CN105445936B - Optical imaging device - Google Patents

Abstract

The invention provides an optical imaging device, which comprises a display module and a spherical mirror, wherein the display module is arranged on a vehicle body of a vehicle, is positioned at the upper edge of a windshield of the vehicle and is provided with an image output end, and the image output end outputs a display image. The spherical mirror is arranged on a vehicle body between an instrument panel seat and a windshield of the vehicle and is positioned on a transmission path of the display image, the surface of the concave spherical mirror faces the windshield, and the display module is positioned in the focal length of the spherical mirror to generate an amplified display image which is equivalent to the display image positioned in a remote place.

Description

optical imaging device

technical field

The present invention relates to an imaging device, in particular to an optical imaging device.

Background technique

Various display devices used in vehicles have been successively developed, such as driving recorders, satellite navigation, head up displays (head up displays, HUDs), among which head up displays have been widely used. However, taking the head-up display as an example, the displayed images are mostly projected on the windshield at the front left or right front of the dashboard seat. During driving, users mostly focus on the road conditions directly ahead. When users want to watch the images displayed on the head-up display during driving, users need to move their eyes to the front of the instrument panel seat or the windshield on the right front , causing the focal length of the user's eyes to change constantly, the user's attention cannot always be concentrated on the road conditions directly ahead, which easily leads to the occurrence of traffic accidents.

In view of the above problems, the present invention provides an optical imaging device, through which the user watches the magnified display image directly in front, so that the user changes the focal length of his eyes slightly during driving to avoid The occurrence of traffic accidents.

Contents of the invention

The object of the present invention is to provide an optical imaging device, which can generate a display image that is magnified and equivalently positioned at a distance.

The object of the present invention is to provide an optical imaging device, which has a simple structure and can reduce its manufacturing cost.

In order to achieve the above-mentioned purposes and effects, the present invention discloses an optical imaging device, which includes: a display module, which is arranged in a body of a car and located on the upper edge of a windshield of the car , and has an image output terminal, which outputs a display image; and a spherical mirror, which is arranged on the vehicle body between a dashboard seat of the automobile and the windshield, and is located at the transmission of the display image On the way, the concave surface of the spherical mirror faces the windshield; wherein the display module is located within the focal length of the spherical mirror.

Description of drawings

Fig. 1: it is the schematic diagram of the optical imaging device of the first embodiment of the present invention;

Fig. 2: It is the imaging schematic diagram of the optical imaging device of the first embodiment of the present invention;

Fig. 3: It is the usage state diagram of the optical imaging device of the first embodiment of the present invention;

Fig. 4: it is the block diagram of the display module of the second embodiment of the present invention;

Fig. 5: It is the schematic diagram of the display module of the third embodiment of the present invention;

Fig. 6: it is the schematic diagram of the optical imaging device of the 4th embodiment of the present invention;

Fig. 7: It is the usage state diagram of the optical imaging device of the fourth embodiment of the present invention; And

FIG. 8 : It is a schematic diagram of an optical imaging device according to a fifth embodiment of the present invention.

[Description of drawing number comparison]

1 Optical imaging device

10 spherical mirror

101 surface

102a first side wall

102b Second side wall

103 pivot shaft

11 Display Module

110 display unit

1101, 1101' display image

111 Video output terminal

112 wireless transmission unit

113 Photography unit

114 speaker units

115 storage units

116 optical processing unit

1161 Reflector

1162 Convex lens

118 cylindrical shell

1180 side wall

1181 opening

12 Polarizers

121 plane mirror

122 polarizing film

13 Optical film

131 polarizing film

132 reflective film

15 housing

151 openings

152 storage space

2 cars

21 Dashboard seat

22 windshield

23 Body

231 Groove

232 openings

24 driver's seat

3 users

f focal length

Detailed ways

In order to make the structural features of the present invention and the achieved effects have a further understanding and recognition, preferred embodiments and detailed descriptions are specially used, which are described as follows:

Please refer to Fig. 1 and Fig. 2, which are schematic diagrams and imaging schematic diagrams of the optical imaging device of the first embodiment of the present invention; as shown in the figure, this embodiment provides an optical imaging device 1, which is a head-up display device for a vehicle . The optical imaging device 1 of the present embodiment comprises a spherical mirror 10 and a display module 11, the display module 11 is arranged on a vehicle body 23 of an automobile 2, and is positioned at the upper edge of a windshield 22 of the automobile 2, and has an image The output terminal 111 , the image output terminal 111 outputs a display image 1101 . The spherical mirror 10 is embedded in a groove 231 of the vehicle body 23 between an instrument panel seat 21 and a windshield 22 of the automobile 2, and does not protrude from the vehicle body 23. The groove 231 has an opening 232, which is a concave surface. The surface 101 of the spherical mirror 10 corresponds to the opening 232, and faces the windshield 22 of the automobile 2, and is also located on the transmission path of the display image 1101 output by the display module 11, so that the display image 1101 is transmitted to the windshield 22, wherein The display module 11 is located within the focal length f of the spherical mirror 10 .

However, the display module 11 of this embodiment only includes a display unit 110, and a display area of the display unit 110 is the above-mentioned image output terminal 111, that is, the display area of the display unit 110 faces the surface 101 of the concave spherical mirror 10. When the display area of the display unit 110 generates a display image 1101, that is, the image output terminal 111 outputs the display image 1101, and the display image 1101 displays relevant driving information, such as vehicle speed, fuel level, left and right turning prompts, maps and other information.

Please also refer to FIG. 3 , which is a diagram of the state of use of the optical imaging device according to the first embodiment of the present invention; The displayed image 1101' (virtual image) located in the distance, and the enlarged and equivalently located displayed image 1101' is transmitted to the windshield 22, and the windshield 22 reflects the enlarged and equivalently located displayed image 1101' to the sitting The eyes of a user 3 in a driver's seat 24 of the automobile 2 also indicate that the user 3 looks toward the direction of the windshield 22 and can see the upright magnification produced by the spherical mirror 10 and is equivalent to a distant display image 1101 '. The optical imaging device 1 provided in this embodiment has a simple structure, its manufacturing cost is greatly reduced and it is easy to assemble; in addition, the optical imaging device 1 provided in this embodiment can generate a magnified and equivalently located display image 1101 ′ at a distance, so that The user 3 can view relevant driving information without changing the viewing angle during driving, effectively avoiding accidents during the process of changing the viewing angle.

In this embodiment, a reflective film 25 or a dark film can be attached on the windshield 22, or an optical film can be coated, and the reflective film 25, dark film or optical film is located at the spherical mirror 10 to transmit magnification and is equivalently located in the distance on the path of the display image 1101', so that the magnified and equivalently located display image 1101' generated by the spherical mirror 10 of the optical imaging device 1 is projected onto the reflective film 25, dark film or optical film, allowing the user 3 The magnified and equivalently distant display image 1101 ′ generated by the optical imaging device 1 can be clearly observed through the reflective film 25, the dark film or the optical film. In addition, the user 3 can adjust the angle of the spherical mirror 10 relative to the windshield 22 according to the height of the driver's seat 24 to meet the viewing angle of the user 3, so that the user 3 can clearly see the magnified and other The display image 1101' located in the distance is effected.

Please refer to FIG. 4 , which is a block diagram of a display module of a second embodiment of the present invention; as shown in the figure, the display module 11 of this embodiment may further include a wireless transmission unit 112 and a camera unit in addition to the display unit 110 113, a speaker unit 114, a storage unit 115 or other driving auxiliary units, the wireless transmission unit 112, the camera unit 113, the speaker unit 114 and the storage unit 115 can be connected with the display unit 110, a handheld electronic device of the user (for example: smart phone, tablet computer or notebook computer) connection, if the user's handheld electronic device has an incoming call, it receives a signal generated by the handheld electronic device through the wireless transmission unit 112, and the display unit 110 according to the signal Generate a caller ID, the user can watch the caller ID from the display image, and can choose whether to connect; or the camera unit 113 can take an image or photo of the exterior of the car 2, and the image or photo can be stored in the storage unit 115 and displayed on the display unit 110, or transmit to the handheld electronic device through the wireless transmission unit 112. In addition, at least one multimedia file in the handheld electronic device can be transmitted to the display unit 110 or the speaker unit 114 through the wireless transmission unit 112, and the display unit 110 or the speaker unit 114 can play at least one multimedia file, so that the display module 11 is integrated There are many driving assistance units, so that the optical imaging device 1 not only has a single function of generating enlarged and equivalently located distant display images, but also has multiple driving assistance functions at the same time, so as to reduce the number of devices installed on the car 2 .

Please refer to FIG. 5 , which is a schematic diagram of a display module according to a third embodiment of the present invention; A display unit 110, an optical processing unit 116 and a cylindrical housing 118, the display unit 110 and the optical processing unit 116 are all arranged in the cylindrical housing 118, and the optical processing unit 116 is located at the display image displayed by the display unit 110 On the transmission path, optical processing is performed on the displayed image. In this embodiment, the optical processing unit 116 includes a plurality of mirrors 1161 and a convex lens 1162. The display unit 110 is located on the side wall 1180 of the cylindrical casing 118. The mirrors 1161 are respectively disposed in the casing 118 and located on the transmission path of the display image of the display unit 110 , so that the display image is reflected by the mirrors 1161 . The convex lens 1162 is located at an opening 1181 of the cylindrical housing 118, and is located on the transmission path of the displayed image reflected by the mirrors 1161, wherein the convex lens 1162 is the image output terminal 111, and the length of the transmission path of the displayed image is shorter than that of the convex lens The focal length is 1162, so that after the display image is optically processed by the convex lens 1162, the display image output by the image output terminal 111 is less likely to be distorted. The displayed image is not easily distorted.

Please refer to FIG. 6 , which is a schematic diagram of an optical imaging device according to a fourth embodiment of the present invention; as shown in the figure, the difference between this embodiment and the above-mentioned embodiment is that the optical imaging device 1 of this embodiment further includes a polarizer 12 and an optical film 13 . The polarizer 12 is disposed at the opening 232 of the groove 231, that is, above the spherical mirror 10, and the polarizer 12 of this embodiment is formed by coating a polarizing film 122 on the surface of a plane mirror 121, which allows the display module 11 to display The output display image 1101 passes through. Finally, the inner surface of the windshield 22 of the automobile 2 is coated with an optical film 13, the optical film 13 includes a polarizing film 131 and a reflective film 132, the polarizing film 131 is first coated on the inner surface of the windshield 22, and the reflective film 132 Then it is coated on the polarizing film 131 , and the reflective film 132 is closer to the spherical mirror 10 than the polarizing film 131 .

When the display module 110 generates a display image 1101 , the image output terminal 111 outputs the display image 1101 , and the display image 1101 displays relevant driving information, such as vehicle speed, fuel level, left and right turning prompts, maps and other information. Please also refer to FIG. 7 , which is a diagram of the use state of the optical imaging device according to the fourth embodiment of the present invention; The display image 1101 can be transmitted to the spherical mirror 10 again, and the display image 1101 is passed through the spherical mirror 10 to generate an upright and enlarged and equivalently located display image 1101' (virtual image), and at the same time, the enlarged and equivalently located display image 1101' is transmitted to The polarizer 12 passes through the polarizer 12 and is transmitted to the reflective film 132 of the windshield 22, and finally the reflective film 132 reflects and magnifies and is equivalent to the display image 1101' located in the distance to be used in the driver's seat 24 of the car 2 Therefore, when the user 3 looks toward the direction of the windshield 22 , the user 3 can see the upright magnified image 1101 ′ produced by the spherical mirror 10 and is equivalent to a distant display image 1101 ′. Wherein the reflective film 132 on the windshield 22 can be replaced by a dark film or other optical coating, so that the magnified and equivalently located display image 1101 ′ produced by the optical imaging device 1 is projected onto the reflective film 132, dark film or On the optical coating, the user 3 can clearly see the magnified and equivalently distant display image 1101 ′ generated by the optical imaging device 1 through the reflective film 132, the dark film or the optical coating.

However, the optical imaging device 1 of this embodiment can not only achieve the effect of the optical imaging device 1 of the above embodiment, but also has different effects from the optical imaging device 1 of the above embodiment in that the optical imaging device 1 of this embodiment can block the car The external sunlight of the automobile 2 passes through the windshield 22 and the spherical mirror 10 to generate light spots around the display module 11, which affects the display quality of the displayed image 1101, because the external sunlight of the automobile 2 penetrates from the windshield 22 to the When the polarizer 12 is used, sunlight first passes through the polarizing film 132 arranged on the windshield 22, and the polarizing film 132 changes the sunlight to be polarized in a single polarization direction, and then the polarization axis of the polarizer 12 is perpendicular to the polarization axis of the polarizing film 132, Therefore, the sunlight passing through the polarizing film 132 cannot pass through the polarizer 12, so the sunlight cannot pass through the spherical mirror 10 to the display module 11, that is, to achieve the above-mentioned effect, wherein the external sunlight of the car 2 and the spherical mirror 10 transmit and display images 1101 ′ to the windshield 22 with a nearly parallel sunlight delivery path. In addition to the above, the optical imaging device 1 of this embodiment is installed together during the manufacturing process of the automobile 2 . Of course, the following embodiments also illustrate that the optical imaging device 1 can be installed after the automobile 2 is manufactured.

Please refer to FIG. 8 , which is a schematic diagram of an optical imaging device according to a fifth embodiment of the present invention; 15 has an opening 151 and an accommodating space 152. The spherical mirror 10 is disposed in the accommodating space 152. The concave spherical mirror 10 faces the opening 151. The polarizer 12 is disposed at the opening 151 of the casing 15 and is located above the spherical mirror 10. Then the housing 15 loaded with the spherical mirror 10 and the polarizer 12 is arranged on the surface of the vehicle body 23 between the instrument panel seat 21 and the windshield 22 of the automobile 2, so that the spherical mirror 10 is positioned at the transmission of the display image generated by the display module 11. On the way, it faces the windshield 22 at the same time, so as to transmit the magnified and equivalently located distant display image generated by the spherical mirror 10 to the windshield 22 .

However, the optical film 13 of this embodiment is different from the optical film 13 of the above-mentioned embodiments in that the optical film 13 of this embodiment is not coated on the entire windshield 22, but is coated or attached to a partial windshield. 22, but the polarizing film 131 of the optical film 13 directly contacts the windshield 22, the reflective film 132 is arranged on the polarizing film 131, and the optical film 13 is located at the side of the spherical mirror 10. The display image generated by the spherical mirror 10 is transmitted to the windshield 22 through the polarizer 12 on the path. The optical imaging device 1 of this embodiment can achieve the same effect as the optical imaging device 1 of the above-mentioned embodiments, and the optical imaging device 1 of this embodiment can be installed according to the needs of users.

Technical feature of the present invention is:

1. The structure of the optical imaging device of the present invention is simple, which can reduce its manufacturing cost, and the spherical mirror of the optical imaging device can be optionally hidden in the body of the car without affecting the texture of the interior of the car.

2. The display image generated by the display module of the optical imaging device of the present invention can be optically processed first, so that the enlarged and equivalently distant display image generated by the display module through the spherical mirror is less likely to be distorted.

3. The display module of the optical imaging device of the present invention can integrate at least one driving assistance unit to increase the functions of the optical imaging device of the present invention.

4. The optical imaging device of the present invention changes the direction in which the external sunlight of the car enters the car through the polarizing film attached to the windshield, but cannot enter the polarizer located above the spherical mirror, so the sunlight cannot pass along the direction of the display module. The transmission path of the display image is transmitted to the display module, so that light spots will not be generated around the display module, which will affect the quality of the display image of the display module.

5. The optical imaging device of the present invention can be manufactured together when the automobile is manufactured, and can also be installed after the automobile is manufactured.

The above is only a preferred embodiment of the present invention, and is not intended to limit the implementation scope of the present invention. All equivalent changes and modifications made in accordance with the shape, structure, characteristics and spirit described in the scope of the claims of the present invention shall be included in the scope of the claims of the present invention.

Claims (7)

1. a kind of optical imaging device, it is characterised in that it is included：

One display module, it is arranged in a car body of an automobile, and the upper limb of the windshield positioned at the automobile, and is had One image output end, the display image of image output end output one；

One spherical mirror, it is arranged at the car body between an instrument panel seat of the automobile and the windshield, and is located at the display It is the surface of the spherical mirror of concave surface towards the windshield on the bang path of image；

One polariscope, it is arranged at an opening of a groove of the car body；

One light polarizing film, it is arranged at the windshield；And

One reflectance coating, it is arranged at the light polarizing film, and compared with the light polarizing film close to the spherical mirror, for the surface of the spherical mirror of concave surface Towards the reflectance coating；

Wherein the display module is located in the focal length of the spherical mirror, and the spherical mirror is more arranged at the instrument panel seat of the automobile with being somebody's turn to do In the groove of the car body between windshield, the polarizing axis of the polariscope is mutually perpendicular to the polarizing axis of the light polarizing film.

2. optical imaging device as claimed in claim 1, it is characterised in that further include：

One reflectance coating, it is arranged at the windshield, is the surface of the spherical mirror of concave surface towards the reflectance coating.

3. optical imaging device as claimed in claim 1, it is characterised in that wherein the display module further includes：

One display unit, it has a viewing area, and the viewing area is towards the spherical mirror.

4. optical imaging device as claimed in claim 1, it is characterised in that wherein the display module includes：

One housing, it has an opening；

One display unit, it is arranged in the housing, and exports the display image；And

One optical processing unit, it is arranged in the housing, and on the bang path of the display image.

5. optical imaging device as claimed in claim 4, it is characterised in that wherein the optical processing unit includes：

An at least speculum, it is arranged in the housing, and on the bang path of the display image；And

One convex lens, it is arranged at the opening of the housing, and positioned at the display image through at least speculum reflection On bang path.

6. a kind of optical imaging device, it is characterised in that it is included：

One display module, it is arranged in a car body of an automobile, and the upper limb of the windshield positioned at the automobile, and is had One image output end, the display image of image output end output one；

One spherical mirror, it is arranged at the car body between an instrument panel seat of the automobile and the windshield, and is located at the display It is the surface of the spherical mirror of concave surface towards the windshield on the bang path of image；

One housing, there is an opening and an accommodation space, the spherical mirror to be arranged in the accommodation space for it；

One polariscope, it is arranged at the opening of the housing；

One light polarizing film, it is arranged at the windshield；And

One reflectance coating, it is arranged at the light polarizing film, and compared with the light polarizing film close to the spherical mirror, for the surface of the spherical mirror of concave surface Towards the reflectance coating；

Wherein the polarizing axis of the polariscope is mutually perpendicular to the polarizing axis of the light polarizing film.

7. optical imaging device as claimed in claim 6, it is characterised in that further include：

One reflectance coating, it is arranged at the windshield, is the surface of the spherical mirror of concave surface towards the reflectance coating.