CN109946910A - Vehicle-mounted optical projection system - Google Patents
Vehicle-mounted optical projection system Download PDFInfo
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- CN109946910A CN109946910A CN201711394976.1A CN201711394976A CN109946910A CN 109946910 A CN109946910 A CN 109946910A CN 201711394976 A CN201711394976 A CN 201711394976A CN 109946910 A CN109946910 A CN 109946910A
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Abstract
The application discloses a kind of vehicle-mounted optical projection system, which may include lighting module, dynamic image display device and projection module, in which: lighting module issues the light beam for illumination；Dynamic image display device can be loaded with information to be shown, and light beam is by that can carry information to be shown after dynamic image display device；And projection module can receive the light beam for carrying information to be shown, and by information projection to be shown on face to be shown.According to the vehicle-mounted optical projection system of the application, structure tends to minimize, and can project dynamic image, good imaging quality, solution image height.
Description
Technical field
This application involves the technical fields such as mechanical engineering, vehicle projection lighting, are based on micro- projection more particularly, to one kind
Vehicle-mounted optical projection system.
Background technique
Vehicle-mounted optical projection system with automobile industry development, increasingly by the concern of industry.For example, automobile industry is closely several
A kind of year emerging vehicle-mounted optical projection system has the function of light and is projected out the functions such as the vehicle number or brand pattern,
It on the one hand can show the information such as automobile brand by information projections such as automobile marks on ground, it on the other hand can be at night
Between play the role of illumination and remind car door front and back Pedestrians and vehicles take care.
But for common vehicle-mounted optical projection system, projected based on film, and since its project content is believed
Breath depends on the pattern of film, and film can only carry fixed image, so that if it is intended to change projected image pattern, it must
Film must be replaced, and can not show dynamic image, therefore limits the function of vehicle-mounted optical projection system.
Vehicle-mounted optical projection system in the prior art usually has structure as shown in Figure 1.As shown in fig. 1, the prior art
In vehicle-mounted optical projection system include high-brightness LED light source 1, collimator 2, film 3 and amplifier 4, they are sequentially arranged height
In the optical path for the light beam that brightness LED light sources 1 are issued.Light beam is uniformly incident on film 3 by collimator, and then by putting
Big device 4 projects the pattern on film 3 on the ground.
But vehicle-mounted optical projection system presence in the prior art is difficult to change irradiation image, cannot show dynamic image
Disadvantage, the function of limiting vehicle-mounted optical projection system are realized.
Summary of the invention
The application provides a kind of vehicle-mounted optical projection system based on micro- projection to solve or part solves to exist in the prior art
Some problems.
On the one hand the application provides a kind of vehicle-mounted optical projection system, it may include lighting module, dynamic image display device and
Projection module, in which: lighting module issues the light beam for illumination；Dynamic image display device can be loaded with letter to be shown
Breath, light beam is by that can carry information to be shown after dynamic image display device；And projection module can receive and carry
The light beam of information to be shown, and by information projection to be shown on face to be shown.
Wherein, lighting module is high-brightness LED light source.
In one embodiment, light adjustment mechanism, light tune may also include according to the vehicle-mounted optical projection system of the application
Complete machine structure is arranged after lighting module along the optical path of light beam, carries out shaping to incident light beam and exports uniform light beam,
And by uniform light beam directive dynamic image display device.
Wherein, light adjustment mechanism may include collimation lens and relay lens, and collimation lens carries out incident light beam quasi-
Direct join output；And relay lens carries out shaping, homogenization to the light beam exported from collimation lens and exports.
Wherein, dynamic image display device is dmd chip.
Wherein, projection module may include any combination of aspherical lens, spherical mirror and free-form surface lens to improve into
Image quality amount, reflects through dynamic image display device and the light beam for carrying information to be shown is directly transmitted to projection module.
Alternatively, vehicle-mounted optical projection system may also include oneself being arranged between dynamic image display device and projection module
By curved reflector, the light beam injected from dynamic image display device is reflexed to projection module by free form surface transmitting mirror.
Wherein, projection module may include any combination of spherical mirror and aspherical lens to improve image quality.
In another embodiment, light adjustment mechanism is fly's-eye lens, and fly's-eye lens makes the light issued from lighting module
Beam uniform irradiation is on dynamic image display device.
Wherein, dynamic image display device is TFT display.
Wherein, projection module may include aspherical lens and spherical mirror any combination to improve image quality, from dynamic
The light beam of the carrying of image display device transmission information to be shown is directly transmitted to projection module.
On the other hand the application provides a kind of method using vehicle-mounted projection system projects information, comprising:
1) light beam for illumination is issued using lighting module；
2) after light beam is radiated at dynamic image display device, light beam carries information to be shown, while Dynamic Graph
As display device will carry the beam Propagation of information to be shown to projection module；And
3) carry information to be shown light beam pass through projection module, projection module by information projection to be shown to
On display surface.
Wherein, may also include according to the present processes makes the light beam issued from lighting module be incident to light adjustment machine
Structure, so that homogenizer is radiated on dynamic image display device.
At least one of according to the vehicle-mounted optical projection system of the application, have the advantages that:
1, the vehicle-mounted optical projection system is based on micro- shadow casting technique, and image information derives from dynamic image display device, can be with
Change display image at any time, and dynamic image can be projected.
2, the vehicle-mounted optical projection system is based on micro- shadow casting technique, and image information derives from dynamic image display device, different
It is projected in common film, is not in aging after the irradiation of long-term light source, the problems such as the imaging is not clear, service life is shorter.
3, the vehicle-mounted optical projection system, can by using the combination of aspherical lens and spherical mirror and free-form surface mirror
With effective managing and control system volume, overall structure is made to tend to minimize.
4, the vehicle-mounted optical projection system by using aspherical lens and spherical mirror and free-form surface mirror combination, at
Picture quality is good, there is higher resolving power and the lesser curvature of field and distortion.
5, the vehicle-mounted optical projection system can need to select installation site according to function, can not only show that automobile brand is believed
Breath, the function of realizing illumination and remind, and people-car interaction, Che Chejiao are also used as to the following intelligent driving and automatic Pilot
Mutual means of information transmission.
Detailed description of the invention
By referring to detailed description made by the following drawings, the above and further advantage of presently filed embodiment will become
It obtains it is clear that attached drawing is intended to show that the illustrative embodiments of the application rather than is limited.Phase in different attached drawings
Same or similar element is denoted by the same reference numerals, in the accompanying drawings:
Fig. 1 shows the schematic diagram of vehicle-mounted optical projection system according to prior art；
Fig. 2 shows the schematic diagrams of according to an embodiment of the present application 1 vehicle-mounted optical projection system；
Fig. 3 shows the schematic diagram of 2 vehicle-mounted optical projection system according to an embodiment of the present application；And
Fig. 4 shows the schematic diagram of 3 vehicle-mounted optical projection system according to an embodiment of the present application.
Wherein, Fig. 2 is respectively the vehicle-mounted optical projection system according to embodiment 1 to embodiment 3 in dashed circle frame into Fig. 4
Schematic enlarged-scale view.
Specific embodiment
The application is described in further detail with embodiment with reference to the accompanying drawing.It is understood that this place
The specific embodiment of description is used only for explaining related application, rather than the restriction to this application.It should be evident that for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.It also should be noted that illustrating only part relevant to the application for ease of description, in attached drawing.
In the specification, identical label refers to identical element.As used in this article, term "and/or" packet
Include any of one or more of associated listed item and all combination.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with
The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words
Term defined in allusion quotation) it should be interpreted as having and their consistent meanings of meaning in the context of the relevant technologies, and
It will not be explained with idealization or excessively formal sense, unless clear herein so limit.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can
To be combined with each other.The application is described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
The device of the carrying project information of usual existing vehicle-mounted optical projection system is film, since the image of film is solid
Fixed, the image style so as to cause projection is fixed.When attempting to change projected image pattern, the replacement film can only be selected
Piece.Since existing vehicle-mounted optical projection system is typically secured to automotive interior, so replacement film is time-consuming and laborious.In other words, existing
Vehicle-mounted optical projection system is difficult to realize easily change the pattern of projected image.
Based on this problem, the application proposes to replace the film using the dynamic image display device for being loaded with dynamic image data
Piece.The application proposes the vehicle-mounted optical projection system based on micro- shadow casting technique.Micro- shadow casting technique refer to using miniature display device and
Its optical system carrys out the technology of displaying digitized information.Main micro-display has DMD (Digital Micormirror
Device), LCD (Liquid Crystal Display) and LCOS (Liquid Crystal on Silicon).
In embodiments, the vehicle-mounted optical projection system of the application can be for example greeting lamp.Vehicle-mounted projection based on micro- projection
System includes projecting for luminous lighting module, as the dynamic image display device of multidate information carrier and by dynamic image
Projection module on face to be shown.As a kind of selection, the vehicle-mounted optical projection system based on micro- projection may also include for harmonizing
The light adjustment mechanism of light transport property.In vehicle-mounted optical projection system, lighting module and/or light adjustment mechanism, Dynamic Graph
As display device and projection module are set in sequence along the optical path of beam propagation.
Lighting module generallys use high-brightness LED light source.But the application is without being limited thereto, without departing from model of the invention
It, can be according to the needs of actual production and specific implementation, using suitable in field of projection systems and lighting area in the case where enclosing
Other lighting sources.
Light adjustment mechanism usually may include the combination of fly's-eye lens or collimation lens and relay lens.Light is harmonized
Mechanism carries out adjustment shaping to the light beam that lighting module issues, make by the uniform light beam of beam shaping.It should be understood that
Light adjustment mechanism is not limited to the combination of above-described lens, as long as it is uniform for can be realized the beam shaping that will be passed through
The eyeglass of outgoing beam.
Common DMD, LCD or LCOS microdisplay in micro- shadow casting technique usually can be used in dynamic image display device.It is dynamic
The information that expectation is projected on face to be shown is loaded on state image display device.Light beam after light adjustment mechanism is equal
Even irradiation carries the display information loaded on the dynamic image display device on dynamic image display device.
The assembled scheme of spheric glass, aspherical lens and/or free surface lens usually can be used in projection module, carries
The light beam of display information enters projection module, and display information by being projected on face to be shown by light beam after projection module.
The specific embodiment of the vehicle-mounted optical projection system according to the application is specifically described hereinafter with reference to Fig. 2 to Fig. 4.
Embodiment 1
The vehicle-mounted optical projection system of the specific embodiment 1 according to the application is specifically described referring to Fig. 2.Fig. 2 shows according to this
The schematic diagram of the vehicle-mounted optical projection system of the embodiment 1 of application.
As shown in Fig. 2, high-brightness LED light source 110 issues the light beam for illumination, light in the illustrative embodiments
Shu Shouxian is incident in the light adjustment mechanism including collimation lens 120 and relay lens 130.Wherein, collimation lens 120 is used for
Make the beam collimation issued from high-brightness LED light source 110 along straightline propagation, relay lens 130 is for making after beam shaping uniformly
On dynamic image display device after being radiated at.However, light adjustment mechanism is not limited to above-described 120 He of collimation lens
The combination of relay lens 130, as long as can be realized identical technical effect, light adjustment mechanism can also be as needed using other
Lens combination.
In this embodiment, dynamic image display device uses dmd chip 140.Dmd chip is integrated microelectromechanicpositioning
System, service life can reach 10 years or more.A piece of DMD is close by ranks by many small reflecting optics (abbreviation micro mirror)
It is arranged together in the electronic nodes for being attached to one piece of silicon wafer and is formed, each micro mirror corresponds to a picture for generating image
Element.The construction of dmd chip generally includes electronic circuit, mechanical and three parts of optics.Wherein, electronic circuitry part is control electricity
Road, mechanical part are the structure division for controlling eyeglass rotation, and opticator is optic portion.It is worked normally when dmd chip
When, light beam passes through dmd chip, and the small rotatable eyeglass that the surface DMD is covered with will be by rotating come the reflected beams, each
The rotation of eyeglass is all by circuit control.Dmd chip is due to being that pure semiconductor and metal material are constituted, in addition special electronics
Machine Design, stability are extremely strong.Image information for projection is loaded in dmd chip 140.Across the light of light adjustment mechanism
Beam can carry image information while reflection via dmd chip 140.In addition, dynamic image display device can be replaced as needed
The device of same or similar effect can be reached for other.
As shown in Fig. 2, in this exemplary embodiment, vehicle-mounted optical projection system further includes free-form surface mirror 150, from
It is arranged between dmd chip 140 and projection module 160 by curved reflector 150 along optical path.It is reflected by dmd chip 140
Light beam reflexes to projection module 160 by free-form surface mirror 150.The use of free-form surface mirror 150 can suitably subtract
The use of few aspherical lens, reduces difficulty of processing, guarantees image quality.
In this embodiment, combination of the projection module 160 including spherical mirror and aspherical lens is to improve image quality.
The characteristics of aspherical lens, is: being consecutive variations from center of lens to periphery curvature.It is constant with having from center of lens to periphery
The spheric glass of curvature is different, and aspherical lens have more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve picture
The advantages of dissipating aberration.After aspherical lens, the aberration occurred when imaging can be eliminated as much as possible, to be promoted
The image quality of camera lens.It should be noted that projection module is not limited to the spherical mirror and aspherical lens of present embodiment description
Combination, can according to need and use different lens combination modes to meet actual demand, further, in projection module
It also may include balsaming lens.In the projection module 160 of Fig. 2, the first eyeglass 161 and second along the setting of optical path sequence is shown
Eyeglass 162.In other words, the light beam for carrying projection information is incident to the first eyeglass 161 first, then via the second eyeglass 162
It is incident upon on face to be shown.It should be understood that the combination of the first eyeglass 161 and the second eyeglass 162 is previously described spherical surface
Any combination of mirror and aspherical lens.For example, the first eyeglass 161 can be spherical mirror and the second eyeglass 162 can be aspheric
Face mirror, or vice versa.
As shown in Fig. 2, by the collimated collimation of lens 120 of light beam and relay lens 130 that high-brightness LED light source 110 issues
After shaping, homogenizer reflects again after being radiated on dmd chip 140, carries DMD and shows the reflected beams of information through free song
Face reflecting mirror 150 is reflected into projection module 160, and information on DMD is projected on face to be shown by light beam by projection module.This
DLP (Digital Light Processing, digital light processing) shadow casting technique is applied to vehicle-mounted throwing by the embodiment of application
In the design of shadow system, dynamic image and no replacement is required display device can be shown, by using free-form surface mirror and ball
The combination of face lens and non-spherical lens can guarantee the image displaying quality of miniaturization structure.
Embodiment 2
The vehicle-mounted optical projection system of the specific embodiment 2 according to the application is specifically described referring to Fig. 3.Fig. 3 is shown according to this
The schematic diagram of the vehicle-mounted optical projection system of the embodiment 2 of application.
As shown in figure 3, high-brightness LED light source 210 issues the light beam for illumination, light beam is incident to saturating including collimating first
In the light adjustment mechanism of mirror 220 and relay lens 230.Collimation lens 220 and relay lens 230 are along the optical path side of beam propagation
It is arranged to sequence.Wherein, collimation lens 220 is used to make the beam collimation issued from high-brightness LED light source 210 along straightline propagation,
Relay lens 230 is for uniform irradiation after making beam shaping in dynamic image display device.However, light adjustment mechanism is unlimited
In the combination of above-described collimation lens 220 and relay lens 230, as long as can be realized identical technical effect, light tune
Complete machine structure can also be as needed using other lens combinations.
In this embodiment, dynamic image display device is dmd chip 240.Dmd chip 240 is loaded with for projecting
Image information, across light adjustment mechanism light beam via dmd chip 240 reflect while carry the image information.In addition,
Dynamic image display device can replace with other as needed can reach the device of same or similar effect.
It is different from the embodiment in Fig. 2, required space is installed in order to save, is not provided with freedom in this embodiment
Curved reflector.As shown in figure 3, being directly transmitted in projection module 250 via the light beam that dmd chip 240 reflects.
In this embodiment, the combination of projection module 250 including aspherical lens, spherical mirror and free-form surface lens with
Improve image quality.It should be noted that projection module is not limited to aspherical lens, spherical mirror and the freedom of present embodiment description
The combination of toroidal lens can according to need and use different lens combination modes to meet actual demand, further,
It also may include balsaming lens (as shown in Figure 3) in projection module.In the projection module 250 of Fig. 3, show along optical path sequence
The first eyeglass 251, the second eyeglass 252 and the third eyeglass 253 being arranged.In other words, the light beam for carrying projection information enters first
It is incident upon the first eyeglass 251, the light beam issued from the first eyeglass 251 is then incident upon the second eyeglass 252, finally from the second eyeglass
252 light beams issued are incident upon on face to be shown via third eyeglass 253.Wherein, the first eyeglass 251 it is glued by two pieces of lens and
At.It should be understood that the combination of the first eyeglass 251, the second eyeglass 252 and third eyeglass 253 is previously described aspherical
Any combination of eyeglass, spherical mirror and free-form surface lens.For example, the first eyeglass 251 can be aspherical mirror and aspherical mirror
Cemented doublet, the second eyeglass 252 can be spherical mirror and third eyeglass 253 can be free-form surface lens.For another example the
One eyeglass 251 can be free-form surface lens, and the second eyeglass 252 can be the cemented doublet of spherical mirror and spherical mirror, Yi Ji
Three eyeglasses 253 can be aspherical mirror.
It is desirable that third eyeglass 253 is set as free-form surface lens.Compared with Example 1, in projection module 250 most
The latter lens (that is, the third lens 253) use free-form surface lens, to replace the free-form surface mirror in embodiment 1
150, guarantee the image quality of system.
As shown in figure 3, by the collimated collimation of lens 220 of light beam and relay lens 230 that high-brightness LED light source 210 issues
After shaping, reflected again after homogenizer is radiated on dmd chip 240, carry DMD show information the reflected beams directly into
Enter projection module 250, then the information on DMD is projected on face to be shown by light beam by projection module 250.The reality of the application
It applies mode and DLP (Digital Light Processing, digital light processing) shadow casting technique is applied into vehicle-mounted optical projection system
In design, dynamic image and no replacement is required display device can be shown, and DMD the reflected beams are directly entered projection module 250,
Without using free-form surface mirror, space required for installation is largely saved.
Embodiment 3
The vehicle-mounted optical projection system of the specific embodiment 3 according to the application is specifically described referring to Fig. 4.Fig. 4 is shown according to this
The schematic diagram of the vehicle-mounted optical projection system of the embodiment 3 of application.
As shown in figure 4, high-brightness LED light source 310 issues the light beam for illumination.
In the illustrative embodiments, light adjustment mechanism is using fly's-eye lens 320.Fly's-eye lens is by a system
Column lenslet combines to be formed, by all gathering per a branch of for the directional light (intensity distribution is uneven) of light source sending.It will be double
Fly eye lens array can obtain the Uniform Illumination of the high efficiency of light energy utilization and large area applied to lighting system.Fly's-eye lens exists
Micro-display and field of projection display have broad application prospects.Fly's-eye lens 320 makes from the sending of high-brightness LED light source 310
Homogenizer is radiated on dynamic image display device.However, light adjustment mechanism is not limited to the fly's-eye lens 320 of description, only
It can be realized identical technical effect, (such as, above light adjustment mechanism can also use as needed other lens combinations
The combination of the collimation lens and relay lens of description).
In this embodiment, dynamic image display device is TFT display 330.TFT display belongs to LCD micro display
Device has many advantages, such as that refresh rate is fast, color is true to nature, brightness is distinct, can at a high speed, high brightness, high contrast show screen
Information.In addition, it also have the characteristics that flicker free, it is radiationless, without electrostatic.TFT display 330 is loaded with the image for projection
Information carries the image information while transmission across the light beam of fly's-eye lens 320 via TFT display 330.In addition, dynamic
Image display device can replace with other as needed can reach the device of same or similar effect.As shown in figure 4, via
The light beam for carrying image information that TFT display 330 transmits is directly transmitted in projection module 340.
In this embodiment, any combination of projection module 340 including aspherical lens and spherical mirror is to improve imaging
Quality.It is to be noted, however, that projection module is not limited to the combination of the aspherical lens and spherical mirror of present embodiment description,
It, which can according to need, uses different lens combination modes to meet actual demand, further, may be used also in projection module
Include balsaming lens (as shown in Figure 4).In projection module 340 shown in Fig. 4, the first mirror along the setting of optical path sequence is shown
Piece 341, the second eyeglass 342 and third eyeglass 343.In other words, the light beam for carrying projection information is incident to the first eyeglass first
341, the light beam transmitted from the first eyeglass 341 is then incident upon in the second eyeglass 342, the light finally issued from the second eyeglass 342
Beam is incident upon on face to be shown via third eyeglass 343.Wherein, the first eyeglass 341 is formed by two pieces of lens gluings.According to the reality
The vehicle-mounted optical projection system for applying mode has the overall structure of in-line arrangement.It should be understood that the first eyeglass 341,342 and of the second eyeglass
The combination of third eyeglass 343 is any combination of previously described aspherical lens and spherical mirror.For example, the first eyeglass 341
Cemented doublet, the second eyeglass 342 that can be aspherical mirror and aspherical mirror can be that spherical mirror and third eyeglass 343 can be with
For non-spherical lens.For another example the first eyeglass 251 can be aspherical lens, the second eyeglass 252 can be spherical mirror and spherical surface
The cemented doublet and third eyeglass 253 of mirror can be aspherical lens.
As shown in figure 4, homogenizer is radiated at by the light beam issued by high-brightness LED light source 310 through fly's-eye lens 320
On TFT display 330, carries TFT and show that the transmitted light beam of information enters projection module 340, light beam passes through projection module for TFT
On information be projected on face to be shown.Different from above-described embodiment 1 and embodiment 2, in the present embodiment, image-carrier is
TFT display, light beam penetrate TFT display, carry image information and enter projection module.Presently filed embodiment throws LCD
Shadow Technology application can show dynamic image and no replacement is required display device, what is used is saturating into the design of vehicle-mounted optical projection system
Mirror quantity is few, and the structure of in-line arrangement is simple, facilitates production, is conducive to installation.
According to above-mentioned each embodiment, micro- shadow casting technique's use is based on according to the vehicle-mounted optical projection system of the application and is loaded with
The dynamic image display device (for example, dmd chip, TFT display) of multidate information changes display image, it can display is dynamic
State image.It is not in be common in shine using the long-term light source of film optical projection system meanwhile using dynamic image display device
Penetrate rear aging, the problems such as the imaging is not clear, service life is shorter.Correspondingly, also had according to the vehicle-mounted optical projection system of the application
Structure tends to minimize, and is conducive to installation, and image quality is good, solves the advantages that image height.
Present invention also provides a kind of methods using vehicle-mounted projection system projects information, method includes the following steps:
1) light beam for illumination is issued using lighting module；
2) after light beam is radiated at dynamic image display device, light beam carries information to be shown, while Dynamic Graph
As display device will carry the beam Propagation of information to be shown to projection module；And
3) carry information to be shown light beam pass through projection module, projection module by information projection to be shown to
On display surface.
Wherein, may also include according to the present processes makes the light beam issued from lighting module be incident to light adjustment machine
Structure, so that homogenizer is radiated on dynamic image display device.
In the methods described above, various optical paths are identical with the description in above-described embodiment 1-3, therefore repeat no more.
Above description is only the better embodiment of the application and the explanation to institute's application technology principle.Art technology
Personnel should be appreciated that invention scope involved in the application, however it is not limited to skill made of the specific combination of above-mentioned technical characteristic
Art scheme, while should also cover in the case where not departing from the inventive concept, by above-mentioned technical characteristic or its equivalent feature into
Row any combination and the other technical solutions formed.Such as features described above and (but being not limited to) disclosed herein have it is similar
The technical characteristic of function is replaced mutually and the technical solution that is formed.
Claims (13)
1. vehicle-mounted optical projection system, comprising:
Lighting module issues the light beam for illumination；
Dynamic image display device, is loaded with information to be shown, and the light beam passes through after the dynamic image display device
Carry the information to be shown；And
Projection module carries the light beam of information to be shown described in reception, and by the information projection to be shown to aobvious
Show on face.
2. vehicle-mounted optical projection system according to claim 1, further includes:
Light adjustment mechanism is arranged after the lighting module along the optical path of the light beam, to the incident light beam into
Row shaping simultaneously exports uniform light beam, and by dynamic image display device described in the uniform light beam directive.
3. vehicle-mounted optical projection system according to claim 2, wherein the light adjustment mechanism includes:
Collimation lens is collimated and is exported to the incident light beam；And
Relay lens carries out shaping, homogenization to the light beam exported from the collimation lens and exports.
4. vehicle-mounted optical projection system according to claim 1 or 3, wherein the dynamic image display device is dmd chip.
5. vehicle-mounted optical projection system according to claim 4, wherein the projection module includes aspherical lens, spherical mirror
Any combination with free-form surface lens is to improve image quality, wherein reflects and carries through the dynamic image display device
The light beam of the information to be shown is directly transmitted to the projection module.
6. vehicle-mounted optical projection system according to claim 4, further include setting the dynamic image display device with it is described
Free-form surface mirror between projection module, the free form surface transmitting mirror will be injected from the dynamic image display device
Light beam reflexes to the projection module.
7. vehicle-mounted optical projection system according to claim 6, wherein the projection module includes spherical mirror and aspherical lens
Any combination to improve image quality.
8. vehicle-mounted optical projection system according to claim 2, wherein the light adjustment mechanism is fly's-eye lens, described multiple
Eyelens is radiated at the homogenizer issued from the lighting module on the dynamic image display device.
9. vehicle-mounted optical projection system according to claim 1 or 8, wherein the dynamic image display device is that TFT is shown
Device.
10. vehicle-mounted optical projection system according to claim 9, wherein the projection module includes aspherical lens and spherical surface
Any combination of mirror to improve image quality, the carrying information to be shown that is transmitted from the dynamic image display device
Light beam is directly transmitted to the projection module.
11. vehicle-mounted optical projection system according to claim 1, wherein the lighting module is high-brightness LED light source.
12. a kind of method using such as vehicle-mounted projection system projects information of any of claims 1-11, the side
Method includes:
The light beam for illumination is issued using lighting module；
After the light beam is radiated at the dynamic image display device, the light beam carries information to be shown, simultaneously
The dynamic image display device is by the beam Propagation for carrying information to be shown to projection module；And
The light beam for carrying information to be shown passes through projection module, and the projection module throws the information to be shown
It penetrates on face to be shown.
13. according to the method for claim 12, further including that the light beam issued from lighting module is made to be incident to light tune
Complete machine structure, so that the homogenizer is radiated on dynamic image display device.
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| CN201711394976.1A CN109946910A (en) | 2017-12-21 | 2017-12-21 | Vehicle-mounted optical projection system |
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| CN201711394976.1A CN109946910A (en) | 2017-12-21 | 2017-12-21 | Vehicle-mounted optical projection system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967870A (en) * | 2019-12-17 | 2020-04-07 | 重庆大学 | Multi-pixel lighting and display device for intelligent automobile lamp |
| CN111237719A (en) * | 2020-02-28 | 2020-06-05 | 华域视觉科技(上海)有限公司 | Welcome system, welcome lamp, vehicle and welcome method |
| CN114071098A (en) * | 2020-07-31 | 2022-02-18 | 宁波舜宇车载光学技术有限公司 | Projection system and projection method thereof |
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Application publication date: 20190628 |