CN211180414U - Image processing device and near-to-eye imaging apparatus - Google Patents
Image processing device and near-to-eye imaging apparatus Download PDFInfo
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- CN211180414U CN211180414U CN202020141814.8U CN202020141814U CN211180414U CN 211180414 U CN211180414 U CN 211180414U CN 202020141814 U CN202020141814 U CN 202020141814U CN 211180414 U CN211180414 U CN 211180414U
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Abstract
The utility model provides an image processing device and near-to-eye imaging device relates to near-to-eye imaging technology field, the utility model provides an image processing device, include: the image amplification assembly, the reflection assembly, the semi-reflection and semi-transmission assembly and the partial reflection assembly are arranged on the front side of the image amplification assembly; the image amplifying assembly is used for amplifying an image and transmitting the amplified image to the reflecting assembly; the reflection assembly is used for reflecting the image to the semi-reflection and semi-transmission assembly; the image which is emitted into the semi-reflective and semi-transparent component through the reflection component is reflected to the partial reflection component through the semi-reflective and semi-transparent component, and the image which is processed by the partial reflection component is transmitted through the semi-reflective and semi-transparent component. The utility model provides an image processing device can enlarge the image in less size space, and then increase angle of vision and eye movement scope.
Description
Technical Field
The utility model belongs to the technical field of near-to-eye imaging technology and specifically relates to an image processing device and near-to-eye imaging equipment are related to.
Background
The user can see the fused image of the virtual image and the real image through the near-eye display optical system, the size of the field angle determines the range of the visual field, the visual field is larger, and the eye movement range (EYEBOX) is larger.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an image processing device and near-to-eye imaging equipment can enlarge the image in less size space, and then increase angle of vision and eye movement scope.
In a first aspect, the present invention provides an image processing apparatus, comprising: the image amplification assembly, the reflection assembly, the semi-reflection and semi-transmission assembly and the partial reflection assembly are arranged on the front side of the image amplification assembly;
the image amplifying assembly is used for amplifying an image and transmitting the amplified image into the reflecting assembly;
the reflection component is used for reflecting the image to the semi-reflecting and semi-transmitting component;
the image which is emitted into the semi-reflective and semi-transparent component through the reflection component is reflected to the partial reflection component through the semi-reflective and semi-transparent component, and the image processed by the partial reflection component is transmitted through the semi-reflective and semi-transparent component.
With reference to the first aspect, the present disclosure provides a first possible implementation manner of the first aspect, wherein the image magnifying assembly includes a lens group.
With reference to the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein the lens group includes: first plastic lens, second plastic lens and cemented lens, first plastic lens second plastic lens with cemented lens is with the optical axis, just cemented lens sets up first plastic lens with between the second plastic lens.
With reference to the second possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein the cemented lens includes: the lens comprises a first glass lens and a second glass lens, wherein the first glass lens is connected with the second glass lens in a gluing mode.
With reference to the second possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the lens group further includes a third glass lens;
and the third glass lens is arranged between one of the first plastic lens and the second plastic lens and the cemented lens.
With reference to the first possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein an optical axis of the lens group is parallel to a first direction, and an included angle between the first direction and the reflection assembly is smaller than 90 degrees;
the optical axis of the partial reflection assembly is parallel to a second direction, and an included angle between the second direction and the semi-reflecting and semi-transmitting assembly is smaller than 90 degrees;
the first direction and the second direction have an included angle.
With reference to the fifth possible implementation manner of the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein an included angle between the first direction and the reflection assembly is 40 degrees to 50 degrees;
the included angle between the second direction and the semi-reflecting and semi-transmitting component is 35-60 degrees.
With reference to the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein the partially reflecting assembly includes: the concave mirror and the half-reflecting and half-transmitting film are arranged on one side, facing the half-reflecting and half-transmitting assembly, of the concave mirror.
In a second aspect, the present invention provides a near-to-eye imaging apparatus, comprising: a first optical imaging device and a second optical imaging device, each of the first optical imaging device and the second optical imaging device including: the image processing device comprises an image source and the image processing device provided by the first aspect, wherein an image emitted by the image source is transmitted into the image amplifying assembly.
With reference to the second aspect, the present invention provides a first possible implementation manner of the second aspect, wherein the first optical imaging device and the second optical imaging device are symmetrical with respect to a central plane.
The embodiment of the utility model provides a following beneficial effect has been brought: adopt the image amplification subassembly to enlarge the image, and the image after will enlarging jets into the reflection subassembly, reflect the image to the semi-reflection and semi-transparent subassembly through the reflection subassembly, the image that jets into the semi-reflection and semi-transparent subassembly through the reflection subassembly is reflected to partial reflection subassembly through the semi-reflection and semi-transparent subassembly, the image transmission semi-reflection and semi-transparent subassembly after partial reflection subassembly is handled, can enlarge the processing to the image through partial reflection subassembly, and make the image after enlargeing permeate half-reflection and semi-transparent subassembly and get into the human eye and form the virtual image, can obtain great angle of field in less size space, and can increase the eye movement scope.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a position relationship between an image processing apparatus, an image source and a human eye according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an image source and a first image magnifying assembly according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an image source and a second image magnifying assembly according to an embodiment of the present invention;
fig. 4 is a front view of an image processing apparatus and an image source along a second direction according to an embodiment of the present invention;
fig. 5 is a front view of an image processing apparatus and an image source along a first direction according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a near-eye imaging apparatus according to an embodiment of the present invention.
Icon: 1-an image magnification component; 11-a first plastic lens; 12-a second plastic lens; 13-a cemented lens; 131-a first glass lens; 132-a second glass lens; 14-a third glass lens; 2-a reflective component; 3-a semi-reflecting and semi-permeable component; 4-a partially reflective component; 41-concave mirror; 42-a semi-reflecting and semi-permeable membrane; 5-an image source; 6-human eyes; 7-the central plane; x-a first direction; y-a second direction; z-a third direction.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1, an embodiment of the present invention provides an image processing apparatus, including: the device comprises an image amplification component 1, a reflection component 2, a semi-reflection and semi-transmission component 3 and a partial reflection component 4; the image amplifying assembly 1 is used for amplifying an image and transmitting the amplified image to the reflecting assembly 2; the reflection component 2 is used for reflecting the image to the semi-reflecting and semi-transmitting component 3; the image which is transmitted into the transflective assembly 3 through the reflecting assembly 2 is reflected to the partial reflecting assembly 4 through the transflective assembly 3, and the image processed by the partial reflecting assembly 4 is transmitted through the transflective assembly 3.
Specifically, the image amplifying assembly 1 may amplify an image generated by the image source 5 for the first time, the image reflected by the reflection assembly 2 is incident to the transflective assembly 3, the image reflected by the transflective assembly 3 enters the partial reflection assembly 4, the partial reflection assembly 4 may amplify the image for the second time, the amplified image is reflected by the partial reflection assembly 4 to the transflective assembly 3, the image transmits through the transflective assembly 3 to enter the human eye 6, so as to form a virtual image, and further, the image is amplified twice in a small size space by a light path folding manner, so as to obtain a large field angle and a large eye movement range, compared with a method of imaging by using an optical machine and a waveguide, the light efficiency is higher, the imaging quality is better.
In the embodiment of the present invention, the image magnifying assembly 1 includes a lens group.
Specifically, the lens group can adopt a single-chip lens or a multi-chip lens combination. The lenses are coaxial, and images sequentially transmit the lenses to realize image amplification. The material of lens can be for plastic material also can be for glass material, and the glass lens also can be the veneer lens, and the mode that this embodiment adopted plastic lens and glass lens to mix, and the whole focus of lens group is 7mm ~ 15 mm.
As shown in fig. 1 and 2, the lens group includes: the lens comprises a first plastic lens 11, a second plastic lens 12 and a cemented lens 13, wherein the first plastic lens 11, the second plastic lens 12 and the cemented lens 13 are coaxial, and the cemented lens 13 is arranged between the first plastic lens 11 and the second plastic lens 12. The first plastic lens 11 and the second plastic lens 12 may both be aspheric lenses.
Specifically, an image generated by the image source 5 sequentially passes through the first plastic lens 11, the cemented lens 13 and the second plastic lens 12, and both the first plastic lens 11 and the second plastic lens 12 can amplify the image. The cemented lens 13 can not only magnify the image but also eliminate or reduce chromatic aberration.
Further, the cemented lens 13 includes: a first glass lens 131 and a second glass lens 132, the first glass lens 131 and the second glass lens 132 being connected by gluing. The first glass lens 131 and the second glass lens 132 are spherical lenses.
As shown in fig. 1 and 3, the lens group further includes a third glass lens 14; a third glass lens 14 is disposed between one of the first plastic lens 11 and the second plastic lens 12 and the cemented lens 13. Wherein, the third glass lens 14 adopts a spherical lens. In the case where the third glass lens 14 is additionally provided, the second plastic lens 12 is an aspherical lens, the first glass lens 131 and the second glass lens 132 are both spherical lenses, and the first plastic lens 11 is an aspherical lens.
It should be noted that, when the image source 5 adopts 0.5 ″ O L ED, the image processing apparatus is used to perform near-eye imaging display, the resolution is 1600 × 1200, the viewing angle can reach 60 °, the focal length is 11mm, the viewing distance is 18mm, the eye movement range is 12mm × 18mm, and the distortion is less than 2%.
As shown in fig. 1, 4 and 5, the reflection assembly 2 may employ a mirror, which functions to reflect the image enlarged by the image enlarging assembly 1. A metal or dielectric highly reflective film may be plated on the reflector to make the reflectivity of the reflective assembly 2 greater than 90%. The included angle between the reflecting component 2 and the optical axis of the image amplifying component 1 is 40-50 degrees, for example: the angle between the reflecting assembly 2 and the optical axis of the image amplifying assembly 1 can be set to be 42 degrees, 45 degrees or 48 degrees.
Further, the optical axis of the lens group is parallel to the first direction x, and the included angle between the first direction x and the reflection assembly 2 is smaller than 90 degrees; the optical axis of the partial reflection assembly 4 is parallel to the second direction y, and the included angle between the second direction y and the transflective assembly 3 is less than 90 degrees; the first direction x and the second direction y have an angle. The first direction x, the second direction y and the third direction z are perpendicular to each other, an image amplified by the image amplifying assembly 1 is shot into the reflecting assembly 2 along the first direction x, an image reflected by the reflecting assembly 2 is shot into the semi-reflective and semi-transparent assembly 3, an image reflected by the semi-reflective and semi-transparent assembly 3 is shot into the partial reflecting assembly 4, the image is amplified by the partial reflecting assembly 4, and the image is shot into human eyes 6 along the second direction y.
Specifically, the semi-reflective and semi-transparent component 3 can adopt a semi-transparent plate reflecting lens, the semi-transparent plate reflecting lens is plated with a semi-reflective and semi-transparent material, the ratio of the reflectivity to the transmissivity can be selected to be 2:8, 3:7, 4:6 or 5:5, the overall light efficiency can be improved by increasing the reflectivity ratio, the brightness can be increased, and meanwhile the external illumination intensity can be reduced.
Furthermore, the included angle between the first direction x and the reflection assembly 2 is 40-50 degrees; the included angle between the second direction y and the semi-reflecting and semi-permeable component 3 is 35-60 degrees. The included angle between the first direction x and the reflective assembly 2 can be configured to be 42 degrees, 45 degrees, 47.5 degrees or 48 degrees, and the included angle between the second direction y and the transflective assembly 3 can be configured to be 40 degrees, 45 degrees, 50 degrees or 55 degrees.
Further, the partially reflecting member 4 includes: concave mirror 41 and semi-reflecting and semi-transmitting film 42, and semi-reflecting and semi-transmitting film 42 is arranged on the side of concave mirror 41 facing semi-reflecting and semi-transmitting component 3.
In particular, the partially reflective element 4 has a reflectivity to transmissivity ratio of 2:8, 3:7, 4:6 or 5:5, and the partially reflective element 4 has an optical power, preferably a focal length of typically 15mm to 30 mm. If the surface of the partial reflection component 4 is spherical, the material can be selected from glass, and if the surface is aspheric, the material can be selected from plastic. The concave mirror 41 is provided with an inner cavity, the semi-reflecting and semi-transmitting film 42 is coated on the inner surface of the inner cavity close to the semi-reflecting and semi-transmitting assembly 3, one part of the image shot into the partial reflection assembly 4 is reflected by the semi-reflecting and semi-transmitting film 42, and the other part of the image is reflected by the inner surface of the concave mirror 41 far away from the semi-reflecting and semi-transmitting assembly 3.
Example two
As shown in fig. 6, an embodiment of the present invention provides a near-eye imaging apparatus, including: first optical imaging device and second optical imaging device, first optical imaging device and second optical imaging device each include: the image source 5 and the image processing device provided in the first embodiment, the image emitted from the image source 5 is incident into the image magnifying assembly 1.
Specifically, the near-eye imaging device may be configured as a head-mounted display system, and the near-eye imaging device has the same technical effect as the image processing device, and therefore, it is not described herein again, it is to be noted that the image source 5 includes an organic light emitting diode (O L ED), a liquid crystal on silicon (L COS), a micro light emitting diode (micro L ED), or a Digital Micromirror (DMD).
In the embodiment of the present invention, the first optical imaging device and the second optical imaging device are symmetrical with respect to the central plane 7. The central plane 7 is perpendicular to the optical axis of the image magnification assembly 1, and the first optical imaging device and the second optical imaging device project images to two eyes in a one-to-one correspondence manner, so that the two eyes can acquire virtual images of the images.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An image processing apparatus characterized by comprising: the device comprises an image amplification component (1), a reflection component (2), a semi-reflection and semi-transmission component (3) and a partial reflection component (4);
the image amplifying assembly (1) is used for amplifying an image and emitting the amplified image into the reflecting assembly (2);
the reflection component (2) is used for reflecting the image to the semi-reflecting and semi-transmitting component (3);
the image which is emitted into the semi-reflective and semi-transparent component (3) through the reflection component (2) is reflected to the partial reflection component (4) through the semi-reflective and semi-transparent component (3), and the image processed by the partial reflection component (4) is transmitted through the semi-reflective and semi-transparent component (3).
2. An image processing apparatus according to claim 1, characterized in that the image magnification arrangement (1) comprises a lens group.
3. The image processing apparatus according to claim 2, wherein said lens group comprises: first plastic lens (11), second plastic lens (12) and cemented lens (13), first plastic lens (11) second plastic lens (12) with cemented lens (13) are with the optical axis, just cemented lens (13) set up first plastic lens (11) with between second plastic lens (12).
4. An image processing apparatus according to claim 3, wherein the cemented lens (13) comprises: the lens comprises a first glass lens (131) and a second glass lens (132), wherein the first glass lens (131) is connected with the second glass lens (132) in a gluing mode.
5. An image processing apparatus according to claim 3, characterized in that said lens group further comprises a third glass lens (14);
and the third glass lens (14) is arranged between one of the first plastic lens (11) and the second plastic lens (12) and the cemented lens (13).
6. An image processing apparatus according to claim 2, wherein the optical axis of said lens group is parallel to a first direction (x), and the angle between said first direction (x) and said reflective component (2) is smaller than 90 degrees;
the optical axis of the partial reflection assembly (4) is parallel to a second direction (y), and an included angle between the second direction (y) and the semi-reflecting and semi-transmitting assembly (3) is smaller than 90 degrees;
the first direction (x) has an angle with the second direction (y).
7. The image processing apparatus according to claim 6, wherein the first direction (x) is at an angle of 40-50 degrees to the reflective component (2);
the included angle between the second direction (y) and the semi-reflecting and semi-permeable component (3) is 35-60 degrees.
8. Image processing device according to claim 1, characterized in that the partially reflecting component (4) comprises: the light-emitting module comprises a concave mirror (41) and a semi-reflecting and semi-permeable film (42), wherein the semi-reflecting and semi-permeable film (42) is arranged on one side, facing the semi-reflecting and semi-permeable assembly (3), of the concave mirror (41).
9. A near-eye imaging device, comprising: a first optical imaging device and a second optical imaging device, each of the first optical imaging device and the second optical imaging device including: image source (5) and image processing device according to any of claims 1 to 8, the image emitted by the image source (5) being incident on the image magnification assembly (1).
10. A near-eye imaging apparatus according to claim 9, wherein the first optical imaging device and the second optical imaging device are symmetrical with respect to a central plane (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020141814.8U CN211180414U (en) | 2020-01-21 | 2020-01-21 | Image processing device and near-to-eye imaging apparatus |
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| CN202020141814.8U CN211180414U (en) | 2020-01-21 | 2020-01-21 | Image processing device and near-to-eye imaging apparatus |
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| CN211180414U true CN211180414U (en) | 2020-08-04 |
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| CN202020141814.8U Active CN211180414U (en) | 2020-01-21 | 2020-01-21 | Image processing device and near-to-eye imaging apparatus |
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