CN215922040U - Image projection apparatus - Google Patents
Image projection apparatus Download PDFInfo
- Publication number
- CN215922040U CN215922040U CN202121414325.6U CN202121414325U CN215922040U CN 215922040 U CN215922040 U CN 215922040U CN 202121414325 U CN202121414325 U CN 202121414325U CN 215922040 U CN215922040 U CN 215922040U
- Authority
- CN
- China
- Prior art keywords
- light
- image projection
- vehicle
- image
- light source
- 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.)
- Active
Links
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 230000005032 impulse control Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/22—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for reverse drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
-
- 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
- G03B21/20—Lamp housings
- G03B21/206—Control of light source other than position or intensity
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Marketing (AREA)
- Theoretical Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The utility model provides an image projection device which can cooperate with other vehicle lamps to display more appropriately to the outside of a vehicle. An image projection device (1) is provided in parallel with other vehicle lamps, and is provided with a light source (2) for emitting light (L) for projecting an image (G), and a control system (11) for controlling the light source (2). The control system (11) controls the ON/OFF of the light source (2) in a manner of interlocking with the ON/OFF of other vehicle lamps such as a backup lamp (52). In the image projection apparatus (1), a plurality of light sources (2 a-2 c) are arranged in a vertical direction, and light (L1-L3) from the light sources (2 a-2 c) projects a plurality of images (G1-G3) onto a road surface (R).
Description
Technical Field
The present invention relates to an image projection apparatus for a vehicle that projects a predetermined image on a road surface.
Background
Conventionally, in a vehicle lamp, there is known a technique of projecting an image on a road surface to call attention of surrounding vehicles and pedestrians or assist driving of a driver. For example, patent document 1 proposes a utility model of a start notification display device that uses a start notification display in which a predetermined shape is drawn on a road surface in the traveling direction of a vehicle by light to allow a pedestrian or the like to accurately grasp the timing at which the vehicle starts.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2020-55519
SUMMERY OF THE UTILITY MODEL
Problem to be solved by the utility model
In the vehicle, various vehicle lamps such as a headlight, a backup light, and a turn signal light are mounted. In addition, these vehicle lamps also have a function of displaying the driving state of the vehicle and calling attention to surrounding vehicles and pedestrians. Therefore, there is a demand for more appropriate display to the outside of the vehicle by cooperating the vehicle lamp and the image projection device.
Therefore, an object of the present invention is to provide an image projection device capable of performing more appropriate display to the outside of a vehicle in cooperation with other vehicle lamps.
Means for solving the problems
In order to solve the above-described problems, an image projection apparatus according to the present invention is an image projection apparatus for a vehicle capable of projecting a plurality of images onto a road surface at a time, the image projection apparatus including a plurality of light sources for emitting light for projecting the plurality of images, and a control unit for controlling the light sources, wherein the control unit turns on and off the light sources in a manner linked with turning on and off of other vehicle lamps.
The control unit may also sequentially turn on the plurality of light sources.
Other vehicle lamps may employ a backup lamp or a turn signal lamp.
The image projection device of the present invention is provided in parallel with another vehicle lamp, and the light emitted from the light source is visually recognized as being integrated with the light emitted from the other vehicle lamp.
The image projection apparatus according to the present invention may be configured such that a plurality of light sources are arranged in parallel in the vertical direction, and an image extending in the vehicle longitudinal direction is projected by light emitted from the plurality of light sources.
The image projection apparatus of the present invention may be configured such that the light source and the image drawn by the light from the light source are arranged on the same straight line in a plan view.
The light source is preferably disposed below the bumper.
Effect of the utility model
According to the image projection apparatus of the present invention, since the control is performed so as to be turned on in conjunction with the other vehicle lamp, it is possible to more clearly transmit the information displayed by the vehicle lamp to the outside of the vehicle.
Drawings
Fig. 1 is a schematic diagram showing an image projection apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic exploded perspective view of the image projection apparatus.
Fig. 3 is a schematic view showing a projection state of the image projection apparatus onto a road surface.
Fig. 4 is a schematic diagram showing a configuration state of the image projection apparatus.
Fig. 5 is a schematic view showing an image projected by an image projection device provided in parallel with a backup lamp.
Fig. 6 is a schematic diagram showing an image projected by the image projection apparatus. Fig. 6 (a) shows a side turn signal lamp, and fig. 6 (b) shows a headlight lamp.
Description of the reference numerals
1 image projection apparatus
2 light source
3 shading parts
4 lens
5 Accessories
6 extension piece
7 substrate
11 control system (image projection device)
12ECU (image projection device)
13 light-on/off control circuit (image projection device)
21 control system (backup lamp)
22ECU (reversing light)
23 lights and extinguishes control circuit (reversing light)
31 opening part
32 upper bottom (opening part)
33 lower bottom (opening part)
51 vehicle body
52 backup lamp
53 bumper
G1-G3 (collectively referred to as "G") images
P position
Distance of projection D
W1-W3 (collectively referred to as "W") in width
d distance between light sources
L light
Line A
R road surface
Detailed Description
Hereinafter, an embodiment of the present invention embodied as an image projection apparatus will be described with reference to the drawings. The image projection apparatus 1 shown in fig. 1 to 3 includes a plurality of light sources 2(2a to 2c) that emit light L of a projection image G, and a control system 11 that controls the light sources 2.
The control system 11 includes an impulse control circuit 13 for sequentially turning on, off, and on the light source 2, and an ECU12 for controlling the impulse control circuit 13. The ECU12 receives a control signal from the control system 21 of the backup lamp 52, and controls the turning-on/off control circuit 13 to be interlocked with the turning-on/off of the backup lamp 52.
Here, the sequential lighting means that the following control is repeatedly performed: the light source 2 is turned on and off in the order of the light source 2c, the light source 2b, and the light source 2a at predetermined time intervals, and the light source 2 is turned on again in the order of the light source 2c, the light source 2b, and the light source 2a at predetermined time intervals. In the sequential lighting, when the light source 2 is turned on in the order of the light source 2c, the light source 2b, and the light source 2a, the image G3, the image G2, and the image G1 are projected onto the road surface R in the order of the image G closer to the vehicle body 51.
As shown in fig. 2, the image projection apparatus 1 includes a substrate 7 on which the light source 2 is mounted, an attachment 5 for attaching the light blocking member 3 to the substrate 7, the light blocking member 3 for cutting the light L from the light source 2 into a shape corresponding to the image G, a lens 4 through which the light L from the light source 2 passes, and an extension 6 for shielding the internal structure of the image projection apparatus 1 from the outside of the vehicle.
The light sources 2a to 2c are LEDs having the same luminance and the same current value, and are arranged vertically. By arranging the light sources 2 vertically, there is an advantage that the optical design of the lens can be simplified as compared with the case of arranging them in the lateral direction.
The light source 2 is arranged such that the lights L1 to L3 emitted from the light sources 2a to 2c are inclined from obliquely above toward the road surface R. With this arrangement, images G1 to G3 extending in the vehicle length direction are projected on the road surface.
The light sources 2a to 2c are arranged on the same straight line as an image drawn by light from the light source 2 in a plan view. By aligning the light source 2 with the images G1 to G3, it is easier to recognize that the images belong to the same function, compared to the case where the light source 2 and the image G are projected while being shifted in the left-right direction. In this case, a vehicle lamp (for example, the backup lamp 52) disposed in parallel with the light source 2 may be further included so as to be disposed on the same straight line as the light source 2 and the image G.
The light blocking member 3 is provided with a trapezoidal opening 31 having an upper base 32 longer than a lower base 33. By appropriately adjusting the ratio of the upper base 32 to the lower base 33, the shape of the projected image G can be adjusted. For example, the opening 31 may be formed in a rectangular shape, and a trapezoidal image G having a larger width may be projected as the distance from the vehicle increases.
The shape and area of the opening 31 are all the same. By making the area and shape of the opening 31 the same, the structure of the light blocking member 3 can be simplified and the manufacturing cost can be suppressed.
The plurality of lenses 4(4a to 4c) are integrally formed, and configured to transmit the plurality of lights L1 to L3 from the plurality of light sources 2a to 2c, respectively. The lenses 4a to 4c are provided to have different diameters, and the diameters are smaller toward the lower side. In this case, the lenses 4 are arranged so that the distance between the lenses 4 increases as the diameter increases, so as not to overlap with each other. The lens 4 determines the position of the distance light source 2 based on its focal length.
At this time, the inclination of the lens 4 is adjusted to: the light L passing through the lens 4 with the larger diameter projects the image G farther than the lens 4 with the smaller diameter. The inclination of the lens 4 is set as: the lens 4 projected in the vicinity of the vehicle projection device 1 and the vehicle body 51 has a larger inclination. By such adjustment, the light flux passing through the lens 4 having a large diameter is larger than the light flux passing through the lens 4 having a small diameter, and therefore the image G can be projected to an equivalent illuminance regardless of the distance from the vehicle body 51. The lens 4 may be arranged to have a larger diameter toward the lower side. In this case, the inclination of the lens 4 is preferably adjusted so that the image G is projected farther from the vehicle body 51 as the lens 4 having a larger diameter becomes larger.
As shown in fig. 4, the image projection apparatus 1 is disposed below the bumper 53. Since the light L from the image projection device 1 is brighter than other vehicle lamps, glare is likely to occur. The arrangement below the bumper can be expected to suppress glare. In addition, the image projection apparatus 1 is disposed in parallel with the backup lamp 52, and is disposed so that the light L from the light source 2 is visually recognized as being integrated with the light L' from the backup lamp 52. In particular, it is preferable that the distance d between the light source 2 and the light source 2 'of the backup lamp 52 is 75mm or less so that the light L, L' is visually recognized as a single body.
Fig. 5 shows a state where the image projection apparatus 1 configured as described above is turned on. The images G1 to G3 are drawn on a straight line a that projects the optical axes of the light sources 2a to 2c onto the road surface R. In the case of the image G, the image G projected to a position farther from the vehicle body 51 extends longer in the vehicle length direction than the image G projected to a position closer to the vehicle body 51 (D1 > D2 > D3). In addition, the image G projected to a position farther from the vehicle body 51 becomes wider in the vehicle width direction than the image G projected to a position closer to the vehicle body 51 (W1 > W2 > W3).
The image projection apparatus 1 may be provided in parallel with a vehicle lamp other than the backup lamp 52, for example, a headlight, a side turn signal lamp, or the like. Fig. 6 (a) is a view schematically showing an image G projected when the side turn signal lamp is arranged in parallel, and fig. 6 (b) is a view schematically showing an image G projected when the side turn signal lamp is arranged in parallel. When the image G is provided in parallel with the backup lamp 52 or the headlight, the image G is projected to a position inside the vehicle width. On the other hand, when the image G is provided in parallel with the side turn signal lamp, the image G is projected so as to spread leftward and rightward as it goes away from the vehicle body 51.
Here, the preferable projection distance D in the vehicle length direction of the image G varies depending on the mounting position of the image projection apparatus 1. For example, it is preferably within 3m in the case of the headlight or the back-up lamp 52, and within 5m in the case of the side turn signal lamp. In particular, in the case of the backup lamp 52, it is most preferable to set the projection distance D to 2.5 m. Further, it is preferable to adjust the light source 2 so that the luminance of the image G becomes about 7000cd at the brightest position P. Further, it is preferable to adjust the optical performance so that the luminance of the image G is 0.2 or more of the michelson contrast at the brightest position P.
In the image projection apparatus 1 configured as described above, the light-on/off control by the control system 11 will be described next. When the vehicle starts to reverse, the control system 21 of the backup lamp 52 performs control for lighting the backup lamp 52. At this time, the ECU22 of the backup lamp 52 sends a control signal to the control system 11 of the image projection apparatus 1. The ECU12 of the control system 11 that has received the control signal turns on all of the light sources 2a to 2c of the image projection apparatus 1. When the light sources 2c, 2b, and 2a are sequentially turned on, the ECU12 turns them on in this order. At this time, the light source 2 (the light source 2c in the case of sequential lighting) is viewed from the outside of the vehicle and simultaneously lit with the backup lamp 52.
According to the above image projection device 1, since the image G is projected in conjunction with other vehicle lamps such as the backup lamp 52, information that the vehicle is moving backward can be more clearly transmitted to the outside of the vehicle. In addition, since the opening 31 of the light-shielding member 3 for forming the image G is formed to have the same area and shape, the structure of the light-shielding member 3 can be simplified and the manufacturing cost can be reduced. Further, since a plurality of images G1 to G3 can be projected at once or sequentially using one light-shielding member 3 and one lens 4, the number of parts can be reduced and the cost can be reduced.
Note that the present invention is not limited to the above-described embodiments, and for example, the shape and configuration of each part may be appropriately changed and implemented as exemplified below without departing from the scope of the present invention. Further, although the example of interlocking with the backup lamp 52 has been described, for example, the projection onto the road surface may be started in interlocking with the lighting of the headlight. Alternatively, for example, the start light may be set to start projection onto the road surface simultaneously with turning on of the low beam light.
Claims (8)
1. An image projection apparatus for a vehicle capable of projecting a plurality of images onto a road surface at a time,
the image projection apparatus includes a plurality of light sources for emitting light for projecting the plurality of images, and a control unit for controlling the light sources,
the control unit turns on and off the light source in a manner of interlocking with turning on and off of other vehicle lamps.
2. The image projection apparatus according to claim 1, wherein the control unit causes the plurality of light sources to be sequentially turned on.
3. An image projection arrangement according to claim 1 or 2, wherein the other vehicle light is a backup light.
4. The image projection apparatus according to claim 1 or 2, wherein the other vehicle lamp is a turn signal lamp.
5. An image projection arrangement according to claim 1 or 2,
the image projection device is arranged in parallel with the other vehicle lamp,
the light emitted from the light source is visually recognized as being integrated with the light emitted from the other vehicle lighting device.
6. The image projection apparatus according to claim 1 or 2, wherein the plurality of light sources are arranged in parallel in the vertical direction, and the light irradiated from the plurality of light sources projects an image extending in the vehicle length direction.
7. The image projection apparatus according to claim 1 or 2, wherein the light source and the image drawn by the light from the light source are arranged on the same line in a plan view.
8. An image projection arrangement according to claim 1 or 2, wherein the light source is arranged on the underside of the bumper.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020-123604 | 2020-07-20 | ||
| JP2020123604 | 2020-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215922040U true CN215922040U (en) | 2022-03-01 |
Family
ID=79460225
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121414325.6U Active CN215922040U (en) | 2020-07-20 | 2021-06-24 | Image projection apparatus |
| CN202110704702.8A Pending CN113954738A (en) | 2020-07-20 | 2021-06-24 | Image projection apparatus |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110704702.8A Pending CN113954738A (en) | 2020-07-20 | 2021-06-24 | Image projection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN215922040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113954738A (en) * | 2020-07-20 | 2022-01-21 | 株式会社小糸制作所 | Image projection apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5457508B2 (en) * | 2012-07-05 | 2014-04-02 | スタンレー電気株式会社 | Vehicle headlamp |
| JP6299370B2 (en) * | 2014-04-18 | 2018-03-28 | 株式会社デンソー | Headlight control device |
| EP3434966B1 (en) * | 2016-03-24 | 2023-02-22 | Koito Manufacturing Co., Ltd. | Vehicle lamp and vehicle provided with it |
| DE112017006529B4 (en) * | 2017-01-26 | 2022-07-14 | Mitsubishi Electric Corporation | RADIATION CONTROL DEVICE AND RADIATION METHOD |
| JP7122903B2 (en) * | 2018-07-27 | 2022-08-22 | マクセル株式会社 | Road surface image projection device and vehicle lamp |
| CN215922040U (en) * | 2020-07-20 | 2022-03-01 | 株式会社小糸制作所 | Image projection apparatus |
-
2021
- 2021-06-24 CN CN202121414325.6U patent/CN215922040U/en active Active
- 2021-06-24 CN CN202110704702.8A patent/CN113954738A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113954738A (en) * | 2020-07-20 | 2022-01-21 | 株式会社小糸制作所 | Image projection apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113954738A (en) | 2022-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9688184B2 (en) | Vehicle lamp system | |
| US9494288B2 (en) | Automotive headlamp apparatus | |
| US20190360652A1 (en) | Vehicle lamp | |
| US7510310B2 (en) | Vehicle lighting device | |
| US8872425B2 (en) | Light distribution control system for vehicle | |
| CN110997407B (en) | Automatic driving vehicle | |
| CN113661091B (en) | Communication lamp device for vehicle | |
| US10114279B2 (en) | Vehicle headlamp for projecting driving information | |
| JP7273839B2 (en) | lighting system | |
| JP7615148B2 (en) | Image Projection Device | |
| US20240102627A1 (en) | Road surface rendering device | |
| JP5222743B2 (en) | Vehicle headlamp device | |
| JP2013127963A (en) | Lighting module for generating interlacing of light strip | |
| CN215922040U (en) | Image projection apparatus | |
| US20240059214A1 (en) | Vehicle projection device, control method therefor, and vehicle lamp | |
| US12247712B2 (en) | Vehicle light fixture | |
| CN215922041U (en) | Image projection apparatus | |
| JP2022106673A (en) | Vehicle projection device, its control method, and vehicle lighting equipment | |
| CN216034065U (en) | Image projection apparatus | |
| WO2019194218A1 (en) | Device for displaying traveling direction | |
| CN221705255U (en) | Road surface drawing lamp and road surface drawing lamp for vehicle | |
| CN116669992A (en) | Projection device for vehicle, control method thereof, and lamp for vehicle | |
| JP2024041670A (en) | Vehicle lighting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |