CN113219670B - Optical-mechanical structure of head-up display system and assembling method of cemented lens group of optical-mechanical structure - Google Patents
Optical-mechanical structure of head-up display system and assembling method of cemented lens group of optical-mechanical structure Download PDFInfo
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- CN113219670B CN113219670B CN202110550234.3A CN202110550234A CN113219670B CN 113219670 B CN113219670 B CN 113219670B CN 202110550234 A CN202110550234 A CN 202110550234A CN 113219670 B CN113219670 B CN 113219670B
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- 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
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- 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
- G02B27/0149—Head-up displays characterised by mechanical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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- 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
- G02B27/0149—Head-up displays characterised by mechanical features
- G02B2027/0169—Supporting or connecting means other than the external walls
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Abstract
The invention relates to an optical-mechanical structure of a head-up display system and an assembly method of a cementing mirror group of the optical-mechanical structure, wherein the optical-mechanical structure of the head-up display system comprises a projector unit, and a diffusion sheet assembly, a circular transmission mirror assembly, a reflecting mirror group and the cementing mirror group which are sequentially arranged on a projection light path of the projector unit, and the optical-mechanical structure of the head-up display system adopts a transmission type light path design, so that a larger view field is obtained, a longer projection distance is realized, a light path is shortened by arranging a turn-back light path, the dimension is reduced, meanwhile, the energy loss caused by multiple reflections is avoided, and the brightness and the definition of a projection image are ensured.
Description
Technical Field
The invention relates to the technical field of optical precision mechanical structures, in particular to an optical-mechanical structure of a large-view-field transmission type head-up display system and an assembling method of a cemented lens group of the optical-mechanical structure.
Background
The head-up display system is called a parallel display system, namely a W-HUD (Windshield HUD) for short, and is a multifunctional instrument panel which is operated by a driver in a blind mode. The head-up display system is used for projecting important information such as speed per hour, navigation and the like onto a windshield in front of a driver, so that the driver can see the important driving information such as speed per hour, navigation and the like without lowering head or turning head as much as possible. The application of the W-HUD on airplanes is common, particularly fighters, but the W-HUD is very limited in the automobile and ship industries due to the high cost, and only matched with high-grade automobiles in the automobile industry. The inexpensive head-up display products currently available on the market are C-HUDs projected on a single small screen instead of W-HUDs on a windshield, and these products are inexpensive but cannot be integrated with a car or a ship and exist separately. Moreover, HUD products, whether carried on high-grade automobiles or independent in the market, have many disadvantages: because the existing W-HUD is in a reflective optical design, the reflective optical design is limited by the size of a reflector and cannot obtain a larger field of view, and the existing reflective W-HUD has low resolution and blurred images; in addition, the existing reflective W-HUD cannot realize remote projection, if the HUD needs to be designed to reflect for multiple times to obtain the remote projection and obtain a larger view field, the brightness can be reduced due to the multiple reflection, the definition of image information is lower, and the structure of the multiple reflection type can cause the whole HUD to be very large in volume, cannot be installed on a small and medium-sized automobile, and is limited in use range.
Disclosure of Invention
The invention aims to provide an optical-mechanical structure of a head-up display system and an assembly method of a gluing mirror group of the optical-mechanical structure.
The invention provides an optical-mechanical structure of a head-up display system, which comprises a projector unit, and a diffusion sheet assembly, a circular transmission lens assembly, a reflector assembly and a cemented lens assembly which are sequentially arranged on a projection light path of the projector unit, wherein the projector unit comprises a support structure and a projector arranged on the support structure, the projector is used for projecting images, the diffusion sheet assembly is arranged in a projection light path of the projector and is used for processing the images projected by the projector to make the images uniform, the circular transmission lens assembly is used for transmitting the images processed by the diffusion sheet assembly, the reflector assembly is used for reflecting the images transmitted by the circular transmission lens assembly to the cemented lens assembly, the cemented lens assembly is used for transmitting the images reflected by the reflector to form a view field surface, and an included angle of 45 degrees is formed between the reflector assembly and the cemented lens assembly, the round transmission mirror assembly and the cemented mirror assembly are arranged at an included angle of 90 degrees.
In an embodiment of the present invention, the support structure includes a support plate and a plurality of copper pillars supporting the support plate, an air flowing space of the projector unit is formed between the plurality of copper pillars, and the projector is supported by the plurality of copper pillars and located in the air flowing space.
In an embodiment of the invention, the projector unit further includes a plurality of heat dissipation fins disposed on both sides of the projector for dissipating heat.
In an embodiment of the present invention, the diffusion sheet assembly includes a diffusion sheet fixing seat and a diffusion sheet fixed in the diffusion sheet fixing seat by a plurality of first clips.
In an embodiment of the present invention, the circular transmission mirror assembly includes a mirror base, two circular spherical lenses disposed in the assembling groove of the mirror base, a spacer ring disposed between the two circular spherical lenses, and a pressing ring for pressing and fixing the two circular spherical lenses.
In an embodiment of the invention, the reflector set includes a reflector holder and a reflector fixed in the reflector holder by a plurality of second clips.
In an embodiment of the present invention, the cemented lens group is a rectangular cemented lens group for forming a rectangular field of view, the rectangular cemented lens group includes a rectangular lens base, a double cemented lens disposed on the rectangular lens base, and a pressing plate for fixing the double cemented lens on the rectangular lens base, and the double cemented lens is formed by cutting a circular transmission lens and a rectangular lens after being cemented.
In an embodiment of the invention, the rectangular lens base has an installation groove, and fixing grooves are formed on two sides of the rectangular lens of the double cemented lens, and the fixing grooves are matched with the installation groove, so that the double cemented lens can be fixed in the installation groove.
In an embodiment of the invention, the pressing plate is a rectangular pressing plate, and a spherical concave surface having a curvature radius consistent with that of the surface shape of the circular transmission lens of the double cemented lens is formed on the inner walls of the two sides of the rectangular pressing plate, so that the rectangular pressing plate can be attached to the double cemented lens to fix the double cemented lens on the rectangular lens base.
In an embodiment of the invention, the optical-mechanical structure of the head-up display system further includes a housing, the housing includes a bottom plate and a housing adapted to the bottom plate, and a receiving cavity is formed between the bottom plate and the housing for receiving the projector unit, the diffuser assembly, the circular transmissive mirror assembly, the reflector assembly, and the cemented mirror assembly.
The invention also provides an assembling method of the gluing lens group of the optical-mechanical structure of the head-up display system, wherein the gluing lens group is a rectangular gluing lens group, and the assembling method comprises the following steps:
gluing the round transmission lens with the rectangular lens, and cutting off the part of the round transmission lens protruding out of the rectangular lens to obtain a double-glued lens;
processing fixing grooves matched with the mounting grooves of the rectangular lens base on two sides of the rectangular lens of the double-cemented lens, and mounting the double-cemented lens in the rectangular lens base through the fixing grooves; and
and processing the inner walls of two sides of the pressing plate to form spherical concave surfaces which are consistent with the surface-shaped curvature radius of the double cemented lens, wherein the pressing plate is in contact with the round transmission lens of the double cemented lens through the spherical concave surfaces in a fitting manner, and the double cemented lens is fixed on the rectangular lens base, so that the rectangular lens base and the pressing plate are respectively clamped and fixed on two sides of the double cemented lens to form a state of the double cemented lens.
The invention can realize the following beneficial effects:
(1) by adopting a transmission type optical design mode, a larger view field is obtained, and a longer projection distance is realized;
(2) the size of the optical-mechanical structure is reduced by adopting a transmission type optical design and a light path turning back mode, so that the optical-mechanical structure with small volume is provided;
(3) energy loss caused by multiple reflections is avoided by adopting a transmission type optical design mode, the brightness and the definition of a projected image are ensured, and the projected image can be seen clearly even under the condition of direct sunlight in the daytime;
(4) the mass of the supporting structure is favorably and uniformly distributed to the copper columns by arranging the copper columns on the projector unit, so that the mass is reduced, the air flowing space is increased, and the integral heat dissipation is facilitated;
(5) the double-cemented lens can be stably clamped and fixed between the rectangular lens seat and the pressing plate in a mode that the rectangular lens of the double-cemented lens is processed to form a fixed groove and the inner side of the pressing plate is processed to form a spherical concave surface, so that the surface pressure of the lens of the double-cemented lens can be dispersed, the change of the surface shape of the lens caused by pressure concentration is avoided, and the distortion of an image formed by projection of the cemented lens group is avoided.
Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.
Drawings
Fig. 1 is a three-dimensional structure diagram of an optical-mechanical structure of the head-up display system according to the present invention;
FIG. 2 is a schematic diagram of a part of an optical-mechanical structure of the head-up display system shown in FIG. 1;
FIG. 3 is a schematic diagram of a projector unit of the optical-mechanical structure of the head-up display system shown in FIG. 1;
FIG. 4 is a schematic view of a diffuser assembly of the opto-mechanical configuration of the head-up display system shown in FIG. 1;
FIGS. 5A and 5B are schematic diagrams of a circular transmissive mirror assembly of the optical-mechanical configuration of the heads-up display system of FIG. 1;
FIG. 6 is a schematic diagram of a mirror group of an opto-mechanical structure of the head-up display system shown in FIG. 1;
FIG. 7 is a schematic diagram of a glue lens assembly of the optical-mechanical structure of the head-up display system shown in FIG. 1;
fig. 8 is an assembly diagram of a glue lens assembly of the optical-mechanical structure of the head-up display system shown in fig. 7.
The reference numbers illustrate: an opto-mechanical configuration 100 of a heads-up display system; a projector unit 10; a support structure 11; a support plate 111; a copper pillar 112; an air flow space 110; a projector 12; a heat sink 13; a diffusion sheet assembly 20; a diffusion sheet fixing base 21; a first jaw 22; a diffusion sheet 23; a circular transmission mirror assembly 30; a lens mount 31; a fitting groove 310; a circular spherical lens 32; a spacer 33; a pressing ring 34; a mirror group 40; a mirror holder 41; a second jaw 42; a reflecting mirror 43; a gluing lens group 50; a rectangular lens base 51; a mounting groove 510; a glue injection hole 511; a double cemented lens 52; a rectangular lens 521; a fixing groove 5210; a circular transmission lens 522; a pressure plate 53; a spherical concave surface 531; a housing 60; a base plate 61; a housing 62; the housing 601.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "vertical," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
As shown in fig. 1 to 8, the present invention provides an optical-mechanical structure 100 of a head-up display system and an assembly method of a glue lens assembly 50 thereof, and more particularly, to an optical-mechanical structure 100 of a large-field transmission type head-up display system.
Specifically, as shown in fig. 1 to 7, the optical-mechanical structure 100 of the head-up display system includes a projector unit 10, and a diffusion sheet assembly 20, a circular transmissive mirror assembly 30, a mirror assembly 40, and a cemented mirror assembly 50 sequentially disposed on a projection optical path of the projector unit 10, the projector unit 10 comprises a support structure 11 and a projector 12 arranged to the support structure 11, the projector 12 is used to project an image, the diffuser assembly 20 is disposed in a projection light path of the projector 12, for processing the image projected by the projector 12 to make the image uniform, the circular transmissive mirror assembly 30 for transmitting the image processed by the diffuser assembly 20, the mirror assembly 40 is used to reflect the image transmitted by the circular transmissive mirror assembly 30 to the cemented mirror assembly 50, the cemented mirror group 50 is used to transmit the image reflected by the mirror 43 to form a field of view.
In particular, as shown in fig. 2, the mirror group 40 and the cemented mirror group 50 are arranged at an angle of 45 °, and the circular transmissive mirror group 30 and the cemented mirror group 50 are arranged at an angle of 90 °, so that the mirror group 40 can vertically turn back the projection light path of the projector 12 once, so as to ensure that the projector 12 has a longer projection distance, and at the same time, can shorten the projection light path of the projector 12, thereby reducing the size dimension of the optical-mechanical structure 100 of the head-up display system, and providing a small-sized head-up display system.
In other words, in the present invention, the reflector assembly 40 and the cemented mirror assembly 50 are arranged at an included angle of 45 degrees, and the circular transmission mirror assembly 30 and the cemented mirror assembly 50 are arranged at an included angle of 90 degrees, so as to turn back the projection light path of the projector unit 10, which is beneficial to achieving a longer projection distance, and simultaneously, the overall size of the optical-mechanical structure 100 of the head-up display system can be reduced, which is beneficial to reducing the volume of the optical-mechanical structure 100 of the head-up display system, and is beneficial to achieving the possibility that a small and medium-sized vehicle can be equipped with the optical-mechanical structure 100 of the head-up display system, and expanding the application range of the optical-mechanical structure 100 of the head-up display system.
It can be understood that the optical-mechanical structure 100 of the head-up display system of the present invention adopts the diffusion sheet assembly 20, the circular transmissive mirror assembly 30 and the glue mirror assembly 50 to transmit the image projected by the projector unit 10, and adopts the mirror assembly 40 to turn back the projection light path of the projector unit 10 once, so that the optical-mechanical structure 100 of the head-up display system of the present invention is a transmissive optical-mechanical structure, performs only one reflection, and can obtain a large field of view.
It can be further understood that, the optical-mechanical structure 100 of the head-up display system adopts the diffusion sheet assembly 20, the circular transmissive mirror assembly 30 and the cemented mirror assembly 50 to transmit the image projected by the projector unit 10, so that energy loss caused by multiple reflections can be reduced, brightness and definition of the projected image can be ensured, and the projected image of the projector unit 10 can still be clearly seen under the condition of direct sunlight in the daytime.
It should be noted that the optical-mechanical structure 100 of the head-up display system includes a housing 60, the housing 60 includes a bottom plate 61 and a housing 62 adapted to the bottom plate 61, and a receiving cavity 601 is formed between the bottom plate 61 and the housing 62 for receiving the projector unit 10, the diffusion plate assembly 20, the circular transmissive mirror assembly 30, the mirror group 40 and the cemented mirror group 50.
Specifically, the projector unit 10, the diffusion sheet assembly 20, the circular transmissive mirror assembly 30, the mirror group 40, and the cemented mirror group 50 are all mounted on the base plate 61.
Further, as shown in fig. 3, the support structure 11 includes a support plate 111 and a plurality of copper pillars 112 supporting the support plate 111, the plurality of copper pillars 112 form an air flowing space 110 of the projector unit 10 therebetween, and the projector 12 is supported by the plurality of copper pillars 112 and is located in the air flowing space 110.
It can be understood that the heat of the optical-mechanical structure 100 of the head-up display system is mainly generated in the projector unit 10, so that the heat dissipation design of the projector unit 10 is performed, by disposing a plurality of copper pillars 112 on the projector unit 10, the mass of the support structure 11 is favorably and uniformly distributed to the plurality of copper pillars 112, the mass is reduced, the air flowing space is increased, and the projector 12 is disposed in the air flowing space 110, which is favorable for the overall heat dissipation.
Further, the projector unit 10 further includes a plurality of heat radiating fins provided on both sides of the projector 12 for radiating heat.
As shown in fig. 4, the diffusion sheet assembly 20 includes a diffusion sheet fixing base 21 and a diffusion sheet 23 fixed in the diffusion sheet fixing base 21 by a plurality of first clips 22. The purpose of disposing the diffuser assembly 20 in the projection optical path of the projector unit 10 is to make the overall image projected by the projector 12 relatively uniform.
As shown in fig. 5A and 5B, the circular transmission mirror assembly 30 includes a mirror base 31, two circular spherical lenses 32 disposed in the fitting groove 310 of the mirror base 31, a spacer 33 disposed between the two circular spherical lenses 32, and a pressing ring 34 for pressing and fixing the two circular spherical lenses 32.
It should be noted that the circular transmissive mirror assembly 30 is used for expanding the beam, that is, for expanding the light emitted from the projector unit 10, and has a shaping function, so as to stabilize the image. The circular transilluminator assembly 30, as part of the optical system of the present invention, allows the opto-mechanical configuration 100 of the heads-up display system to display larger images and at greater distances.
As shown in fig. 2 and 6, the mirror group 40 includes a mirror fixing base 41 and a mirror 43 fixed in the mirror fixing base 41 by a plurality of second clips 42. In the preferred embodiment of the present invention, the reflecting mirror 43 is a rectangular reflecting mirror 43, the reflecting mirror 40 and the glue mirror group 50 are arranged at an angle of 45 °, and the circular transmissive mirror assembly 30 and the glue mirror group 50 are arranged at an angle of 90 °, so that the reflecting mirror 40 can vertically reflect the image transmitted through the circular transmissive mirror assembly 30 to the glue mirror group 50.
Correspondingly, the shapes of the housing 60 and the bottom plate 61 are adapted to the shapes of the projector unit 10, the diffusion sheet assembly 20, the circular transmissive mirror assembly 30, the mirror group 40, and the cemented mirror group 50. Specifically, the housing 60 includes three portions, a first portion having a rectangular parallelepiped structure with sidewalls extending at an angle of 45 ° from the projector unit 10 to the mirror group 40, a second portion extending bent at an angle of 90 ° from the first portion for accommodating the projector unit 10, the diffusion sheet assembly 20, the circular transmission mirror assembly 30, and the mirror group 40, and a second portion for accommodating the cemented mirror group 50. The bottom plate 61 is composed of a first rectangular plate portion having a notch at an angle of 45 ° and a second rectangular plate portion extending from the first rectangular plate portion to form the first rectangular plate portion, the first rectangular plate portion is used for mounting the projector unit 10, the diffusion sheet assembly 20, the circular transmission mirror assembly 30, and the mirror group 40, and the second rectangular plate portion is used for mounting the cemented mirror group 50.
As shown in fig. 7 and 8, in the preferred embodiment of the present invention, the cemented lens group 50 is a rectangular cemented lens group for forming a rectangular field of view to obtain a larger field of view. The rectangular cemented lens group comprises a rectangular lens base 51, a double cemented lens 52 arranged on the rectangular lens base 51 and a pressing plate 53 used for fixing the double cemented lens 52 on the rectangular lens base 51, wherein the double cemented lens 52 is formed by cutting a circular transmission lens 522 and a rectangular lens 521 after being cemented.
It should be understood that in some embodiments of the present invention, the cemented lens group 50 may also adopt other cemented lens groups 50, such as a cemented lens group 50 in a shape of a circle, a triangle, a pentagon, a hexagon, etc., that is, in practical applications, the cemented lens group 50 in a corresponding shape may be assembled according to a viewing field surface in a desired shape, which is not limited by the present invention.
Further, the rectangular lens base 51 has a mounting groove 510, fixing grooves 5210 are formed on two sides of the rectangular lens 521 of the cemented doublet 52, and the fixing grooves 5210 are matched with the mounting groove 510, so that the cemented doublet 52 can be fixed in the mounting groove 510.
Furthermore, the pressing plate 53 is a rectangular pressing plate, and a spherical concave surface 531 having a curvature radius identical to that of the surface of the circular transmission lens 522 of the double cemented lens 52 is formed on the inner walls of the two sides of the rectangular pressing plate, so that the rectangular pressing plate can be attached to the double cemented lens 52 to fix the double cemented lens 52 on the rectangular lens holder 51.
It is understood that, in the preferred embodiment of the present invention, since the optical-mechanical structure 100 of the head-up display system projects a rectangular field of view, in order to reduce the size dimension, the unnecessary portion of the circular transmission lens 522 of the double cemented lens 52 needs to be cut off, and the required effective rectangular lens 521 portion is reserved, i.e. the portion protruding from the rectangular lens 521 after the circular transmission lens 522 is cemented to the rectangular lens 521, is cut off, so as to obtain the double cemented lens 52. Moreover, since the double cemented lens 52, which is rectangular as a whole, cannot be fixed by the circular pressing ring 34, the double cemented lens 52 needs to be fixed by the rectangular pressing plate 53, that is, the pressing plate 53 is a rectangular pressing plate. When the fixing is carried out by adopting a pressing plate fixing mode, the condition of point contact fixing can occur, the fixing is easy to be unstable, the pressure of the contact part of the lens and the pressing plate is easy to concentrate on the surface of the lens, the surface of the lens is seriously deformed, and the image is easy to distort.
Therefore, the present invention provides a method for assembling and fixing the cemented lens assembly 50: the fixing grooves 5210 are respectively formed on both sides of the rectangular mirror 521 of the cemented doublet 52, and the side of the cemented doublet 52 having the fixing grooves 5210 is fixed to the rectangular mirror base 51 in contact therewith, and the surface of the cemented doublet 52 is not a portion required for imaging; and the inner walls of the two sides of the rectangular pressing plate are processed to form spherical concave surfaces 531 which are consistent with the surface-shaped curvature radius of the circular transmission lens 522 of the double cemented lens 52, so that the rectangular pressing plate can fix the double cemented lens 52 on the rectangular lens base 51 in a manner of being in contact with the double cemented lens 52 in a fitting manner, the cemented lens group 50 obtained by adopting the fixing manner is stable in structure, meanwhile, the pressure concentration on the lens surface of the double cemented lens 52 is not caused, and the image distortion caused by the change of the lens surface type is not caused.
In other words, the present invention realizes the assembly of the cemented lens assembly 50 by clamping and fixing the cemented lens 52 on both sides of the cemented lens 52 by the rectangular lens holder 51 and the rectangular pressing plate, respectively.
It can be understood that, in order to make the structure of the cemented lens group 50 more compact, the circular transmission lens 522 of the cemented doublet 52 is cut into a rectangle, and the fixing grooves 5210 are processed on both sides of the rectangular lens 521 of the cemented doublet 52, so that the envelope size of the cemented doublet 52 is reduced, and the surface of the cemented doublet 52 is pressed and contacted by the fixing grooves 5210, thereby ensuring that the surface shape of the cemented doublet 52 is not distorted under pressure and ensuring better imaging quality.
It is worth mentioning that the rectangular lens base 51 is further provided with a plurality of glue injection holes 511 for injecting glue along the periphery of the rectangular lens base 51 so as to further fix the rectangular lens base 51 and the double cemented lens 52, thereby ensuring the structural stability of the cemented lens group 50.
It is understood that the present invention also provides in another aspect a method for assembling the cemented lens assembly 50, wherein the cemented lens assembly 50 is a rectangular cemented lens assembly, comprising the steps of:
gluing the circular transmission lens 522 and the rectangular lens 521, and cutting off the part of the circular transmission lens 522 protruding out of the rectangular lens 521 to obtain the double-glued lens 52;
the fixing grooves 5210 matched with the mounting grooves 510 of the rectangular lens base 51 are processed on two sides of the rectangular lens 521 of the double cemented lens 52, and the double cemented lens 52 is mounted in the rectangular lens base 51 through the fixing grooves 5210; and
the inner walls of the two sides of the pressing plate 53 are processed to form the spherical concave surfaces 531 with the same surface-shaped curvature radius as the double cemented lens 52, the pressing plate 53 is in contact with the circular transmission lens 522 of the double cemented lens 52 through the spherical concave surfaces 531, and the double cemented lens 52 is fixed on the rectangular lens base 51, so that the rectangular lens base 51 and the pressing plate 53 are respectively clamped and fixed on the two sides of the double cemented lens 52 to form a state that the double cemented lens 52 is fixed on the two sides of the double cemented lens 52.
It should be understood that the opto-mechanical structure 100 of the head-up display system of the present invention can be applied to the industries of automobiles, airplanes, ships, etc., and the present invention is not limited to the specific application of the opto-mechanical structure 100 of the head-up display system.
In summary, the invention provides an optical-mechanical structure 100 of a large-field-of-view transmissive heads-up display system and an assembly method of a glue lens group 50 thereof, wherein the optical-mechanical structure 100 of the heads-up display system adopts a transmissive design, a large field of view is obtained, a long projection distance is realized, a light path is shortened by arranging a return light path, the dimension of the size is reduced, energy loss caused by multiple reflections is avoided, and the brightness and definition of a projected image are ensured. Moreover, the optical-mechanical structure 100 of the head-up display system uniformly distributes the mass of the supporting structure 11 to the plurality of copper pillars 112 by adopting the manner of the plurality of copper pillars 112, so that the mass is reduced, and meanwhile, the space for air flowing is increased, which is beneficial to the whole heat dissipation. In addition, the optical-mechanical structure 100 of the head-up display system processes the rectangular lens 521 of the double cemented lens 52 to form the fixing groove 5210 and processes the inner side of the pressing plate 53 to form the spherical concave surface 531, so that the double cemented lens 52 can be stably clamped and fixed between the rectangular lens base 51 and the pressing plate 53, and the cemented lens set 50 with a stable structure is obtained, thereby dispersing the surface pressure of the lens of the double cemented lens 52, avoiding the change of the surface shape of the lens caused by the pressure concentration, and avoiding the distortion of the image projected and formed by the cemented lens set 50.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express the preferred embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as the limitation of the invention patent scope. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. An optical-mechanical structure of a head-up display system is characterized by comprising a projector unit, a diffusion sheet assembly, a circular transmission mirror assembly, a reflector assembly and a cemented mirror assembly, wherein the diffusion sheet assembly, the circular transmission mirror assembly, the reflector assembly and the cemented mirror assembly are sequentially arranged on a projection light path of the projector unit, the projector unit comprises a support structure and a projector arranged on the support structure, the projector is used for projecting images, the diffusion sheet assembly is arranged in the projection light path of the projector and is used for processing the images projected by the projector so that the images are uniform, the circular transmission mirror assembly is used for transmitting the images processed by the diffusion sheet assembly, the reflector assembly is used for reflecting the images transmitted by the circular transmission mirror assembly to the cemented mirror assembly, the cemented mirror assembly is used for transmitting the images reflected by the reflector to form a view field surface, and an included angle of 45 degrees is formed between the reflector assembly and the cemented mirror assembly, the circular transmission lens assembly and the cemented lens group are arranged at an included angle of 90 degrees; the diffusion sheet component comprises a diffusion sheet fixing seat and a diffusion sheet fixed in the diffusion sheet fixing seat through a plurality of first clamping sheets; the circular transmission lens assembly comprises a lens base, two circular spherical lenses arranged in an assembling groove of the lens base, a space ring arranged between the two circular spherical lenses and a pressing ring used for pressing and fixing the two circular spherical lenses; the veneer mirror group is rectangle veneer mirror group for form rectangular visual field face, rectangle veneer mirror group include the rectangle mirror seat, set up in the two cemented lens of rectangle mirror seat and be used for with two cemented lens are fixed clamp plate on the rectangle mirror seat, two cemented lens are formed by cutting behind circular transmission lens and the rectangle lens veneer.
2. The optical-mechanical structure of the head-up display system according to claim 1, wherein the supporting structure comprises a supporting plate and a plurality of copper pillars supporting the supporting plate, an air flowing space of the projector unit is formed between the plurality of copper pillars, and the projector is supported by the plurality of copper pillars and is located in the air flowing space.
3. The opto-mechanical configuration of a heads-up display system of claim 2 wherein the projector unit further comprises a plurality of heat sinks disposed on either side of the projector for dissipating heat.
4. The opto-mechanical configuration of a heads-up display system of any one of claims 1 to 3 wherein the set of mirrors comprises a mirror mount and a mirror mounted in the mirror mount by a plurality of second clips.
5. The opto-mechanical architecture of the heads-up display system of claim 1, wherein the rectangular lens mount has a mounting groove, and fixing grooves are formed on two sides of the rectangular lens of the dual cemented lens, the fixing grooves being adapted to the mounting groove so that the dual cemented lens can be fixed in the mounting groove.
6. The opto-mechanical structure of the heads-up display system of claim 5 wherein the press plate is a rectangular press plate, and the inner walls of the two sides of the rectangular press plate are formed with spherical concave surfaces with the same radius of curvature as the surface shape of the circular transmission lens of the double cemented lens, so that the rectangular press plate can be attached to the double cemented lens to fix the double cemented lens on the rectangular lens holder.
7. The opto-mechanical structure of the heads-up display system according to any one of claims 1 to 3, further comprising a housing, the housing comprising a bottom plate and a housing adapted to the bottom plate, the bottom plate and the housing forming a receiving cavity therebetween for receiving the projector unit, the diffuser assembly, the circular transmissive mirror assembly, the mirror assembly and the glue assembly.
8. The method for assembling a set of glue mirrors of an opto-mechanical arrangement of a head-up display system according to any of claims 1-7, wherein said set of glue mirrors is a rectangular set of glue mirrors, comprising the steps of:
gluing the round transmission lens with the rectangular lens, and cutting off the part of the round transmission lens protruding out of the rectangular lens to obtain a double-glued lens;
processing fixing grooves matched with the mounting grooves of the rectangular lens base on two sides of the rectangular lens of the double-cemented lens, and mounting the double-cemented lens in the rectangular lens base through the fixing grooves; and
and processing the inner walls of two sides of the pressing plate to form spherical concave surfaces which are consistent with the surface-shaped curvature radius of the double cemented lens, wherein the pressing plate is in contact with the round transmission lens of the double cemented lens through the spherical concave surfaces in a fitting manner, and the double cemented lens is fixed on the rectangular lens base, so that the rectangular lens base and the pressing plate are respectively clamped and fixed on two sides of the double cemented lens to form a state of the double cemented lens.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203773159U (en) * | 2014-02-28 | 2014-08-13 | 北京北大千方科技有限公司 | Vehicle-mounted head-up display system |
| CN106772897A (en) * | 2016-12-16 | 2017-05-31 | 中国科学院长春光学精密机械与物理研究所 | The mounting and positioning device of lens in a kind of cold optical technology |
| CN106941769A (en) * | 2016-11-16 | 2017-07-11 | 林进东 | A kind of good radiator structure part of combination property and its preparation technology |
| CN109813450A (en) * | 2019-03-27 | 2019-05-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of transient state imaging type infrared multispectral temperature field measuring apparatus |
| CN109827149A (en) * | 2019-03-18 | 2019-05-31 | 广东烨嘉光电科技股份有限公司 | A kind of the flashlight lens system and its design method of rectangular light spot |
| CN109991737A (en) * | 2017-12-29 | 2019-07-09 | 深圳点石创新科技有限公司 | Optical projection system |
| CN110375269A (en) * | 2019-07-30 | 2019-10-25 | 广州市焦汇光电科技有限公司 | Rectangular light spot lens |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW517855U (en) * | 2002-05-30 | 2003-01-11 | Progressive Optoelectronics Te | Optical channel structure |
| GB201508006D0 (en) * | 2015-05-11 | 2015-06-24 | The Technology Partnership Plc | Optical system for a display with an off axis projector |
| CN208636513U (en) * | 2018-08-07 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | Lens module |
-
2021
- 2021-05-20 CN CN202110550234.3A patent/CN113219670B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203773159U (en) * | 2014-02-28 | 2014-08-13 | 北京北大千方科技有限公司 | Vehicle-mounted head-up display system |
| CN106941769A (en) * | 2016-11-16 | 2017-07-11 | 林进东 | A kind of good radiator structure part of combination property and its preparation technology |
| CN106772897A (en) * | 2016-12-16 | 2017-05-31 | 中国科学院长春光学精密机械与物理研究所 | The mounting and positioning device of lens in a kind of cold optical technology |
| CN109991737A (en) * | 2017-12-29 | 2019-07-09 | 深圳点石创新科技有限公司 | Optical projection system |
| CN109827149A (en) * | 2019-03-18 | 2019-05-31 | 广东烨嘉光电科技股份有限公司 | A kind of the flashlight lens system and its design method of rectangular light spot |
| CN109813450A (en) * | 2019-03-27 | 2019-05-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of transient state imaging type infrared multispectral temperature field measuring apparatus |
| CN110375269A (en) * | 2019-07-30 | 2019-10-25 | 广州市焦汇光电科技有限公司 | Rectangular light spot lens |
Non-Patent Citations (3)
| Title |
|---|
| 多组元透镜的安装和定位研究;张丽敏等;《激光与光电子学进展》;20150410(第04期);正文第2页第2-4段 * |
| 对平视显示器光学系统的分析;李春亮;《应用光学》;19830302(第01期);全文 * |
| 平视显示器的设计;杨秀芝;《福州大学学报(自然科学版)》;20000801(第04期);全文 * |
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