207232499 U CN 207232499U CN 201721244991 U CN201721244991 U CN 201721244991U CN 207232499 U CN207232499 U CN 207232499U
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Abstract
The utility model provides a kind of L-shaped high definition splicing projection lens, belong to projection lens technical field, it is with optical system lens group, the optical system lens group is made of focusing group, reflection group and front group successively along optical axis from object plane to image planes direction, and the focusing group is followed successively by along optical axis from object plane to image planes direction：First meniscus lens, the second meniscus lens, the 3rd meniscus lens, the 4th meniscus lens, the front group are followed successively by along optical axis from object plane to image planes direction：First biconvex lens, the first biconcave lens, the 5th meniscus lens, the 6th meniscus lens, the 7th meniscus lens, the second biconcave lens, the second biconvex lens, the 3rd biconvex lens, the 8th meniscus lens and the 4th biconvex lens.The utility model L-shaped high definition splices projection lens, is made of 14 lens, using short focus, L-shaped structure, ensure that short distance, while resolution ratio is up to 1920 × 1080P.
Description
Technical field
The utility model belongs to projection lens technical field, more particularly to a kind of L-shaped high definition splicing projection lens.
Background technology
DLP concatenation units weakness maximum compared with liquid crystal splicing display unit is：First, tank thickness is big, existing to installing
Field environmental requirement is high, restricts the lifting of occupation rate of market.2nd, resolution ratio is low, influences the visual effect of image.Meanwhile projecting mirror
Head, in order to ensure that the performance of packaging efficiency and product is stablized, conventionally employed is to improve design requirement, receive tight part processing request
To ensure the properties of product of camera lens and packaging efficiency.These measures would generally increase product cost, and the production of scale for
Cost requirement higher, reduces cost, ensures that packaging efficiency and properties of product stability are most important.
The patent of Publication No. CN101887163A, which discloses, is related to a kind of front focusing and focus-fixing projection lens, is mainly used for
DMD digital micromirror array reflective projection systems (DLP), it is mainly characterized by：Optical system in camera lens is by with negative light focus
The focusing group [U1] of degree and the field lens [U3] of the fixation group [U2] of positive light coke and positive light coke composition, [U1], [U2], [U3]
Arranged along optical axis from the order of the lateral image plane side of screen.The back-and-forth motion wherein organized by [U1], realizes various different projections
The imaging requirements of distance.The system has that preceding group focuses, is simple in structure, camera lens latter end bore is smaller and long back work distance etc. is special
Point, for the lens in camera lens all using spherical lens, good manufacturability, adapts to batch production.There is following deficiency in the projection lens：
The camera lens projection distance is grown so that tank thickness is big；Resolution ratio is low, needs to be further improved.
Utility model content
Based on the deficiencies of the prior art, technical problem to be solved in the utility model is to provide a kind of L-shaped, high-resolution
The rear-projection combination camera lens of rate, short focus.
In order to solve the above technical problems, technical solution is used by the utility model：
L-shaped high definition splices projection lens, has an optical system lens group, and the optical system lens group is along optical axis from object plane
Be made of successively focusing group, reflection group and front group to image planes direction, the focusing group along optical axis from object plane to image planes direction according to
It is secondary to be：First meniscus lens, the second meniscus lens, the 3rd meniscus lens, the 4th meniscus lens, the front group is along optical axis from thing
Face is followed successively by image planes direction：It is first biconvex lens, the first biconcave lens, the 5th meniscus lens, the 6th meniscus lens, the 7th curved
Month lens, the second biconcave lens, the second biconvex lens, the 3rd biconvex lens, the 8th meniscus lens and the 4th biconvex lens.
Preferably, first meniscus lens, the second meniscus lens, the 3rd meniscus lens, the 4th meniscus lens composition the
One balsaming lens group.
Preferably, first biconvex lens, the first biconcave lens and the 5th meniscus lens form the second balsaming lens group,
6th meniscus lens and the 7th meniscus lens form the 3rd balsaming lens group, second biconcave lens and the second lenticular
Microscope group is glued into the 4th balsaming lens group, the 3rd biconvex lens, the 8th meniscus lens and the 4th biconvex lens composition the 5th
Lens group.
Preferably, first meniscus lens is diverging meniscus lens, and second meniscus lens is diverging meniscus lens, described
3rd meniscus lens is diverging meniscus lens, and the 4th meniscus lens is positive meniscus lens, and the 5th meniscus lens is just curved
Month lens, the 6th meniscus lens is diverging meniscus lens, and the 7th meniscus lens is positive meniscus lens, the 8th bent moon
Lens are diverging meniscus lens.
Preferably, the effective focal length of the L-shaped high definition splicing projection lens is 7.56mm.
Preferably, the projection of the L-shaped high definition splicing projection lens is compared for 0.48.
Preferably, the relative aperture of the L-shaped high definition splicing projection lens is 2.4.
Compared with prior art, the beneficial effects of the utility model are as follows：
The utility model is used through the above technical solutions, providing a kind of L-shaped, high-resolution, the rear-projection combination of short focus
Camera lens.The utility model L-shaped high definition splices projection lens, is made of 14 lens, using short focus, L-shaped structure, ensure that short distance
From, while resolution ratio belongs to high definition camera lens up to 1920 × 1080P；Ratio is projected by reducing, and changes the structure shape of camera lens
Formula, reduces projection distance, the large angle of camera lens outgoing, so as to reduce complete machine framework thickness.The utility model high definition projection lens
In design, using suitable number of lenses, according to the arrangement of each eyeglass, optimize structural technique designing, ensure the assembling effect of product
Rate and properties of product stability, reach the projection lens of the full filed high definition 1080P with good process.Pass through said lens
Organic assembling, effective focal length f '=7.56mm of gained projection lens, relative aperture number F/#=2.4, transmission function edge
66pl/mm, center 100lp/mm, project ratio 0.48.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1：The utility model L-shaped high definition splices the optical system diagram of projection lens；
Fig. 2：The utility model L-shaped high definition splices the structure diagram of projection lens；
Fig. 3：The utility model L-shaped high definition splices the transfer curve figure of projection lens.
Embodiment
The utility model in order to better understand, further fairly sets out in the utility model with reference to embodiment
Hold, but the protection content of the utility model is not limited solely to the following examples.In the following description, a large amount of tools are given
The details of body more thoroughly understands in order to provide to the utility model.It is however, aobvious and easy to those skilled in the art
See, the utility model may not need one or more of these details and be carried out.
Refering to Fig. 1 ~ 2, L-shaped high definition splicing projection lens, there is optical system lens group, the optical system lens group edge
Optical axis is made of focusing group 101, reflection group 201 and front group 301 successively from object plane to image planes direction, 101 edge of focusing group
Optical axis is followed successively by from object plane to image planes direction：First meniscus lens 1, the second meniscus lens 2, the 3rd meniscus lens 3, the 4th bent moon
Lens 4, the front group 301 are followed successively by along optical axis from object plane to image planes direction：First biconvex lens 5, the first biconcave lens 6,
5th meniscus lens 7, the 6th meniscus lens 8, the 7th meniscus lens 9, the second biconcave lens 10, the second biconvex lens the 11, the 3rd
Biconvex lens 12, the 8th meniscus lens 13 and the 4th biconvex lens 14.
First meniscus lens 1, the second meniscus lens 2, the 3rd meniscus lens 3, the 4th meniscus lens 4 form the first glue
Close lens group.
First biconvex lens 5, the first biconcave lens 6 and the 5th meniscus lens 7 form the second balsaming lens group, described
6th meniscus lens 8 and the 7th meniscus lens 9 form the 3rd balsaming lens group, 10 and second lenticular of the second biconcave lens
Mirror 11 forms the 4th balsaming lens group, and the 3rd biconvex lens 12, the 8th meniscus lens 13 and the 4th biconvex lens 14 form
5th balsaming lens group.
First meniscus lens 1 is diverging meniscus lens, and second meniscus lens 2 is diverging meniscus lens, the described 3rd
Meniscus lens 3 is diverging meniscus lens, and the 4th meniscus lens 4 is positive meniscus lens, and the 5th meniscus lens 7 is positive bent moon
Lens, the 6th meniscus lens 8 are diverging meniscus lens, and the 7th meniscus lens 9 is positive meniscus lens, the 8th bent moon
Lens 13 are diverging meniscus lens.
The utility model L-shaped high definition splicing projection lens uses 8 groups of 14 lens optical system structures as shown in Figure 1,
Using structural manufacturing process fixed design form as shown in Figure 2, it can ensure that assembling product efficiency is stablized with performance, high resolution,
Good manufacturability, is produced on a large scale.
The effective focal length of the utility model L-shaped high definition splicing projection lens is 7.56mm, and projection is than being 0.48, relative aperture
For 2.4, transmission function edge 66pl/mm, center 100lp/mm（As shown in Figure 3）.
To meet the requirement of above-mentioned performance parameter, the structural parameters below by embodiment to each lens in projection lens
It is further described.
In Fig. 1, from left to right lens parameter structural parameters are as shown in table 1；
1 projection lens Optic structure parameter of table
| Face number | Lens | Radius of curvature/mm | Thickness/mm |
| 1 | G01 | 64.14 | 4.5 |
| 2 | G01 | 22.32 | 13.1 |
| 3 | G02 | 51.469 | 8 |
| 4 | G02 | 27.625 | 14.3 |
| 5 | G03/04 | 161.9 | 4.3 |
| 6 | G03/04 | 25.316 | 7.2 |
| 7 | G03/04 | 26 | 51 |
| 8 | G05/06 | 44 | 3.9 |
| 9 | G05/06 | -89.5 | 1.7 |
| 10 | G05/06 | 21.656 | 0.8 |
| 11 | G07 | 35.6 | 3.1 |
| 12 | G07 | 109.19 | 14.59 |
| Stop | 18.7015 | ||
| 13 | G08/09 | 52.856 | 5 |
| 14 | G08/09 | 15.7 | 3.2 |
| 15 | G08/09 | -57.1 | 5.1 |
| 16 | G10/11 | -29.6 | 3 |
| 17 | G10/11 | 61 | 7.8 |
| 18 | G10/11 | -33.7 | 0.2 |
| 19 | G12 | 42.44 | 6.3 |
| 20 | G12 | -51.25 | 0.2 |
| 21 | G13/14 | 48.6 | 3.6 |
| 22 | G13/14 | 29.36 | 6.1 |
| 23 | G13/14 | -87.43 |
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, this area
Other modifications or equivalent substitution that those of ordinary skill makes the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme, should all cover among the right of the utility model.
Claims (7)
1. L-shaped high definition splices projection lens, there is optical system lens group, it is characterised in that：The optical system lens group edge
Optical axis is made of focusing group, reflection group and front group successively from object plane to image planes direction, the focusing group along optical axis from object plane to
Image planes direction is followed successively by：First meniscus lens, the second meniscus lens, the 3rd meniscus lens, the 4th meniscus lens, the front group
It is followed successively by along optical axis from object plane to image planes direction：First biconvex lens, the first biconcave lens, the 5th meniscus lens, the 6th bent moon
Lens, the 7th meniscus lens, the second biconcave lens, the second biconvex lens, the 3rd biconvex lens, the 8th meniscus lens and the 4th pair
Convex lens.
2. L-shaped high definition according to claim 1 splices projection lens, it is characterised in that：First meniscus lens, second
Meniscus lens, the 3rd meniscus lens, the 4th meniscus lens form the first balsaming lens group.
3. L-shaped high definition according to claim 2 splices projection lens, it is characterised in that：First biconvex lens, first
Biconcave lens and the 5th meniscus lens form the second balsaming lens group, the 6th meniscus lens and the 7th the meniscus lens composition the
Three balsaming lens groups, second biconcave lens and the second biconvex lens form the 4th balsaming lens group, the 3rd lenticular
Mirror, the 8th meniscus lens and the 4th biconvex lens form the 5th balsaming lens group.
4. L-shaped high definition according to claim 1 splices projection lens, it is characterised in that：First meniscus lens is negative
Meniscus lens, second meniscus lens are diverging meniscus lens, and the 3rd meniscus lens is diverging meniscus lens, and the described 4th is curved
The moon, lens were positive meniscus lens, and the 5th meniscus lens is positive meniscus lens, and the 6th meniscus lens is diverging meniscus lens,
7th meniscus lens is positive meniscus lens, and the 8th meniscus lens is diverging meniscus lens.
5. projection lens is spliced according to claim 1 ~ 4 any one of them L-shaped high definition, it is characterised in that：Effective focal length is
7.56mm。
6. projection lens is spliced according to claim 1 ~ 4 any one of them L-shaped high definition, it is characterised in that：Projection is than being 0.48.
7. projection lens is spliced according to claim 1 ~ 4 any one of them L-shaped high definition, it is characterised in that：Relative aperture is
2.4。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721244991.3U CN207232499U (en) | 2017-09-27 | 2017-09-27 | L-shaped high definition splices projection lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721244991.3U CN207232499U (en) | 2017-09-27 | 2017-09-27 | L-shaped high definition splices projection lens |
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| Publication Number | Publication Date |
|---|---|
| CN207232499U true CN207232499U (en) | 2018-04-13 |
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|---|---|---|---|
| CN201721244991.3U Expired - Fee Related CN207232499U (en) | 2017-09-27 | 2017-09-27 | L-shaped high definition splices projection lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110737069A (en) * | 2018-07-20 | 2020-01-31 | 上旸光学股份有限公司 | Projection system |
| TWI684787B (en) * | 2018-07-17 | 2020-02-11 | 上暘光學股份有限公司 | Projection system |
-
2017
- 2017-09-27 CN CN201721244991.3U patent/CN207232499U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI684787B (en) * | 2018-07-17 | 2020-02-11 | 上暘光學股份有限公司 | Projection system |
| CN110737069A (en) * | 2018-07-20 | 2020-01-31 | 上旸光学股份有限公司 | Projection system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20210927 |
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| CF01 | Termination of patent right due to non-payment of annual fee |