EP4548006A1 - Projection device, lighting and/or signaling device and vehicle - Google Patents

Projection device, lighting and/or signaling device and vehicle

Info

Publication number
EP4548006A1
EP4548006A1 EP23739158.6A EP23739158A EP4548006A1 EP 4548006 A1 EP4548006 A1 EP 4548006A1 EP 23739158 A EP23739158 A EP 23739158A EP 4548006 A1 EP4548006 A1 EP 4548006A1
Authority
EP
European Patent Office
Prior art keywords
light
housing
patterning device
projection device
transmitting area
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.)
Pending
Application number
EP23739158.6A
Other languages
German (de)
French (fr)
Inventor
Stone WU
Weifang HUANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP4548006A1 publication Critical patent/EP4548006A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • 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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/08—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier
    • G03B23/10—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier drum or disc carrier
    • G03B23/105—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier drum or disc carrier disc carriers
    • 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
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/50—Projected symbol or information, e.g. onto the road or car body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/60—Projection of signs from lighting devices, e.g. symbols or information being projected onto the road

Definitions

  • the present invention relates a projection device, a lighting and/or signaling device and a vehicle.
  • the purpose of the embodiments of the present invention is to solve at least one aspect of the above-mentioned problem.
  • a projection device comprising: a housing, having a light outlet part; a light source, disposed in the housing and configured to emit light; a first lens, disposed in the housing and used to form parallel beams from light coming from the light source; a patterning device, disposed in the housing and located downstream of the parallel beams emergent from the first lens, the patterning device having at least one first light-transmitting area and being configured to rotate around its centre so that the at least one first light-transmitting area is rotated to a light path where the parallel beams pass through the light outlet part.
  • the projection device further comprises a forming plate located in the housing, the forming plate being arranged between the first lens and the patterning device and provided with a forming hole so that the parallel beams pass through the forming hole and irradiate the patterning device, wherein the forming hole has length extending along the rotation direction of the patterning device.
  • the length of the at least one first light-transmitting area along the rotation direction is greater than the length of the forming hole.
  • the patterning device further has at least one second light-transmitting area, the length of the at least one second light-transmitting area along the rotation direction being smaller than the length of the forming hole.
  • the projection device further comprises a motor located in the housing, the motor having a drive shaft, the drive shaft being connected to the patterning device to drive the patterning device to rotate.
  • the projection device further comprises a second lens, the second lens being disposed at the light outlet part of the housing.
  • the at least one first light-transmitting area and the at least one second light-transmitting area are constructed to be a hollowed-out pattern.
  • the patterning device is constructed to be a light modulation film.
  • a lighting and/or signaling device comprising the projection device.
  • a vehicle comprising the projection device or the lighting and/or signaling device.
  • FIG. 1 is a sectional view of a projection device according to one embodiment of the present invention.
  • FIG. 1 is a front view of a patterning device used in according to one embodiment of the present invention.
  • the projection device 100 comprises a housing 110, and a light source 120, a first lens 130, a forming plate 150, a patterning device 140, a motor 160 and a second lens 170, which are accommodated in the housing 110.
  • the first lens 130 is used to form parallel beams 121 from light emitted from the light source 120 located on a substrate 180.
  • the housing 110 has a light outlet part 112 formed in the side wall 111 of the housing 110 (namely, a hole that allows light to pass through).
  • the patterning device 140 is located downstream of the parallel beams 121 emergent from the first lens 130.
  • the patterning device 140 has at least one first light-transmitting area 141 and is configured to be driven by the motor 160 to rotate around the centre of the patterning device 140 so that the at least one first light-transmitting area 141 is rotated to a light path where the parallel beams 121 pass through the light outlet part 112, thus forming dynamically changing projection patterns to meet diverse traffic demands and accurately convey complex traffic information.
  • the motor 160 has a drive shaft 161 and the drive shaft 161 passes through the forming plate 150 and is connected to the patterning device 140 to drive the patterning device 140 to rotate.
  • the forming plate 150 is arranged between the first lens 130 and the patterning device 140 and is provided with a forming hole 151 so that the parallel beams 121 pass through the forming hole 151 and irradiate the patterning device 140.
  • the forming hole 151 has a length extending along the rotation direction D of the patterning device 140 to form the parallel beams 121.
  • the formed parallel beams 121 irradiate the patterning device 140 to be patterned by the patterning device 140 to form expected dynamic patterns.
  • the patterning device 140 is constructed to be a light modulation film and has two first light-transmitting areas 141 and four second light-transmitting areas 142. All the light-transmitting areas 141 and 142 are constructed to be hollowed-out patterns. The shadow part on the patterning device 140 indicates a non-light-transmitting area.
  • the first light-transmitting areas 141 have a shape that extends along the circumference of the patterning device 140. Specifically, the length of the first light-transmitting areas 141 along the rotation direction D of the patterning device 140 is greater than the length of the forming hole 151 so that the formed parallel beams 121 projected to each first light-transmitting area 141 can be uninterruptedly transmitted through the patterning device 140 to generate continuously changing dynamic patterns and form the corresponding patterned beams during the rotation of the patterning device 140.
  • the first light-transmitting areas 141 can also be of other shapes such as graphics, letters, and logos.
  • all the second light-transmitting areas 142 are of roughly rectangular shape and the length of the second light-transmitting area 142 along the rotation direction D of the patterning device 140 is smaller than the length of the forming hole 151 so that the formed parallel beam 121 projected to each second light-transmitting area 142 can be intermittently transmitted through the patterning device 140 to generate discontinuously changing dynamic patterns and form the corresponding patterned beams during the rotation of the patterning device 140.
  • the second light-transmitting areas 142 can also be of other shapes such as graphics, letters, and logos.
  • combinations of continuously and discontinuously changing dynamic patterns can be generated through the patterning device 140 in the embodiment shown in .
  • a combination of patterns can be used to generate patterns such as "welcome”, “byebye” and “reversible”.
  • such a combination of patterns can also be used to generate patterns, for example, to express the charging mode.
  • the present invention is not limited to this and that the shape, quantity and distribution of the light-transmitting areas 141 and 142 can be set according to actual requirements to obtain expected patterns.
  • the patterned beams are emergent from the housing 110 through the second lens 170 disposed at the light outlet part 112 of the housing 110.
  • the second lens 170 can be a collimating lens that collimate the emergent patterned beams.
  • the projection device 100 according to the present invention not only can be installed in a lighting and/or signaling device for a vehicle, but can also be used for any other appropriate application scenarios.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The present invention discloses a projection device (100), a lighting and/or signaling device and a vehicle. The projection device (100) comprises: a housing (110), having a light outlet part (112); a light source (120), disposed in the housing (110) and configured to emit light; a first lens (130), disposed in the housing (110) and used to form parallel beams from light emitted by the light source (120); a patterning device (140), disposed in the housing (110) and located downstream of the parallel beams emergent from the first lens (130), the patterning device (140) having at least one first light- transmitting area (141) and being configured to rotate around its centre so that the at least one first light-transmitting area (141) is rotated to a light path where the parallel beams pass through the light outlet part (112).

Description

    PROJECTION DEVICE, LIGHTING AND/OR SIGNALING DEVICE AND VEHICLE
  • The present invention relates a projection device, a lighting and/or signaling device and a vehicle.
    •
  • As society develops and traffic technology advances, there is an urgent need for a projection device that can project dynamically changing patterns to meet diverse traffic demands and accurately convey complex traffic information. However, patterns projected by projection devices are usually static in existing vehicles, making it difficult to meet these increasing traffic demands.
  • 　
    •  Summary
  • The purpose of the embodiments of the present invention is to solve at least one aspect of the above-mentioned problem.
  • According to one aspect of the present invention, a projection device is provided, comprising: a housing, having a light outlet part; a light source, disposed in the housing and configured to emit light; a first lens, disposed in the housing and used to form parallel beams from light coming from the light source; a patterning device, disposed in the housing and located downstream of the parallel beams emergent from the first lens, the patterning device having at least one first light-transmitting area and being configured to rotate around its centre so that the at least one first light-transmitting area is rotated to a light path where the parallel beams pass through the light outlet part.
  • According to one aspect of the present invention, the projection device further comprises a forming plate located in the housing, the forming plate being arranged between the first lens and the patterning device and provided with a forming hole so that the parallel beams pass through the forming hole and irradiate the patterning device, wherein the forming hole has length extending along the rotation direction of the patterning device.
  • According to one aspect of the present invention, the length of the at least one first light-transmitting area along the rotation direction is greater than the length of the forming hole.
  • According to one aspect of the present invention, the patterning device further has at least one second light-transmitting area, the length of the at least one second light-transmitting area along the rotation direction being smaller than the length of the forming hole.
  • According to one aspect of the present invention, the projection device further comprises a motor located in the housing, the motor having a drive shaft, the drive shaft being connected to the patterning device to drive the patterning device to rotate.
  • According to one aspect of the present invention, the projection device further comprises a second lens, the second lens being disposed at the light outlet part of the housing.
  • According to one aspect of the present invention, the at least one first light-transmitting area and the at least one second light-transmitting area are constructed to be a hollowed-out pattern.
  • According to one aspect of the present invention, the patterning device is constructed to be a light modulation film.
  • According to another aspect of the present invention, a lighting and/or signaling device is provided, comprising the projection device.
  • According to one more aspect of the present invention, a vehicle is provided, comprising the projection device or the lighting and/or signaling device.
    •  Brief Description of the Drawings
  • Embodiments of the present invention will now be described in detail, by way of example only, with reference to the following accompanying drawings.
  • is a sectional view of a projection device according to one embodiment of the present invention; and
  • is a front view of a patterning device used in according to one embodiment of the present invention.
    • Detailed Description of the Preferred Embodiments
  • The present invention will be further described by using embodiments and referring to the accompanying drawings. The same or similar accompanying drawing reference signs used in the description refer to the same components. The following description of embodiments of the present invention by referring to the accompanying drawings is intended to explain the overall invention concept of the present invention, and should not be interpreted as a limitation to the present invention.
  • Furthermore, in the detailed description below, to facilitate explanation, many specific details are expounded for a comprehensive understanding of the embodiments of the present disclosure. However, it is obvious that one or more embodiments may also be implemented without these specific details. In other cases, any known structures and devices are graphically embodied to simplify the accompanying drawings.
  • Referring to Figs. 1-2, the projection device 100 according to an embodiment of the present invention comprises a housing 110, and a light source 120, a first lens 130, a forming plate 150, a patterning device 140, a motor 160 and a second lens 170, which are accommodated in the housing 110.
  • The first lens 130 is used to form parallel beams 121 from light emitted from the light source 120 located on a substrate 180. The housing 110 has a light outlet part 112 formed in the side wall 111 of the housing 110 (namely, a hole that allows light to pass through). The patterning device 140 is located downstream of the parallel beams 121 emergent from the first lens 130. The patterning device 140 has at least one first light-transmitting area 141 and is configured to be driven by the motor 160 to rotate around the centre of the patterning device 140 so that the at least one first light-transmitting area 141 is rotated to a light path where the parallel beams 121 pass through the light outlet part 112, thus forming dynamically changing projection patterns to meet diverse traffic demands and accurately convey complex traffic information. In the embodiment shown in , the motor 160 has a drive shaft 161 and the drive shaft 161 passes through the forming plate 150 and is connected to the patterning device 140 to drive the patterning device 140 to rotate.
  • Referring to , the forming plate 150 is arranged between the first lens 130 and the patterning device 140 and is provided with a forming hole 151 so that the parallel beams 121 pass through the forming hole 151 and irradiate the patterning device 140. The forming hole 151 has a length extending along the rotation direction D of the patterning device 140 to form the parallel beams 121. The formed parallel beams 121 irradiate the patterning device 140 to be patterned by the patterning device 140 to form expected dynamic patterns.
  • In the embodiment shown in , the patterning device 140 is constructed to be a light modulation film and has two first light-transmitting areas 141 and four second light-transmitting areas 142. All the light-transmitting areas 141 and 142 are constructed to be hollowed-out patterns. The shadow part on the patterning device 140 indicates a non-light-transmitting area.
  • In a specific embodiment, the first light-transmitting areas 141 have a shape that extends along the circumference of the patterning device 140. Specifically, the length of the first light-transmitting areas 141 along the rotation direction D of the patterning device 140 is greater than the length of the forming hole 151 so that the formed parallel beams 121 projected to each first light-transmitting area 141 can be uninterruptedly transmitted through the patterning device 140 to generate continuously changing dynamic patterns and form the corresponding patterned beams during the rotation of the patterning device 140. In other embodiments, the first light-transmitting areas 141 can also be of other shapes such as graphics, letters, and logos.
  • In a specific embodiment, all the second light-transmitting areas 142 are of roughly rectangular shape and the length of the second light-transmitting area 142 along the rotation direction D of the patterning device 140 is smaller than the length of the forming hole 151 so that the formed parallel beam 121 projected to each second light-transmitting area 142 can be intermittently transmitted through the patterning device 140 to generate discontinuously changing dynamic patterns and form the corresponding patterned beams during the rotation of the patterning device 140. The second light-transmitting areas 142 can also be of other shapes such as graphics, letters, and logos.
  • In this way, combinations of continuously and discontinuously changing dynamic patterns can be generated through the patterning device 140 in the embodiment shown in . For example, such a combination of patterns can be used to generate patterns such as "welcome", "byebye" and "reversible". In the application field of electric vehicles, such a combination of patterns can also be used to generate patterns, for example, to express the charging mode.
  • Those skilled in the art should understand that the present invention is not limited to this and that the shape, quantity and distribution of the light-transmitting areas 141 and 142 can be set according to actual requirements to obtain expected patterns.
  • The patterned beams are emergent from the housing 110 through the second lens 170 disposed at the light outlet part 112 of the housing 110. The second lens 170 can be a collimating lens that collimate the emergent patterned beams.
  • The projection device 100 according to the present invention not only can be installed in a lighting and/or signaling device for a vehicle, but can also be used for any other appropriate application scenarios.
  • Those skilled in the art should understand that all the embodiments described above are exemplary. In addition, those skilled in the art can improve them. The structures described in various embodiments can be freely combined without a conflict in structure or in principle.
  • After the preferred embodiments of the present invention are described in detail, those skilled in the art should clearly understand that various variations and changes can be made without deviating from the protection scope and spirit of the accompanying claims and that the present invention is not limited to the mode of execution of the exemplary embodiments illustrated in the description either.
    •

Claims (10)

  1. A projection device (100), which is characterised by comprising:
    a housing (110), having a light outlet part (112);
    a light source (120), disposed in the housing (110) and configured to emit light;
    a first lens (130), disposed in the housing (110) and used to form parallel beams from light emitted by the light source (120);
    a patterning device (140), disposed in the housing (110) and located downstream of the parallel beams emergent from the first lens (130), the patterning device (140) having at least one first light-transmitting area (141) and being configured to rotate around its centre so that the at least one first light-transmitting area (141) is rotated to a light path where the parallel beams pass through the light outlet part (112).
  2. The projection device (100) according to Claim 1, further comprising a forming plate located in the housing (110), the forming plate (150) being arranged between the first lens (130) and the patterning device (140) and provided with a forming hole (151) so that the parallel beams pass through the forming hole (151) and irradiate the patterning device (140), wherein the forming hole (151) has a length extending along a rotation direction of the patterning device (140).
  3. The projection device (100) according to Claim 2, characterised in that
    the length of the at least one first light-transmitting area (141) along the rotation direction is greater than the length of the forming hole (151).
  4. The projection device (100) according to Claim 2 or 3, characterised in that
    the patterning device (140) further has at least one second light-transmitting area (142), the length of the at least one second light-transmitting area (142) along the rotation direction being smaller than the length of the forming hole (151).
  5. The projection device (100) according to Claim 1, further comprising a motor (160) located in the housing (110), the motor (160) having a drive shaft (161), the drive shaft (161) being connected to the patterning device (140) to drive the patterning device (140) to rotate.
  6. The projection device (100) according to any one of Claims 1-3 and 5, further comprising a second lens (170), the second lens (170) being disposed at the light outlet part (112) of the housing (100).
  7. The projection device (100) according to Claim 4, characterised in that the at least one first light-transmitting area (141) and the at least one second light-transmitting area (142) are constructed to be a hollowed-out pattern.
  8. The projection device (100) according to any of Claims 1-3, 5 and 7, characterised in that the patterning device (140) is constructed to be a light modulation film.
  9. A lighting and/or signaling device, comprising the projection device (100) according to any of Claims 1-8.
  10. A vehicle, comprising the projection device (100) according to any one of Claims 1-8 or the lighting and/or signaling device according to Claim 9.
EP23739158.6A 2022-06-30 2023-06-30 Projection device, lighting and/or signaling device and vehicle Pending EP4548006A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202221696005.9U CN218240643U (en) 2022-06-30 2022-06-30 Projection devices, lighting and/or signaling equipment and vehicles
PCT/EP2023/068107 WO2024003391A1 (en) 2022-06-30 2023-06-30 Projection device, lighting and/or signaling device and vehicle

Publications (1)

Publication Number Publication Date
EP4548006A1 true EP4548006A1 (en) 2025-05-07

Family

ID=84674906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23739158.6A Pending EP4548006A1 (en) 2022-06-30 2023-06-30 Projection device, lighting and/or signaling device and vehicle

Country Status (3)

Country Link
EP (1) EP4548006A1 (en)
CN (1) CN218240643U (en)
WO (1) WO2024003391A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015221659A (en) * 2014-05-23 2015-12-10 日本電産コパル株式会社 Projection image cartridge, projector for vehicle with use of projection image cartridge, and vehicle or vehicle door equipped with projector for vehicle
CN203982063U (en) * 2014-06-26 2014-12-03 再兴电子(深圳)有限公司 Image rotating projection arrangement
CA2949845C (en) * 2015-12-04 2020-10-13 AGM Automotive, LLC Illumination device for projecting light in a predetermined illumination pattern on a surface
KR20190071524A (en) * 2017-12-14 2019-06-24 주식회사 에스엘미러텍 Puddle Lamp for Outside Mirror of Vehicle

Also Published As

Publication number Publication date
WO2024003391A1 (en) 2024-01-04
CN218240643U (en) 2023-01-06

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