KR101591937B1 - Surgical head mounted display - Google Patents

Abstract

[0001] The present invention relates to an enlarging device for head-mounted surgery, which is a see-through type, and can acquire an image of a surgical site so as to visually confirm an actual situation together with an enlarged image of a surgical site, And a body part for mounting the image processing part and the glass in the form of a frame of the glasses. The body part is made of a conventional surgical loupe The present invention provides a head-mounted display for surgery which is smaller and lighter than a surgical microscope and can enlarge a magnification of a surgical site more than a surgical loupe.

Description

[0001] SURGICAL HEAD MOUNTED DISPLAY [0002]

The present invention relates to a head-mounted display device and, more particularly, to a head-mounted display device which is smaller and lighter than a conventional surgical microscope or a surgical Loupe, and can enlarge a surgical site at a higher magnification, To a surgical head-mounted display.

In general, doctors use surgical glasses for a variety of surgical operations, including ophthalmology, dentistry, and urology. Surgical glasses, called Loupe, are used to enlarge the surgical site by adding a magnifying lens to the front of a general spectacle lens as shown in Figs. 1A to 1C.

FIGS. 1A to 1C are diagrams showing a conventional surgical loupe. FIG. 1A is a view showing a conventional surgical loupe having a magnification of 2 ×, 2.5 ×, and 3 ×, or a high resolution Hi Resolution lens is used. It is a type of surgical loupe that is suitable for micro surgery such as cosmetic surgery or ophthalmic surgery. Fig. 1B is a prismatic high magnification lupe, 3.5 times and 4.5 times And 5.5 times magnification. FIG. 1C shows a loupe widely used in ophthalmology, dentistry, urology and the like at a relatively low magnification and light weight of 2.5 times.

As shown in FIGS. 1A to 1C, a conventional surgical loupe is provided in a form of combining an enlarged lens with an additional structure so that an angle and a distance can be adjusted in a frame similar to a general eyeglass frame. However, since a frame similar to the eyeglass frame is not suitable for a long time due to the weight of the enlarged lens, it is combined with a headband as shown in FIG. 2 in order to reduce a load applied to the neck of a practitioner .

On the other hand, since the magnification obtained by the surgical loupe is not more than 5.5 times at maximum, a surgical microscope is used when a magnification of 10 times to 40 times is required.

As described above, although the surgical loupe has been used to prevent the neck disks of the surgeons by using various types and sizes of magnifying lenses in combination with the head band depending on the characteristics of the surgical field, it is still necessary to take a considerable weight in order to obtain a high magnification , In particular, it is impossible to obtain a high magnification of 10 times or more.

Therefore, as a conventional technique for overcoming such a problem, Korean Patent Registration No. 10-1190265 (registered on October 05, 2012) can enlarge a surgical site image by zooming in or enlarging a desired amount by a practitioner, A surgical loupe that can observe images under visible light as well as infrared and ultraviolet light sources is presented.

In the conventional technique, at least one of light rays of infrared rays, ultraviolet rays, or visible rays is irradiated to a surgical site, an image of the surgical site is digitized using the irradiated light, and then the image is enlarged And provides the processed image to an image processing unit for displaying the processed image, wherein the image processing unit is mounted on a frame part which is supported around the eye of the user so that the user can see the surgical site.

That is, in the related art, the head mount apparatus composed of the image processing unit and the frame digitizes the image of the surgical site using light rays (infrared rays, ultraviolet rays, visible rays, etc.) irradiated to the surgical site, A controller (PC or the like) connected wirelessly expands the digitized image and provides the enlarged digital image to the display unit of the head mount apparatus so that the wearer can view the enlarged digital image.

Therefore, the head mount enlarging apparatus according to the prior art can be made smaller and lighter than a surgical microscope or an optical glass lens structure, and is easy to install. Since it enlarges digitally not optically enlarged, The enlargement magnification can be increased and the surgical site can be easily observed.

However, in the case of performing the operation using the head mount enlarging device according to the related art, the wearer has to view only the enlarged image of his or her hands including the operation part, And this confusion is not overcome immediately. Therefore, there is a risk that the operator will make a crucial mistake in delicate surgery due to the difference between the actual situation and the enlarged image.

In addition, according to the conventional technique, there is a slight time difference at the time of confirming an actual situation and an enlarged image due to enlargement of an actual situation. However, there is no way to compensate for such a minute delay, There is still a problem in that it is not enough to apply to more elaborate surgery because the field of view is so narrow that the operator can not look around the surgical site as in a surgical microscope.

Korean Registered Patent No. 10-1190265 (registered on October 10, 2012)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a surgical head-mounted display capable of easily adjusting an enlargement magnification of a surgical site to a larger enlargement ratio.

Another object of the present invention is to provide a head-mounted display for surgery which not only can enlarge a surgical site at a higher magnification but also can be easily worn for a long period of time by miniaturization and weight reduction.

Another object of the present invention is to provide a head-mounted display for surgery which can be miniaturized and light in weight, can enlarge a surgical site at a higher magnification, and can provide information necessary for surgery to an operator during surgery.

Another object of the present invention is to provide a head-mounted display for surgery which can be used stably for delicate surgery by preventing confusion due to difference in recognition occurring between an actual situation and an enlarged image.

Another object of the present invention is to provide a method of compensating for a slight time difference occurring at a time of confirming an actual situation and an enlarged image due to a process of enlarging an actual situation and providing a wide field of view And a surgical head-mounted display that can be used for more sophisticated operations.

In order to accomplish the above object, the head-mounted display for surgery according to the present invention is a see-through type, in which an image of a surgical site is acquired so that an enlarged image of a surgical site and an actual situation can be visually checked together An image processor for enlarging the acquired image; A glass for confirming an image enlarged by the image processing unit and transmitting an actual situation; And a body part for mounting the image processing part and the glass in a frame shape of the glasses.

At this time, the image processing unit of the surgical head-mounted display according to the present invention includes an image acquisition unit configured of a zoom lens, a diaphragm, and an imaging unit and converting an image of a surgical site into digital image data, And an image magnifying unit configured to magnify an image displayed on the image display unit and provide an enlarged image to the wearer's eye through the glass, .

In this case, the surgical head-mounted display according to the present invention further includes a remote support unit for collecting various information including patient information necessary for surgery and transmitting the collected information to the image processing unit.

At this time, the image processing unit of the head-mounted display for surgery according to the present invention further includes a wireless unit for Bluetooth, WLAN, or RF-based wireless communication for wireless data communication with the remote support unit .

The image magnifying unit of the surgical head-mounted display according to the present invention includes a collimation lens for collimating image light emitted from the display device of the image display unit, and a collimated lens And a first waveguide having first and second reflection surfaces so that the image light having passed through the cylinder lens is incident on the first and second reflection surfaces to change the traveling direction twice .

In this case, the image magnifying unit of the head-mounted display for surgery according to the present invention may further include a second waveguide having a shape opposite to that of the first waveguide.

At this time, the first waveguide of the surgical head-mounted display according to the present invention is a horizontally enlarging means for enlarging the image in the horizontal direction on the second reflecting surface, and forms a lattice structure therein, And a diffractive optical element (DOE) having a tilted angle so that the reflection surface can change the direction of the reflection angle to a desired direction.

The image magnifying unit of the surgical head-mounted display according to the present invention may further include a collimation lens for collimating the image light emitted from the display device of the image display unit and a collimated lens passing through the collimation lens, A first wedge prism having a first magnifying means for magnifying an image in a horizontal direction when light is incident, and a second wedge prism for magnifying an image in a vertical direction by passing through the first wedge prism, The second wedge prism having the second enlarging means and the second wedge prism and the second wedge prism and the second wedge prism so as to prevent the distortion of the external image transmitted to the user by transmitting the image light reflected in the vertical direction and the second wedge prism, And a third wedge prism having a shape opposite to that of the second wedge prism.

In this case, the first enlarging means of the surgical head-mounted display according to the present invention is a holographic optical element (HOE) capable of forming a lattice structure therein and changing the direction of the reflection angle to a desired direction.

The first enlarging means of the head-mounted display for surgery according to the present invention is characterized by being a diffraction optical element (DOE) of a saw-tooth structure having an inclination angle so that the reflection surface can change the direction of the reflection angle to a desired direction.

As described above, the present invention is advantageous in that it is smaller and lighter than a surgical microscope including a conventional surgical loupe, and is easily worn for a long time by using a digital magnification method instead of an optical magnification, and the enlargement magnification can be greatly increased .

In addition, since the operator can easily confirm the information necessary for the operation during the operation, the present invention can contribute to improve the safety and accuracy of the operation.

In addition, the present invention is advantageous in that it can be used stably even in delicate surgery by preventing confusion due to difference in recognition occurring between an actual situation and an enlarged image.

In addition, the present invention is advantageous in that it can be used for more sophisticated operations by compensating for a slight time difference occurring at the time of confirming an actual situation and an enlarged image, .

Figs. 1A to 1C show a conventional surgical loupe,
2 shows a head band of a conventional surgical loupe,
3 is a perspective view of a surgical head-mounted display according to a preferred embodiment of the present invention,
Fig. 4 is an internal block diagram of the head-mounted display for surgery of Fig. 3,
FIG. 5 is a detailed structural diagram of an image enlarging unit according to an embodiment of the surgical head-mounted display of FIG. 3;
6A to 6D are views for explaining the principle of image horizontal enlargement of the image enlargement unit of FIG. 5,
FIG. 7 is a detailed structural view of an image enlarging part according to another embodiment of the head-mounted display for surgery of FIG. 3;
8A to 8C are views for explaining the principle of image vertical expansion of the image enlargement unit of FIG. 7,
9 is a view showing a modified example of the image enlarging unit of Fig. 7,
10 is a view showing still another modification of the image enlargement unit of FIG. 7;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. It should be noted that the same configurations of the drawings denote the same reference numerals as much as possible. It is to be understood that the present invention is not limited to the specific embodiments and that all changes, modifications, and alterations included within the spirit and scope of the present invention are intended to be illustrative, It is to be understood that the invention includes equivalents and alternatives. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

The terminology used in the description is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

FIG. 3 is a perspective view of a surgical head-mounted display according to a preferred embodiment of the present invention, and FIG. 4 is an internal block diagram of the surgical head-mounted display of FIG. 3, The surgical head-mounted display 100 is a see-through type. The head-mounted display 100 includes an image processor 100 for acquiring an image of a surgical site and enlarging the obtained image, (100), a glass (101) for confirming an image enlarged by the image processing unit (100) and transmitting an actual situation, and an image processing unit (100) and a glass And a body part 102 which is made of a metal.

The image processing unit 100 acquires an image of a surgical site, corrects the obtained image, displays a corrected image, enlarges the displayed image, and provides the enlarged image to the practitioner wearing the device through the glass 101. [ Meanwhile, the image processing unit 100 may display and magnify information required for surgery, including information of the operator, received from the remote support unit 160 through the wireless unit 150, and may be provided to the operator through the glass 101 . At this time, the information necessary for the operation including the information of the operated person may be displayed on the enlarged image of the operation site, or may be displayed separately or separately.

For this, the image processing unit 100 further includes a wireless unit 150 for Bluetooth, WLAN, or RF-based wireless communication for wireless data communication with the remote support unit 160, The image processing unit 100 may be provided in the body 102 to be described later. The wireless unit 150 stores various information including patient information required during operation in the remote support unit 160 or various information including patient information necessary for surgery from a separate DB provided from the remote support unit 160 And transmits it to the image processing unit 100.

The remote support unit 160 stores image data received from the image processing unit 100. The remote support unit 160 may be included in a small-sized PC and processes the expansion and storage of the image data received from the image processing unit 100 in a software manner. In addition, the remote support unit 160 may store various kinds of information including patient information required during operation, or may collect various information including patient information necessary for surgery from a separate DB provided outside, and transmit the collected information to the image processing unit 100 . At this time, the enlarged image and various information may be provided on the left / right side or separately. 4, the remote support unit 160 may be embedded in the image processing unit 100 or the body unit 102. The remote support unit 160 may be a separate device. The communication between the remote support unit 160 and the image processing unit 100 through the wireless unit 150 is well known in image processing and wireless data communication, and a detailed description thereof will be omitted.

The body part 102 fixes the image processing part 100 around the eyes of the wearer so that the wearer can see the surgical site through the image processing part 100. [ The body part 102 mounts the image processing part 100 and controls the focal length and illumination of the image processing part 100 to receive a clear image in an optimum state. At this time, a screw or a latch may be used to adjust the position of all or a part of the image processing unit 100 to control the focal distance of the image processing unit 100, and it is preferable to use a small motor.

The body part 102 includes a plurality of control buttons to input a signal for controlling the remote support part 160 including a video image having a magnification desired by the wearer so that the remote support part 160 ) To the image processing unit (100). Meanwhile, the body part 102 may be provided with a hair fixing part which can stably wear the device for long-time operation, either integrally or in combination. The head fixing part can be formed in various forms such as a spectacle leg or a hair band so as to fix the surgical head-mounted display according to the present invention to the head of the wearer, and can be provided with a tightening part for adjusting according to the wearer.

4, the image processing unit 100 includes an image obtaining unit 110, an image correcting unit 120, an image displaying unit 130, and an image enlarging unit 140, and further includes a wireless unit 150 can do.

The image acquiring unit 110 includes a zoom lens, a diaphragm, and an image sensing unit. The zoom lens unit optically enlarges incident light beams, and preferably has an autofocus function. A diaphragm adjusts the amount of light rays that pass through the zoom lens unit. When the diameter is large, a bright image is formed. When the diameter is small, a dark image is formed. The image pickup unit generates an image using light rays passing through the diaphragm, converts the generated image into digital image data, and may be a CCD camera or a CMOS camera, but is not limited thereto. The image acquisition unit 110 transmits the digital image data to the image correction unit 120.

The image correcting unit 120 is used to sharpen an image that appears blurry at the time of surgery, and may be omitted if necessary.

The image display unit 130 includes a display board, a backlight, and a display device. The display board receives the digital image data received from the image correction unit 120, and the backlight is a light emitting unit that emits light necessary when the display device is an LCD. The display element receives the digital image data from the display board and displays it. When the display device is an LCD monitor, the LCD monitor is immediately in front of the viewer, and a large screen equivalent to 30 to 60 inches is displayed to the wearer. The display device can be an LCD or an OLED, and can be used if it is a thin and light display device.

5, the image magnifying unit 140 includes a collimation lens 141, a cylinder lens 143, and a wave guide 145. Although not shown, .

FIG. 5 is a detailed structural view of an image enlarging unit according to an embodiment of the surgical head-mounted display of FIG. 3. As shown in FIG. 5, the image enlarging unit 140 enlarges the image light emitted from the display element 130, 130 and collimated by the collimation lens 141 so that the optical axes coincide with each other. The collimated light is then collimated through the cylinder lens 143 in the horizontal direction, And is incident into the waveguide 145 in an excited state.

The image light incident into the waveguide 145 is reflected in the direction of 90 degrees from the first reflection surface 142 which is inclined by 45 degrees with respect to the incident surface of the waveguide 145 and travels parallel to the incident surface in the horizontal direction The image is magnified in the horizontal direction by the horizontal magnifying means 148 provided on the inclined surface 146 opposite to the first reflecting surface 142 in the wave guide 145 and then reflected vertically forward By emitting the wave guide 145, the user can view an image enlarged in the horizontal and vertical directions more than the size of the initial display device.

In order to minimize the distortion of the image by equalizing the image enlargement in the horizontal direction and the image enlargement in the vertical direction, the image enlargement ratio of the cylinder lens 143 in the vertical direction and the image enlargement ratio of the waveguide 145 The ratio between the inclination angle of the one reflection surface 142 and the inclination angle 146 of the horizontal direction expansion means 148 should be the same.

Another waveguide (not shown) disposed on the rear surface of the waveguide 145 may be a flat surface such that when the horizontal magnifying unit 148 of the waveguide 145 is a holographic optical element (HOE) And when the horizontal direction magnifying means 148 of the waveguide 145 is a diffractive optical element (DOE), it has a sawtooth shape opposite to that of the diffractive optical element of the waveguide 145, And provides a compensated optical system to be viewed without.

Meanwhile, since the image processing unit 100 divides the left and right images by software in the remote support unit 160, the image processing unit 100 does not generate the left and right images, and thus, two independent lens modules necessary for the left and right images are provided So that it is possible to provide a device that is further reduced in size and weight.

FIGS. 6A to 6D are diagrams for explaining the principle of image enlargement in the image enlargement unit of FIG. 5, and FIG. 6A is a diagram showing a course of a general image light which does not have the horizontal enlargement means. 6A, since the incident angle &thetas; and the reflection angle &thetas; 'of the slanted surface must be the same, the width d of the incident image light is equal to the width d' of the reflected image light.

6B schematically illustrates the course of the image light in the case where the holographic optical element HOE is held as the horizontal direction magnifying means 148 on the inclined surface 146 in the waveguide 145. In FIG. 6B, The image light incident on the inclined plane reflects the image light to the vertically inputted downward direction according to the pattern pattern previously inputted so that the angle of diffraction of the image light in the holographic optical element HOE according to the wavelength of the image signal is determined.

At this time, in order to input the diffraction angle to the holographic optical element HOE in advance, as shown in FIG. 6C, the laser beam is horizontally incident on the opposite direction of the holographic optical element HOE , And another laser beam (Reference Beam) is irradiated with an inclination angle, thereby engraving a pattern pattern into which the diffraction angle is preliminarily inputted into the holographic optical element (HOE).

After the input is completed, if the image light of the same wavelength band as the object beam used for the input is irradiated at the same angle as the laser beam (Reference Beam) Reflects the image light in the opposite direction of the laser beam (object beam). At this time, the width d of the image light is enlarged to d 'and reflected. These theories and tests have been scientifically verified and applied in various fields. The holographic optical element (HOE) can input pattern patterns using R, G, and B colors, which are the three primary colors of the color, so that the same holographic optical element (HOE ) May be simultaneously irradiated with an RGB laser beam to form a pattern pattern or a holographic optical element (HOE) into which pattern patterns of R, G, and B are input, and then attached to an inclined surface by a lamination method. A photopolymer is generally used for the holographic optical element (HOE).

6D is a diagram illustrating the course of the image light in the case where the diffractive optical element DOE is held as the horizontal direction magnifying means 148 on the inclined surface 146 in the waveguide 145. In FIG 6D, The image light d incident on the oblique surface is reflected in a magnified state as an image light d 'vertically downward by a serrated reflecting surface protruding from the surface of the DOE. At this time, the spacing of each sawtooth structure should be at least 10 탆, since it must be larger than the wavelength of visible light, and 200 탆 or less considering the size of the pupil of a human eye. The ideal spacing between the teeth is between 10 and 50 ㎛, considering that the grating line can be recognized by the human eye to be 50 ㎛. The depth is a function of the angle of the diffraction grating and the angle of the slope, Lt; / RTI >

The outer surface of the diffractive optical element (DOE), which is the horizontal direction magnifying means 148, is subjected to a half mirror coating process so that the user can simultaneously view the image light reflected inside the wave guide 145 and the image light transmitted from the outside .

Accordingly, the head-mounted display for surgery according to the present invention can be applied to the horizontal direction enlarging means 148 provided in the wave guide 145 and the vertical direction enlargement 148 provided in the other wave guide located on the rear side of the wave guide 145 It is possible to minimize the use of the lens for enlarging the image and to enlarge the image so that the user can view the large screen despite the thin thickness. Further, by suppressing the use of a means for forcing a light loss like a half mirror as much as possible, a very bright and clear image with almost the same level as the original image can be provided.

FIG. 7 is a detailed structural view of an image enlarging unit according to another embodiment of the surgical head-mounted display of FIG. 3. FIG. 7 is another detailed enlarged view of the image enlarging unit 240 of the surgical head- 241, a first wedge prism 243, a second wedge prism 245, and a third wedge prism 247.

In the surgical head-mounted display according to the present invention, the image light emitted from the display device 130 is transmitted through the collimation lens 241 positioned so that the optical axes thereof are parallel to the display device 130 Parallel light and enters into the first wedge prism 243 and travels in parallel in the horizontal direction and is horizontally expanded by horizontally extending means provided on the inclined surface 244 of the first wedge prism 243, And then is reflected from the first wedge prism 243. The image light reflected vertically downward of the first wedge prism 243 is incident on the second wedge prism 245 located below the first wedge prism 243 and is incident on the inclined surface of the second wedge prism 245 246, the image is enlarged in the vertical direction and then reflected vertically forward, and is output from the second wedge prism 245, so that the user can see the image in the horizontal and vertical directions The enlarged image can be viewed.

At this time, in order to minimize image distortion by making the ratio of image enlargement in the horizontal direction and image enlargement in the vertical direction the same, the inclination angles of the first wedge prism 243 and the second wedge prism 245 are set to be the same shall.

The third wedge prism 247 disposed on the rear surface of the second wedge prism 245 has a sloped surface as a plane when the vertical widening means of the second wedge prism 245 is a holographic optical element, When the vertically expanding means of the two-wedge prism 245 is a diffractive optical element (DOE), it has a sawtooth shape opposite to that of the diffractive optical element (DOE) of the second wedge prism 245, Thereby providing a compensated optical system for viewing.

The principle of image horizontal enlargement of the image enlargement unit 240 of the head-mounted display for surgery according to an embodiment of the present invention shown in FIG. 7 is the same as the image horizontal enlargement principle described above with reference to FIGS. 6A to 6D, Hereinafter, the principle of vertical image enlargement will be described in detail with reference to FIGS. 8A to 8B.

8A to 8C are views for explaining the image vertical enlargement principle of the image enlargement unit of the head-mounted display for surgery according to the present invention, wherein FIG. 8A is a diagram FIG. 8A, since the incident angle? Of the inclined plane and the reflection angle? 'Are equal to each other, the width d of the incident image light is equal to the width d' of the reflected image light, so there is no enlargement effect.

8B schematically illustrates the course of the image light when holding the holographic optical element HOE as the magnifying means 248 perpendicular to the slope 246 in the second wedge prism 245. FIG. 6B, the image light incident on the oblique plane in the vertical direction by the same principle is input into the holographic optical element 248 in such a manner that the angle of diffraction of the image light in accordance with the wavelength of the image signal is determined, And reflects the image light in the horizontal direction already input.

Fig. 8C is a diagram showing the course of the image light when the diffraction optical element DOE is held as the horizontal direction enlarging means 249 in the inclined plane at 245 in the second wedge prism, and Fig. The image light d incident on the inclined plane in the vertical direction by the same principle becomes the image light d 'horizontally forward by the serrated reflecting surface protruding from the surface of the diffractive optical element 249, Reflection. The outer surface of the diffractive optical element (DOE), which is the vertical direction enlargement means 249, is coated with a half mirror coating process so that both the image light reflected inside the second wedge prism 245 and the image light transmitted from the outside can be seen at the same time do.

FIG. 9 is a view showing a state in which a 45-degree reflection plate 242 is added between the collimation lens 241 and the first wedge prism 243 of the image enlargement unit 240 of the surgical head- The display device 130 and the collimation lens 241 can be arranged in a frame structure.

With the above configuration, the image light emitted from the display device 130 is converted into parallel light through the collimation lens 241 disposed so that its optical axis is parallel to the display device, And is incident into the first wedge prism 243. The enlarged image is provided to the user by the enlarging means in the horizontal and vertical directions as described above with reference to FIG.

FIG. 10 is a view showing a video image in a horizontal direction and a vertical direction between the first wedge prism 243 and the second wedge prism 245 of the image enlarging unit 240 of the surgical head-mounted display according to the present invention shown in FIG. (FOV) can be further increased by adding a lens 251 having power as a means for further enlarging the viewing angle FOV.

The head-mounted display for surgery according to the present invention having the above-described configuration comprises a horizontal enlarging means 244 provided by the first wedge prism 243 and a vertical enlarging means (not shown) provided by the second wedge prism 245, It is possible to minimize the use of the lens for enlarging the image and to enlarge the image so that the user can view the large screen despite the thin thickness. In addition, by using the means for forcing the light loss like the half mirror as much as possible, it is possible to provide a very bright and clear image with a level almost equal to that of the original image.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

Therefore, a surgical head-mounted display according to the present invention is available in the scientific field such as biology, physics, or the engineering field utilizing an optical stereomicroscope, in which not only a medical field but also an x2-x40 magnification is widely used, , And it is applied to all situations where it is necessary to expand the semiconductor production process inspection in the industrial field, so that a wider area image can be obtained than the gross confirmation.

Claims (10)

A see-through type image processing unit for acquiring an image of a surgical site and enlarging the obtained image so that an actual situation can be visually confirmed together with an enlarged image of a surgical site; A glass for confirming an image enlarged by the image processing unit and transmitting an actual situation; And a body for mounting the image processing unit and the glass in a frame form of glasses,
Wherein the image processing unit comprises:
An image acquisition unit configured to convert an image of a surgical site into digital image data, which is composed of a zoom lens, a diaphragm, and an imaging unit,
A display unit configured by a display board, a backlight, and a display element, the image display unit displaying the digital image data converted by the image acquisition unit,
And an image magnifying unit for magnifying an image displayed on the image display unit and providing an enlarged image to the wearer's eyes through the glass,
Wherein the image enlarging unit comprises:
A collimation lens for collimating the image light emitted from the display device of the image display unit,
A cylinder lens for receiving an image light that is parallel-aligned through the collimation lens to provide an image enlarged vertically;
And a first waveguide having first and second reflective surfaces so that the image light having passed through the cylinder lens is incident and can be changed twice in the traveling direction.
delete The method according to claim 1,
Further comprising a remote support unit for collecting various information including patient information necessary for surgery and transmitting the collected information to the image processing unit.
The image processing apparatus according to claim 3,
Further comprising a wireless unit for Bluetooth, WLAN, or RF-based wireless communication for wireless data communication with the remote support unit.
delete The method according to claim 1,
Further comprising a second waveguide having a shape opposite to that of the first waveguide.
7. The apparatus of claim 6, wherein the first waveguide comprises:
A holographic optical element (HOE) capable of forming a lattice structure inside and changing the direction of a reflection angle to a desired direction, and a reflecting surface And a diffractive optical element (DOE) of a saw-tooth structure having an oblique angle so as to be able to change a direction in a desired direction.
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