CN111007668A - Optical image display device - Google Patents
Optical image display device Download PDFInfo
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- CN111007668A CN111007668A CN201910950039.2A CN201910950039A CN111007668A CN 111007668 A CN111007668 A CN 111007668A CN 201910950039 A CN201910950039 A CN 201910950039A CN 111007668 A CN111007668 A CN 111007668A
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- optical
- optical imaging
- imaging structure
- image display
- display device
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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
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The invention relates to an optical image display device, which comprises a first optical imaging structure, a second optical imaging structure and a transverse adjusting structure, wherein the transverse adjusting structure is arranged on the first optical imaging structure and the second optical imaging structure. The first optical imaging structure and the second optical imaging structure can generate transverse displacement by the transverse adjusting structure so as to adjust the relative position between the first optical imaging structure and the second optical imaging structure to accord with the distance between the eyes of a user, and the images of the first optical imaging structure and the second optical imaging structure can be positioned at a better sight line intersection point to generate a clear image.
Description
Technical Field
The present invention relates to an image display device, and more particularly, to an optical image display device with an adjustment function.
Background
Head-Up displays (HUDs) were first used on military aircraft to avoid the need for the pilot to look down at the instrument panel information, and to avoid the loss of the pilot's concentration or Awareness of the status (health Awareness) due to the act of looking down, and are also introduced by present day civilian aircraft and automotive owners because of their convenience and safety in that the pilot does not need to look down at the instrument panel.
The modern head-up display is placed below a windshield of an automobile and comprises a single display and a plurality of optical components, wherein the display provides images, the images are projected by the optical components, and the images projected by the optical components of the head-up display are projected in front of the windshield through reflection of the windshield.
However, such a head-up display is not suitable for head-wearing, the display is disposed in front of the forehead of the user, the optical lens generating the virtual image is disposed in front of the eyes, the display and the optical lens are in a very short optical path space, and the image can be located in front of the user, for example, if a display is disposed above the forehead of the user near the center of the nose, and an optical lens is disposed in front of the left and right eyes. The display provides images to the optical lens, and the left eye and the right eye can respectively see the images, because of the angle relationship, the left eye and the right eye can see the images provided by the display, and the extended sight lines of the images can cross the near front of the two eyes, so the application can seriously affect the display effect and can mistakenly recognize that the images are only positioned at a position short distance in front of the human face, such as a position of 10 cm-30 cm.
Therefore, in order to solve the above-mentioned problems, the present invention provides an optical image display device, which projects images through two independent optical imaging structures, and can adjust the distance between the two independent optical imaging structures to conform to the distance between the eyes of a user, so that the images of the two independent optical imaging structures can be located at a better cross point of the eyes' sight lines to generate clear images.
In view of the above, the present invention provides an optical image display device, which utilizes two optical imaging structures in combination with a lateral adjustment structure to adjust the relative position between the two optical imaging structures, so as to adjust the imaging position at a better cross point of the two eye sight lines, thereby generating a clear image.
Disclosure of Invention
An objective of the present invention is to provide an optical image display device, which includes two independent optical imaging structures respectively corresponding to two eyes of a user for projecting images respectively for the user to view.
The invention provides an optical image display device, comprising: a first optical imaging structure comprising a first optical element and a first display element, the first display element projecting a first display image to the first optical element; a second optical imaging structure comprising a second optical element and a second display element, the second display element projecting a second display image onto the second optical element; and a lateral adjustment structure disposed on the first optical imaging structure and the second optical imaging structure.
Drawings
FIG. 1A: which is a schematic perspective view of an embodiment of the present invention;
FIG. 1B: which is a partially exploded view of one embodiment of the present invention;
FIG. 2: which is an exploded view of one embodiment of the present invention;
FIG. 3A: which is a schematic view of a usage status of a lateral adjustment structure according to an embodiment of the present invention;
FIG. 3B: which is a schematic view of a usage status of a longitudinal adjustment structure according to an embodiment of the present invention;
FIG. 4: which is a schematic diagram of a near focus and a far focus of an embodiment of the present invention; and
FIG. 5: which is a schematic imaging diagram according to an embodiment of the present invention.
[ brief description of the drawings ]
1 optical image display device
112 first assembly rod
114 second assembly rod
12 first optical imaging structure
120 first bearing seat
121 first fixed part
122 first optical component
123 first fixing part
124 first display assembly
125 first transverse location point
126 first fixing seat
127 first longitudinal anchor point
13 first elastic member
14 second optical imaging arrangement
140 second bearing seat
141 second fixing part
142 second optical component
143 second fixing part
144 second display assembly
145 second transverse location point
146 second fixing seat
147 second longitudinal location point
15 second elastic member
16 lateral adjustment structure
162 base
1621 screw hole
1622 third fixing part
1624 third fixing part
1626 first perforation
1628 second perforation
164 screw
166 adjusting knob
168 first fixing part
169 second fixing member
18 first elastomer
19 second elastomer
20 cover body
22 perforation
26 perforation
24 longitudinal adjusting structure
242 grip portion
244 screw
246 shock-absorbing elastic member
92 near object
94 distant object
LE left eye
RE Right eye
C1 first horizon
C2 second horizon
C3 third horizon
f1 near focus
f2 far focal length
Theta 2 second angle of view
M1 first display image
M2 second display image
LA first optical path
LB second optical Path
First line of sight of SA
SB second line of sight
P1 intersection of lines of sight
Detailed Description
In order to provide a further understanding and appreciation for the structural features and advantages achieved by the present invention, the following detailed description of the presently preferred embodiments is provided:
in the conventional optical image display device with a single display and a single optical lens, because of the angle relationship, the positions of the two eyes for seeing the images provided by the conventional optical image display device intersect at the near front of the two eyes, which seriously affects the display effect and enables the user to mistakenly recognize that the images are only located at the near front position of the human face.
The optical image display device of the invention can enable the image to be positioned at the better sight line intersection point of two eyes so as to generate clear images. The optical image display device of the invention utilizes two optical imaging structures to combine a transverse adjusting structure, so that the relative position between the two optical imaging structures can be adjusted to accord with the distance between the eyes of a user, the image is positioned at the optimal sight line cross point of the eyes, the image is imaged at a proper imaging distance, and the user can watch a clear image.
Hereinafter, the present invention will be described in detail by illustrating various embodiments thereof with the aid of the drawings. The inventive concept may, however, be embodied in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein.
First, referring to fig. 1A and fig. 1B, which are a schematic perspective view and a partially exploded view of an optical image display device 1 according to an embodiment of the present invention, as shown in the drawings, the optical image display device 1 includes a first optical imaging structure 12 and a second optical imaging structure 14.
Next, referring to fig. 2, which is an exploded schematic view of an embodiment of the present invention, as shown in the figure, the optical image display device 1 of the present invention includes the first optical imaging structure 12, the second optical imaging structure 14 and a lateral adjustment structure 16, where the first optical imaging structure 12 and the second optical imaging structure 14 correspond to two eyes of a user for imaging. The first optical imaging structure 12 includes a first optical element 122 and a first display element 124, the first display element 124 projects a first display image M1 to the first optical element 122, the second optical imaging structure 14 includes a second optical element 142 and a second display element 144, the second display element 144 projects a second display image M2 to the second optical element 142, and the lateral adjustment structure 16 is disposed on the first optical imaging structure 12 and the second optical imaging structure 14. The first display element 124 and the second display element 144 may be Liquid Crystal Displays (LCDs) or other types of displays. The first optical element 122 and the second optical element 142 may be spherical mirrors, but are not limited to spherical mirrors.
Furthermore, the first optical imaging structure 12 includes a first carrying seat 120 and a first fixing seat 126, the first optical assembly 122, the first display assembly 124 and the first fixing seat 126 are disposed on the first carrying seat 120, and the first display assembly 124 is opposite to the first optical assembly 122. The second optical imaging structure 14 includes a second carrying seat 140 and a second fixing seat 146, the second optical assembly 142, the second display assembly 144 and the second fixing seat 146 are disposed on the second carrying seat 140, and the second display assembly 144 is opposite to the second optical assembly 142. The first optical imaging structure 12 further includes a first transverse positioning point 125 and a first longitudinal positioning point 127, the second optical imaging structure 14 further includes a second transverse positioning point 145 and a second longitudinal positioning point 147, the first transverse positioning point 125 and the second transverse positioning point 145 are symmetrically disposed, and the first longitudinal positioning point 127 is opposite to the second longitudinal positioning point 147.
In addition, the lateral adjustment structure 16 includes a base 162, a screw 164, a first fixing element 168, a second fixing element 169, and an adjustment button 166, the base 162 is assembled to the first optical imaging structure 12 and the second optical imaging structure 14, the screw 164 penetrates through the adjustment button 166 and is screwed with the first fixing element 168 and the second fixing element 169, the first fixing element 168 is disposed on the first fixing seat 126 of the first optical imaging structure 12, and the second fixing element 169 is disposed on the second fixing seat 146 of the second optical imaging structure 14, so that it indicates that the screw 164 is disposed on the first optical imaging structure 12 and the second optical imaging structure 14. The adjusting button 166 is located at one side of the first fixing seat 126. In addition, the base 162 has a first through hole 1626 and a second through hole 1628, the first fixing member 168 and the first fixing seat 126 are disposed at the first through hole 1626 and are movable in the first through hole 1626, and the second fixing member 169 and the second fixing seat 146 are disposed at the second through hole 1628 and are movable in the second through hole 1628.
The optical image display device 1 of the present invention further includes at least one assembling rod, in an embodiment of the present invention, the at least one assembling rod includes a first assembling rod 112 and a second assembling rod 114, but the present invention does not need to limit the present invention to two assembling rods, the first assembling rod 112 and the second assembling rod 114 are respectively inserted into two sides of the first optical imaging structure 12, the second optical imaging structure 14 and the lateral adjustment structure 16, wherein the first assembling rod 112 is inserted into a first fixing portion 121 of the first bearing seat 120 of the first optical imaging structure 12, a second fixing portion 141 of the second bearing seat 140 of the second optical imaging structure 14 and a third fixing portion 1622 of the base 162 of the lateral adjustment structure 16, and the second assembling rod 114 is inserted into a first fixing portion 123 of the first bearing seat 120 of the first optical imaging structure 12 and a second lateral fixing portion 143 of the second bearing seat 140 of the second optical imaging structure 14 and the lateral adjustment structure 14 To a third fastening portion 1624 of the base 162 of the adjustment structure 16.
The optical image display device 1 further includes a first elastic member 13 and a second elastic member 15, wherein the first elastic member 13 is sleeved on the first assembling rod 112 and abuts between the first fixing portion 121 and the third fixing portion 1622, and the second elastic member 15 is sleeved on the first assembling rod 112 and abuts between the second fixing portion 141 and the third fixing portion 1622. In addition, the optical image display device 1 may further include a first elastic body 18 and a second elastic body 19, the first elastic body 18 is sleeved on the second assembling rod 114, the first elastic body 18 abuts between the first fixing portion 123 and the third fixing portion 1624, the second elastic body 19 is sleeved on the second assembling rod 114, and the second elastic body 19 abuts between the second fixing portion 143 and the third fixing portion 1624.
Since there is a tolerance in the production and assembly of the mechanical components, when the lateral adjustment structure 16 is adjusted, because the tolerance causes an inaccurate adjustment, the tolerance is reduced by the first elastic member 13, the second elastic member 15, the first elastic body 18 and the second elastic body 19.
As the above-mentioned mechanisms are presented, for example, when the user wears the optical image display device of the present invention on the head, since the distance between the eyes of each person is different, when using the optical image display device, the distance between the first optical imaging structure 12 and the second optical imaging structure 14 can be adjusted to conform to the distance between the eyes of the user, so that the user can wear the device comfortably, and the images of the first optical imaging structure 12 and the second optical imaging structure 14 can be located at the preferable cross-point of the vision of the eyes to generate clear images. After the user wears the optical image display device, he/she can face the mirror and operate the adjustment knob 166 to rotate the screw 164, and thus, the above-mentioned structure can understand that the screw 164 is disposed on the first optical imaging structure 12 and the second optical imaging structure 14, so that, as shown in fig. 3A, when the screw 164 is actuated, the first optical imaging structure 12 and the second optical imaging structure 14 simultaneously move laterally inward or outward, the first lateral positioning point 125, the second lateral positioning point 145 and a left eye LE and a right eye RE of the user on the optical image display device 1 can be observed through the mirror, the adjustment knob 166 is adjusted while the first optical imaging structure 12 and the second optical imaging structure 14 move laterally, so that the user can adjust the first lateral positioning point 125 of the first optical imaging structure 12 and the left eye LE of the user to be located at a first central line C1, the second transverse positioning point 145 and the right eye RE of the user are located on a second center line C2, so that the relative positions of the first optical imaging structure 12 and the second optical imaging structure 22 can be adjusted to conform to the distance between the two eyes of the user by the optical image display device 1 of the present invention, so as to obtain better image formation.
The optical image display device 1 of the present invention can adjust the first optical imaging structure 12 and the second optical imaging structure 14 simultaneously, or can adjust the first optical imaging structure 12 and the second optical imaging structure 14 separately and individually, the present embodiment is described by way of simultaneous adjustment, but not limited thereto, and the lateral adjustment structure 16 of the optical image display device 1 of the present invention can be a screw structure, a slide structure, or a pull structure, etc. to allow the first optical imaging structure 12 and the second optical imaging structure 14 to perform lateral displacement, which is described by way of screw in the present embodiment, but not limited thereto.
Therefore, the present invention has an advantage of improving the disadvantage of the conventional head-mounted optical image display device that the images are too close, and the first optical imaging structure 12 and the second optical imaging structure 14 of the optical image display device 1 of the present invention respectively correspond to the two eyes of the user and respectively image, but the human brain combines the images seen by the two eyes to form a stereoscopic image, so that the image can be located at a better imaging position without the user feeling that the image is located only in front of the eyes. In addition, by the lateral adjustment structure 16, the relative positions of the first optical imaging structure 12 and the second optical imaging structure 14 can be adjusted to conform to the distance between the eyes of the user, so that the optical image display device 1 of the present invention can provide clear images.
In addition, the optical image display device 1 further includes a longitudinal adjustment structure 24 disposed on the lateral adjustment structure 16, which includes a holding portion 242 and a screw 244, the holding portion 242 is connected to the screw 244, and the screw 244 is screwed with a screw hole 1621 of the base 162 of the lateral adjustment structure 16. Further comprising a cover 20 and a shock-absorbing elastic member 246, the shock-absorbing elastic member 246 is disposed through the screw 244 and abuts against the cover 20 and the holding portion 242, the cover 20 has a through hole 22 and a through hole 26, the screw 244 is disposed through the through hole 26 and is screwed with the base 162 of the lateral adjustment structure 16, so as to fix the lateral adjustment structure 16 to the cover 20. The cover 20 is used to fix the lateral adjustment structure 16, embodiments such as a housing and a cover can be used to fix the lateral adjustment structure 16, and an embodiment of the present invention is described using the cover 20, but not limited thereto. The adjusting knob 166 of the lateral adjusting structure 16 is inserted through the through hole 22.
To better understand the longitudinal adjustment structure 24 of the present invention, the first optical imaging structure 12, the second optical imaging structure 14 and the lateral adjustment structure 16 are the same as those of the above embodiments, and therefore, the detailed description thereof is omitted. When the user wears the optical image display device 1 of the present invention on his head, because the heights of both eyes of each person are different, when using the optical image display device 1, as shown in fig. 3B, the user can rotate the holding portion 242 to rotate the screw 244, and the screw 244 drives the lateral adjustment structure 16 to longitudinally displace, so that the first optical imaging structure 12 and the second optical imaging structure 14 also longitudinally move together, so that the first longitudinal positioning point 127 and the second longitudinal positioning point 147 and the left eye LE and the right eye RE of the user are located on a third center line C3, and the relative positions of the first optical imaging structure 12 and the second optical imaging structure 14 can be adjusted by the optical image display device 1 of the present invention to obtain a better image.
The optical image display device 1 of the present invention can adjust the relative distance between the first optical imaging structure 12 and the second optical imaging structure 14 to meet the distance between the eyes of the user to achieve the purpose of better imaging, and if the first optical imaging structure 12 and the second optical imaging structure 14 cannot fit the eyes of the user, the user cannot view clear images. Referring to fig. 4, which is a schematic diagram of a near focus and a far focus according to the present invention, as shown in the figure, a viewing angle generated by the intersection of the visual lines of a left eye LE and a right eye RE of a user changes according to the placement position of an object to be viewed, when a near object 92 and a far object 94 are placed differently, the left eye LE, the right eye RE and the near object 92 generate a first viewing angle θ 1 which is larger than a second viewing angle θ 2 generated by the left eye LE, the right eye RE and the far object 94, and in addition, not negligibly, the visual focal length of the eyes is adjusted according to the far/near objects 92, 94 except for the viewing angle change generated by the eyes viewing the far/near object, that is, when the left eye LE and the right eye RE view the near object 92, the left eye LE and the right eye RE generate a near focal length f1, and when the left eye LE and the right eye RE view the far object 94, the left eye LE and the right eye RE generate a far focal length f2, as can be seen from the above, the variation of the viewing angle and the variation of the focal length are generated simultaneously, the viewing angle is related to the distance between the left eye LE and the right eye RE, and the viewing angle varies with the distance between the left eye LE and the right eye RE, so the relative distance between the first optical imaging structure 12 and the second optical imaging structure 14 must meet the distance between the two eyes of the user to enable the two eyes of the user to view clear images.
Referring to fig. 5, which is a focusing schematic diagram of an embodiment of the present invention, as shown in the figure, the first display image M1 displayed by the first display element 124 and the second display image M2 displayed by the second display element 144 are the same image content, and by using a corresponding angle layout design, after the first display image M1 displayed by the first display element 124 is projected to the first optical element 122 through a first optical path LA to become a virtual image display, a first sight line SA seen by the user's eyes extends backward, and the display content of the second display element 144 is projected to the second optical element 142 through a second optical path LB to become a virtual image display, a second sight line SB seen by the user's eyes extends backward and intersects with the first sight line SA to form a sight line intersection point P1, the sight line intersection point P1 is close to the central position between the two eyes, and the sight line intersection point P1 can adjust the first optical imaging structure 12 and the second optical imaging structure to form a virtual image through the lateral adjustment structure 16 The distance between the image structures 14 is adjusted to display a clear image. The optical image display device 1 of the present invention does not adjust the relative position and angle between the first optical element 122 and the first display element 124 of the first optical imaging structure 12, and does not adjust the relative position and angle between the second optical element 142 and the second display element 144 of the second optical imaging structure 14, and generates a clear image by adjusting the relative position between the first optical imaging structure 12 and the second optical imaging structure 14, so as to facilitate the user to operate and view the clear image.
In the above-mentioned embodiments, the present invention provides an optical image display device, which includes two optical imaging structures combined with a lateral adjustment structure, and adjusts the relative position between the two optical imaging structures by the lateral adjustment structure to conform to the distance between two eyes of a user, so that an image is located at a better sight line intersection point of two eyes, the image is formed at a better imaging distance, and the user can watch a clear image.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (18)
1. An optical image display device, comprising:
a first optical imaging structure comprising a first optical element and a first display element, the first display element projecting a first display image to the first optical element;
a second optical imaging structure comprising a second optical element and a second display element, the second display element projecting a second display image onto the second optical element; and
and the transverse adjusting structure is arranged on the first optical imaging structure and the second optical imaging structure.
2. The optical image display device according to claim 1, wherein the first optical imaging structure comprises:
the first optical assembly and the first display assembly are arranged on the first bearing seat, and the first display assembly is opposite to the first optical assembly.
3. The optical image display device according to claim 1, wherein the second optical imaging structure comprises:
the second optical assembly and the second display assembly are arranged on the second bearing seat, and the second display assembly is opposite to the second optical assembly.
4. The optical image display device according to claim 1, wherein the lateral adjustment structure comprises:
a base, which is assembled on the first optical imaging structure and the second optical imaging structure;
a screw rod arranged on the first optical imaging structure; and
an adjusting button, the screw rod is arranged through the adjusting button.
5. The optical image display device according to claim 4, wherein the lateral adjustment structure further comprises:
the first fixing piece is arranged on a first fixing seat of the first optical imaging structure, and the screw is in threaded connection with the first fixing piece.
6. The optical image display apparatus according to claim 4, wherein the screw is further disposed on the second optical imaging structure.
7. The optical image display device according to claim 6, wherein the lateral adjustment structure further comprises:
and the second fixing piece is arranged on a second fixing seat of the second optical imaging structure, and the screw is in threaded connection with the second fixing piece.
8. The optical image display device according to claim 1, further comprising:
and the assembling rod is inserted in the first optical imaging structure, the second optical imaging structure and the transverse adjusting structure.
9. The device of claim 8, wherein the at least one mounting bar comprises a first mounting bar and a second mounting bar, the first mounting bar and the second mounting bar are respectively inserted on two sides of the first optical imaging structure, the second optical imaging structure and the lateral adjustment structure.
10. The optical image display device according to claim 9, wherein the first assembling rod is inserted into a first fixing portion of the first optical imaging structure, a second fixing portion of the second optical imaging structure and a third fixing portion of the lateral adjustment structure.
11. The optical image display device according to claim 10, further comprising:
the first elastic piece is sleeved on the first assembling rod and is abutted between the first fixing part and the third fixing part; and
the second elastic piece is sleeved on the first assembling rod and is abutted between the second fixing part and the third fixing part.
12. The optical image display apparatus of claim 9, wherein the second assembling rod is inserted into a first fixing portion of the first optical imaging structure, a second fixing portion of the second optical imaging structure and a third fixing portion of the lateral adjustment structure.
13. The optical image display device according to claim 12, further comprising:
the first elastic body is sleeved on the second assembling rod and is abutted between the first fixed part and the third fixed part; and
the second elastic body is sleeved on the second assembling rod and is abutted between the second fixing part and the third fixing part.
14. The optical image display device according to claim 1, further comprising:
a longitudinal adjusting structure disposed on the lateral adjusting structure.
15. The optical image display device according to claim 14, wherein the vertical adjustment structure comprises:
a screw bolt connected with the transverse adjusting structure in a screw way.
16. The optical image display device according to claim 15, further comprising:
and the screw rod is inserted into the cover body and is in threaded connection with the transverse adjusting structure.
17. The optical image display device according to claim 16, further comprising:
and the damping elastic piece penetrates through the screw rod and is abutted against the cover body.
18. The optical image display device of claim 1, wherein the first optical imaging structure further comprises a first transverse positioning point and a first longitudinal positioning point, the second optical imaging structure further comprises a second transverse positioning point and a second longitudinal positioning point, the first transverse positioning point and the second transverse positioning point are symmetrically disposed, and the first longitudinal positioning point is opposite to the second longitudinal positioning point.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862741065P | 2018-10-04 | 2018-10-04 | |
| US62/741,065 | 2018-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111007668A true CN111007668A (en) | 2020-04-14 |
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ID=70110812
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910950039.2A Pending CN111007668A (en) | 2018-10-04 | 2019-10-08 | Optical image display device |
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| CN (1) | CN111007668A (en) |
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| CN207895154U (en) * | 2018-02-09 | 2018-09-21 | 中山市美景光学信息有限公司 | A kind of display module interpupillary distance adjustment structure applied to AR glasses |
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| CN206115034U (en) * | 2016-08-31 | 2017-04-19 | 深圳超多维科技有限公司 | Be applied to virtual reality device's focus adjustment mechanism and virtual reality device |
| CN206741089U (en) * | 2016-10-13 | 2017-12-12 | 成都虚拟世界科技有限公司 | A kind of interpupillary distance adjusting means, diopter adjusting means and wear display device |
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Application publication date: 20200414 |