WO2023207560A1 - 光学显示器及交通工具 - Google Patents

光学显示器及交通工具 Download PDF

Info

Publication number
WO2023207560A1
WO2023207560A1 PCT/CN2023/087172 CN2023087172W WO2023207560A1 WO 2023207560 A1 WO2023207560 A1 WO 2023207560A1 CN 2023087172 W CN2023087172 W CN 2023087172W WO 2023207560 A1 WO2023207560 A1 WO 2023207560A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
light
light source
positioning
optical display
Prior art date
Application number
PCT/CN2023/087172
Other languages
English (en)
French (fr)
Inventor
吴宇
刘渊恪
贾利锐
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023207560A1 publication Critical patent/WO2023207560A1/zh

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • 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

Definitions

  • the present application relates to the technical field of optical displays, and in particular to an optical display and a vehicle.
  • Optical displays refer to a type of equipment that uses optical imaging principles to obtain a large-screen visual experience in a small space. It can be widely used in projectors, head-up displays (HUD), vehicle displays, car lights, etc.
  • HUD head-up displays
  • vehicle displays car lights, etc.
  • optical components such as light source units and curved mirrors are first pasted to their respective frames and then fixed to the housing through the frames. Multiple transfers reduce the accuracy of the optical display's optical path system.
  • the embodiments of the present application provide an optical display and a vehicle that can improve the accuracy of the optical path system.
  • this application provides an optical display, including a housing, a light source unit, a transflective optical element, and a curved mirror.
  • the housing is provided with a first opening.
  • the light source unit is fixed on the housing and used to emit imaging light.
  • the transflective optical element is fixed on the housing and covers the first opening, and is used for transmitting and reflecting imaging light.
  • the curved mirror is fixed on the housing and used to reflect imaging light. The imaging light emitted by the light source unit is reflected to the curved mirror through the transflective optical element, and the curved mirror transmits the incident imaging light to the outside of the housing through the transflective optical element.
  • the light source unit, transflective optical elements and curved mirror are directly fixed on the same housing without other adapters (such as respective fixed frames), the number of components of the optical display is reduced, and the cost of the optical display is reduced.
  • the difficulty in assembling the display improves the assembly accuracy of the optical display and simplifies the structure of the optical display, which in turn helps improve the accuracy of the optical display's optical path system and improves the output quality of the imaging light of the optical display.
  • the housing includes a main housing and a mounting part.
  • the first opening is provided on the main housing, and the light source unit and the curved mirror are both fixed on the main housing.
  • the installation part is protrudingly provided on the outer surface of the main housing.
  • the transflective optical element is fixedly connected to the installation part and located outside the main housing.
  • the internal light path of the optical display is located in the inner cavity of the main housing, and the installation part for fixing the transflective optical element is set outside the main housing, so that the installation part has no impact on the internal light path of the optical display.
  • the installation part The structure does not affect the transmission of imaging light inside the main housing, reduces the generation of reflected stray light in the optical display, and improves the imaging light output quality of the optical display.
  • the installation part includes an installation bottom wall and a protective flange.
  • the installation bottom wall is protruding on the outside of the main housing and is arranged along the peripheral contour of the first opening.
  • the transflective optical element is fixed on the installation bottom wall.
  • a protective flange is protruding from the installation bottom wall, and the protective flange surrounds at least part of the edge of the transflective optical element.
  • the edge of the transflective optical element is covered by the protective flange to protect the transflective optical element, reduce the possibility of damage to the transflective optical element due to scratches, and thereby extend the service life of the transflective optical element.
  • transflective optical elements are made of transflective glass
  • the edges of the transflective optical elements are usually sharp.
  • a protective flange By covering at least part of the edges of the transflective optical elements with a protective flange, it can reduce the user from being scratched by the edges of the transflective optical elements. or the possibility of cuts, improving the safety and reliability of optical displays.
  • the installation bottom wall is provided with an installation surface, and the installation surface is arranged parallel to the transflective optical element.
  • the installation surface is arranged parallel to the transflective optical element, and the position of the installation surface corresponds to the position of the transflective optical element in the optical path of the optical display.
  • the installation surface can position the transflective optical element along the normal direction of the installation surface, improve the positioning accuracy of the transflective optical element by the housing, and improve the output quality of imaging light in the optical display.
  • the housing is provided with a mounting surface, the housing further includes a fixing post, the fixing post is protruding from the mounting surface, and the light source unit includes a connecting A light-emitting area and a non-light-emitting area are provided, the light-emitting area is used to emit imaging light, and the light source unit of the non-light-emitting area is fixedly connected to the fixed column.
  • the light source unit in the non-luminous area is fixedly connected to the fixed column.
  • the fixed column can be fixedly penetrated through the light source unit in the non-luminous area, or can be sequentially penetrated through the light source unit in the non-luminous area and the light source unit in the non-luminous area through fasteners such as screws.
  • the fastener is fixedly connected to the fixed column, and the light source unit is fixedly connected to the fixed column.
  • the light source unit and the mounting surface can be placed closely together or at intervals.
  • the light source unit Since the light source unit is fixedly connected to the fixed column through the non-luminous area, the output of the imaging light of the light source unit will not be affected, and the connection stability between the light source unit and the housing is also enhanced.
  • the non-light-emitting area is provided with a positioning hole; the housing further includes a light source positioning post protruding on the mounting surface, and the light source positioning post passes through in the positioning hole to position the light source unit.
  • the positioning hole includes a first positioning hole and a second positioning hole
  • the light source positioning post includes a first light source positioning post and a second light source positioning post
  • the third light source positioning post includes a first light source positioning post and a second light source positioning post.
  • a light source positioning post is passed through the first positioning hole
  • the second light source positioning post is passed through the second positioning hole; in the arrangement direction of the first positioning hole and the second positioning hole, the The length of the second positioning hole is greater than the length of the first positioning hole.
  • the positioning holes match the shapes of the light source positioning posts, and the preset spacing (design spacing) between the two positioning holes is the same as the preset spacing between the two light source positioning posts.
  • the positioning holes are round.
  • Shape, the light source positioning column is a cylinder.
  • the length of the first positioning hole is greater than the length of the second positioning hole, and there is an assembly margin when the first positioning hole light source unit is assembled on the housing. That is, when there is a certain difference between the actual distance between the first light source positioning column and the second light source positioning column and the preset distance, the light source unit can also be assembled on the housing. For example, when the actual distance between the first light source positioning post and the second light source positioning post is larger than the preset distance, the first light source positioning post can still be installed into the first positioning hole, and the second light source positioning post can still be installed into the third light source positioning post. Two positioning holes, thus reducing the manufacturing accuracy requirements and manufacturing costs of the housing and optical display.
  • the light source unit is arranged parallel to the mounting surface.
  • the mounting surface is arranged parallel to the light source unit, and the position of the mounting surface corresponds to the position of the light path of the light source unit in the optical display.
  • the mounting surface can face the light source unit along the mounting surface. Positioning in the normal direction, improving the positioning accuracy of the housing to the light source unit, and improving the imaging in the optical display The quality of the light output.
  • the housing is provided with a positioning surface, and the curved mirror is fixedly connected to the positioning surface;
  • the curved mirror includes a mirror body and a connecting portion protruding from the mirror body, and the connecting portion is in contact with and fixedly connected to the positioning surface.
  • the connecting portion protruding from the mirror body can also be called a "hanging ear".
  • the positioning surface can position the curved mirror along the normal direction of the positioning surface, and the positioning column can position the connection part, which improves the assembly accuracy and efficiency of the optical display and facilitates the installation of the curved mirror. Assembly of housing.
  • the mirror body includes a first edge, a second edge, a third edge and a fourth edge, and the first edge and the second edge are along a first direction.
  • the third edge and the fourth edge are arranged oppositely, the first direction is different from the second direction, and the first edge, the second edge and the third edge are all convex.
  • Positioning the curved mirror in the first direction (such as the X direction) and the second direction (such as the Y direction) is beneficial to improving the assembly accuracy between the curved mirror and the housing.
  • the housing further includes a positioning post protruding from the positioning surface, and the positioning post is passed through the connection part to help limit the movement of the curved mirror relative to the housing. .
  • the housing is provided with a positioning groove
  • the curved mirror includes a mirror body and a positioning convex portion protruding from an edge of the mirror body. The portion is accommodated in the positioning groove to reduce the possibility of the curved mirror moving relative to the housing.
  • the housing includes a first part and a second part connected and arranged, the light source unit is fixed on the first part, and the curved mirror is fixed on the second part. part, the second part enclosing at least part of the first opening.
  • the light source unit Since the light source unit is installed and accommodated in the first part, and the transflective optical element and the curved mirror are located in the second part, it is difficult for the user to see the light source unit located in the first part through the transflective optical element when viewing the optical display, which is equivalent to the light source unit. Hidden in the first part, it is helpful to improve the user experience.
  • the light source unit has a light-emitting surface
  • the transflective optical element has a reflective surface
  • the light-emitting surface is inclined relative to the reflective surface.
  • the first opening includes a first installation edge and a second installation edge that are oppositely arranged;
  • the light source unit includes a light-emitting area, and the light-emitting area includes an oppositely arranged
  • the edge of the first light-emitting area and the edge of the second light-emitting area; the first point on the first installation edge and the second point on the edge of the second light-emitting area are located on the connecting line, and the edge of the first light-emitting area
  • the second installation edge is located on the second side of the connecting line, and the user's eyes are located on the first side of the connecting line when viewing the optical display.
  • the user's eyes and the edge of the first light-emitting area are located on the same side of the connection line, so that the user cannot see the bright spot of the light source unit, thereby preventing privacy and thereby improving the user's experience.
  • the housing is further provided with a second opening communicated with the first opening, the curved mirror is located in the second opening, and the optical display further includes a cover , the cover body is detachably connected to the housing, and the cover body covers the second opening.
  • the arrangement of the second opening facilitates the installation of the curved mirror into the housing or the removal of the curved mirror from the housing, that is, the assembly and disassembly of the curved mirror and the housing.
  • the arrangement of the cover is conducive to closing the second opening and reducing dust from entering the housing.
  • the present application provides a vehicle, including the optical display as described above, and the optical display is installed on the vehicle.
  • the optical display can be integrated into the head-up display, and the head-up display can project navigation information, instrument information, etc. in the driver's front field of view, thus avoiding the driver's need to lower his head. Switching your gaze back and forth between the image and the road when viewing this information reduces crisis response time and improves driving safety.
  • the optical display can be integrated into the vehicle display.
  • the vehicle display can be installed on the back of the seat or in the passenger position, etc., and the user can watch videos through the optical display, thereby improving the safety of the vehicle. entertainment features.
  • optical displays could be integrated into car lights.
  • Figure 1 is a schematic diagram of an application scenario of a vehicle provided by an embodiment of the present application
  • Figure 2a is a cross-sectional view of an optical display provided by an embodiment of the present application.
  • Figure 2b is a three-dimensional exploded schematic view of the optical display shown in Figure 2a;
  • Figure 3 is a schematic diagram of an imaging principle of a virtual image of an optical display provided by an embodiment of the present application.
  • Figure 4 is a three-dimensional schematic view of the housing of an optical display provided by an embodiment of the present application.
  • Figure 5 is a cross-sectional view of the housing of an optical display provided by an embodiment of the present application.
  • Figure 6 is an enlarged schematic diagram of part of area A in Figure 2a;
  • Figure 7 is an enlarged schematic diagram of part of area B in Figure 2a;
  • Figure 8a is a schematic diagram of the housing of an optical display provided by an embodiment of the present application.
  • Figure 8b is a schematic three-dimensional view of the housing of the optical display provided by an embodiment of the present application from another perspective;
  • Figure 9 is a schematic plan view of the housing and the light source unit assembled together according to an embodiment of the present application.
  • Figure 10a is a schematic diagram of the distribution of fixing posts and positioning posts on the mounting surface provided by an embodiment of the present application.
  • Figure 10b is a schematic three-dimensional view of the housing provided by an embodiment of the present application from another perspective;
  • Figure 11 is a three-dimensional exploded schematic diagram of a housing and a curved mirror provided by an embodiment of the present application;
  • Figure 12 is a schematic plan view of a curved mirror provided by an embodiment of the present application.
  • Figure 13 is a schematic diagram of the housing and the curved mirror assembled together according to an embodiment of the present application.
  • Figure 14 is an enlarged schematic diagram of part of area C shown in Figure 13;
  • Figure 15a is a schematic plan view of a possible structure of a curved mirror provided by an embodiment of the present application.
  • Figure 15b is a schematic plan view of a possible structure of a curved mirror provided by an embodiment of the present application.
  • Figure 15c is a schematic plan view of a possible structure of a curved mirror provided by an embodiment of the present application.
  • Figure 15d is a schematic plan view of a possible structure of a curved mirror provided by an embodiment of the present application.
  • Figure 16 is a schematic three-dimensional assembly diagram of the housing and the curved mirror provided by an embodiment of the present application from another perspective;
  • Figure 17 is another cross-sectional view of an optical display provided by an embodiment of the present application.
  • Figure 18a is a partial structural schematic diagram of a vehicle provided by an embodiment of the present application.
  • Figure 18b is a schematic diagram of a possible implementation of an optical display integrated into a head-up display
  • FIG 19 is a functional schematic diagram of the vehicle provided by this application.
  • Figure 20 is a schematic diagram of a possible application scenario of the optical display provided by an embodiment of the present application.
  • FIG. 21 is a schematic diagram of another possible application scenario of the optical display provided by an embodiment of the present application.
  • An embodiment of the present application provides a vehicle 1000.
  • the vehicle 1000 in the embodiment of the present application may be a known vehicle, such as a car, an airplane, a ship, or a rocket, or may be a new vehicle emerging in the future. tool.
  • the car may be an electric car, a fuel car, or a hybrid car, such as a pure electric car, an extended-range electric car, a hybrid electric car, a fuel cell car, a new energy car, etc. This application does not specifically limit this.
  • the vehicle 1000 includes a cabin 200 and seats installed in the cabin 200 .
  • the seats include a first seat 300 and a second seat 500, which are used for passengers to sit on.
  • the first seat 300 is a front seat provided in the cockpit 200 .
  • the second seat 500 is a rear seat arranged behind the first seat 300 and is used for passengers to sit on.
  • the first seat 300 may not be a front seat.
  • the first seat 300 includes a seat body 301 and an optical display 10 installed on the seat body 301 .
  • the occupant who sits on the second seat 500 and views the optical display 10 is called a viewer.
  • the optical display 10 can also be installed at the co-pilot position of the vehicle 1000 (as shown in Figure 1), that is, installed on the instrument panel (Instrument Panel, IP) of the vehicle.
  • An embodiment of the present application provides an optical display 10 for outputting imaging light carrying image information.
  • the optical display 10 includes a housing 1 , a light source unit 3 , a transflective optical element 5 , a curved mirror 7 , a connecting component 8 and a cover 9 .
  • the light source unit 3 is fixed on the housing 1 and is used for emitting imaging light.
  • the transflective optical element 5 is fixed on the housing 1 for transmitting and reflecting imaging light.
  • the curved mirror 7 is fixed on the housing 1 through the connecting component 8 and is used to reflect the imaging light.
  • the cover 9 is fixed on the housing 1 and covers the curved mirror 7 to protect the curved mirror 7 and reduce dust from entering the housing 1 .
  • the imaging light emitted by the light source unit 3 is reflected to the curved mirror 7 through the transflective optical element 5 , and the imaging light reflected by the curved mirror 7 is transmitted to the outside of the housing 1 after passing through the transflective optical element 5 .
  • the light source unit 3 may be called an image source.
  • the transflective optical element 5 can reflect the imaging light emitted by the light source unit 3 to the curved mirror 7 and transmit the imaging light reflected by the curved mirror 7 .
  • optical components such as light sources and curved mirrors are first fixed to their respective fixed frames and then assembled into the housing.
  • the optical display has a large number of components.
  • the number of steps of the optical display 10 is reduced.
  • the number of components reduces the assembly difficulty of the optical display 10, improves the assembly accuracy of the optical display 10, and simplifies the structure of the optical display 10, which is beneficial to improving the accuracy of the optical path system of the optical display 10 and improving the imaging light of the optical display 10 of output quality.
  • the curved mirror 7 can transmit the imaging light to the outside of the housing 1 through the transflective optical element 5, and then enter the eye 80.
  • the eye 80 sees an enlarged virtual image.
  • the virtual image can be viewed by the eyes without being received by the light curtain.
  • the light source unit 3 emits imaging light L with a certain divergence angle, which is reflected by the transflective optical element 5 and the curved mirror 7 before entering the eye 80.
  • the brain will reflect the light based on the experience of "light propagates along a straight line". By tracing in the opposite direction, it is considered that the intersection point of the imaging light L extending in the opposite direction is the object point, that is, the virtual image point.
  • the position where the eye 80 is located may be called the eyebox position.
  • the curved mirror 7 can project the imaging light through the transflective optical element 5 onto a light curtain (not shown) located outside the housing 1.
  • the light curtain can be a wall, a projection screen, or a wooden board. etc. This application does not limit the specific form of the light curtain.
  • the housing 1 is an integrally formed housing. In other embodiments of the present application, the housing 1 may be assembled from two or more parts.
  • the housing 1 includes a main housing 11 and a mounting portion 13 .
  • the main housing 11 includes a first part 1101 (which can be regarded as the upper part of the housing 1 ) and a second part 1103 (which can be regarded as the lower part of the housing 1 ).
  • the cavity enclosed by the first part 1101 and the second part 1103 includes a first opening 103 (as shown in FIG. 5 ) and a second opening 105 (which can be called front and rear openings).
  • the first opening 103 is in communication with the inner cavity of the main housing 11
  • the second opening 105 is in communication with the inner cavity of the main housing 11 .
  • the first opening 103 is used to transmit imaging light.
  • the second opening 105 is used to assemble the curved mirror 7 .
  • the light source unit 3 is fixedly received in the first part 1101.
  • the transflective optical element 5 and the curved mirror 7 are located in the second part 1103.
  • the transflective optical element 5 and the curved mirror 7 are located in the second part 1103, making it difficult for the user to see through the transflective optical element 5 located in the first part when viewing the optical display 10
  • the light source unit 3 of 1101 is equivalent to the light source unit 3 being hidden in the first part 1101.
  • the stray light of the light source unit 3 will not directly transmit the transflective optical element 5 and reach the human eye, which is beneficial to improving the user experience and also improving the optical display. 10 image quality.
  • the first part 1101 includes a first side wall 111 and a second side wall 112 that are bent and connected.
  • the first side wall 111 is provided with a mounting surface 1113 facing the inner cavity of the main housing 11 for connecting with the light source unit 3 (installing the light source unit 3).
  • the second part 1103 includes a third side wall 113 , a fourth side wall 114 and a fifth side wall 115 .
  • the third side wall 113 is fixedly connected between the fourth side wall 114 and the fifth side wall 115 .
  • a positioning groove 106 is formed on the inner wall of the third side wall 113 facing the inner cavity of the main housing 11 for positioning the curved mirror 7 .
  • the fourth side wall 114 is opposite to the fifth side wall 115 .
  • the first side wall 111 is located between the fourth side wall 114 and the fifth side wall 115 .
  • the second side wall 112 is located between the fourth side wall 114 and the fifth side wall 115 .
  • the third side wall 113 is located between the fourth side wall 114 and the fifth side wall 115 .
  • the first side wall 111 , the second side wall 112 , the third side wall 113 , the fourth side wall 114 and the fifth side wall 115 together form an inner cavity of the main housing 11 .
  • the second side wall 112 , the third side wall 113 , the fourth side wall 114 and the fifth side wall 115 together form the first opening 103 .
  • the first side wall 111 , the third side wall 113 , the fourth side wall 114 and the fifth side wall 115 together form the second opening 105 .
  • the mounting portion 13 is protruding from the outer surface of the main housing 11 for fixing the transflective optical element 5 .
  • the internal light path of the optical display 10 is located inside the main housing 11, and the mounting portion 13 for fixing the transflective optical element 5 is provided outside the main housing 11, so that the mounting portion 13 has no impact on the internal light path of the optical display 10.
  • the installation portion 13 does not affect the transmission of imaging light inside the main housing 11 , reduces the generation of reflected stray light in the optical display 10 , and improves the imaging light output quality of the optical display 10 .
  • the mounting portion 13 includes a mounting bottom wall 132 and a protective flange 134 .
  • the mounting bottom wall 132 is protruding from the outside of the main housing 11 , and a mounting surface 1320 is provided on the mounting bottom wall 132 for fixed connection with the transflective optical element 5 .
  • the installation bottom wall 132 is protruding on the second side wall 112 , the third side wall 113 , the fourth side wall 114 and the fifth side wall 115 , and the installation bottom wall 132 is along the periphery of the first opening 103 Contour settings.
  • the installation surface 1320 is inclined relative to the installation surface 1113 (shown in FIG. 5 ).
  • the transflective optical element 5 is fixedly connected to the mounting surface 1320 of the bottom wall 132 .
  • the transflective optical element 5 is arranged parallel to the installation surface 1320 .
  • the installation surface 1320 is arranged parallel to the transflective optical element 5.
  • the position of the installation surface 1320 corresponds to the position of the transflective optical element 5 in the optical path of the optical display 10.
  • the mounting surface 1320 can position the transflective optical element 5 along the normal direction of the mounting surface 1320, thereby improving the positioning accuracy of the transflective optical element 5 by the housing 1, and improving the imaging light in the optical display 10. Output quality.
  • the transflective optical element 5 is bonded to the installation bottom wall 132 through colloid.
  • the colloid can be double-sided tape or glued.
  • the transflective optical element 5 may also be arranged non-parallel to the installation surface 1320 .
  • the inner wall of the housing 1 is provided with a mounting surface 1320, and the transflective optical element 5 can also be located on Inside the housing 1.
  • the protective flange 134 is protruding from the mounting bottom wall 132 and is provided along the periphery of the mounting bottom wall 132 to protect the edge of the transflective optical element 5 .
  • the protective flange 134 is disposed around the transflective optical element 5 to surround the transflective optical element 5 .
  • the protective flange 134 is protruding on part of the periphery of the installation bottom wall 132 to protect the edge of the transflective optical element 5 in sections or regions, that is, the protective flange 134 protects the transflective optical element 5 At least part of the edge of the optical element 5.
  • the protective flange 134 surrounds at least part of the edge of the transflective optical element 5 , the transflective optical element 5 is protected and the possibility of damage caused by scratching of the transflective optical element 5 is reduced, thereby extending the service life of the transflective optical element 5 service life.
  • the protective flange 134 surrounding at least part of the edge of the transflective optical element 5 can also reduce the possibility of the user being scratched or cut by the edge of the transflective optical element 5 and improve the safety and reliability of the optical display 10 .
  • the mounting part 13 can be omitted, and the transflective optical element 5 can be directly fixed on the main housing 11 , and the transflective optical element 5 can also be accommodated inside the main housing 11 .
  • the housing 1 also includes a fixing post 14 and a light source positioning post 15 protruding from the mounting surface 1113 .
  • the fixing column 14 is used for fixed connection with the light source unit 3 .
  • the light source unit 3 can be arranged parallel to the mounting surface 1113, and the position of the mounting surface 1113 corresponds to the position of the light source unit 3 in the optical path of the optical display 10.
  • the mounting surface 1113 can Positioning the light source unit 3 along the normal direction of the mounting surface 1113 improves the positioning accuracy of the housing 1 to the light source unit 3 and improves the output quality of the imaging light in the optical display 10 .
  • the light source unit 3 may also be arranged non-parallel to the mounting surface 1113 .
  • the light source positioning column 15 is used to position the light source unit 3 .
  • the housing 1 also includes a positioning portion 16 provided on the inner wall of the main housing 11 for positioning the curved mirror 7 .
  • the number of positioning parts 16 is multiple, and the multiple positioning parts 16 are provided on the inner wall of the main housing 11 .
  • Positioning portions 16 are formed on the inner walls of the first side wall 111 , the fourth side wall 114 and the fifth side wall 115 facing the inner cavity of the main housing 11 .
  • the positioning portion 16 has a generally groove-shaped structure.
  • the positioning portion 16 on the first side wall 111 is a groove-shaped structure provided on the first side wall 111 and located in the main housing 11, and the positioning portion 16 on the fifth side wall 115 is The groove structure is recessed in the fifth side wall 115 and located in the main housing 11 .
  • Each positioning portion 16 includes a first positioning surface 162 and a side surface 164 .
  • the first positioning surface 162 is provided toward the second opening 105 for fitting with the curved mirror 7 to improve the assembly accuracy between the curved mirror 7 and the housing 1 .
  • the positioning part 16 can position the curved mirror 7.
  • a number of protruding columns can be protruded on the inner wall of the main housing 11, and a number of protruding columns can form a positioning part.
  • the positioning portion 16 can limit the position of the curved mirror 7 on the housing 1.
  • the normal direction of the first positioning surface 162 is the same as the normal direction of the second opening 105 , and the first positioning surfaces 162 of the multiple positioning parts 16 can be located on the same plane. In other embodiments of the present application, the first positioning surfaces 162 of the plurality of positioning parts 16 may or may not be parallel to each other. In other embodiments of the present application, the normal direction of the first positioning surface 162 and the normal direction of the second opening 105 may be different.
  • the housing 1 also includes a positioning post 18 protruding from the first positioning surface 162 for positioning the curved mirror 7 .
  • the housing 1 also includes a connecting post 19 protruding from the first positioning surface 162 for fixed connection with the curved mirror 7 .
  • the housing 1 may not be an integrally formed housing.
  • the structure of the housing 1 is not limited.
  • the first opening 103 and the second opening 105 are located on the second part 1103.
  • the housing 1 can fix the light source unit 3, the transflective optical element 5 and the curved mirror. 7. Enable the optical display 10 to output imaging light.
  • the second opening 105 can be omitted, and the curved mirror 7 is fixedly received in the housing 1 .
  • the optical display 10 since the light source unit 3, the transflective optical element 5 and the curved mirror 7 are integrated on the housing 1 to form a whole, the relative positions between the light source unit 3, the transflective optical element 5 and the curved mirror 7 are Determined by optical principles, the display effect of the optical display 10 is guaranteed.
  • the light source unit 3 adopts liquid crystal display (LCD) imaging technology.
  • LCD imaging utilizes the principle of the photoelectric effect of liquid crystal.
  • Liquid crystal molecules change their arrangement state under the influence of an external electric field.
  • Liquid crystal molecules in different arrangements can control the light transmittance. For example, there are liquid crystal molecules in the middle of two polarizers whose polarization directions are perpendicular to each other. When no electric field is applied, the liquid crystal molecules can rotate the polarization direction of the linearly polarized light passing through the first polarizer by 90°.
  • the light transmits at its maximum rate through the second polarizer; when an electric field is applied, the arrangement state of the liquid crystal molecules changes, the rotation angle of the polarized light also changes, and the intensity of the light passing through the second polarizer weakens.
  • Each pixel of the LCD display is composed of three primary colors, and the display of color images is achieved by controlling the intensity of the three primary colors.
  • This application does not limit the type of light source of the light source unit 3.
  • the light source unit 3 can also use digital light processing (DLP) technology, laser scanning projection, etc.
  • DLP digital light processing
  • the light source unit 3 includes a light-emitting area 301 and a non-light-emitting area 302 .
  • the light-emitting area 301 is used to emit imaging light.
  • the non-light-emitting area 302 may be the frame of the light source unit 3 .
  • the non-luminous area 302 is fixedly connected to the fixed column 14 .
  • the non-light-emitting area 302 is arranged around the light-emitting area 301, and the non-light-emitting area 302 is provided with fastening holes 31.
  • the number of fastening holes 31 corresponds to the number of fixing posts 14 .
  • the number of fastening holes 31 is four, and the four fastening holes 31 are distributed at the four corners of the light source unit 3 .
  • the number of fixed posts 14 is four.
  • the fixing post 14 is a screw post, and the fixing post 14 is provided with threaded holes that match the screws. After the screws are passed through the fastening holes 31, they are then fixed and passed through the threaded holes of the fixing post 14, so that the light source unit 3 can be fixed on fixed on column 14.
  • This application does not limit the shape of the light source unit 3.
  • it can be circular, irregular, etc., and the light source unit 3 can emit imaging light.
  • the fixing post 14 can be fixedly inserted into the fastening hole 31 .
  • the non-light-emitting area 302 is provided with a positioning hole 33 for passing the light source positioning post 15 to position the light source unit 3 on the housing 1 .
  • the positioning hole 33 includes a first positioning hole 332 and a second positioning hole 334.
  • the light source positioning post 15 includes a first light source positioning post 152 and a second light source positioning post 154.
  • the first light source positioning post 152 passes through
  • the second light source positioning post 154 is disposed in the first positioning hole 332 and the second light source positioning post 154 is disposed in the second positioning hole 334 .
  • the length of the first positioning hole 332 is greater than the length of the second positioning hole 334.
  • the second positioning hole 334 is a round hole
  • the first positioning hole 332 is An elongated hole whose length in the first direction is greater than the diameter of the second positioning hole 334 .
  • the positioning holes 33 match the shapes of the light source positioning posts 15, and the preset spacing (design spacing) between the two positioning holes 33 is the same as the preset spacing between the two light source positioning posts 15, for example,
  • the positioning hole 33 is circular, and the light source positioning post 15 is a cylinder.
  • manufacturing errors inevitably occur in practice, resulting in an error between the actual spacing between the light source positioning posts 15 and the preset spacing.
  • the light source positioning post 15 of the light source unit 3 may not be installed into the corresponding positioning hole 33 .
  • the length of the first positioning hole 332 is greater than the length of the second positioning hole 334.
  • the first positioning hole 332 is used for the light source unit 3 to be assembled in the housing 1 There is an assembly margin when assembling, that is, when there is a certain difference between the actual distance between the first light source positioning post 152 and the second light source positioning post 154 and the preset distance, the light source unit 3 can also be assembled on the housing 1 .
  • the first light source positioning post 152 can still be installed into the first positioning hole 332 and the second light source positioning post 154
  • the second positioning hole 334 can still be installed, thus reducing the manufacturing accuracy requirements and manufacturing costs of the housing 1 and the optical display 10 .
  • the fixing column 14, the first light source positioning column 152, and the second light source positioning column 154 can be omitted, and the light source unit 3 can be directly fixed on the mounting surface 1113 of the first side wall 111.
  • This application There is no limitation on how the light source unit 3 is fixed to the housing 1.
  • the light source unit 3 can omit the non-light-emitting area 302, the light-emitting area 301 of the light source unit 3 is pasted on the first side wall 111 through glue, and the light source unit 3 covers the first side. Wall 111.
  • the light source unit 3 can also be fixed on the outside of the housing 1, that is, the mounting surface 1113 can be provided on the outer surface of the housing 1.
  • a light-transmitting area can be provided on the side wall of the housing 1, The imaging light emitted from the light source unit 3 enters the inner cavity of the housing 1 through the light-transmitting area.
  • the light-transmitting area can be a through hole or a transparent area.
  • the light-emitting area 301 includes a first light-emitting area edge 3011 and a second light-emitting area edge 3013 that are oppositely arranged.
  • the first light-emitting area edge 3011 is provided close to the light-emitting area 301.
  • the second light-emitting area edge 3013 is provided at an end of the light-emitting area 301 away from the first opening 103 .
  • the imaging light L includes the imaging light L1 and the imaging light L2.
  • the two imaging lights define the divergence angle of the light emitted by the light source unit 3. Among them, the imaging light L1 is emitted from the edge 3011 of the first light-emitting area, and the imaging light L2 is emitted from the edge 3013 of the second light-emitting area.
  • the light-emitting area 301 of the light source unit 3 has a light-emitting surface, and the transflective optical element 5 has a reflective surface.
  • the light-emitting surface of the light source unit 3 is tilted relative to the reflective surface of the transflective optical element 5. Without the use of other optical elements, the imaging light emitted from the light-emitting surface It can be directly incident on the transflective optical element 5 , thus simplifying the internal light path of the optical display 10 and the structure of the optical display 10 .
  • the first opening 103 includes a first installation edge 1031 and a second installation edge 1033 that are oppositely arranged.
  • the first installation edge 1031 is located on the second side wall 112 away from the second opening 105
  • the second installation edge 1033 is located on the edge of one end of the third side wall 113 away from the second opening 105 .
  • the first point on the first installation edge 1031 and the second point on the second light emitting area edge 3013 are located on the connecting line M.
  • the first light emitting area edge 3011 is located on the first side of the connection line M
  • the second installation edge 1033 is located on the second side of the connection line M.
  • the eyes 80 are located on the first side where the first installation edge 1031 is located, and the eyes 80 are located above the connecting line M, so that the eyes 80 will not directly see the light emitting light of the light source unit 3 during normal viewing.
  • Area 301 i.e., bright spot
  • the first installation edge 1031 included in the first opening 103 can be called the upper edge of the first opening 103
  • the second installation edge 1033 can be called the lower edge of the first opening 103
  • the first light-emitting area edge 3011 of the light-emitting area 301 may be called the upper edge of the light-emitting area 301
  • the second light-emitting area edge 3013 may be called the lower edge of the light-emitting area 301 .
  • the transflective optical element 5 is an optical element capable of transmitting part of the incident light incident on the transflective optical element 5 and reflecting part of the incident light.
  • a transflective optical element can transmit 50% of the incident light, and a transflective optical element can reflect 50% of the incident light; or, a transflective optical element can transmit 30% of the incident light, and a transflective optical element can reflect 70% of the incident light.
  • the proportion of the transflective optical element 5 that transmits the incident light to the total incident light can be selected according to needs.
  • the material of the transflective optical element 5 can be glass or the like.
  • the curved mirror 7 is a free-curved mirror that matches the requirements of optical imaging.
  • the surface shape of optical elements used in traditional optical design is a standard spherical surface, which generally requires multiple spherical mirrors to correct aberrations, resulting in a relatively complex optical structure and a large space occupied.
  • Aspherical surfaces generally refer to quadratic surfaces such as paraboloids, ellipsoids, involutes, and hyperboloids with an axis of rotation.
  • quadratic surfaces such as paraboloids, ellipsoids, involutes, and hyperboloids with an axis of rotation.
  • non-rotational aspherical surfaces such as off-axis aspherical surfaces.
  • one aspherical surface can usually replace two or more spherical surfaces to correct aberrations, thereby simplifying the optical structure and achieving miniaturization and lightweighting of the optical path.
  • free-form surfaces are optical structures with a more complex surface shape.
  • the curvature radii of each point on the surface are different, and the surface shape has a very high degree of freedom.
  • the free-form surface can not only replace multiple aspherical surfaces to correct aberrations, but also maximize the optical quality and streamline the optical structure.
  • the optical free-form surface has a complex structure, high degree of freedom, and no clear expression definition. It is generally considered that an optical surface that does not have global rotational symmetry, has no unified optical axis, and has multiple curvature radii on the entire surface is an optical free-form surface.
  • the curved mirror 7 may also be a spherical reflector or an aspherical reflector, which is not limited in the present application.
  • the curved mirror 7 includes a mirror body 72 , a connecting part 74 and a positioning convex part 76 .
  • the connecting portion 74 is protrudingly provided on the mirror body 72 , and is received in the positioning portion 16 for mating with the positioning portion 16 and being fixedly connected.
  • the positioning protrusion 76 is protrudingly provided on the mirror body 72 , and the positioning protrusion 76 is received in the positioning groove 106 .
  • the mirror body 72 includes a first edge 722 , a second edge 724 , a third edge 726 and a fourth edge 728 .
  • the first edge 722 and the second edge 724 are arranged oppositely along a first direction (for example, the X direction shown in FIGS. 11 and 12 ).
  • the third edge 726 and the fourth edge 728 are arranged opposite to each other along a second direction (for example, the Y direction shown in FIGS. 11 and 12 ), and the first direction is different from the second direction.
  • the normal direction of the first positioning surface 162 is the third direction (the Z direction shown in FIGS. 11 and 12 ).
  • the third direction is different from the first direction, and the third direction is different from the second direction.
  • the first direction is perpendicular to the second direction
  • the first direction is perpendicular to the third direction
  • the second direction is perpendicular to the third direction.
  • the first edge 722 is provided on the side adjacent to the mirror body 72 and the fourth side wall 114
  • the second edge 724 is provided on the side adjacent to the mirror body 72 and the fifth side wall 115
  • the third edge 726 is provided on the side of the mirror body 72 .
  • 72 is located on the side adjacent to the first side wall 111
  • the fourth edge 728 is provided on the side of the mirror body 72 adjacent to the third side wall 113 .
  • the position of the light-emitting area 301 of the light source unit 3 is higher than the position of the curved mirror 7 and the transflective region.
  • the position of optical element 5 shown in Figures 1 and 3).
  • the number of connecting portions 74 is multiple. Each connecting portion 74 is correspondingly received in a positioning portion 16 and is fixedly connected to the first positioning surface 162 in the positioning portion 16 .
  • the first edge 722 , the second edge 724 , and the third edge 726 are all provided with connecting portions 74 , and each connecting portion 74 is correspondingly received in a positioning portion 16 .
  • Each connecting portion 74 is fixedly connected to the first positioning surface 162 in the positioning portion 16 through the connecting component 8 .
  • one connecting portion 74 is protruding from both the first edge 722 and the second edge 724
  • two connecting portions 74 are protruding from the third edge 726 .
  • the four connecting portions 74 are approximately located at the four corners of the mirror body 72 .
  • the cooperation between the connecting portion 74 on the first edge 722 , the connecting portion 74 on the second edge 724 , the connecting portion 74 on the third edge 726 and the corresponding positioning portion 16 can position the curved mirror 7 on the main housing. 11 on.
  • Each connecting portion 74 is also provided with a groove 742 penetrating the connecting portion 74 along the third direction for passing through the positioning post 18 .
  • Each positioning post 18 on the housing 1 is inserted into the groove 742 of a connecting portion 74 for positioning the connecting portion 74, which facilitates the assembly between the curved mirror 7 and the housing 1. The assembly accuracy and assembly efficiency of the optical display 10 are improved.
  • each connecting portion 74 facing the first positioning surface 162 is provided with a second positioning surface 740 (shown in FIG. 12 ) that resists or abuts the first positioning surface 162 .
  • the curved mirror 7 is provided with a reflective layer (such as a reflective coating) to form a reflective surface that reflects imaging light.
  • the reflective surface can be located on the side of the curved mirror 7 facing the second opening 105 , or the reflective surface can also be located on the curved mirror 7 away from the second opening 105 .
  • One side of the second opening 105 is the side facing the first opening 103 .
  • the second positioning surface 740 may be provided with a reflective layer or may not have a reflective layer.
  • the first positioning surface 162 is parallel to and resists the second positioning surface 740, thereby positioning the curved mirror 7 in the third direction and restricting the rotation of the curved mirror 7 around the first and second directions.
  • the second positioning surfaces 740 of the multiple connecting portions 74 are located on the same plane.
  • the first positioning surface 162 and the second positioning surface 740 may be arranged non-parallel, and the second positioning surfaces 740 of the plurality of connecting parts 74 may be parallel. setting or non-parallel setting.
  • the thermal expansion coefficients of curved mirrors and other mating parts of the optical display are usually different. This makes the curved mirror susceptible to being extruded by other mating parts and deformed when the ambient temperature changes greatly. .
  • the curved mirror and housing when the ambient temperature of the optical display is greater than the preset temperature (such as 70 degrees Celsius, etc.), the curved mirror and housing will deform due to thermal expansion, and the housing may squeeze the curved mirror. Once the curved mirror is deformed, the optical path of the imaging light reflected by the deformed part will be distorted, which will affect the imaging light output quality of the optical display.
  • the thermal expansion coefficient of the curved mirror 7 is different from the thermal expansion coefficient of the housing 1 .
  • the thermal expansion coefficient of the housing 1 there is a gap between the edges of the curved mirror 7 (including the first edge 722 , the second edge 724 , the third edge 726 , the fourth edge 728 and the edges of each connecting portion 74 ).
  • a gap 700 (shown in FIG. 14 ) is reserved for thermal expansion space between the curved mirror 7 and the housing 1 , thereby reducing the possibility of deformation of the curved mirror 7 due to extrusion, and improving the optical path stability of the optical display 10 .
  • the reserved gap 700 includes a first reserved gap 701 and a second reserved gap 702 .
  • the first reserved gap 701 is provided between the side surface 164 and the edge of the connecting part 74 to reserve space for thermal expansion between the connecting part 74 and the housing 1 .
  • the second reserved gap 702 is provided between the inner wall of the groove 742 of each connecting portion 74 and the corresponding positioning post 18 to reserve space for thermal expansion of the positioning post 18 and the connecting portion 74 .
  • the length of the mirror body 72 in the first direction is greater than the length of the mirror body 72 in the second direction, and the degree of thermal expansion of the curved mirror 7 in the first direction may be greater than the degree of thermal expansion in the second direction.
  • part of the inner wall of the groove 742 is in close contact with the corresponding positioning post 18 to reduce the possibility of deformation of the curved mirror 7 caused by thermal expansion and at the same time improve the positioning accuracy of the positioning part 16 to the connecting part 74 .
  • the length of the mirror body 72 in the first direction is greater than or equal to the length of the mirror body 72 in the second direction.
  • the positioning protrusion 76 is protruding from the fourth edge 728 of the mirror body 72 .
  • the positioning protrusion 76 is received in the positioning groove 106 and clamped with the inner wall of the positioning groove 106 for moving in the first direction. Positioning the curved mirror 7 can improve the assembly efficiency and assembly accuracy when the curved mirror 7 is assembled on the housing 1 .
  • the shape of the positioning protrusion 76 may be square, tapered, etc., and the shape of the positioning protrusion 76 is not limited in this application. In other embodiments of the present application, the positioning protrusion 76 may be accommodated in the positioning groove 106 .
  • This application does not limit the number and position of the connecting portions 74 on the curved mirror 7 , and this application does not limit the number and position of the positioning convex portions 76 on the edge of the mirror body 72 .
  • the connecting portion 74 on the third edge 726 can be omitted, the connecting portion 74 on the first edge 722 is provided close to the third edge 726, and the connecting portion 74 on the second edge 724 can be omitted.
  • the connecting portion 74 is provided close to the third edge 726 , and two connecting portions 74 can be protruded on the fourth edge 728 . As shown in FIG.
  • the positioning protrusion 76 on the fourth edge 728 can be omitted, and the connecting portion 74 is not provided on the fourth edge 728 .
  • the connecting portion 74 on the first edge 722 can be omitted, the connecting portion 74 on the second edge 724 can be omitted, and both the third edge 726 and the fourth edge 728 are provided with
  • the first edge 722 , the second edge 724 , the third edge 726 and the fourth edge 728 are all provided with positioning protrusions 76 .
  • the positioning post 18 , the positioning portion 16 , and the connecting post 19 can be omitted, and the connecting portion 74 is directly fixed to the housing 1 by gluing or other means.
  • the present application does not limit the shape of the mirror body 72 , the number of edges of the mirror body 72 , and the number of connecting parts 74 .
  • the mirror body 72 may be circular.
  • the number of edges of body 72 can be One, the number of the connecting portion 74 can be one, and the connecting portion 74 is protruding from the mirror body 72 .
  • This application does not limit the positioning protrusion 76 to be disposed on the fourth edge 728 , it only suffices that the positioning protrusion 76 is disposed on the edge of the mirror body 72 . In other embodiments of the present application, the positioning groove 106 and the positioning protrusion 76 may be omitted.
  • the curved mirror 7 may not be accommodated in the inner cavity of the main housing 11 , the curved mirror 7 may be fixedly covered on the second opening 105 , and the positioning part 16 may be provided on the outside of the housing 1 .
  • the surface 162 can be located on the outside of the housing 1 , and the positioning groove 106 can also be provided on the outside of the housing 1 .
  • Each connection component 8 includes a flexible buffer 82 , a pressing piece 84 , a first fixing part 86 and a second fixing part 88 .
  • the flexible buffer member 82 is sandwiched between the connecting part 74 and the pressing piece 84.
  • the connecting part 74, the flexible buffering member 82 and the pressing piece 84 are stacked in sequence.
  • the first fixing part 86 penetrates the pressing piece 84 and the groove 742 (shown in FIG. 14 ) of the connecting part 74 and is fixedly connected with a positioning post 18 .
  • the second fixing part 88 goes through the pressing piece 84 and is connected with a connecting post 18 . 19 Fixed connections.
  • Both the first fixing part 86 and the second fixing part 88 exert force on the pressing piece 84 , and the pressing piece 84 presses the connecting part 74 against the first positioning surface 162 to achieve a fixed connection between the housing 1 and the curved mirror 7 .
  • the flexible buffer 82 may also be located between the first fixing part 86 and the second fixing part 88 .
  • the first fixing part 86 and the second fixing part 88 may be inserted through the flexible buffer part 82 , and the length of the flexible buffer part 82 may be less than or equal to the length of the pressing piece 84 . .
  • the flexible buffer member 82 has elastic deformation capability. On the one hand, the flexible buffer 82 can reduce the possibility of damage to the connecting portion 74 due to the compression of the pressing piece 84 . On the other hand, the flexible buffer 82 can absorb vibrations and improve the shock resistance of the optical display 10 , thereby improving the performance of the optical display 10 The quality of the output imaging light.
  • the flexible buffer member 82 can be made of rubber strips, foam, silicone rubber or other elastomer materials. In some embodiments of the present application, the hardness of the pressing piece 84 is greater than the hardness of the flexible buffer member 82 .
  • the pressing piece 84 can be selected from, but is not limited to, a sheet metal part, a die-casting part, or a plastic part.
  • the curved mirror 7 is pressed onto the housing 1 through the pressing piece 84 , and the position of the curved mirror 7 is limited between the housing 1 and the pressing piece 84 , thereby improving the positional stability of the curved mirror 7 on the housing 1 and also reducing the risk of the curved mirror 7
  • the possibility of damage due to relatively large local stress extends the service life of the curved mirror 7 and is conducive to improving the reliability of the optical display 10 .
  • the first fixing part 86 and the second fixing part 88 are screws, the positioning post 18 is provided with a threaded hole, and the connecting post 19 is provided with a threaded hole.
  • the first fixing part 86 and the positioning post 18 are screwed.
  • the second fixing member 88 is screwed to the connecting column 19.
  • the connecting column 19 can be but is not limited to one of a self-tapping nail column, a hot-melt nut, and an in-mold injection nut.
  • the first fixing part 86 and the second fixing part 88 are both penetrated through the pressing piece 84 and fixedly connected with the housing 1, and the curved mirror 7 is pressed and fixed on the housing 1, thereby improving the connection between the curved mirror 7 and the housing 1. Strength and connection stability.
  • the connecting portion 74 and the positioning protrusion 76 can be omitted, and the curved mirror 7 is directly fixed to the housing 1 through the connecting component 8 .
  • the housing 1 can omit the positioning part 16, the first positioning surface 162, the positioning post 18, and the connecting post 19.
  • the connecting component 8 can omit the second fixing part 88 and the pressing piece 84, and directly fix it through the first fixing part 84.
  • the component 86 fixes the flexible buffer component 82 and the curved mirror 7 to the housing 1 .
  • the first fixing component 86 can be passed through the flexible buffer component 82 to be fixedly connected to the housing 1 .
  • the vehicle may be a truck, motorcycle, bus, boat, helicopter, lawn mower, recreational vehicle, playground vehicle, construction equipment, trolley, golf cart, train, and Trolleys, etc. are not specifically limited in this application.
  • the optical display 10 in this application is integrated into a vehicle-mounted display screen.
  • the vehicle-mounted display screen can be installed on the back of the seat of the vehicle 1000.
  • the vehicle-mounted display screen can also be installed on the seat back of the vehicle 1000. In other positions such as the co-pilot position, this application does not limit the installation position of the vehicle display screen.
  • the optical display 10 is integrated into a head-up display (HUD). middle.
  • HUD can project navigation information, instrument information, etc. into the driver's front field of vision, preventing the driver from lowering his head to view this information, thereby affecting driving safety.
  • the vehicle also includes a reflector 201 for projecting the imaging light projected by the HUD to the exterior of the vehicle.
  • the reflective member 201 may be a windshield. After the imaging light projected by the HUD is reflected by the reflective member 201, a virtual image is formed outside the vehicle.
  • the types of HUD include but are not limited to windshield (W)-HUD, augmented reality head-up display (AR-HUD), etc.
  • the optical display 10 protrudes from the seat back.
  • the optical display can also be completely embedded in the seat back, that is, it does not protrude from the seat back.
  • the optical display 10 in this application can also be integrated into a vehicle light.
  • the car lights can also implement the Adaptive Driving Beam (ADB) system, which can project text, more complex graphics such as traffic signs, and can also project images such as videos to increase the functionality of assisted driving or entertainment. Function.
  • ADB Adaptive Driving Beam
  • Figure 19 is a functional schematic diagram of a vehicle provided by an embodiment of the present application.
  • the vehicle may include various subsystems, such as the sensor system 21 in the figure, the control system 22, one or more peripheral devices 23 (one is shown as an example), the power supply 24, the computer system 25 and the display system 26.
  • the above-mentioned Various subsystems can communicate with each other.
  • the display system 26 may include the display device provided by the embodiment of the present application.
  • the vehicle may also include other functional systems, such as an engine system that provides power for the vehicle, a cockpit, etc., which are not limited here in this application.
  • the sensor system 21 may include several detection devices, which can sense the measured information and convert the sensed information into electrical signals or other required forms of information output according to certain rules.
  • these detection devices may include a Global Positioning System (GPS), a vehicle speed sensor, an inertial measurement unit (IMU), a radar unit, a laser rangefinder, a camera device, and a wheel speed sensor. , steering sensor, gear sensor, or other components for automatic detection, etc., this application is not limited.
  • the control system 22 may include several elements, such as the illustrated steering unit, braking unit, lighting system, automatic driving system, map navigation system, network time synchronization system and obstacle avoidance system.
  • the control system 22 can receive information (such as vehicle speed, vehicle distance, etc.) sent by the sensor system 21 to implement functions such as automatic driving and map navigation.
  • control system 22 may also include components such as a throttle controller and an engine controller for controlling the driving speed of the vehicle, which are not limited in this application.
  • Peripheral devices 23 may include several elements, such as communication systems, touch screens, user interfaces, microphones, and speakers, among others.
  • the communication system is used to realize network communication between vehicles and other devices other than vehicles.
  • the communication system can use wireless communication technology or wired communication technology to realize network communication between vehicles and other devices.
  • the wired communication technology may refer to communication between vehicles and other devices through network cables or optical fibers.
  • the power source 24 represents a system that provides power or energy to the vehicle, which may include but is not limited to rechargeable lithium batteries or lead-acid batteries, etc. In practical applications, one or more battery components in the power supply are used to provide electric energy or energy for starting the vehicle. The type and material of the power supply are not limited in this application.
  • the computer system 25 may include one or more processors 2501 (one processor is shown as an example) and a memory 2502 (which may also be referred to as a storage device).
  • processors 2501 one processor is shown as an example
  • memory 2502 which may also be referred to as a storage device.
  • the memory 2502 may also be internal to the computer system 25 or external to the computer system 25, for example, as a cache in a vehicle, etc., which is not limited by this application.
  • the processor 2501 may include one or more general-purpose processors, such as a graphics processing unit (GPU).
  • the processor 2501 may be used to run relevant programs or instructions corresponding to the programs stored in the memory 2502 to implement corresponding functions of the vehicle.
  • Memory 2502 may include volatile memory (volatile memory), such as RAM; memory may also include non-volatile memory (non-vlatile memory), such as ROM, flash memory (flash memory), HDD or solid state drive SSD; memory 2502 may also include a combination of the above types of memory.
  • Memory 2502 may be used to store a A set of program codes or instructions corresponding to the program codes is configured so that the processor 2501 calls the program codes or instructions stored in the memory 2502 to implement corresponding functions of the vehicle.
  • a set of program codes for vehicle control can be stored in the memory 2502, and the processor 2501 calls the program codes to control the safe driving of the vehicle. How to achieve safe driving of the vehicle will be described in detail below in this application.
  • the memory 2502 may also store information such as road maps, driving routes, sensor data, and the like.
  • the computer system 25 can be combined with other elements in the vehicle functional framework diagram, such as sensors in the sensor system, GPS, etc., to implement vehicle-related functions.
  • the computer system 25 can control the driving direction or driving speed of the vehicle based on data input from the sensor system 21 , which is not limited in this application.
  • the display system 26 can interact with other systems in the vehicle. For example, it can display navigation information sent by the control system 22 or play videos sent by the computer system 25 and peripheral devices 23 .
  • the specific structure of the display system 26 refers to the embodiment of the display device described above, and will not be described again here.
  • the four subsystems shown in this embodiment, the sensor system 21, the control system 22, the computer system 25 and the display system 26 are only examples and do not constitute a limitation.
  • vehicles can combine several components in the vehicle according to different functions to obtain subsystems with corresponding different functions.
  • the vehicle may include more or fewer subsystems or components, which is not limited by this application.
  • the vehicles in the embodiments of this application may be known vehicles such as cars, airplanes, ships, rockets, etc., or may be new vehicles that will appear in the future.
  • the car may be an electric car, a fuel car, or a hybrid car, such as a pure electric car, an extended-range electric car, a hybrid electric car, a fuel cell car, a new energy car, etc. This application does not specifically limit this.
  • NED device may be an AR device or a VR device
  • the AR device may include but is not limited to AR glasses or an AR helmet
  • the VR device may include but is not limited to VR glasses or a VR helmet.
  • Figure 20 taking AR glasses as an example. Users can wear AR glasses equipment to play games, watch videos, participate in virtual meetings, or video shopping, etc.
  • the optical display 10 in this application is integrated with a projector, see FIG. 21 , and the projector can project images onto a wall or a projection screen.
  • optical display provided by this application can also be applied in other possible scenarios, such as medical equipment, which is not limited by this application.
  • connection and “connection” mentioned in this application include direct and indirect connections (connections) unless otherwise specified.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本申请提供一种光学显示器及交通工具。光学显示器包括外壳、光源单元、透反光学元件、曲面镜。外壳设有第一开口。光源单元固定于外壳上，用于出射成像光。透反光学元件固定于外壳上并覆盖第一开口，用于透射及反射成像光。曲面镜固定于外壳上，用于反射成像光。光源单元发出的成像光经透反光学元件反射到曲面镜，曲面镜将成像光经透反光学元件透射到所述外壳的外部。由于光源单元、透反光学元件及曲面镜直接固定于同一个外壳上，减少了光学显示器的元件数量，降低了光学显示器的装配难度，提高了光学显示器的装配精度，简化了光学显示器的结构，进而有利于提高光学显示器的光路***的精度。

Description

光学显示器及交通工具
本申请要求于2022年4月29日提交中国国家知识产权局、申请号为202210469117.9、申请名称为“光学显示器及交通工具”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及光学显示器技术领域，特别涉及一种光学显示器及交通工具。
背景技术
光学显示器是指一类利用光学成像原理在小空间内获得大屏视觉体验的设备，其可以广泛应用于投影仪、抬头显示器(head-up display,HUD)、车载显示屏、车灯等。
常用的光学显示器中，光源单元、曲面镜等光学元件先粘贴到各自的框体上，再通过框体固定到外壳上，多次转接降低了光学显示器的光路***的精度。
发明内容
本申请实施方式提供了一种能够提高光路***精度的光学显示器及交通工具。
第一方面，本申请提供了一种光学显示器，包括外壳、光源单元、透反光学元件、曲面镜。外壳设有第一开口。光源单元固定于外壳上，用于出射成像光。透反光学元件固定于外壳上并覆盖第一开口，用于透射及反射成像光。曲面镜固定于外壳上，用于反射成像光。光源单元发出的成像光经透反光学元件反射到曲面镜，曲面镜将入射的成像光经透反光学元件透射到所述外壳的外部。
元件之间的装配存在装配公差，光学显示器的元件数量若越多，则装配精度可能会越低，装配精度则会影响光学显示器的光路***的精度。
本申请中，由于光源单元、透反光学元件及曲面镜均未通过其他转接件(例如各自的固定框体)而直接固定于同一个外壳上，减少了光学显示器的元件数量，降低了光学显示器的装配难度，提高了光学显示器的装配精度，简化了光学显示器的结构，进而有利于提高光学显示器的光路***的精度，及提高光学显示器的成像光的输出质量。
根据第一方面，在一种可能的实现方式中，所述外壳包括主壳体及装设部。第一开口设于主壳体上，光源单元与曲面镜均固定于主壳体上。装设部凸设于主壳体的外侧面上。透反光学元件与装设部固定连接并位于主壳体的外部。
光学显示器的内部光路位于主壳体的内腔，而固定透反光学元件的装设部设置在主壳体的外部，使得装设部对光学显示器的内部光路无影响，换而言之，装设部对成像光在主壳体的内部的传输不造成影响，减少了光学显示器的反射杂散光的产生，提高了光学显示器的成像光输出质量。
根据第一方面，在一种可能的实现方式中，所述装设部包括装设底壁及保护凸缘。装设底壁凸设于主壳体的外侧上并沿所述第一开口的周缘轮廓设置。透反光学元件固定于所述装设底壁上。保护凸缘凸设于装设底壁上，所述保护凸缘围住所述透反光学元件的至少部分边缘。
通过保护凸缘包住透反光学元件的边缘，以对透反光学元件进行保护，降低透反光学元件被刮碰而导致损坏的可能性，进而延长透反光学元件的使用寿命。
另外，透反光学元件选用透反玻璃时，透反光学元件的边缘通常较为锋利，而通过保护凸缘包住透反光学元件的至少部分边缘，能够降低用户被透反光学元件的边缘刮伤或割伤的可能性，提高光学显示器的安全可靠性。
根据第一方面，在一种可能的实现方式中，所述装设底壁设有装设面，所述装设面与所述透反光学元件平行设置。
所述装设面与所述透反光学元件平行设置，装设面的位置与透反光学元件在光学显示器中的光路中所处位置相对应，在透反光学元件与外壳的装配过程中，装设面可以对透反光学元件沿装设面的法向方向进行定位，提高外壳对透反光学元件的定位精度，及提高光学显示器中的成像光的输出质量。
根据第一方面，在一种可能的实现方式中，所述外壳上设有安装面，所述外壳还包括固定柱，所述固定柱凸设于所述安装面上，所述光源单元包括连接设置的发光区与非发光区，所述发光区用于出射成像光，所述非发光区的光源单元与所述固定柱固定连接。
所述非发光区的光源单元与所述固定柱固定连接，可以将固定柱固定穿设于非发光区的光源单元，也可以通过螺钉等紧固件依次穿设于非发光区的光源单元及固定柱，紧固件与固定柱固定连接，进而将光源单元与固定柱固定连接。光源单元与安装面可以紧贴设置，也可以间隔设置。
由于光源单元通过非发光区与固定柱固定连接，在对光源单元的成像光的输出不会造成影响，亦加强了光源单元与外壳之间的连接稳定性。
根据第一方面，在一种可能的实现方式中，所述非发光区上设有定位孔；所述外壳还包括凸设于所述安装面上的光源定位柱，所述光源定位柱穿设于所述定位孔，以对光源单元进行定位。
根据第一方面，在一种可能的实现方式中，所述定位孔包括第一定位孔与第二定位孔，所述光源定位柱包括第一光源定位柱与第二光源定位柱，所述第一光源定位柱穿设于第一定位孔，所述第二光源定位柱穿设于所述第二定位孔；在所述第一定位孔与所述第二定位孔的排列方向上，所述第二定位孔的长度大于所述第一定位孔的长度。
理想状态下，定位孔与光源定位柱的形状相适配，两个定位孔之间的预设间距(设计间距)与两个光源定位柱之间的预设间距相同，例如，定位孔为圆形，光源定位柱为圆柱。然而，在实际中不可避免地存在制造误差，使得两个光源定位柱之间的实际间距，与预设间距之间存在误差。这样一来，可能造成光源单元的光源定位柱无法安装至对应的定位孔内。
本申请中，在第一定位孔与第二定位孔的排列方向上，第一定位孔的长度大于第二定位孔的长度，第一定位孔光源单元组装于外壳上时留有装配余量，即在第一光源定位柱与第二光源定位柱间的实际间距与预设间距存在一定差值时，亦可以将光源单元组装于外壳上。例如，第一光源定位柱与第二光源定位柱之间的实际间距比预设间距大一些时，第一光源定位柱依然能够装入第一定位孔，第二光源定位柱依然能够装入第二定位孔，这样一来，降低了对外壳及光学显示器的制造精度要求及制造成本。
根据第一方面，在一种可能的实现方式中，所述光源单元与所述安装面平行设置。
所述安装面与所述光源单元平行设置，安装面的位置与光源单元在光学显示器中的光路所处位置相对应，在光源单元与外壳的装配过程中，安装面可以对光源单元沿安装面的法向方向进行定位，提高外壳对光源单元的定位精度，及提高光学显示器中的成像 光的输出质量。
根据第一方面，在一种可能的实现方式中，所述外壳上设有定位面，曲面镜与所述定位面固定连接；
其中，所述曲面镜包括镜体及凸设于所述镜体上的连接部，所述连接部与所述定位面相贴合并固定连接。
凸设于镜体上的连接部又可以称为“挂耳”。在曲面镜与外壳的装配过程中，定位面可以对曲面镜沿定位面的法向方向进行定位，定位柱可以对连接部进行定位，提高光学显示器的装配精度及装配效率，并方便曲面镜与外壳的组装。
根据第一方面，在一种可能的实现方式中，所述镜体包括第一边缘、第二边缘、第三边缘及第四边缘，所述第一边缘与所述第二边缘沿第一方向相对设置，所述第三边缘与所述第四边缘相对设置，所述第一方向不同于所述第二方向，所述第一边缘、所述第二边缘、所述第三边缘均凸设有连接部，每个连接部对应与一个定位面固定连接。
在第一方向(例如X方向)与第二方向(例如Y方向)上对曲面镜进行定位，有利于提高曲面镜与外壳之间的装配精度。
根据第一方面，在一种可能的实现方式中，所述外壳还包括凸设于定位面上的定位柱，所述定位柱穿设于所述连接部，有利于限制曲面镜相对外壳的运动。
根据第一方面，在一种可能的实现方式中，所述外壳设有定位凹槽，所述曲面镜包括镜体及凸设于所述镜体的边缘上的定位凸部，所述定位凸部收容于所述定位凹槽内，降低曲面镜相对外壳运动的可能性。
根据第一方面，在一种可能的实现方式中，所述外壳包括连接设置的第一部分与第二部分，所述光源单元固定于所述第一部分上，所述曲面镜固定于所述第二部分，所述第二部分围成至少部分所述第一开口。
由于光源单元安装及收容于第一部分，透反光学元件与曲面镜位于第二部分，使用户在观看光学显示器时，难以透过透反光学元件看到位于第一部分的光源单元，相当于光源单元隐藏于第一部分内，有利于提高用户的使用体验。
根据第一方面，在一种可能的实现方式中，所述光源单元具有发光面，所述透反光学元件具有反射面，所述发光面相对所述反射面倾斜设置，这样一来，发光面出射的成像光可以直接入射至透反光学元件上，减少或无需借助其他光学元件，从而简化光学显示器的内部光路及光学显示器的结构。
根据第一方面，在一种可能的实现方式中，所述第一开口包括相对设置的第一装设边缘与第二装设边缘；所述光源单元包括发光区，所述发光区包括相对设置的第一发光区边缘与第二发光区边缘；所述第一装设边缘上的第一点与所述第二发光区边缘上的第二点位于连接线上，所述第一发光区边缘位于所述连接线的第一侧，所述第二装设边缘位于所述连接线的第二侧，用户在观看所述光学显示器时眼睛位于所述连接线的第一侧。
在用户观看光学显示器时，用户的眼睛与所述第一发光区边缘位于所述连接线的同一侧，使得用户看不到光源单元的亮点，实现防窥，进而提高了用户的使用体验。
根据第一方面，在一种可能的实现方式中，所述外壳还设有与第一开口连通设置的第二开口，所述曲面镜位于所述第二开口，所述光学显示器还包括盖体，所述盖体与所述外壳可拆卸连接，所述盖体覆盖所述第二开口。
第二开口的设置，方便将曲面镜装入外壳内，或将曲面镜从外壳取出，即方便曲面镜与外壳之间的组装与拆卸。盖体的设置，有利于封闭第二开口，减少灰尘进入外壳。
第二方面，本申请提供一种交通工具，包括如上所述的光学显示器，所述光学显示器安装在所述交通工具上。
根据第二方面，在一种可能的应用场景中，光学显示器可以集成于抬头显示器，抬头显示器可以将导航信息、仪表信息等投射在驾驶员的前方视野范围，这样一来，避免了驾驶员低头查看该等信息时在图像和路面之间来回切换视线，减少了危机反应时间，提高了驾驶的安全性。
在一种可能的应用场景中，光学显示器可以集成于车载显示屏中，车载显示屏可以安装在座椅后背或副驾驶位置等，用户可以通过光学显示器观看视频等，从而提高了交通工具的娱乐功能。
在一种可能的应用场景中，光学显示器可以集成于车灯中。
附图说明
图1为本申请一实施方式提供的交通工具的应用场景示意图；
图2a为本申请一实施方式提供的一种光学显示器的剖视图；
图2b为图2a所示的光学显示器的立体分解示意图；
图3为本申请一实施方式提供的光学显示器的一种虚像原理的成像示意图；
图4为本申请一实施方式提供的光学显示器的外壳的立体示意图；
图5为本申请一实施方式提供的光学显示器的外壳的剖视图；
图6为图2a的部分区域A的放大示意图；
图7为图2a的部分区域B的放大示意图；
图8a为本申请一实施方式提供的光学显示器的外壳的一示意图；
图8b为本申请一实施方式提供的光学显示器的外壳的另一视角的立体示意图；
图9为本申请的一实施方式提供的外壳与光源单元组装于一起的平面示意图；
图10a为本申请一实施方式提供的安装面上的固定柱与定位柱的分布示意图；
图10b为本申请一实施方式提供的外壳的又一视角的立体示意图；
图11为本申请的一实施方式提供的外壳与曲面镜的立体分解示意图；
图12为本申请的一实施方式提供的曲面镜的平面示意图；
图13为本申请的一实施方式提供的外壳与曲面镜组装于一起的示意图；
图14为图13所示的部分区域C的放大示意图；
图15a为本申请的一实施方式提供的曲面镜的可能结构的平面示意图；
图15b为本申请的一实施方式提供的曲面镜的可能结构的平面示意图；
图15c为本申请的一实施方式提供的曲面镜的可能结构的平面示意图；
图15d为本申请的一实施方式提供的曲面镜的可能结构的平面示意图；
图16为本申请的一实施方式提供的外壳与曲面镜的另一视角的立体组装示意图；
图17为本申请一实施方式提供的光学显示器的又一剖视图；
图18a为本申请一实施方式提供的一种交通工具的部分结构示意图；
图18b为光学显示器集成于抬头显示器的一种可能实现方式的示意图；
图19为本申请提供的交通工具的功能示意图；
图20为本申请的一实施方式提供的光学显示器的一种可能的应用场景示意图；
图21为本申请的一实施方式提供的光学显示器的另一种可能的应用场景示意图。
具体实施方式
请参阅图1，本申请一实施方式提供一种交通工具1000，本申请实施方式中的交通工具1000可以是汽车、飞机、轮船、火箭等已知的交通工具，还可以是未来新出现的交通工具。汽车可以是电动汽车、燃油车或混合动力车，例如，纯电动汽车、增程式电动汽车、混合动力电动汽车、燃料电池汽车、新能源汽车等，本申请对此不做具体限定。
交通工具1000包括座舱200及安装于座舱200内的座椅。座椅包括第一座椅300及第二座椅500，用于供乘坐者乘坐。本实施方式中，第一座椅300为设于座舱200内的前排座椅。第二座椅500为设于排列于第一座椅300后的后排座椅，用于供乘坐者乘坐。在本申请的其他实施方式中，第一座椅300可以不是前排座椅。
第一座椅300包括座椅主体301及安装于座椅主体301上的光学显示器10。在本申请中，将乘坐在第二座椅500上观看光学显示器10的乘坐者称为观看者。可以理解，光学显示器10也可以安装在交通工具1000的副驾驶位置(如图1所示)，即安装于交通工具的仪表板(Instrument Panel,IP)台上。
请参阅图2a，本申请一实施方式提供一种光学显示器10，用于输出承载图像信息的成像光。
请结合参阅图2a与图2b，光学显示器10包括外壳1、光源单元3、透反光学元件5、曲面镜7、连接组件8及盖体9。
光源单元3固定于外壳1上，用于出射成像光。透反光学元件5固定于外壳1上，用于透射及反射成像光。曲面镜7通过连接组件8固定于外壳1上，用于反射成像光。盖体9固定于外壳1上并覆盖曲面镜7，用于保护曲面镜7及减少灰尘进入外壳1内。
光源单元3发出的成像光经透反光学元件5反射到曲面镜7，曲面镜7反射的成像光经透反光学元件5后透射到外壳1的外部。其中，光源单元3可以称为图像源。透反光学元件5可以反射光源单元3发出的成像光至曲面镜7，透射曲面镜7反射的成像光。
常规的光学显示器中，光源、曲面镜等光学元件均先固定在各自的固定框体后再组装至外壳，这样一来，光学显示器的元件数量较多。元件之间的装配存在装配公差，元件数量若越多，则***或设备的装配难度越大、装配精度可能会越低。
而本申请中，由于光源单元3、透反光学元件5及曲面镜7均未通过其他转接件(例如各自的固定框体)而直接固定于同一个外壳1上，减少了光学显示器10的元件数量，降低了光学显示器10的装配难度，提高了光学显示器10的装配精度，简化了光学显示器10的结构，进而有利于提高光学显示器10的光路***的精度，及提高光学显示器10的成像光的输出质量。
请参阅图3，本申请的一些实施方式中，曲面镜7可将成像光经过透反光学元件5透射到外壳1的外部后，再进入到眼睛80中，眼睛80看到放大的虚像。虚像是可以由眼睛观看而不需要被光幕接收。如图3所示，光源单元3发出具有一定发散角的成像光L，经过透反光学元件5及曲面镜7反射后再进入眼睛80，大脑会以“光线沿直线传播”的经验对光线反向追迹，认为成像光L以反向延长的交点为物点，即虚像点。其中，眼睛80所在的位置可以称为眼盒(Eyebox)位置。
在本申请的其他实施方式中，曲面镜7可将成像光经透反光学元件5后投射到位于外壳1的外部的光幕(图未示)上，光幕可以为墙壁、投影幕布、木板等，本申请对光幕的具体形式不作限定。
本申请的一些实施方式中，外壳1为一体成型的壳体。本申请的其他实施方式中，外壳1可以通过两个或两个以上的部分组装而成。
请参阅图4与图5，外壳1包括主壳体11及装设部13。
主壳体11包括连接设置的第一部分1101(可视为外壳1的上部)及第二部分1103(可视为外壳1的下部)。第一部分1101与第二部分1103围成的腔体包括第一开口103(如图5所示)与第二开口105(可以称为前后两个开口)。第一开口103与主壳体11的内腔连通设置，第二开口105与主壳体11的内腔连通设置。第一开口103用于透过成像光。第二开口105用于装配曲面镜7。光源单元3固定收容于第一部分1101内。透反光学元件5与曲面镜7位于第二部分1103。
由于光源单元3安装及收容于第一部分1101内，透反光学元件5与曲面镜7位于第二部分1103，使用户在观看光学显示器10时，难以透过透反光学元件5看到位于第一部分1101的光源单元3，相当于光源单元3隐藏于第一部分1101内，光源单元3的杂散光不会直接透射透反光学元件5到达人眼，从而有利于提高用户的使用体验，也提高光学显示器10的成像质量。
本申请的一些实施方式中，第一部分1101包括弯折连接设置的第一侧壁111与第二侧壁112。第一侧壁111上设有朝向主壳体11内腔设置的安装面1113，用于与光源单元3连接(安装光源单元3)。
本申请的一些实施方式中，第二部分1103包括第三侧壁113、第四侧壁114及第五侧壁115。第三侧壁113固定连接于第四侧壁114与第五侧壁115之间。
第三侧壁113朝向主壳体11内腔的内壁上形成有定位凹槽106，用于定位曲面镜7。
第四侧壁114与第五侧壁115相对设置。第一侧壁111位于第四侧壁114与第五侧壁115之间。第二侧壁112位于第四侧壁114与第五侧壁115之间。第三侧壁113位于第四侧壁114与第五侧壁115之间。第一侧壁111、第二侧壁112、第三侧壁113、第四侧壁114及第五侧壁115共同围成主壳体11的内腔。第二侧壁112、第三侧壁113、第四侧壁114及第五侧壁115共同围成第一开口103。第一侧壁111、第三侧壁113、第四侧壁114及第五侧壁115共同围成第二开口105。
请参阅图6，装设部13凸设于主壳体11的外侧面上，用于固定透反光学元件5。光学显示器10的内部光路位于主壳体11的内部，而固定透反光学元件5的装设部13设置在主壳体11的外部，使得装设部13对光学显示器10的内部光路无影响，换而言之，装设部13对成像光在主壳体11的内部传输不造成影响，减少了光学显示器10的反射杂散光的产生，提高了光学显示器10的成像光输出质量。
装设部13包括装设底壁132及保护凸缘134。装设底壁132凸设于主壳体11的外侧上，装设底壁132上设有装设面1320，用于与透反光学元件5固定连接。本实施方式中，装设底壁132凸设于第二侧壁112、第三侧壁113、第四侧壁114及第五侧壁115上，装设底壁132沿第一开口103的周缘轮廓设置。装设面1320相对安装面1113(图5所示)倾斜设置。
透反光学元件5与装设底壁132的装设面1320固定连接。透反光学元件5与装设面1320平行设置。装设面1320与透反光学元件5平行设置，装设面1320的位置与透反光学元件5在光学显示器10中的光路中的所处位置相对应，在透反光学元件5与外壳1的装配过程中，装设面1320可以对透反光学元件5沿装设面1320的法向方向进行定位，提高外壳1对透反光学元件5的定位精度，及提高光学显示器10中的成像光的输出质量。
本申请的一些实施方式中，透反光学元件5通过胶体粘接于装设底壁132上。胶体可以选用双面胶，也可以打胶。
本申请的其他实施方式中，透反光学元件5也可以与装设面1320非平行设置。
本申请的其他实施方式中，外壳1的内壁上设有装设面1320，透反光学元件5也可以位于 外壳1的内部。
保护凸缘134凸设于装设底壁132上并沿装设底壁132的周缘设置，用于保护透反光学元件5的边缘。本申请的一些实施方式中，保护凸缘134环绕透反光学元件5设置，以将透反光学元件5包围。在本申请的其他实施方式中，保护凸缘134凸设在装设底壁132的部分周缘上，以分段或区域性地保护透反光学元件5的边缘，即保护凸缘134保护透反光学元件5的至少部分边缘。
由于保护凸缘134围住透反光学元件5的至少部分边缘，对透反光学元件5进行保护，降低透反光学元件5被刮碰而导致损坏的可能性，进而延长透反光学元件5的使用寿命。另外，保护凸缘134围住透反光学元件5的至少部分边缘，亦能减少降低用户被透反光学元件5的边缘刮伤或割伤的可能性，提高光学显示器10的安全可靠性。
本申请的其他实施方式中，装设部13还可以省略，将透反光学元件5直接固定于主壳体11上，透反光学元件5也可以收容于主壳体11的内部。
请参阅图7，外壳1还包括凸设于安装面1113上的固定柱14及光源定位柱15。固定柱14用于与光源单元3固定连接。
光源单元3可以与安装面1113平行设置，安装面1113的位置与光源单元3在光学显示器10中的光路中所处位置相对应，在光源单元3与外壳1的装配过程中，安装面1113可以对光源单元3沿安装面1113的法向方向进行定位，提高外壳1对光源单元3的定位精度，及提高光学显示器10中的成像光的输出质量。本申请的其他实施方式中，光源单元3也可以与安装面1113非平行设置。
光源定位柱15，用于定位光源单元3。
请参阅图8a与图8b，外壳1还包括设于主壳体11的内壁上的定位部16，用于定位曲面镜7。
本申请的一些实施方式中，定位部16的数量为多个，多个定位部16设于主壳体11的内壁上。第一侧壁111、第四侧壁114与第五侧壁115朝向主壳体11的内腔的内壁上均形成有定位部16。定位部16大致呈槽状结构。例如，如图8b所示，第一侧壁111上的定位部16为设于第一侧壁111上并位于主壳体11内的槽状结构，第五侧壁115上的定位部16为凹设于第五侧壁115并位于主壳体11内的凹槽结构。每个定位部16包括第一定位面162及侧面164。第一定位面162朝向第二开口105设置，用于与曲面镜7贴合，以提高曲面镜7与外壳1之间的装配精度。
本申请对定位部16的结构不作限定，定位部16能够对曲面镜7进行定位即可，例如，可以通过在主壳体11的内壁上凸设若干凸柱，若干凸柱围成一个定位部16，定位部16能够对曲面镜7在外壳1上的位置进行限定即可。
本申请的一些实施方式中，第一定位面162的法向与第二开口105的法向相同，多个定位部16的第一定位面162可以位于同一个平面上。本申请的其他实施方式中，多个定位部16的第一定位面162可以相互平行也可以不相互平行。本申请的其他实施方式中，第一定位面162的法向与第二开口105的法向可以不相同。
外壳1还包括凸设于第一定位面162上的定位柱18，用于定位曲面镜7。
外壳1还包括凸设于第一定位面162上的连接柱19，用于与曲面镜7固定连接。
在本申请的其他实施方式中，外壳1可以不为一体成型的壳体。
本申请的其他实施方式中，对外壳1的结构不作限定，例如，第一开口103、第二开口105位于第二部分1103上，外壳1能够固定光源单元3、透反光学元件5及曲面镜7，使光学显示器10能够输出成像光即可。
本申请的其他实施方式中，第二开口105可以省略，曲面镜7固定收容于外壳1内。
本申请提供的光学显示器10，由于光源单元3、透反光学元件5及曲面镜7集成于外壳1上而形成一个整体，光源单元3、透反光学元件5及曲面镜7之间的相对位置由光学原理确定，保证了光学显示器10的显示效果。
本申请的一些实施方式中，光源单元3采用液晶显示(liquid crystal display,LCD)成像技术。LCD成像利用了液晶的光电效应原理，液晶分子受外加电场的影响而改变排列状态，不同排列状态的液晶分子能够控制对光的透过率。例如，在两个偏振方向互相垂直的偏振片中间为液晶分子，在不加电场时，液晶分子能够使经过第一偏振片的线偏振光偏振方向旋转90°，此时，光线以最大透过率通过第二偏振片；在施加电场时，液晶分子排列状态改变，对偏振光的旋转角度也发生改变，光线透过第二偏振片的强度随之减弱。LCD显示屏每个像素点由三原色组成，通过控制三原色的强弱来实现彩色图像的显示。本申请对光源单元3的光源种类不作限定，例如，光源单元3还可以采用数字光处理(digital light processing,DLP)技术、激光扫描投影等。
本申请的一些实施方式中，请参阅图9，光源单元3包括发光区301及非发光区302。发光区301用于出射成像光。非发光区302可以为光源单元3的边框。本申请的一些实施方式中，非发光区302与固定柱14固定连接。
非发光区302环绕发光区301设置，非发光区302上设有紧固孔31。紧固孔31的数量对应固定柱14的数量。紧固孔31的数量为四个，四个紧固孔31分布于光源单元3的四个角落处。请结合参阅图10a，固定柱14的数量为四个。固定柱14为螺钉柱，固定柱14上设有与螺钉配合的螺纹孔，将螺钉穿设于紧固孔31后，再固定穿设于固定柱14的螺纹孔内，实现光源单元3固定于固定柱14上。本申请对光源单元3的形状不作限定，例如可以为圆形、不规则形状等，光源单元3可以出射成像光即可。在本申请的其他实施方式中，固定柱14可以固定穿设于紧固孔31内。
非发光区302上设有定位孔33，用于穿设光源定位柱15，以定位光源单元3在外壳1上的位置。
本申请的一些实施方式中，定位孔33包括第一定位孔332及第二定位孔334，光源定位柱15包括第一光源定位柱152及第二光源定位柱154，第一光源定位柱152穿设于第一定位孔332，第二光源定位柱154穿设于第二定位孔334。在第一定位孔332与第二定位孔334的排列方向上，第一定位孔332的长度大于第二定位孔334的长度，例如，第二定位孔334为圆孔，第一定位孔332为在第一方向的长度大于第二定位孔334的直径的长条形孔。
理想状态下，定位孔33与光源定位柱15的形状相适配，两个定位孔33之间的预设间距(设计间距)与两个光源定位柱15之间的预设间距相同，例如，定位孔33为圆形，光源定位柱15为圆柱。然而，在实际中不可避免地存在制造误差，使得光源定位柱15之间的实际间距，与预设间距之间存在误差。这样一来，可能造成光源单元3的光源定位柱15无法安装至对应的定位孔33内。
本申请中，在第一定位孔332与第二定位孔334的排列方向上，第一定位孔332的长度大于第二定位孔334的长度，第一定位孔332为光源单元3组装于外壳1上时留有装配余量，即在第一光源定位柱152与第二光源定位柱154之间的实际间距与预设间距存在一定差值时，亦可以将光源单元3组装于外壳1上。例如，第一光源定位柱152与第二光源定位柱154之间的实际间距比预设间距大一些时，第一光源定位柱152依然能够装入第一定位孔332，第二光源定位柱154依然能够装入第二定位孔334，这样一来，降低了对外壳1及光学显示器10的制造精度要求及制造成本。
在本申请的其他实施方式中，固定柱14、第一光源定位柱152、第二光源定位柱154均可以省略，光源单元3可直接固定于第一侧壁111的安装面1113上，本申请对光源单元3与外壳1的固定方式不作限定，例如，光源单元3可以省略非发光区302，光源单元3的发光区301通过胶体粘贴在第一侧壁111上，光源单元3覆盖第一侧壁111。
本申请的其他实施方式中，光源单元3也可以固定在外壳1的外部，即安装面1113可以设置在外壳1的外侧面上，例如，可以在外壳1的侧壁上设有透光区域，光源单元3出射的成像光透过透光区域进入外壳1的内腔。透光区域可以为通孔，也可以为透明区域。
请结合参阅图9与图3，发光区301包括相对设置的第一发光区边缘3011及第二发光区边缘3013，本申请的一些实施方式中，第一发光区边缘3011设于发光区301靠近第一开口103的一端，第二发光区边缘3013设于发光区301远离第一开口103的一端。成像光L包括成像光L1及成像光L2，两路成像光限定了光源单元3发出的光线的发散角。其中，成像光L1从第一发光区边缘3011出射，成像光L2从第二发光区边缘3013出射。
光源单元3的发光区301具有发光面，透反光学元件5具有反射面，光源单元3的发光面相对透反光学元件5的反射面倾斜设置，无需借助其他光学元件，发光面出射的成像光可以直接入射至透反光学元件5上，简化光学显示器10的内部光路及光学显示器10的结构。
请结合参阅图3与图10b所示，第一开口103包括相对设置的第一装设边缘1031与第二装设边缘1033，第一装设边缘1031位于第二侧壁112远离第二开口105一端的边缘上，第二装设边缘1033位于第三侧壁113远离第二开口105的一端的边缘上。第一装设边缘1031上的第一点与第二发光区边缘3013上的第二点位于连接线M上。第一发光区边缘3011位于连接线M的第一侧，第二装设边缘1033位于连接线M的第二侧。用户在使用光学显示器10时，眼睛80位于第一装设边缘1031所在的第一侧，眼睛80位于连接线M的上方，使得眼睛80在正常观看时，不会直接看到光源单元3的发光区301(即亮点)，避免光源单元3的杂散光直接透射透反光学元件5到达人眼(正常情况是先被透反光学元件5反射至曲面镜7，被曲面镜7反射后，透过透反光学元件5入射到人眼)，提高了光学显示器10的显示效果，亦提高了用户的使用体验。
从图3可知，第一开口103包括的第一装设边缘1031可以称为第一开口103的上边缘，第二装设边缘1033可以称为第一开口103的下边缘。对应的，发光区301的第一发光区边缘3011可以称为发光区301的上边缘，第二发光区边缘3013可以称为发光区301的下边缘。
透反光学元件5能够透射部分入射至透反光学元件5上的入射光及反射部分入射光的光学元件。例如，透反光学元件可以透射50％的入射光，透反光学元件可以反射50％的入射光；或者，透反光学元件可以透射30％的入射光，透反光学元件可以反射70％的入射光。透反光学元件5透射入射光占整体入射光的比例，可以根据需要进行选用。透反光学元件5的材质可以选用玻璃等。
本实施方式中，曲面镜7是匹配光学成像需要的自由曲面的反射镜。
传统光学设计中所采用的光学元件的面型为标准球面，一般需要多片球面镜进行配合矫正像差，从而导致其光学结构比较复杂，占用空间较大。
随着光学产业的发展，面型较为复杂的非球面的设计与制造技术到得到了很大提高，非球面一般是指具有回转轴的抛物面、椭球面、渐开面、双曲面等二次曲面以及高次曲面，还有非回转非球面，如离轴非球面。根据使用场景的不同，一片非球面通常可以代替两片或多片球面矫正像差，从而简化光学结构，实现光路的微型化与轻量化。
相对于非球面，自由曲面是一种面型更为复杂的光学结构，其表面各点的曲率半径都不相同，面型的自由度非常高。自由曲面不仅能够代替多片非球面矫正像差，还能最大限度的提高光学质量，精简光学结构。光学自由曲面面形结构复杂，自由度高，没有明确的表达式定义，一般认为不具备全局的旋转对称性、无统一的光轴、整个表面存在多个曲率半径的光学表面为光学自由曲面。
本申请的其他实施方式中，曲面镜7还可以采用球面反射镜或非球面反射镜，本申请对此不作限定。
请参阅图11与图12，曲面镜7包括镜体72、连接部74及定位凸部76。连接部74凸设于镜体72上，连接部74收容于定位部16内，用于与定位部16相配合并固定连接。定位凸部76凸设于镜体72上，定位凸部76收容于定位凹槽106内。
镜体72包括第一边缘722、第二边缘724、第三边缘726及第四边缘728。第一边缘722与第二边缘724沿第一方向(例如图11与图12所示的X方向)相对设置。第三边缘726与第四边缘728沿第二方向(例如图11与图12所示的Y方向)相对设置，第一方向不同于第二方向。第一定位面162的法向为第三方向(如图11与图12所示的Z方向)，第三方向不同于第一方向，第三方向不同于第二方向。本实施方式中，第一方向与第二方向相垂直，第一方向与第三方向相垂直，第二方向与第三方向相垂直。其中，第一边缘722设于镜体72与第四侧壁114相邻一侧，第二边缘724设于镜体72与第五侧壁115相邻一侧，第三边缘726设于镜体72与第一侧壁111相邻一侧，第四边缘728设于镜体72与第三侧壁113相邻一侧。本申请的一些实施方式中，在第二方向上，从曲面镜7的第四边缘728朝向第三边缘726的方向，光源单元3的发光区301的位置高于曲面镜7的位置及透反光学元件5的位置(如图1和图3所示)。
本申请的一些实施方式中，连接部74的数量为多个。每个连接部74对应收容于一个定位部16内，并与定位部16内的第一定位面162固定连接。
第一边缘722、第二边缘724、第三边缘726均凸设有连接部74，每个连接部74对应收容于一个定位部16内。每个连接部74通过连接组件8与定位部16内的第一定位面162固定连接。本实施方式中，第一边缘722与第二边缘724均凸设有一个连接部74，第三边缘726凸设有两个连接部74。四个连接部74大致位于镜体72的四个角的位置。
第一边缘722上的连接部74、第二边缘724上的连接部74、第三边缘726上的连接部74与对应的定位部16之间的配合，能够将曲面镜7定位在主壳体11上。
每个连接部74还设有沿第三方向贯穿连接部74的凹槽742，用于穿设定位柱18。请结合参阅图13与图14，外壳1上的每个定位柱18穿设于一个连接部74的凹槽742，用于定位连接部74，方便了曲面镜7与外壳1之间的组装，提高光学显示器10的装配精度及装配效率。
每个连接部74朝向第一定位面162的一侧设有与第一定位面162相抵持或相贴合的第二定位面740(图12所示)。曲面镜7设有反射层(例如反射涂层)以形成反射成像光的反射面，反射面可以位于在曲面镜7朝向第二开口105的一侧，反射面也可以位于在曲面镜7背离第二开口105的一侧，即朝向第一开口103的一侧。第二定位面740可以设有反射层，也可以没有反射层。第一定位面162与第二定位面740平行并相抵持，实现曲面镜7在第三方向的定位并限制曲面镜7绕第一方向、第二方向旋转。本申请的一些实施方式中，多个连接部74的第二定位面740位于同一个平面上。在本申请的其他实施方式中，第一定位面162可以与第二定位面740可以非平行设置，多个连接部74的第二定位面740可以平行 设置或者非平行设置。
通过设置在镜体72的边缘上的连接部74与对应的定位部16之间的配合，实现在三个方向对曲面镜7进行定位的同时，亦限制曲面镜7绕三个方向的转动，有利于进一步提高曲面镜7相对外壳1的位置稳定性，进而提高了光学显示器10的显示质量。
由于制成材料的差异，曲面镜与光学显示器的其他配合部件(例如外壳)的热膨胀系数通常不相同，这使得在环境温度变化较大时，曲面镜容易受到其他配合部件的挤压而导致变形。以曲面镜与外壳为例，在光学显示器所处的环境温度大于预设温度(例如70摄氏度等)的情况下，曲面镜、外壳因热膨胀发生变形，外壳可能挤压曲面镜。曲面镜一旦发生变形，变形部位所反射的成像光的光路发生畸变，影响光学显示器的成像光输出质量。
本申请的一些实施方式中，曲面镜7的热膨胀系数与外壳1的热膨胀系数不同。考虑到外壳1与曲面镜7的热膨胀因素，曲面镜7的边缘(包括第一边缘722、第二边缘724、第三边缘726、第四边缘728及各连接部74的边缘)之间存有预留间隙700(图14所示)，以预留给曲面镜7与外壳1热膨胀空间，降低曲面镜7因挤压而导致变形的可能性，提高了光学显示器10的光路稳定性。
预留间隙700包括第一预留间隙701及第二预留间隙702。第一预留间隙701设于侧面164与连接部74的边缘之间，以预留给连接部74与外壳1热膨胀空间。
第二预留间隙702设于每个连接部74的凹槽742的内壁与对应的定位柱18之间，以预留给定位柱18与连接部74热膨胀空间。本申请的一些实施方式中，镜体72在第一方向的长度大于镜体72在第二方向的长度，曲面镜7在第一方向的热膨胀程度比第二方向的热膨胀程度可能会更大。以第四侧壁114上的定位部16与对应配合的连接部74为例，在第一方向上，凹槽742的部分内壁与对应的定位柱18之间存有第二预留间隙702，在第二方向上，凹槽742的部分内壁与对应的定位柱18紧贴于一起，以在降低热膨胀导致曲面镜7变形的可能性的同时，提高定位部16对连接部74的定位精度。本申请的其他实施方式中，镜体72在第一方向的长度大于或等于镜体72在第二方向的长度。
结合图12，定位凸部76凸设于镜体72的第四边缘728上，定位凸部76收容于定位凹槽106内并与定位凹槽106的内壁相卡持，用于在第一方向对曲面镜7进行定位，能够提高曲面镜7组装于外壳1上时的装配效率及装配精度。定位凸部76的形状可以是方形、锥形等，本申请对定位凸部76的形状不作限定。本申请的其他实施方式中，定位凸部76收容于定位凹槽106即可。
本申请对曲面镜7上的连接部74的数量及位置不作限定，本申请对镜体72的边缘上的定位凸部76的数量及位置不作限定。例如，如图15a所示，在一种可能的实现方式中，第三边缘726上的连接部74可以省略，第一边缘722上的连接部74靠近第三边缘726设置，第二边缘724上的连接部74靠近第三边缘726设置，第四边缘728上可以凸设两个连接部74。如图15b所示，在一种可能的实现方式中，第四边缘728上的定位凸部76可以省略，第四边缘728上亦未设置连接部74。如图15c所示，在一种可能的实现方式中，第一边缘722上的连接部74可以省略，第二边缘724上的连接部74可以省略，第三边缘726与第四边缘728均设有定位凸部76，通过定位凸部76与定位凹槽106卡接的方式，将曲面镜7固定于外壳上。如图15d所示，在一种可能的实现方式中，第一边缘722、第二边缘724、第三边缘726及第四边缘728均设有定位凸部76。
本申请的其他实施方式中，定位柱18、定位部16、连接柱19均可以省略，直接将连接部74通过胶粘或其他方式固定于外壳1上。
本申请对镜体72的形状不作限定，对镜体72的边缘的数量不作限定，对连接部74的数量不作限定，例如，本申请的其他实施方式中，镜体72可以为圆形，镜体72的边缘数量可以为 一个，连接部74的数量可以为一个，连接部74凸设于镜体72上。
本申请不限定定位凸部76设置于第四边缘728上，定位凸部76设于镜体72的边缘即可。本申请的其他实施方式中，定位凹槽106与定位凸部76可以省略。
本申请的其他实施方式中，曲面镜7可以不收容于主壳体11的内腔，曲面镜7固定盖设于第二开口105上，定位部16可以设于外壳1的外侧，第一定位面162可以位于外壳体1的外侧，定位凹槽106也可以设于外壳1的外侧。
请结合参阅图2b、图11、图16及图17，连接组件8的数量为多个。每个连接组件8包括柔性缓冲件82、压片84、第一固定件86及第二固定件88。柔性缓冲件82夹设于连接部74与压片84之间，连接部74、柔性缓冲件82及压片84依次层叠设置。第一固定件86穿设于压片84及连接部74的凹槽742(图14所示)并与一个定位柱18固定连接，第二固定件88穿设于压片84并与一个连接柱19固定连接。第一固定件86与第二固定件88均对压片84施力，压片84将连接部74压紧于第一定位面162上，实现外壳1与曲面镜7之间的固定连接。柔性缓冲件82还可以位于第一固定件86与第二固定件88之间。在本申请的其他实施方式中，第一固定件86与第二固定件88可以穿设于柔性缓冲件82，柔性缓冲件82的长度可以与压片84的长度小于或等于压片84的长度。
柔性缓冲件82具备弹性变形能力。一方面，柔性缓冲件82可以降低连接部74因压片84压紧而导致破损的可能性，另一方面，柔性缓冲件82可以吸收振动，提高光学显示器10的抗震能力，进而提高光学显示器10的输出成像光的质量。柔性缓冲件82可以选用胶条、泡棉、硅橡胶或其他弹性体材料等。本申请的一些实施方式中，压片84的硬度大于柔性缓冲件82的硬度。压片84可以选用但不限定为钣金件、压铸件、塑料件中的一种。
通过压片84将曲面镜7压紧至外壳1上，将曲面镜7的位置限定于外壳1与压片84之间，提高曲面镜7在外壳1上的位置稳定性，亦降低曲面镜7因局部受力比较大而破损的可能性，延长曲面镜7的使用寿命，有利于提高光学显示器10的使用可靠性。
本申请的一些实施方式中，第一固定件86与第二固定件88为螺钉，定位柱18上设有螺纹孔，连接柱19上设有螺纹孔，第一固定件86与定位柱18螺接，第二固定件88与连接柱19螺接，连接柱19可以为但不限定为自攻钉柱、热熔螺母、模内注塑螺母中的一种。第一固定件86、第二固定件88均穿设于压片84并与外壳1固定连接，而将曲面镜7压紧固定于外壳1上，提高了曲面镜7与外壳1之间的连接强度及连接稳定性。
本申请的一些实施方式中，连接部74、定位凸部76可以省略，而直接通过连接组件8将曲面镜7固定于外壳1上。
本申请的一些实施方式中，外壳1可以省略定位部16、第一定位面162、定位柱18、连接柱19，连接组件8可以省略第二固定件88、压片84，直接通过第一固定件86将柔性缓冲件82及曲面镜7固定于外壳1上，例如，可以将第一固定件86穿过柔性缓冲件82而与外壳1固定连接。
本申请的一些其他实施方式中，交通工具可以为卡车、摩托车、公共汽车、船、直升飞机、割草机、娱乐车、游乐场车辆、施工设备、电车、高尔夫球车、火车、和手推车等，本申请不做特别的限定。
如图18a所示，在一种可能的实现方式中，本申请中的光学显示器10集成于车载显示屏中，车载显示屏可以安装在交通工具1000的座椅后背，车载显示屏还可以安装在副驾驶位置等其他位置，本申请对车载显示屏安装的位置不作限定。
如图18b所示，图18b中是光学显示器10集成于抬头显示器(Head-up display,HUD) 中。HUD可将导航信息、仪表信息等投射在驾驶员的前方视野范围，避免驾驶员低头查看这些信息，从而影响驾驶安全。交通工具还包括反射件201，用于将HUD投射的成像光投射到交通工具的外部。反射件201可以为风挡玻璃。HUD投射的成像光经反射件201反射后，在交通工具的外部形成虚像。其中，HUD的类型包括但不限于风挡(Windshield，W)-HUD、增强现实抬头显示(AR-HUD)等。其中，图18a中光学显示器10从座椅后背部分凸出，光学显示器也可以完全嵌入座椅后背中，即不从座椅后背凸出。
在又一种可能的实现方式中，本申请中的光学显示器10也可以集成于车灯中。除了实现照明功能，车灯还可以实现自适应远光***(Adaptive Driving Beam，ADB)，可以投射出文字，或交通标志等较为复杂的图形，还可以投影视频等画面，增加辅助驾驶或娱乐的功能。
请参见图19，图19为本申请实施例提供的一种交通工具的功能示意图。
交通工具可包括各种子***，例如图示中的传感器***21、控制***22、一个或多个***设备23(图示以一个为例)、电源24、计算机***25和显示***26，上述各个子***之间可以互相通信。显示***26可以包括本申请实施例提供的显示装置。交通工具还可包括其他功能***，例如为交通工具提供动力的引擎***、座舱等等，本申请这里不作限定。
其中，传感器***21可包括若干检测装置，这些检测装置能感受到被测量的信息，并将感受到的信息按照一定规律将其转换为电信号或者其他所需形式的信息输出。如图19示出，这些检测装置可包括全球定位***(Global Positioning System，GPS)、车速传感器、惯性测量单元(Inertial Measurement Unit，IMU)、雷达单元、激光测距仪、摄像装置、轮速传感器、转向传感器、档位传感器、或者其他用于自动检测的元件等等，本申请并不作限定。
控制***22可包括若干元件，例如图示出的转向单元、制动单元、照明***、自动驾驶***、地图导航***、网络对时***和障碍规避***。控制***22可以接收传感器***21发送的信息(例如车速、车距等)，实现自动驾驶、地图导航等功能。
可选地，控制***22还可包括诸如用于控制车辆行驶速度的油门控制器及发动机控制器等元件，本申请不作限定。
***设备23可包括若干元件，例如通信***、触摸屏、用户接口、麦克风以及扬声器等等。其中，通信***用于实现交通工具和除交通工具之外的其他设备之间的网络通信。在实际应用中，通信***可采用无线通信技术或有线通信技术实现交通工具和其他设备之间的网络通信。该有线通信技术可以是指车辆和其他设备之间通过网线或光纤等方式通信。
电源24代表为车辆提供电力或能源的***，其可包括但不限于再充电的锂电池或铅酸电池等。在实际应用中，电源中的一个或多个电池组件用于提供车辆启动的电能或能量，电源的种类和材料本申请并不限定。
交通工具的若干功能可以由计算机***25控制实现。计算机***25可包括一个或多个处理器2501(图示以一个处理器为例示出)和存储器2502(也可称为存储装置)。在实际应用中，该存储器2502也在计算机***25内部，也可在计算机***25外部，例如作为交通工具中的缓存等，本申请不作限定。
其中，处理器2501可包括一个或多个通用处理器，例如图形处理器(graphic processing unit，GPU)。处理器2501可用于运行存储器2502中存储的相关程序或程序对应的指令，以实现车辆的相应功能。
存储器2502可以包括易失性存储器(volatile memory)，例如RAM；存储器也可以包括非易失性存储器(non-vlatile memory)，例如ROM、快闪存储器(flash memory)、HDD或固态硬盘SSD；存储器2502还可以包括上述种类的存储器的组合。存储器2502可用于存储一 组程序代码或程序代码对应的指令，以便于处理器2501调用存储器2502中存储的程序代码或指令以实现车辆的相应功能。本申请中，存储器2502中可存储一组用于车辆控制的程序代码，处理器2501调用该程序代码可控制车辆安全行驶，关于如何实现车辆安全行驶具体在本申请下文详述。
可选地，存储器2502除了存储程序代码或指令之外，还可存储诸如道路地图、驾驶线路、传感器数据等信息。计算机***25可以结合车辆功能框架示意图中的其他元件，例如传感器***中的传感器、GPS等，实现车辆的相关功能。例如，计算机***25可基于传感器***21的数据输入控制交通工具的行驶方向或行驶速度等，本申请不作限定。
显示***26可以与交通工具内的其他***进行交互，例如其可以对控制***22发送的导航信息进行显示、或者对计算机***25和***设备23发送的视频进行播放等。显示***26的具体结构参考上述显示装置的实施例，在此不再赘述。
其中，本实施例图示的四个子***，传感器***21、控制***22、计算机***25和显示***26仅为示例，并不构成限定。在实际应用中，交通工具可根据不同功能对车辆中的若干元件进行组合，从而得到相应不同功能的子***。在实际应用中，交通工具可包括更多或更少的子***或元件，本申请不作限定。
本申请实施例中的交通工具可以是汽车、飞机、轮船、火箭等已知的交通工具，还可以是未来新出现的交通工具。汽车可以是电动汽车、燃油车或混合动力车，例如，纯电动汽车、增程式电动汽车、混合动力电动汽车、燃料电池汽车、新能源汽车等，本申请对此不做具体限定。
本申请不限定光学显示器10应用在交通工具1000上，光学显示器10也可以应用在其他设备上，在一种可能的应用场景中，本申请中的光学显示器集成于近眼显示(Near Eye Display，NED)设备，NED设备，例如可以是AR设备或VR设备，AR设备可以包括但不限于AR眼镜或AR头盔，VR设备可以包括但不限于VR眼镜或VR头盔。请参阅图20，以AR眼镜为例示例，用户可佩戴AR眼镜设备进行游戏、观看视频、参加虚拟会议、或视频购物等。
在另一种可能应用场景中，本申请中的光学显示器10集成于投影仪，请参阅图21，投影仪可以将图像投影到墙面或投影屏幕上。
其中，上述给出的应用场景仅是举例，本申请提供的光学显示器还可以应用在其它可能的场景，例如医疗设备，本申请不做限定。
本申请中所提到的方向用语，例如，“上”、“下”、“前”、“后”、“左”、“右”、“内”、“外”、“侧壁”等，仅是参考附加图式的方向，因此，使用的方向用语是为了更好、更清楚地说明及理解本申请，而不是指示或暗指所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，本文中为部件所编序号本身，例如“第一”、“第二”等，仅用于区分所描述的对象，不具有任何顺序或技术含义。而本申请所说“连接”、“联接”，如无特别说明，均包括直接和间接连接(联接)。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种光学显示器，其特征在于，包括：
    外壳，设有第一开口；
    光源单元，固定于所述外壳上，用于出射成像光；
    透反光学元件，固定于所述外壳上并覆盖所述第一开口，用于透射及反射所述成像光；
    曲面镜，固定于所述外壳上，用于反射所述成像光；
    所述光源单元发出的所述成像光经所述透反光学元件反射到所述曲面镜，所述曲面镜将入射的成像光经所述透反光学元件透射到所述外壳的外部。
  2. 根据权利要求1所述的光学显示器，其特征在于，
    所述外壳包括：
    主壳体，所述第一开口设于所述主壳体上，所述光源单元与所述曲面镜均固定于所述主壳体；以及
    装设部，凸设于所述主壳体的外侧面上，所述透反光学元件与所述装设部固定连接并位于所述主壳体的外部。
  3. 根据权利要求2所述的光学显示器，其特征在于，
    所述装设部包括：
    装设底壁，凸设于所述主壳体的外侧面上并沿所述第一开口的周缘轮廓设置，所述透反光学元件固定于所述装设底壁上；以及
    保护凸缘，凸设于所述装设底壁上，所述保护凸缘围住所述透反光学元件的至少部分边缘。
  4. 根据权利要求2或3所述的光学显示器，其特征在于，
    所述装设底壁设有装设面，所述装设面与所述透反光学元件平行设置。
  5. 根据权利要求1所述的光学显示器，其特征在于，
    所述外壳上设有安装面，所述外壳还包括固定柱，所述固定柱凸设于所述安装面上，
    所述光源单元包括连接设置的发光区与非发光区，所述发光区用于出射成像光，所述非发光区与所述固定柱固定连接。
  6. 根据权利要求5所述的光学显示器，其特征在于，
    所述非发光区上设有定位孔；
    所述外壳还包括凸设于所述安装面上的光源定位柱，所述光源定位柱穿设于所述定位孔。
  7. 根据权利要求6所述的光学显示器，其特征在于，
    所述定位孔包括第一定位孔与第二定位孔，所述光源定位柱包括第一光源定位柱与第二光源定位柱，所述第一光源定位柱穿设于第一定位孔，所述第二光源定位柱穿设于所述第二定位孔；
    在所述第一定位孔与所述第二定位孔的排列方向上，所述第二定位孔的长度大于所述第一定位孔的长度。
  8. 根据权利要求5-7任意一项所述的光学显示器，其特征在于，
    所述光源单元与所述安装面平行设置。
  9. 根据权利要求1所述的光学显示器，其特征在于，
    所述外壳设有定位面，所述曲面镜与所述定位面固定连接。
  10. 根据权利要求1所述的光学显示器，其特征在于，
    所述外壳包括连接设置的第一部分与第二部分，所述光源单元固定于所述第一部分上，所述曲面镜固定于所述第二部分，所述第二部分围成至少部分所述第一开口，所述透反光学元件位于所述第二部分。
  11. 根据权利要求10所述的光学显示器，其特征在于，
    所述光源单元具有发光面，所述透反光学元件具有反射面，所述发光面相对所述反射面倾斜设置。
  12. 根据权利要求1-11任意一项所述的光学显示器，其特征在于，
    所述第一开口包括相对设置的第一装设边缘与第二装设边缘；
    所述光源单元包括发光区，所述发光区包括相对设置的第一发光区边缘与第二发光区边缘；
    所述第一装设边缘上的第一点与所述第二发光区边缘上的第二点位于连接线上，所述第一发光区边缘位于所述连接线的第一侧，所述第二装设边缘位于所述连接线的第二侧，所述光学显示器的眼盒位置位于所述连接线的第一侧。
  13. 根据权利要求1-11任意一项所述的光学显示器，其特征在于，
    所述外壳还设有与第一开口连通设置的第二开口，所述曲面镜位于所述第二开口，所述光学显示器还包括盖体，所述盖体与所述外壳可拆卸连接，所述盖体覆盖所述第二开口。
  14. 一种交通工具，其特征在于，包括根据权利要求1-13任意一项所述的光学显示器，所述光学显示器安装在所述交通工具上。
PCT/CN2023/087172 2022-04-29 2023-04-08 光学显示器及交通工具 WO2023207560A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210469117.9A CN117008328A (zh) 2022-04-29 2022-04-29 光学显示器及交通工具
CN202210469117.9 2022-04-29

Publications (1)

Publication Number Publication Date
WO2023207560A1 true WO2023207560A1 (zh) 2023-11-02

Family

ID=88517307

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/087172 WO2023207560A1 (zh) 2022-04-29 2023-04-08 光学显示器及交通工具

Country Status (2)

Country Link
CN (1) CN117008328A (zh)
WO (1) WO2023207560A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014174229A (ja) * 2013-03-06 2014-09-22 Ricoh Co Ltd 投射光学系およびプロジェクタ装置
CN107003526A (zh) * 2015-03-19 2017-08-01 松下知识产权经营株式会社 平视显示器
US20200070726A1 (en) * 2017-05-31 2020-03-05 Panasonic Intellectual Property Management Co., Ltd. Display system, electronic mirror system and movable-body apparatus equipped with the same
CN213423604U (zh) * 2020-10-12 2021-06-11 Oppo广东移动通信有限公司 近眼显示光学***及穿戴式显示设备
CN217767726U (zh) * 2022-04-29 2022-11-08 华为技术有限公司 光学显示器、座椅及交通工具
CN218158572U (zh) * 2022-04-29 2022-12-27 华为技术有限公司 光学显示器及交通工具

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014174229A (ja) * 2013-03-06 2014-09-22 Ricoh Co Ltd 投射光学系およびプロジェクタ装置
CN107003526A (zh) * 2015-03-19 2017-08-01 松下知识产权经营株式会社 平视显示器
US20200070726A1 (en) * 2017-05-31 2020-03-05 Panasonic Intellectual Property Management Co., Ltd. Display system, electronic mirror system and movable-body apparatus equipped with the same
CN213423604U (zh) * 2020-10-12 2021-06-11 Oppo广东移动通信有限公司 近眼显示光学***及穿戴式显示设备
CN217767726U (zh) * 2022-04-29 2022-11-08 华为技术有限公司 光学显示器、座椅及交通工具
CN218158572U (zh) * 2022-04-29 2022-12-27 华为技术有限公司 光学显示器及交通工具

Also Published As

Publication number Publication date
CN117008328A (zh) 2023-11-07

Similar Documents

Publication Publication Date Title
CN217767726U (zh) 光学显示器、座椅及交通工具
US7643215B2 (en) Head up display device
JP7348750B2 (ja) 情報表示システムとそれを利用した車両用情報表示システム
CN107479196A (zh) 一种ar‑hud双屏显示光学***
US20220388396A1 (en) Light source apparatus, and information display system and head-up display apparatus using the same
CN218159459U (zh) 光学显示器、座椅及交通工具
WO2019184984A1 (zh) 车载显示设备和显示***
CN218141320U (zh) 光学显示器、座椅及交通工具
CN218602006U (zh) 光学显示器、光学显示器组件及交通工具
CN218158572U (zh) 光学显示器及交通工具
US11054640B2 (en) Displaying system and moving object
CN113960801B (zh) 图像生成单元及其抬头显示器
WO2019138627A1 (ja) 虚像表示装置
WO2023207560A1 (zh) 光学显示器及交通工具
WO2023207559A1 (zh) 光学显示器、座椅及交通工具
CN218481927U (zh) 光学显示器、光学显示器组件及交通工具
CN117348320A (zh) 投影装置、交通工具和显示设备
US11215839B2 (en) Combiner head up display with separate infrared function
KR100825276B1 (ko) 차량용 헤드업 디스플레이 장치
CN219065891U (zh) 光机、显示设备及交通工具
WO2024001658A1 (zh) 光学显示器、光学显示器组件及交通工具
WO2023207702A1 (zh) 光学显示器、座椅及交通工具
US11994678B2 (en) Image generation unit comprising a reflecting mirror disposed between a first and a second illumination system and head-up display
WO2024001659A1 (zh) 光学显示器、光学显示器组件及交通工具
WO2023207695A1 (zh) 光学显示器、座椅及交通工具

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23794993

Country of ref document: EP

Kind code of ref document: A1