CN206162044U - On -vehicle projecting lens of anti -ghost - Google Patents
On -vehicle projecting lens of anti -ghost Download PDFInfo
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- CN206162044U CN206162044U CN201621051597.3U CN201621051597U CN206162044U CN 206162044 U CN206162044 U CN 206162044U CN 201621051597 U CN201621051597 U CN 201621051597U CN 206162044 U CN206162044 U CN 206162044U
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- ghost
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- lens
- projection lens
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Abstract
The utility model discloses an on -vehicle projecting lens of anti -ghost, this projecting lens is organized and projection light unit component by anti -ghost lens reflections mirror, two falcate semitransparent mirror that curvature radius is different around anti -ghost lens reflections mirror group contains one for the imaging distance of the virtual image that projected image becomes behind the surface reflection through the falcate semitransparent mirror around is the same, thereby reaches the purpose of elimination ghost image. On -vehicle projecting lens of anti -ghost is arranged in car new line display system, and the effective ghost image problem that must eliminate projected image is favorable to improving projected image's image quality.
Description
Technical field
The vehicle-mounted optical image technology field of the utility model, more particularly to a kind of vehicle-mounted projection lens of anti-ghost.
Background technology
With the continuous development of intelligent safe driving technology, vehicle-mounted head-up-display system is by intelligent and safety driving tips phase
With reference in having come into many superior automobiles.Projected image size and projector distance are how improved, how to improve projected image
Picture quality, have become everybody concern focus.
Traditional front dress head-up-display system is due to bulky, and windshield that must be corresponding is compared with
Good image quality can be obtained, can otherwise answer windshield to mismatch and bring ghost image, distort it is excessive etc. unsatisfactory
Projected image, this drop shadow effect can not only improve the security driven, driver's driving quality can be affected on the contrary.And this
Utility model invention can be good at solving the ghost problems of projected image, improve the image quality of projected image.
Utility model content
Based on this, the utility model proposes a kind of a kind of projection lens for eliminating ghost phenomena in vehicle-mounted head-up-display system
Head, to improve vehicle-mounted new line the quality of projected image is shown.
According to the one side of the application, there is provided a kind of vehicle-mounted projection lens of anti-ghost, the vehicle-mounted projection of the anti-ghost
Camera lens is made up of anti-ghost reflection from lens microscope group and projected light unit, and the anti-ghost reflection from lens microscope group is from human eye to virtual image side
To the concave mirror with negative power is included successively and the falcate semi-transparent semi-reflecting lens with negative power, the projected light
Unit includes successively in-plane scatter face, plane mirror and DLP projection light machines, the vehicle-mounted throwing of the anti-ghost from human eye to virtual image direction
Shadow camera lens meets conditional：
6.7 ＜ f11/f12＜ 6.8
1.016 ＜ R121/R122＜ 1.017
Wherein, f11For the focal length of concave mirror, f12For the focal length of falcate semi-transparent semi-reflecting lens, R121For falcate half
Saturating semi-reflective mirror front surface radius of curvature, R122For surface curvature radius after falcate semi-transparent semi-reflecting lens.
Wherein in one embodiment, the concave mirror is plano-concave lens, and concave surface is coated with the aluminium film of high reflectance, recessed
Facing to scattering surface, plane is towards human eye.
Wherein in one embodiment, the falcate semi-transparent semi-reflecting lens are that former and later two curvature are different concavo-convex thin
Mirror, concave surface is coated with semi-transparent semi-reflecting film, concave surface towards scattering surface, convex surface facing virtual image face.
Wherein in one embodiment, the in-plane scatter face is vertical with bottom, and two sides is all plane；The plane
Speculum is vertical with head-up-display system bottom, and with optical axis angle at 45 °, be coated with high reflectance towards the plane of scattering surface
Aluminium film.
Wherein in one embodiment, the DLP ray machines optical axis direction is parallel with in-plane scatter face, and moves before and after optical axis
Dynamic DLP ray machines adjust the size of projected image on scattering surface.
Wherein in one embodiment, the inclination of the concave mirror, falcate semi-transparent semi-reflecting lens and plane mirror
Angle meets conditional：
7°≤θ11≤9°
8°≤θ12≤10°
θ22=45 °
Wherein, θ11For the inclination angle of concave mirror, it is proposed that θ118 ° are taken, θ12For the inclination angle of falcate semi-transparent semi-reflecting lens,
Suggestion θ129 ° are taken, θ22The inclination angle of plane mirror.
Wherein in one embodiment, the projected light unit is thrown ray machine image by 45 ° of inclined plane mirrors
On in-plane scatter face, the position of ray machine is located at the right front in in-plane scatter face to shadow, and the length of whole projected light unit is less than
40mm。
Wherein in one embodiment, the RMS spot radius in the vehicle-mounted projection lens virtual image image planes of the anti-ghost are less than
150um；Relative distortion in the vehicle-mounted projection lens virtual image image planes of the anti-ghost is less than 0.5%；The vehicle-mounted projection of the anti-ghost
Resolution ratio in camera lens virtual image image planes when contrast is 0.2 is 0.5mm.
Wherein in one embodiment, the vehicle-mounted projection lens of the anti-ghost is used for vehicle-mounted head-up-display system.
The vehicle-mounted projection lens of the utility model design is mainly made up of anti-ghost reflection from lens microscope group and projected light unit,
Wherein anti-ghost reflection from lens microscope group is mainly by the concave mirror with negative power and the falcate with negative power half
Projected image on in-plane scatter face is amplified back reflection to negative power by saturating semi-reflective mirror, the concave mirror of negative power
Falcate semi-transparent semi-reflecting lens on, due to the radius of curvature on two surfaces before and after falcate semi-transparent semi-reflecting lens it is different, by reasonable
Two radius of curvature of designer so that the image Jing after the reflection of concave mirror mirror, then former and later two tables of Jing semi-transparent semi-reflecting lens
The distance of image planes to the human eye after the reflection of face is equal, so as to the ghost image that the gauge strips eliminated due to semi-transparent semi-reflecting looking glass shows
As improve the vehicle-mounted projection quality for coming back and showing.
The utility model is amplified projected image by a spherical reflector and a sphere falcate semi-transparent semi-reflecting lens,
The position being projected at driver's eyes 2.5m, projected image size is 15 cun.The utility model lens and speculum
Face type all adopts sphere, substantially reduces manufacture difficulty of processing and cost；The utility model is using plane mirror to projected light
Road carries out folding the size for greatly reducing head-up-display system, conveniently adapts to the vehicle of different styles.
Description of the drawings
Fig. 1 is the light path schematic diagram of the vehicle-mounted head-up-display system that the utility model is implemented.
Identifier declaration：1-DLP ray machines；2- plane mirrors；3- in-plane scatters face；4- concave mirrors；5- falcates half
Saturating semi-reflective mirror；The vehicle-mounted head-up-display systems of 6-.
Fig. 2 is the vehicle-mounted projection lens meridional section schematic diagram of anti-ghost that the utility model is implemented.
Identifier declaration：11- concave mirrors；12- falcate semi-transparent semi-reflecting lens；21- in-plane scatters face；22- plane reflections
Mirror mirror；23-DLP ray machines.
Fig. 3 is the vehicle-mounted projection lens sagitta of arc schematic cross-section of anti-ghost that the utility model is implemented.
Identifier declaration：11- concave mirrors；12- falcate semi-transparent semi-reflecting lens；21- in-plane scatters face；22- plane reflections
Mirror mirror；23-DLP ray machines.
Fig. 4 is the transmission function figure in the vehicle-mounted projection lens image planes of anti-ghost of the present utility model.
Fig. 5 is the RMS hot spot figures in the vehicle-mounted projection lens image planes of anti-ghost of the present utility model.
Fig. 6 is the distortion figure in the vehicle-mounted projection lens image planes of anti-ghost of the present utility model.
Specific embodiment
Further to illustrate the effect of technological means that the utility model taken and acquirement, below in conjunction with the accompanying drawings and compared with
Good embodiment, to the technical solution of the utility model, carries out clear and complete description.
Vehicle-mounted head-up-display system is illustrated in figure 1, DLP ray machines are projected on plane mirror mirror, plane mirror will
Image is reflexed on in-plane scatter face, and small projected image is formed on in-plane scatter face, small throwing on in-plane scatter face
Shadow image Jing concave mirrors amplify back reflection on falcate semi-transparent semi-reflecting lens, human eye are re-reflected into, due to reflexing to human eye
Just dissipate, human eye sees the exaggerated virtual image through falcate semi-transparent semi-reflecting lens.
As shown in Figures 2 and 3, the vehicle-mounted projecting lens of anti-ghost is by anti-ghost reflection from lens microscope group and projected light unit group
Into, and include successively to projection virtual image face direction from human eye：Concave mirror 11 with negative power, in-plane scatter face 21,
Plane mirror 22, DLP ray machines 23, the falcate semi-transparent semi-reflecting lens 12 with negative power.
In anti-ghost reflection from lens microscope group 1：
Concave mirror 11 with negative power, the speculum is plano-concave lens, and concave surface is coated with the aluminium film of high reflectance,
And concave surface, towards in-plane scatter face, towards human eye direction, the angle of inclination of concave mirror can be in the range of 7 °～9 ° for plane
Adjust, it is proposed that from 8 ° of inclination angle；
Falcate semi-transparent semi-reflecting lens 12 with negative power, the lens are concave-convex lens, and concave surface is coated with semi-transparent semi-reflecting film,
Ensure a scene reflection and a part of light-transmissive, and concave surface is towards in-plane scatter face, convex surface facing virtual image direction, falcate
Semi-transparent semi-reflecting lens can be adjusted in the range of 8 °～10 °, it is proposed that from 9 ° of inclination angle.
In projected light unit 2：
In-plane scatter face 21, mainly as relaying plane, projection light machine is launched the image for coming and is shown, and as new
Image source, allow anti-ghost reflection from lens microscope group to zoom into picture, in-plane scatter face is vertical with head-up-display system bottom.
Plane mirror 22, mainly transfer projecting light path, shortens the length of projected light unit, and plane mirror shows with coming back
Show that system bottom is vertical, and ensure 45 ° of angles with optical axis, in the plane towards ray machine and in-plane scatter face high reflectance is coated with
Aluminium film.
DLP ray machines 23, projection-display image, DLP ray machines base plane is parallel with head-up-display system base plane.
The vehicle-mounted projection lens of anti-ghost meets following condition：
6.7 ＜ f11/f12＜ 6.8
1.016 ＜ R121/R122＜ 1.017
7°≤θ11≤9°
8°≤θ12≤10°
θ22=45 °
Wherein, f11For the focal length of concave mirror, f12For the focal length of falcate semi-transparent semi-reflecting lens, R121It is semi-transparent for falcate
Semi-reflective mirror front surface radius of curvature, R122For surface curvature radius after falcate semi-transparent semi-reflecting lens.
θ11For the inclination angle of concave mirror, it is proposed that θ118 ° are taken, θ12For the inclination angle of falcate semi-transparent semi-reflecting lens, it is proposed that
θ129 ° are taken, θ22The inclination angle of plane mirror.
The each optical element of the vehicle-mounted projection lens of anti-ghost meets the condition of table 1.In table R be correspondence surface radius of curvature, T
Be correspondence surface to distance on the axle of latter surface, nd is refractive index of the correspondence lens to d light, vd be light correspondence camera lens Ah
Shellfish number, is the inclination angle on correspondence surface.
Table 1：
| Surface | Face type | R(mm) | T(mm) | nd | vd | θ(°) | Explanation |
| 1 | Plane | ∞ | -144.121 | - | - | - | In-plane scatter face |
| 2 | Sphere | 4657.421 | 163.35 | - | - | 8 | Concave mirror mirror |
| 3 | Sphere | -675.816 | 5 | 1.568 | 64.2 | 9 | Semi-transparent semi-reflecting lens concave surface |
| 4 | Sphere | -686.9 | -744.618 | - | - | - | Semi-transparent semi-reflecting lens convex surface |
| 5 | Plane | ∞ | 2499.006 | - | - | - | Human eye |
| 6 | Plane | ∞ | - | - | - | - | Image planes |
Fig. 4, Fig. 5, Fig. 6 are respectively transmission function, RMS hot spots in the vehicle-mounted projection lens image planes of the utility model anti-ghost
Radius and distortion curve.In general, in the virtual image image planes of the vehicle-mounted projection lens of the utility model anti-ghost contrast be 0.2
When resolution ratio be 0.5mm；RMS spot radius in virtual image image planes are less than 150um；Relative distortion in virtual image image planes is less than
0.5%.As can be seen that lens design reasonable balance aberration, lens design meets the limiting resolution of human eye, and eliminate
Ghost phenomena, substantially increases the image quality of projection lens.
The utility model is practiced in vehicle-mounted head-up-display system, not only substantially reduces vehicle-mounted head-up-display system
Production and processing difficulty and cost, and ghost phenomena is eliminated, greatly improve the quality of the projection virtual image.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that common for this area
For technical staff, without departing from the concept of the premise utility, some deformations and improvement can also be made, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be defined by claims.
Claims (8)
1. the vehicle-mounted projection lens of a kind of anti-ghost, it is characterised in that：The vehicle-mounted projection lens of the anti-ghost is anti-by anti-ghost lens
Microscope group and projected light unit composition are penetrated, the anti-ghost reflection from lens microscope group includes successively thering is negative light from human eye to virtual image direction
The concave mirror of focal power and the falcate semi-transparent semi-reflecting lens with negative power, the projected light unit is from human eye to virtual image side
To in-plane scatter face, plane mirror and DLP projection light machines is included successively, the vehicle-mounted projection lens of the anti-ghost meets conditional：
6.7 ＜ f11/f12＜ 6.8
1.016 ＜ R121/R122＜ 1.017
Wherein, f11For the focal length of concave mirror, f12For the focal length of falcate semi-transparent semi-reflecting lens, R121It is semi-transparent semi-reflecting for falcate
Mirror front surface radius of curvature, R122For surface curvature radius after falcate semi-transparent semi-reflecting lens.
2. the vehicle-mounted projection lens of anti-ghost according to claim 1, it is characterised in that：The concave mirror is that plano-concave is saturating
Mirror, concave surface is coated with the aluminium film of high reflectance, and, towards scattering surface, plane is towards human eye for concave surface.
3. the vehicle-mounted projection lens of anti-ghost according to claim 1, it is characterised in that：The falcate semi-transparent semi-reflecting lens are
The different thin concavo convex of former and later two curvature, concave surface is coated with semi-transparent semi-reflecting film, concave surface towards scattering surface, convex surface facing the virtual image
Face.
4. the vehicle-mounted projection lens of anti-ghost according to claim 1, it is characterised in that：Hang down with bottom in the in-plane scatter face
Directly, and two sides is all plane；The plane mirror is vertical with head-up-display system bottom, and with optical axis angle at 45 °,
High reflectance aluminium film is coated with towards the plane of scattering surface.
5. the vehicle-mounted projection lens of anti-ghost according to claim 1, it is characterised in that：The DLP ray machines optical axis direction with
In-plane scatter face is parallel, and adjusts the size of projected image on scattering surface along the movable DLP ray machines of optical axis.
6. the vehicle-mounted projection lens of anti-ghost according to claim 1, it is characterised in that：The concave mirror, falcate
The angle of inclination of semi-transparent semi-reflecting lens and plane mirror meets conditional：
7°≤θ11≤9°
8°≤θ12≤10°
θ22=45 °
Wherein, θ11For the inclination angle of concave mirror, θ12For the inclination angle of falcate semi-transparent semi-reflecting lens, θ22Plane mirror
Inclination angle.
7. the vehicle-mounted projection lens of anti-ghost according to claim 1, it is characterised in that：The vehicle-mounted projection lens of the anti-ghost
RMS spot radius in head virtual image image planes are less than 150um；Relative distortion in the vehicle-mounted projection lens virtual image image planes of the anti-ghost
Less than 0.5%；Resolution ratio in the vehicle-mounted projection lens virtual image image planes of the anti-ghost when contrast is 0.2 is 0.5mm.
8. the vehicle-mounted projection lens of anti-ghost according to any one of claim 1 to 7, it is characterised in that：The anti-ghost car
Carrying projection lens is used for vehicle-mounted head-up-display system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621051597.3U CN206162044U (en) | 2016-08-16 | 2016-08-16 | On -vehicle projecting lens of anti -ghost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621051597.3U CN206162044U (en) | 2016-08-16 | 2016-08-16 | On -vehicle projecting lens of anti -ghost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206162044U true CN206162044U (en) | 2017-05-10 |
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ID=58650677
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621051597.3U Expired - Fee Related CN206162044U (en) | 2016-08-16 | 2016-08-16 | On -vehicle projecting lens of anti -ghost |
Country Status (1)
| Country | Link |
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| CN (1) | CN206162044U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873349A (en) * | 2018-07-16 | 2018-11-23 | 惠州市华阳多媒体电子有限公司 | A kind of CHUD light path system for eliminating ghost image using wedge-shaped semi-reflective mirror |
| CN109270600A (en) * | 2018-11-28 | 2019-01-25 | 福建富兰光学有限公司 | A kind of multilayer materials semi-permeable and semi-reflecting mirror and vehicle-mounted head-up display system |
-
2016
- 2016-08-16 CN CN201621051597.3U patent/CN206162044U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873349A (en) * | 2018-07-16 | 2018-11-23 | 惠州市华阳多媒体电子有限公司 | A kind of CHUD light path system for eliminating ghost image using wedge-shaped semi-reflective mirror |
| CN109270600A (en) * | 2018-11-28 | 2019-01-25 | 福建富兰光学有限公司 | A kind of multilayer materials semi-permeable and semi-reflecting mirror and vehicle-mounted head-up display system |
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| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Ding Zhao (Shanghai) Electronic Technology Co., Ltd. Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Ding Zhao (Shanghai) Electronic Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20180816 |
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| CF01 | Termination of patent right due to non-payment of annual fee |