CN109254387A - projection lens and image output device - Google Patents
projection lens and image output device Download PDFInfo
- Publication number
- CN109254387A CN109254387A CN201811485455.1A CN201811485455A CN109254387A CN 109254387 A CN109254387 A CN 109254387A CN 201811485455 A CN201811485455 A CN 201811485455A CN 109254387 A CN109254387 A CN 109254387A
- Authority
- CN
- China
- Prior art keywords
- lens
- projection
- image
- projection lens
- convex
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/22—Telecentric objectives or lens systems
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The present invention provides a kind of projection lens and image output device, is related to projection lens field.The projection lens includes: the first lens, and first lens are plano-convex lens, has positive diopter；Second lens have negative diopter；The third lens have negative diopter；4th lens have positive diopter；5th lens have positive diopter；6th lens, the 6th lens are plano-convex lens, have positive diopter；Wherein, first lens are close to object plane, and the 6th lens are close to image planes；First lens, second lens, the third lens, the 4th lens, the 5th lens, the 6th lens are arranged along optical axis according to from the first lens to the sequencing of the 6th lens；It wherein, further include prism, the prism is set between the 6th lens and image planes.Realize it is easy to process, it is at low cost, and it is loose to assemble tolerance, while Lens are reduced compared to the Lens of other telecentric structures.
Description
Technical field
The present invention relates to projection lens technical fields, in particular to a kind of projection lens and image output device.
Background technique
Projector is more and more extensive used in teaching, life, the work, and the projection quality of projector is to judge projector
The key factor of superiority and inferiority, projection lens are the last parts of projector optical path, and the quality of projection lens decides the matter of projection
Amount, improves the quality of projection lens, can directly promote the projection quality of projector.
In the prior art, projection lens include the first lens group with positive refractive power and it is with positive refractive power second thoroughly
Lens group, the projection lens of this structure includes muti-piece aspherical mirror, complex process, it is difficult to be processed, to tolerance when assembly
Strictly, production cost and technique require high.
Therefore, it is necessary to one kind at low cost, easy manufacture, easy-to-assemble projection lens.
Summary of the invention
It is an object of the present invention in view of the deficiency of the prior art, a kind of projection lens and image output are provided
Equipment, to solve the problems, such as that lens wearer complex process, production cost are high, assembling is difficult.
To achieve the above object, technical solution used in the embodiment of the present invention is as follows:
In a first aspect, the embodiment of the invention provides a kind of projection lens, comprising: the first lens, the first lens are plano-convex
Lens have positive diopter.Second lens have negative diopter.The third lens have negative diopter.4th lens have just
Diopter.5th lens have positive diopter.6th lens, the 6th lens are plano-convex lens, have positive diopter.Wherein,
One lens are close to object plane, and the 6th lens are close to image planes.First lens, the second lens, the third lens, the 4th lens, the 5th lens,
6th lens are arranged along optical axis according to from the first lens to the sequencing of the 6th lens.It wherein, further include prism, prism
Between the 6th lens and image planes.
Further, the object side surface of the first lens and the 6th lens be convex surface and be spherical surface, image interface be radius without
Poor big spherical surface.
Further, the second lens be meniscus lens, the object side surface of the second lens is convex surface, image interface be concave surface and
It is spherical surface.
Further, the third lens are meniscus lens, the object side surface of the third lens is concave surface, image interface be convex surface and
It is spherical surface.
Further, the 4th lens be meniscus lens, the object side surface of the 4th lens is concave surface, image interface be convex surface and
It is spherical surface.The object side surface of 4th lens is bonded with the image interface of the third lens.
Further, the 5th lens be meniscus lens, the object side surface of the 5th lens is concave surface, image interface be convex surface and
It is spherical surface.
Further, also meet: 0.35 < BFL/TTL < 0.46, wherein TTL is camera lens overall length, indicates the first lens object space
To the distance of image planes, BFL is rear lens focus away from the distance of the 6th lens image interface of expression to image planes on surface.
It optionally, further include diaphragm, diaphragm is set between the first lens, the second lens, for controlling passing through for light
Amount.
It optionally, further include diaphragm, diaphragm is set between the second lens, the third lens, for controlling passing through for light
Amount.
Second aspect, the embodiment of the invention also provides a kind of image output device, the projection lens including first aspect.
The beneficial effects of the present invention are: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th
The telecentric structure that lens are constituted, so that camera lens illuminance of image plane is uniform, good contrast, capacity usage ratio are high, wherein the first lens,
6th lens are plano-convex lens, make projection lens using plano-convex lens, easy to process, at low cost, and assembling tolerance is loose, together
When Lens reduced compared to the Lens of other telecentric structures.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the projection lens structural schematic diagram that one embodiment of the invention provides；
Fig. 2 is the projection lens structural schematic diagram that one embodiment of the invention scene one provides；
Fig. 3 is the projection lens curvature of field and distortion aberration figure that one embodiment of the invention scene one provides；
Fig. 4 is the projection lens modulation transfer function (Modulation that one embodiment of the invention scene one provides
Transfer Function, MTF) curve graph；
Fig. 5 is the projection lens chromatic longitudiinal aberration figure that one embodiment of the invention scene one provides；
Fig. 6 is the projection lens structural schematic diagram that one embodiment of the invention scene two provides；
Fig. 7 is the projection lens curvature of field and distortion aberration figure that one embodiment of the invention scene two provides；
Fig. 8 is the projection lens MTF curve figure that one embodiment of the invention scene two provides；
Fig. 9 is the projection lens chromatic longitudiinal aberration figure that one embodiment of the invention scene two provides；
Figure 10 is a kind of structural schematic diagram of image output device provided in an embodiment of the present invention.
Icon: the first lens of 1-；The second lens of 2-；3- the third lens；The 4th lens of 4-；The 5th lens of 5-；6- the 6th is saturating
Mirror；7- prism；8- protects eyeglass；9- digital micromirror elements (Digital Micromirror Device, DMD)；10- diaphragm.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " first ", " second ", " third " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance, meanwhile, image space and object space are conjugate relation, in the present invention, in order to
Statement is clear, and using the side where the first lens as object space, using the side where the 6th lens as image space, but not limited to this.
Fig. 1 is the projection lens structural schematic diagram that one embodiment of the invention provides.
As shown in Figure 1, the projection lens includes:
First lens 1, the first lens 1 are plano-convex lens, have positive diopter.Second lens 2 have negative diopter.The
Three lens 3 have negative diopter.4th lens 4 have positive diopter.5th lens 5 have positive diopter.6th lens 6,
6th lens 6 are plano-convex lens, have positive diopter.Wherein, the first lens 1 are close to object plane, and the 6th lens 6 are close to image planes S15.
First lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6 are along optical axis, according to from
The sequencing of one lens 1 to the 6th lens 6 is arranged, telecentric structure is formed, wherein further includes prism 7, prism 7 is set to the 6th
Between lens 6 and image planes S15.
Wherein, above-mentioned prism 7 is Amici prism, for optical path of transferring, for example, shining in use, existing in projection lens
Illumination path and imaging optical path are attached by Amici prism, constitute complete projecting light path by Mingguang City road and imaging optical path.
It should be noted that telecentric structure refers to light after camera lens, chief ray and optical axis are close to parallel, in the present embodiment
In, light after camera lens the angle of chief ray and optical axis less than 1 °, use telecentric structure that can make, illuminance of image plane uniformly,
Good contrast, capacity usage ratio are high.
Optionally, said lens are also possible to lens group, for example, the first lens 1 can be at least two lens composition
Lens group, the lens group is identical as the optical property of the first lens 1, and the lens numbers and type in lens group do not limit
System, the optical property being subject to described in capable of reaching.
Projection lens provided in an embodiment of the present invention, including the first lens, the second lens, the third lens, the 4th lens,
The telecentric structure that five lens, the 6th lens are constituted, so that camera lens illuminance of image plane is uniform, good contrast, capacity usage ratio are high,
In, the first lens, the 6th lens are plano-convex lens, make projection lens using plano-convex lens, it is easy to process, it is at low cost, and group
Dress tolerance is loose, while Lens are reduced compared to the Lens of other telecentric structures.
In order to better illustrate the structure and its mirror surface parameter of projection lens shown in Fig. 1, it is given below a kind of possible
Implementation is illustrated.
It should be noted that f used herein indicates focal length, unit is millimeter；R indicates the surface curvature half of optical lens
Diameter, unit are millimeter；D is distance on corresponding optical surface to the axis of the latter optical surface, and unit is millimeter；Nd is corresponding light
Lens are learned to the refractive index of d light (wavelength of light is 587nm), Vd is the Abbe number of the corresponding optical lens of d light.
The object side surface S1 of first lens 1 is convex surface and is spherical surface, the spherical surface that image interface S2 is radius infinity.
The object side surface S10 of 6th lens 6 is convex surface and is spherical surface, the spherical surface that image interface S11 is radius infinity.
In the present embodiment, the material of the first lens 1 is glass, and focal length meets 22 < f < 46；Refractive index meets: 1.76 < Nd
<1.79；Abbe number meets: 25 < Vd < 42.
Optionally, the material of the first lens 1 can also meet the material of optical property for plastics, quartz etc..
In the present embodiment, the material of the 6th lens 6 is glass, and focal length meets: 15 < f < 25, refractive index meet: 1.62 <
Nd < 1.74, Abbe number meet: 50 < Vd < 65.
Optionally, the material of the 6th lens 6 can also meet the material of optical property for plastics, quartz etc..
Wherein, the first lens 1 and the 6th lens 6 are plano-convex lens, and plano-convex lens are easy to process, at low cost, are easily assembled, energy
Enough effectively reduce the difficulty of processing and cost of projection lens.
Second lens 2 are meniscus lens, and the object side surface S3 of the second lens 2 is convex surface, image interface S4 is concave surface and equal
For spherical surface.
In the present embodiment, the material of the second lens 2 is glass, and focal length meets: -15 < f < -20, refractive index meet: 1.58
< Nd < 1.61, Abbe number meet: 42 < Vd < 50.
Optionally, the material of the second lens 2 can also meet the material of optical property for plastics, quartz etc..
The third lens 3 are meniscus lens, and the object side surface S5 of the third lens 3 is convex surface, image interface S6 is concave surface and equal
For spherical surface.
In the present embodiment, the material of the third lens 3 is glass, and focal length meets: -8 < f < -5, refractive index meet: 1.80 <
Nd < 1.85, Abbe number meet: 22 < Vd < 32.
Optionally, the material of the third lens 3 can also meet the material of optical property for plastics, quartz etc..
4th lens 4 are meniscus lens, and the object side surface S6 of the 4th lens 4 is concave surface, image interface S7 is convex surface and equal
For spherical surface.The object side surface S6 of 4th lens 4 is bonded with the image interface S6 of the third lens 3.
In the present embodiment, the material of the 4th lens 4 is glass, and focal length meets: 8 < f < 10, refractive index meet: 1.76 < Nd
< 1.81, Abbe number meets: 45 < Vd < 50.
Optionally, the material of the 4th lens 4 can also meet the material of optical property for plastics, quartz etc..
In the present embodiment, the third lens 3 and the glued connection of the 4th lens 4.
5th lens 5 are meniscus lens, and the object side surface S8 of the 5th lens 5 is concave surface, image interface S9 is convex surface and equal
For spherical surface.
In the present embodiment, the material of the 5th lens 5 is glass, and focal length meets: 17 < f < 24, refractive index meet: 1.62 <
Nd < 1.74, Abbe number meet: 50 < Vd < 65.
Optionally, the material of the 5th lens 5 can also meet the material of optical property for plastics, quartz etc..
In the present embodiment, the first lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens the 5, the 6th are saturating
Mirror 6 is glass material, can effectively reduce heat phenomenon out of focus, image is more stable when making to project.
In the present embodiment, the projection lens provided also meets: 0.35 < BFL/TTL < 0.46, wherein and TTL is camera lens overall length,
1 object side surface of the first lens is indicated to the distance of image planes S15, BFL is rear lens focus away from expression 6 image interface of the 6th lens arrives
The distance of image planes S15.
In the present embodiment, it in order to there is enough spaces to place prism 7, needs to rear lens focus away from doing certain limitation,
BFL/TTL is limited between 0.35-0.46, ensure that after placed prism 7 between the 6th lens 6 and image planes S15, moreover it is possible to
It enough leaves enough spaces to design for structure, and processing veiling glare.
Further, which further includes protection eyeglass 8, and protection eyeglass 8 is set between prism 7 and image planes S15, uses
In the image-forming component that protection image planes S15 is placed.
Image-forming component packet DMD9, protection eyeglass 8 and DMD9 are integrally formed.
Optionally, when the distance between object plane and projection lens change, the first lens 1, the second lens 2, third are adjusted
The distance between lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6 and image planes S15 obtain clearly image.
In the present embodiment, it when being radiated on display medium due to the image that camera lens is projected out, is put down locating for display medium
Face and object plane cause the image of projection fuzzy situation occur not in same plane, at this time, it may be necessary to focus operations are carried out, for example,
By adjusting the first lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6 and image planes S15
The distance between, to change the position of plane where object plane, to obtain clearly image, wherein adjusting the first lens 1, the
When the distance between two lens 2, the third lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6 and image planes S15, the first lens
1, the distance between the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6 remain unchanged.
Optionally, focus operations can also by change the first lens 1, the second lens 2, the third lens 3, the 4th lens 4,
The distance between 5th lens 5, the 6th lens 6 realize how focus operations are specifically realized, herein with no restrictions.
There are a variety of possible implementations for projection lens provided by the invention, by taking scene one and scene two as an example, to this
Projection lens is illustrated.Scene one and structure, parameter in scene two are only the implementation citing of projection lens, and are not
Limitation must be arranged such.
Scene one
Fig. 2 is the projection lens structural schematic diagram that one embodiment of the invention scene one provides.
As shown in Fig. 2, further including diaphragm 10, diaphragm 10 is set between the first lens 1, the second lens 2, for controlling light
The throughput of line, while the overall volume of projection lens can be compressed.
In scene one, the first lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6,
Prism 7, protection eyeglass 8, DMD9, the parameter of diaphragm 10 are as shown in the table:
The focal length f=11.17mm of the projection lens, overall length TTL=30.14mm, aperture FNo.=1.7, wherein aperture is
The inverse of relative aperture.It should be noted that relative aperture is the ratio of Entry pupil diameters and focal length, Entry pupil diameters are that diaphragm 10 is right
The diameter of optical system imaging before it.
Fig. 3 is the projection lens curvature of field and distortion aberration figure that one embodiment of the invention scene one provides.
As shown in figure 3, the projection lens curvature of field that the present embodiment scene one provides is less than 0.05mm, maximum distortion 0.8%.
Fig. 4 is the projection lens MTF curve figure that one embodiment of the invention scene one provides.
As shown in figure 4, the full filed for the projection lens that the present embodiment scene one provides is under 93lp/mm spatial frequency
MTF > 48%.
Fig. 5 is the projection lens chromatic longitudiinal aberration figure that one embodiment of the invention scene one provides.
As shown in figure 5, the imaging system chromatic longitudiinal aberration for the projection lens that the present embodiment scene one provides is up to 2.4 μm.
By above-mentioned parameter, it is found that the projection lens that scene one provides distorts, small, MTF is excellent in, and chromatic longitudiinal aberration is small, aperture
Reach F1.7, there is outstanding image quality.
Scene two
Fig. 6 is the projection lens structural schematic diagram that one embodiment of the invention scene two provides.
As shown in fig. 6, further including diaphragm 10, diaphragm 10 is set between the second lens 2, the third lens 3, for controlling light
The throughput of line.
In scene two, diaphragm 10 is set between the second lens 2 and the third lens 3, so that camera lens overall structure phase
To symmetrical, coma and distortion can be effectively balanced, the image quality of camera lens is improved.
In scene two, the first lens 1, the second lens 2, the third lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6,
Prism 7, protection eyeglass 8, DMD9, the parameter of diaphragm 10 are as shown in the table:
The focal length f=10.33mm of the projection lens, overall length TTL=39.93mm, aperture FNo.=1.7, wherein aperture is
The inverse of relative aperture.It should be noted that relative aperture is the ratio of Entry pupil diameters and focal length, Entry pupil diameters are that diaphragm 10 is right
The diameter of optical system imaging before it.
Fig. 7 is the projection lens curvature of field and distortion aberration figure that one embodiment of the invention scene two provides.
As shown in fig. 7, the projection lens curvature of field that the present embodiment scene two provides is less than 0.05mm, maximum distortion 0.8%.
Fig. 8 is the projection lens MTF curve figure that one embodiment of the invention scene two provides.
As shown in figure 8, the full filed for the projection lens that the present embodiment scene two provides is under 93lp/mm spatial frequency
MTF > 50%.
Fig. 9 is the projection lens chromatic longitudiinal aberration figure that one embodiment of the invention scene two provides.
As shown in figure 9, the imaging system chromatic longitudiinal aberration is up to 2.8 μm.
By above-mentioned parameter, it is found that the projection lens that scene two provides distorts, small, MTF is excellent in, and chromatic longitudiinal aberration is small, aperture
Reach F1.7, there is outstanding image quality.
Further, for projection lens provided by the above embodiment, image output device, example can be applied to
Such as, table viewer, write projector or other have the end product of projecting function, a kind of possible realization side is given below
Formula is illustrated image output device.
Figure 10 is a kind of structural schematic diagram of image output device provided in an embodiment of the present invention.
As shown in Figure 10, which includes: projection lens 901, light source 903, image-forming component 902.
Wherein, light source is for being radiated at image-forming component, and is projected the image on image-forming component by projection lens
It goes.
Optionally, which may be also equipped with: processor, memory, radio circuit input/output group relevant with other
Part not limits herein for realizing the corresponding function of the equipment.
The image output device has used above-mentioned projection lens, therefore beneficial effect is similar, and details are not described herein.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of projection lens characterized by comprising
First lens, first lens are plano-convex lens, have positive diopter；
Second lens have negative diopter；
The third lens have negative diopter；
4th lens have positive diopter；
5th lens have positive diopter；
6th lens, the 6th lens are plano-convex lens, have positive diopter；
Wherein, first lens are close to object plane, and the 6th lens are close to image planes；
First lens, second lens, the third lens, the 4th lens, the 5th lens, the described 6th
Lens are arranged along optical axis according to from the first lens to the sequencing of the 6th lens；
It wherein, further include prism, the prism is set between the 6th lens and image planes.
2. projection lens as described in claim 1, which is characterized in that the object space table of first lens and the 6th lens
The spherical surface that face is convex surface and is spherical surface, image interface is radius infinity.
3. projection lens as described in claim 1, which is characterized in that second lens are meniscus lens；
The object side surface of second lens is convex surface, image interface is concave surface and is spherical surface.
4. projection lens as described in claim 1, which is characterized in that the third lens are meniscus lens；
The object side surface of the third lens is concave surface, image interface is convex surface and is spherical surface.
5. projection lens as described in claim 1, which is characterized in that the 4th lens are meniscus lens；
The object side surface of 4th lens is concave surface, image interface is convex surface and is spherical surface；
The object side surface of 4th lens is bonded with the image interface of the third lens.
6. projection lens as described in claim 1, which is characterized in that the 5th lens are meniscus lens；
The object side surface of 5th lens is concave surface, image interface is convex surface and is spherical surface.
7. projection lens as claimed in any one of claims 1 to 6, which is characterized in that also meet: 0.35 < BFL/TTL < 0.46,
Wherein, the TTL is camera lens overall length, indicates the first lens object side surface to the distance of the image planes, the BFL is camera lens
Back focal length, the distance of expression the 6th lens image interface to the image planes.
8. projection lens as claimed in claim 7, which is characterized in that further include diaphragm, the diaphragm is set to described first
Between lens, second lens, for controlling the throughput of light.
9. projection lens as claimed in claim 7, which is characterized in that further include diaphragm, the diaphragm is set to described second
Between lens, the third lens, for controlling the throughput of light.
10. a kind of image output device, which is characterized in that including such as described in any item projection lens of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811485455.1A CN109254387B (en) | 2018-12-04 | 2018-12-04 | Projection lens and image output apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811485455.1A CN109254387B (en) | 2018-12-04 | 2018-12-04 | Projection lens and image output apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109254387A true CN109254387A (en) | 2019-01-22 |
| CN109254387B CN109254387B (en) | 2023-04-25 |
Family
ID=65042680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811485455.1A Active CN109254387B (en) | 2018-12-04 | 2018-12-04 | Projection lens and image output apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109254387B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521552A (en) * | 2018-12-27 | 2019-03-26 | 博众精工科技股份有限公司 | Imaging system, imaging device and Systems for optical inspection for the detection of cylinder outer wall |
| CN117031690A (en) * | 2023-08-02 | 2023-11-10 | 江苏泽景汽车电子股份有限公司 | Projection lens, projection system and head-up display device |
| CN117270306A (en) * | 2023-08-28 | 2023-12-22 | 深圳爱图仕创新科技股份有限公司 | Projection illumination lens and illumination equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425370A (en) * | 2014-09-11 | 2016-03-23 | 富士胶片株式会社 | Optical System And Optical Apparatus |
-
2018
- 2018-12-04 CN CN201811485455.1A patent/CN109254387B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425370A (en) * | 2014-09-11 | 2016-03-23 | 富士胶片株式会社 | Optical System And Optical Apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521552A (en) * | 2018-12-27 | 2019-03-26 | 博众精工科技股份有限公司 | Imaging system, imaging device and Systems for optical inspection for the detection of cylinder outer wall |
| CN117031690A (en) * | 2023-08-02 | 2023-11-10 | 江苏泽景汽车电子股份有限公司 | Projection lens, projection system and head-up display device |
| CN117031690B (en) * | 2023-08-02 | 2024-04-23 | 江苏泽景汽车电子股份有限公司 | Projection lens, projection system and head-up display device |
| CN117270306A (en) * | 2023-08-28 | 2023-12-22 | 深圳爱图仕创新科技股份有限公司 | Projection illumination lens and illumination equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109254387B (en) | 2023-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109270668B (en) | Telecentric projection lens and image output equipment | |
| CN102455483B (en) | Projection lens | |
| CN101726833B (en) | Projection lens | |
| CN112882211B (en) | Large-aperture four-piece optical lens | |
| CN110515188A (en) | A kind of projection lens | |
| CN109254387A (en) | projection lens and image output device | |
| CN210323733U (en) | Projection lens and projection device | |
| CN206074892U (en) | Focus lens in a kind of long-focus | |
| CN108802963A (en) | fixed focus lens | |
| CN103149668A (en) | Zoom projection lens | |
| CN110068910A (en) | Lens group | |
| CN108303788A (en) | A kind of ultrashort out-of-focus projection's optical system of refraction type | |
| CN110879457B (en) | Projection optical system and projection apparatus | |
| CN109407288A (en) | A kind of refraction-reflection type ultra-short focus projection lens system | |
| CN201926807U (en) | Fixed focus-type projector lens | |
| CN102455489A (en) | Projection lens | |
| CN113359277B (en) | Optical system and projection apparatus | |
| CN109298584B (en) | Projection lens and projector | |
| CN102566015A (en) | Lens of fixed focus type projector | |
| TW201541182A (en) | Projection device | |
| CN114942561B (en) | Optical projection system and electronic equipment | |
| CN110187470A (en) | Projection lens, projection optical system and projection device | |
| CN113391432B (en) | Large-aperture three-piece optical lens | |
| CN216248732U (en) | Optical system and projection apparatus | |
| CN213633972U (en) | Fixed focus lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220107 Address after: 609, 6th floor, building 1, Saiba science and technology building, no.6, Langshan 2nd Road, songpingshan community, Xili street, Nanshan District, Shenzhen, Guangdong 518000 Applicant after: Shenzhen Xiaoxiang light display Co.,Ltd. Address before: 518000 511 Saiba electronics, No.16, Beier Road, Science Park, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Applicant before: ELEPN PROJECTION DISPLAY TECHNOLOGY CO.,LTD. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |