Disclosure of Invention
The invention aims to provide a fundus camera which can shoot images of the fundus of human eyes and can enable a user to see the images of the fundus of the user.
It is another object of the present invention to provide a virtual reality imaging apparatus capable of presenting an image within the human eye.
Embodiments of the present invention are implemented as follows:
the utility model provides a fundus camera, it includes VR system and imaging system, the VR system includes first organism and sets up in the glasses that connect in first organism and be used for reflecting the dichroic mirror of infrared light, imaging system includes second organism and sets up imaging lens and the camera body in the second organism, the dichroic mirror slope sets up and is located the glasses that connect one side that the user was kept away from and is used for outwards reflecting the infrared light, the second organism is connected with first organism, imaging lens is used for gathering the infrared light that the dichroic mirror reflects to the camera body.
Alternatively, in a preferred embodiment of the present invention, the above-described fundus camera further includes an infrared light illumination lamp provided between the first body and the second body for infrared light supplement to the dichroic mirror.
Alternatively, in a preferred embodiment of the present invention, the dichroic mirror is in the form of a plate; the mirror surface of the dichroic mirror is inclined toward obliquely downward, and the imaging lens and the camera body are located at the bottom of the first body.
Alternatively, in a preferred embodiment of the present invention, the dichroic mirror is in the form of a plate; the mirror surface of the dichroic mirror is inclined obliquely upward, and the imaging lens and the camera body are located at the second top of the body.
Optionally, in a preferred embodiment of the present invention, the VR system further includes a first transmitting lens set, a first refractive reflector, and a screen, where the first refractive reflector is located on a side of the transmitting lens set away from the dichroic mirror and is used for reflecting light emitted by the screen to the first transmitting lens set, and the first transmitting lens set is disposed on a side of the dichroic mirror away from the glasses.
Alternatively, in a preferred embodiment of the present invention, the first transfer lens group includes a first plano-convex lens and a concave-convex lens, the first plano-convex lens being disposed between the dichroic mirror and the concave-convex lens.
Optionally, in a preferred embodiment of the present invention, the above imaging system further includes a second transfer lens group and a second refraction mirror, the second refraction mirror is located between the imaging lens and the second transfer lens group and is used for reflecting the light collected by the imaging lens to the second transfer lens group, and the second transfer lens group is located between the second refraction mirror and the camera body.
Alternatively, in a preferred embodiment of the present invention, the second transfer lens group includes a biconvex lens and a second plano-convex lens, the biconvex lens being disposed between the second refractive mirror and the second plano-convex lens.
Optionally, in a preferred embodiment of the present invention, the second body is further provided with a bluetooth transmission device and/or a data interface for transmitting images.
A virtual reality imaging apparatus comprising the fundus camera described above.
The embodiment of the invention has the beneficial effects that:
in the fundus camera provided by the invention, the human eye can receive the light emitted by the screen so that the human eye can see the content displayed on the screen clearly. When light passes through the dichroic mirror, most of visible light is transmitted, and infrared light and a small part of visible light are reflected back, so that the content on the screen can still be seen by human eyes, and meanwhile, infrared light can also transmit out images of eyeground of the human eyes. The imaging lens can collect and transmit the light reflected by the dichroic mirror to the camera body, so that the image of the eye fundus of the human eye is shot, and a user can see the image of the eye fundus of the user.
In addition, the embodiment of the invention also provides a virtual reality imaging device, which comprises the fundus camera and can display images in human eyes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present invention and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples
Referring to fig. 1, the present embodiment provides an fundus camera 100 including a VR system 110, an imaging system 120, and an infrared illumination lamp 130.
The VR system 110 includes a first body 111, a contact lens 112, a dichroic mirror 113, a first transfer lens group 114, a first refractive mirror 115, and a screen 116.
The contact lens 112 is disposed in the first body 111, the human eye is located at one side of the contact lens 112, the dichroic mirror 113 is located at the other side of the contact lens 112, and the dichroic mirror 113 is obliquely disposed in the first body 111 for reflecting infrared light outwards. The first refraction mirror 115 is located at a side of the transfer mirror group away from the dichroic mirror 113 and is used for reflecting the light emitted by the screen 116 to the first transfer mirror group 114, and the first transfer mirror group 114 is disposed at a side of the dichroic mirror 113 away from the contact lens 112. The human eye can collect the light emitted from the screen 116, so that the content displayed on the screen 116 can be seen clearly. The light emitted from the screen 116 can sequentially pass through the first refractive mirror 115, the first transfer lens group 114, the dichroic mirror 113, and the contact lens 112, and finally enter the human eye.
Specifically, the first transfer lens group 114 includes a first plano-convex lens 117 and a meniscus lens 118, and the first plano-convex lens 117 is disposed between the dichroic mirror 113 and the meniscus lens 118. The light reflected by the first refraction reflecting mirror 115 can be well transmitted through the arrangement of the first plano-convex lens 117 and the concave-convex lens 118, and the light smoothly enters the human eye, so that the human eye can clearly see the content reflected by the first refraction reflecting mirror 115.
The dichroic mirror 113 has a plate shape, and the mirror surface of the dichroic mirror 113 may be inclined downward or inclined upward, and the imaging lens 122 and the camera body 123 are provided at the exit of the light reflected by the dichroic mirror 113. Specifically, referring to fig. 1, when the mirror surface of the dichroic mirror 113 is inclined obliquely downward, the imaging lens 122 and the camera body 123 are located at the bottom of the first body 111. Referring to fig. 2, when the mirror surface of the dichroic mirror 113 is inclined obliquely upward, the imaging lens 122 and the camera body 123 are located at the second top of the body.
Note that the dichroic mirror 113 may reflect not only infrared light but also part of natural light.
The imaging system 120 includes a second body 121, an imaging lens 122, a camera body 123, a second transfer mirror group 124, and a second refractive mirror 125.
The second body 121 is configured to accommodate the imaging lens 122, the camera body 123, the second transmission lens group 124, and the second refraction mirror 125, and in this embodiment, the second body 121 is connected to the first body 111, so as to implement collective imaging on the light reflected by the dichroic mirror 113. Specifically, the imaging lens 122 functions to converge the infrared light reflected by the dichroic mirror 113 into the camera body 123. The second refraction mirror 125 is located between the imaging lens 122 and the second transfer mirror group 124 for reflecting the light collected by the imaging lens 122 to the second transfer mirror group 124, and the second transfer mirror group 124 is located between the second refraction mirror 125 and the camera body 123. The camera body 123 can take an image of the fundus of the human eye.
By the dichroic mirror 113 provided between the first transfer lens group 114 and the contact lens 112, most of the visible light passes through the dichroic mirror 113, and the infrared light and a small part of the visible light are reflected back, so that the contents on the screen 116 can still be seen by the human eye, and at the same time, the infrared light can also transmit out the image of the fundus of the human eye.
The imaging lens 122 can collect and transmit the light reflected by the dichroic mirror 113 to the camera body 123, and further, the image of the fundus of the human eye is photographed, so that the user can see the image of the fundus of the user himself. Wherein, the second transmitting lens group 124 and the second refraction reflecting lens 125 transmit and reflect to reduce the volume of the second body 121.
The second transfer lens group 124 includes a lenticular lens 126 and a second plano-convex lens 127, and the lenticular lens 126 is disposed between the second refractive mirror 125 and the second plano-convex lens 127. The side-by-side arrangement of the lenticular lens 126 and the second lenticular lens 127 can well transfer the light collected by the imaging lens 122, and smoothly enter the camera.
An infrared illumination lamp 130 is disposed between the first body 111 and the second body 121 for infrared light compensation to the dichroic mirror 113. The infrared light lamp 130 can supplement light to ensure that the human eye can clearly see what is displayed on the screen 116.
In addition, the second body 121 is further provided with a bluetooth transmission device and/or a data interface for transmitting images. The mobile phone can be used as ornamental entertainment, and can also receive images transmitted by the Bluetooth or data interface, that is, a user can see the fundus images of the user.
The embodiment combines popular VR products with professional ophthalmic medical devices, and enables the professional devices to enter home with the rapidly expanding VR products.
The fundus camera 100 operates on the principle that: the light emitted from the screen 116 can enter the human eye through the first refractive mirror 115, the first transfer lens group 114, the dichroic mirror 113 and the glasses lens 112, and the human eye can receive the light emitted from the screen 116 and then can see the content displayed on the screen 116. When passing through the dichroic mirror 113, most of the visible light is transmitted, and infrared light and a small portion of the visible light are reflected back, so that the contents on the screen 116 can still be seen by the human eye, while infrared light can also transmit out the image of the fundus of the human eye. The imaging lens 122 can collect and transmit the light reflected by the dichroic mirror 113 to the camera body 123, and further, the image of the fundus of the human eye is photographed, so that the user can see the image of the fundus of the user himself.
In summary, in the fundus camera 100 provided by the present invention, the human eye can receive the light emitted from the screen 116 and the human eye can see the content displayed on the screen 116. When passing through the dichroic mirror 113, most of the visible light is transmitted, and infrared light and a small portion of the visible light are reflected back, so that the contents on the screen 116 can still be seen by the human eye, while infrared light can also transmit out the image of the fundus of the human eye. The imaging lens 122 can collect and transmit the light reflected by the dichroic mirror 113 to the camera body 123, and further, the image of the fundus of the human eye is photographed, so that the user can see the image of the fundus of the user himself.
In addition, the embodiment of the invention also provides a virtual reality imaging device, which comprises the fundus camera 100, and the fundus camera can present images in human eyes.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.