CN210605210U - Variable-focus retina scanning imaging three-dimensional display device - Google Patents
Variable-focus retina scanning imaging three-dimensional display device Download PDFInfo
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- CN210605210U CN210605210U CN201921826430.3U CN201921826430U CN210605210U CN 210605210 U CN210605210 U CN 210605210U CN 201921826430 U CN201921826430 U CN 201921826430U CN 210605210 U CN210605210 U CN 210605210U
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Abstract
The utility model discloses a variable-focus retina scanning imaging three-dimensional display device, which comprises a left eye retina scanning imaging subsystem and a right eye retina scanning imaging subsystem, wherein the left eye retina scanning imaging subsystem and the right eye retina scanning imaging subsystem have the same structure and respectively comprise a laser light source, a scanning micro-mirror device, a deformable mirror and a control device; the laser light source is an RGB three-color laser light source; the scanning micro-mirror device is a Micro Electro Mechanical System (MEMS) scanning micro-mirror, the focal length of the deformable mirror is adjusted under the control of the control device according to different user requirements, clear left and right parallax images are formed on the retinas of the left and right eyes respectively, and clear retina scanning imaging three-dimensional display is achieved.
Description
Technical Field
The utility model relates to a retina scanning formation of image and three-dimensional display technique, in particular to retina scanning formation of image three-dimensional display device can zoom.
Background
The retina scanning imaging technology is a near-to-eye display technology emerging in recent years, RGB (red, green and blue) three-color laser is used as a light source, the three-color laser is modulated to generate light beams with different pixel points, the light beams are scanned and displayed into a complete image through the rapid rotation of a micro scanning micro-mirror, the image is reflected and converged by a curved surface reflecting mirror, and a convergence point is positioned in the center of a pupil of a human eye, so that the image is directly imaged on the retina of the human eye, the focusing function of the human eye is not needed, and therefore, patients with myopia and presbyopia can watch clear projection images. However, most of the existing retinal scanning imaging technologies adopt a curved mirror with a fixed focal length, and the focal length cannot be changed according to the difference of the pupil center positions of different users, so that the technology cannot be well adapted to different users. The utility model provides a retina scanning image device can zoom can change the focus according to different users ' needs, and the deformable mirror can warp under controlling means's control, adjusts light beam focus position, makes light beam convergent point fall on people's eye pupil central point all the time and puts, can form clear left and right parallax image on the left and right eyes retina about different users to produce clear three-dimensional visual effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides a retina scanning image device can zoom, like the attached drawing, the device contains left eye retina scanning image subsystem and right eye retina scanning image subsystem, it is the same to control eye retina scanning image subsystem structure, all contains laser light source, scanning micro mirror device, distorting lens and controlling means.
The laser light source is a low-power RGB three-color laser light source, and the scanning micro-mirror device is a Micro Electro Mechanical System (MEMS) scanning micro-mirror. The scanning micro mirror modulates light beams emitted by the RGB three-color laser light source into light beams loaded with left and right parallax image information, the left and right parallax images are a pair of parallax images used for three-dimensional display, wherein the laser light beams modulated by the scanning micro mirror device in the left-eye retina scanning imaging subsystem carry the left parallax image information, the laser light beams modulated by the scanning micro mirror device in the right-eye retina scanning imaging subsystem carry the right parallax image information, and the light beams loaded with the left and right parallax image information are reflected to the deformable mirror through the scanning micro mirror. The deformable mirror changes focal length under the control of the control device according to different pupil center positions of different users, so that clear left and right parallax images are formed on the retinas of the left and right eyes, and the clear three-dimensional stereoscopic vision effect is generated after the left and right parallax images are imaged by the retinas.
The utility model discloses a scanning micro mirror device modulates RGB three-colour laser light source, and the modulation light beam is through scanning projection to the deformable mirror that can zoom, and the deformable mirror needs the focusing distance according to different users, forms images on the retina about the viewer respectively, realizes the retina that can zoom scanning formation of image three-dimensional display, has hi-lite, high color rendering, the characteristics of variable focus, three-dimensional display.
Drawings
FIG. 1 is a schematic diagram of a single eye of a variable-focus retina scanning imaging three-dimensional display device of the present invention
FIG. 2 is a schematic view of the light path of the two eyes of the device of the present invention
The reference numbers in the figures are:
1 laser light source, 2 reflectors, 3 transflective mirrors, 4 scanning micro-mirrors, 5 deformable mirrors, 6 convergence points, 7 human eyes, 8 retinal images, 9 scanning micro-mirror micro-electromechanical systems, 10 control parts, 61 left eye convergence points, 62 right eye convergence points, 71 left eyes, 72 right eyes, 81 left retinal images, 82 right retinal images, the distance between the center of the L deformable mirror and the center of a pupil, and the distance between the center of the pupil of the left eye and the center of the pupil of the right eye of the D eye.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description of an exemplary embodiment of a variable focus retinal scan imaging three-dimensional display device. It is necessary to point out here that the following examples are only used for further illustration of the present invention, and should not be understood as limiting the scope of the present invention, and those skilled in the art can make some non-essential improvements and modifications to the present invention according to the above-mentioned contents of the present invention, and still fall into the scope of the present invention.
The utility model provides a variable-focus retina scanning imaging three-dimensional display device, as shown in figure 2, the device contains left eye retina scanning imaging subsystem and right eye retina scanning imaging subsystem, it is the same to control eye retina scanning imaging subsystem component, and the range structure is the same, all contains laser light source, scanning micro mirror device, distorting lens and controlling means.
In this embodiment, the laser light source is a low-power RGB three-color laser light source, and RGB three-color laser projection display has the characteristics of wide color gamut, high brightness, and high color saturation, and can better restore the real color of the natural world. The scanning micro-mirror device is a Micro Electro Mechanical System (MEMS) scanning micro-mirror and comprises an electrostatic driving system and an image scanning display device of a two-dimensional scanning micro-mirror, the MEMS controls the scanning micro-mirror to rotate rapidly, light beams emitted by the RGB laser light source are modulated into light beams loaded with image information, and the light beams are projected to the deformable mirror.
As shown in fig. 1, the deformable mirror adjusts the focal length according to different parameters of different users L, D under the control of the control device, so that the light beams form a convergent point at the pupil of the human eye, and the convergent light forms an image on the retina of the human eye to form a clear retina image.
In this embodiment, as shown in fig. 2, the scanning micro-mirrors of the mems in the left-eye retinal scanning imaging subsystem and the right-eye retinal scanning imaging subsystem respectively scan and project a pair of left and right parallax images for three-dimensional display, that is, the laser beams modulated by the scanning micro-mirror device in the left-eye retinal scanning imaging subsystem carry left parallax image information, the laser beams modulated by the scanning micro-mirror device in the right-eye retinal scanning imaging subsystem carry right parallax image information, the left and right parallax images are respectively reflected and converged at left and right eye convergence points by the deformable mirror, the converged beams are respectively imaged by the left and right eyes to generate clear left and right retinal images, the left and right retinal images respectively correspond to a pair of left and right parallax images for three-dimensional display, and the left and right parallax images generate three-dimensional stereoscopic vision effect by retinal imaging.
The utility model adopts laser as light source and has better color rendering property; the scanning imaging technology is adopted to directly image on the retina without the focusing function of human eyeballs, so that people with myopia and presbyopia can view clear projection images; meanwhile, the zoom function of the deformable mirror is combined to adapt to different human eye parameters; the color filter has the characteristics of high color reduction degree, wider applicability and three-dimensional display.
Claims (2)
1. A variable-focus retina scanning imaging three-dimensional display device is characterized in that: the device comprises a left-eye retina scanning imaging subsystem and a right-eye retina scanning imaging subsystem, wherein the left-eye retina scanning imaging subsystem and the right-eye retina scanning imaging subsystem have the same structure and respectively comprise a laser light source, a scanning micro-mirror device, a deformable mirror and a control device; the laser light source is a low-power RGB three-color laser light source; the scanning micro-mirror device comprises a Micro Electro Mechanical System (MEMS), the scanning micro-mirror device modulates light beams emitted by the RGB three-color laser light source into light beams loaded with left and right parallax image information, the left and right parallax images are a pair of parallax images for three-dimensional display, wherein the laser light beams modulated by the scanning micro-mirror device in the left-eye retina scanning imaging subsystem carry the left parallax image information, the laser light beams modulated by the scanning micro-mirror device in the right-eye retina scanning imaging subsystem carry the right parallax image information, and the light beams loaded with the left and right parallax image information are reflected to the deformable mirror through the scanning micro-mirror; the deformable mirror adjusts the focal length and reflects light beams under the control of the control device according to the requirements of different users, so that the light beam convergence point is positioned at the center of pupils of human eyes, clear left and right parallax images are formed on the retinas of left and right eyes, and the clear three-dimensional stereoscopic vision effect is generated after the left and right parallax images are imaged by the retinas.
2. The variable focus retinal scan imaging three dimensional display apparatus of claim 1, wherein: the device may be used in a head-mounted display system.
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| CN110727112A (en) * | 2019-10-29 | 2020-01-24 | 成都工业学院 | Variable-focus retina scanning imaging three-dimensional display device |
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| CN110727112A (en) * | 2019-10-29 | 2020-01-24 | 成都工业学院 | Variable-focus retina scanning imaging three-dimensional display device |
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