JPH09266919A - Display device and method for image display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a prescribed image on both eyes when a minute area is examined with both eyes. SOLUTION: A liquid crystal display(LCD) 31 is to output images for reference during an operation. Rays supplied from the optical system 21 of an optical processing part 12 for the right eye 71 are made to go through a half mirror 33 toward the right eye 71 by way of an eye piece 11, and the image outputted from the LCD 31 is reflected on the half mirror 33 by way of the eye piece 11 toward the right eye 71. Rays supplied from the optical system 21 of the optical processing part 12 for the left eye 72 are made to go through a half mirror 34 at a prescribed rate toward the left eye 72 by way of the eye piece 11, and the rays are reflected on the half mirror 34 toward a TV camera 36 by way of a lens 35.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display apparatus and method, and more particularly, to an image display apparatus and method for observing a microscopic portion with both eyes to display an image of the microscopic portion to both eyes. The present invention relates to an image display device and method for displaying a predetermined image on at least one of both eyes.

[0002]

2. Description of the Related Art When performing an operation, for example, after incision to expose the affected area, the operator performs the operation while directly looking at the affected area. However, when the affected part is in a position where it cannot be exposed or when the affected part is a minute part, conventionally, surgery is performed while observing the affected part using an optical device such as a surgical microscope. For example, when performing brain surgery, the affected area is hidden by the skull, so a hole is made in the skull and an endoscope is inserted to observe the affected area, and if necessary, the affected area can be observed with a surgical microscope. While surgery is performed.

[0003] During such an operation, various materials (CT (Computed Tomography) and MRI (Magnetic Resonance) are used to grasp the condition of the patient and the condition of the affected area.
sonance Image) tomographic image of the affected area and the patient's electrocardiogram).

When a surgical operation is performed while observing an affected area with a surgical microscope, when referring to such materials, the operator (the person who is performing the operation) changes his / her posture and changes the line of sight to the surgical microscope. The related material is referred to by moving the eyepiece (image of the affected part) to another CRT or the like on which the material is displayed.

[0005]

However, by changing the posture during the operation as described above, there is a possibility that the affected area may be accidentally damaged, especially when performing an operation on a minute portion. Have the problem of being dangerous.

The present invention has been made in view of such a situation, and a predetermined device is added to an optical device for observing a minute portion with both eyes, and an image to be referred to is output inside the device. However, by displaying the image on the eyes of the operator, it is possible to refer to the image without changing the posture.

[0007]

According to another aspect of the present invention, there is provided an image display device, which comprises an image output means for outputting a predetermined image and an image of a minute portion supplied from an optical device to an observer's eye. A first state to be displayed and a display unit capable of selecting one of a second state in which the image output by the image output unit is displayed to at least one of both eyes of the observer. It is characterized by

According to the image display method of the seventh aspect, both a first state in which an image of a minute portion supplied from an optical device is displayed to the observer's eyes and a predetermined image is displayed to both the observer and the observer. Second display for at least one of the eyes
It is characterized in that any one of the states can be selected.

In the image display device according to the first aspect, for example, the image output means outputs an image by CT or the like, and the display means displays an image of a minute portion supplied from the optical device to an observer's eye. Or the image output by the image output means is displayed to the right eye of the observer.

In the image display method according to the seventh aspect, for example, an image of a minute portion supplied from an optical device is displayed on an observer's eye, or an image obtained by CT or the like is observed by the observer. Display for the right eye of.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a surgical microscope equipped with the image display device of the present invention. As described above, the image display device 1 includes the eyepiece 1 of the surgical microscope 2.
1 and the optical processing unit 12, the light from the optical processing unit 12 is emitted to the eyepiece 11, and an image to be referred to during surgery is provided to the operator through the eyepiece 11.

As shown in FIG. 2, the optical processing section 12 takes in light from the affected area 41 (light corresponding to the right eye and light corresponding to the left eye) by a predetermined optical system 21 (FIG. 3). rear,
The light is incident on the image display device 1.

FIG. 3 shows the configuration of the first embodiment of the image display device of the present invention. In the first embodiment, the liquid crystal display (LCD) 31 (image output means) outputs (displays) an image to be referred to during surgery.

The half mirror 33 (display means) transmits the light (image) corresponding to the right eye 71 supplied from the optical system 21 of the optical processing unit 12 toward the right eye 71 via the eyepiece 11. At the same time, the light (image) from the LCD 31 supplied via the lens 32 is reflected toward the right eye 71 via the eyepiece 11.

The half mirror 34 transmits the light corresponding to the left eye 72, which is supplied from the optical system 21 of the optical processing section 12, toward the left eye 72 via the eyepiece 11 at a predetermined ratio, and TV camera 3 via lens 35
6 (imaging means) is reflected.

The TV camera 36 uses, for example, a CCD light receiving element to supply light (image) supplied through the lens 35.
To an electric signal, and the image processing circuit 51 (control means)
(Fig. 4).

FIG. 4 shows an electrical configuration example of this embodiment. When the image processing circuit 51 is supplied with a signal according to the operation of the operator 61 or the assistant 62 of the input device 52, the image processing circuit 51 responds to the operation by the LCD 31, TV.
A camera 36, a light source 37 for irradiating the affected area 41 with light,
The storage device 55 and the external CRT 56 are controlled. By operating the input device 52 while the assistant 62 looks at the affected area 41 displayed on the external CRT 56, the surgeon 61 can concentrate on the operation.

The image processing circuit 51 stores the image data supplied from the external input in the storage device 55 as necessary, and the image data supplied from the external input or the image data stored in the storage device 55. Read
The image is output to the LCD 31 and the external CRT.

Further, the image processing circuit 51 is used for the TV camera 3
The image photographed by 6 is stored in the storage device 55 and displayed on the external CRT 56 as necessary.

Next, referring to the flowchart of FIG.
The operation of this embodiment when displaying an image on the LCD 31 will be described.

First, when the operator 61 or the assistant 62 performs an operation corresponding to the display of a predetermined image on the input device 6, the image processing circuit 51 causes the image processing circuit 51 to perform step S1.
In, the data of the selected image is acquired from the external input or the storage device 55.

Next, in step S2, the image processing circuit 51 turns off the affected area light source 37, and then in step S3, sets the image data acquired in step S1 to L.
Output to CD31. In this way, by turning off the light source 37 for the affected area, only the image from the LCD 31 is transmitted to the right eye 71 of the operator 61 through the half mirror 33 (because light (image) cannot be obtained from the affected area 41). Is displayed.

In step S4, the image processing circuit 5
1 waits until the operator 61 or the assistant 62 performs an operation corresponding to the end of the image display on the input device 6.

When it is determined in step S4 that the operation corresponding to the end of the image display has been performed, step S4
In step 5, the image processing circuit 51 turns on the affected area light source 37. In this way, when the affected part light source 37 is turned on, the image of the affected part 41 is displayed again on the right eye 71 and the left eye 72 of the operator 61 via the half mirrors 33 and 34.

As described above, the operator 61 or the assistant 62 operates the input device 6 to output a predetermined image from the LCD 31 of the image display device 1, and the operator 6
It can be displayed for one eye 71, 72.

In this embodiment, CT and MRI are used.
In addition to the image by, data such as blood pressure value and electrocardiogram can be displayed.

FIG. 6 shows the configuration of the second embodiment of the image display device of the present invention. This embodiment has two LCDs.
It has 31L and 31R, and outputs images to be displayed to the right eye 71 and the left eye 72, respectively.

The LCD 31L outputs the image displayed for the left eye 72 to the half mirror 33L via the lens 32L.

The half mirror 33L emits light corresponding to the left eye 72, which is supplied from the optical system 21 of the optical processor 12.
The LCD 31L which is transmitted through the eyepiece 11 toward the left eye 72 and is supplied through the lens 32L
Light (image) from the left eye 72 through the eyepiece 11.
It is designed to reflect toward.

The LCD 31R outputs the image to be displayed to the right eye 71 to the half mirror 33R via the lens 32R.

The half mirror 33R emits light corresponding to the right eye 71, which is supplied from the optical system 21 of the optical processing section 12,
The LCD 31R is transmitted through the eyepiece 11 toward the right eye 71 and is also supplied through the lens 32R.
Light (image) from the right eye 71 through the eyepiece 11.
It is designed to reflect toward.

The operation of the second embodiment when displaying the images on the LCDs 31L and 31R is the same as the operation of the first embodiment, and therefore its explanation is omitted.

As described above, the two LCDs 31L, 31
With R, a predetermined image can be displayed for each of the left and right eyes.

As described above, the right eye 71 and the left eye 7
Since images are displayed for 2 respectively, for example, CT
It is possible to display a stereoscopic image generated from a tomographic image of MRI or MRI. Further, such a stereoscopic image and the actual image of the affected area 41 can be displayed by being superimposed on the half mirrors 33L and 33R.

In the above embodiment, the display of the image of the affected part 41 and the image of the LCD 31 are switched by turning on / off the light source 37 for the affected part and the LCD 31, but the half mirror 33 is utilized by using a predetermined actuator. , 3
Images can be switched by moving 4 according to the image to be displayed.

The above-mentioned embodiment is an example of the case where it is mounted on the surgical microscope, and the present invention is not limited to the above-mentioned embodiment.

[0037]

As described above, according to the image display device of the first aspect and the image display method of the seventh aspect,
A first state in which an image of a minute portion supplied from an optical device is displayed to an observer's eye, and a predetermined state in which a predetermined image is displayed to at least one of both eyes of the observer. Since either of the two states can be selected, it is possible to refer to an image different from the image supplied from the optical device without changing the posture.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example in which an image display device of the present invention is mounted on a surgical microscope.

FIG. 2 is a diagram showing an example of how an image of an affected area is acquired by an endoscope.

FIG. 3 is a cross-sectional view showing a configuration example of a first embodiment of the image display device of the present invention.

FIG. 4 is a block diagram showing an electrical configuration example of the embodiment of FIG.

FIG. 5 is a flowchart illustrating an operation at the time of displaying an image according to the embodiment of FIG.

FIG. 6 is a cross-sectional view showing a configuration example of a second embodiment of the image display device of the present invention.

[Explanation of symbols]

 1, 1A image display device 2 surgical microscope 11 eyepiece 12 optical processing unit 13 optical fiber 14 endoscope 31, 31L, 31R liquid crystal display (LCD) 33, 33L, 33R, 34 half mirror 36 TV camera 37 light source 51 image processing circuit 52 input device 55 storage device 56 external CRT

Claims (7)

[Claims] 1. An image display device for displaying a predetermined image to the eye of the observer by adding a minute portion to an optical device for allowing the observer to observe the eye through a predetermined optical system. Image output means for outputting the image of, a first state of displaying an image of the minute portion supplied from the optical device to the eyes of the observer, and an image output by the image output means, An image display device, comprising: a display unit capable of selecting any one of the second states displayed for at least one of both eyes of the observer. 2. The image display device according to claim 1, further comprising a photographing means for photographing an image of the minute portion. 3. The image display device according to claim 1, further comprising control means for controlling the image output means and the display means. 4. The image display device according to claim 1, wherein the optical device is a surgical microscope, and the image output unit outputs an image by CT or MRI. 5. The image display device according to claim 1, wherein the image output unit outputs a stereoscopic image. 6. The image display device according to claim 1, wherein the display unit includes a half mirror. 7. An image display method for displaying a predetermined image to the eye of an observer, which is an optical device for observing a minute portion with the eye of the observer through a predetermined optical system. The image of the minute part supplied,
It is possible to select one of a first state in which the eye is displayed to the observer's eye and a second state in which the predetermined image is displayed to at least one of both eyes of the observer. An image display method characterized by: