JP2001258846A - Ophthalmic photographic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To successively regenerate a plurality of recorded images. SOLUTION: A light is emitted from a photographic light source 29 by use of a phorographic switch 4 after the end of an alignment, and its image is stored in a frame memory within a control means 33 and then recorded in an image recording means 7 when it is a satisfactory image. To observe the images stored in the image recording means 7, the photographic switch 4 is pressed to perform a delay, and a frame feed is performed by the pressed number of the photographic switch 4 so that the images are normally fed when a movable part 2 is in the right eye area of a test eye E, and reversely fed when it is in the left eye area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmologic photographing apparatus used in an ophthalmic clinic or a group examination.

[0002]

2. Description of the Related Art Conventionally, there has been known an ophthalmologic photographing apparatus comprising, for example, a fundus camera for photographing an electronic image with a low light quantity using a CCD camera or the like for recording a fundus image or the like. Normally, the photographed image is temporarily stored in an external or internal memory by operating a photographing switch, and this still image is displayed on an observation monitor or a dedicated monitor of the ophthalmologic photographing apparatus to determine whether a desired photographing has been performed. After confirming, if good, the image is stored in a recording medium such as a magneto-optical disk.

[0003]

However, in the above-mentioned conventional example, when browsing a plurality of images stored in an external image recording apparatus, the image recording apparatus is connected to a personal computer or the like, or the image recording is performed. A dedicated remote controller or the like is connected to the apparatus, and images are sequentially viewed on a screen of a personal computer, a dedicated monitor, or a display unit of an ophthalmologic apparatus. When the image recording apparatus is provided inside the ophthalmologic apparatus, a dedicated switch for image feed is provided in the ophthalmologic apparatus main body, and the image is browsed as in the case of the outside.

However, in order for an examiner to view an image, the user must move his / her line of sight between a display function and a reproduction function such as a dedicated remote controller, a keyboard, and a dedicated switch.
These operations have the drawbacks that the examiner is troublesome and troublesome, and that the circuit is complicated and the cost is increased.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide an ophthalmologic photographing apparatus capable of sequentially reproducing a plurality of images recorded by operating a photographing switch.

[0006]

An ophthalmologic photographing apparatus according to the present invention for achieving the above object has a movable portion mounted on a fixed portion so as to be horizontally movable, and illuminates the eye to be inspected on the movable portion. An illumination optical system, an imaging optical system for observing and photographing the eye image illuminated by the illumination optical system, and an ophthalmologic photographing apparatus including a photographing switch operated when photographing the eye image to be inspected. The display means for displaying an image sequentially switches a plurality of still images recorded in the image memory by operating the photographing switch and displays or selects and displays the still images.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiment. 1 to 4 show a first embodiment, and FIG. 1 is a rear view of a fundus camera, in which a movable section 2 is mounted on a fixed base 3 on a main body section 1 having a built-in optical system so as to be movable horizontally. ing. An operation stick 5 equipped with a photographing switch 4 on the movable part 2
Is provided. Further, a left and right detection switch 6 is provided on the movable section 2, and a face support 7 for the subject's eye, an image recording device 8, and a television monitor 9 are fixed to the fixed base 3.

FIG. 2 is a structural view of the optical system. An auxiliary lens 11 that can be inserted into and removed from the optical axis A is provided on the optical path A behind the objective lens 10 facing the eye E to be inspected. A perforated mirror 12, a taking lens 13, a rotatable mirror 14, a field lens 15, a field stop 16, an imaging lens 17, and an image pickup means 18 are disposed.

On the other hand, above the mirror 13, a dichroic mirror 19, a liquid crystal shutter 20 as a fixation target of the eye E, and a light source 21 are arranged.
To the left of 9, a field lens 22, a field stop 23, an imaging lens 24, and a television camera 25 for observing the eye to be inspected are arranged.

A lens 26, a ring stop 27, a mirror 28, a light source 29 for photographing, a relay lens 30, and a light source 31 for observation are arranged on the optical path in the incident direction of the perforated mirror 12. Here, the ring stop 27 is disposed substantially conjugate with the perforated mirror 12 with respect to the lens 26.

The outputs of the image pickup means 18 and the television camera 25 are connected to a control means 33 having a built-in judgment means and a frame memory.
Shooting switch 4, auxiliary optical system insertion / removal switch 34, image recording device 8, television monitor 9, movable unit left / right detection switch 6
Are connected respectively.

A light beam emitted from a light source for observing the anterior segment (not shown) illuminates the anterior segment of the eye E, and the reflected light from the anterior segment is reflected by the objective lens 10, the auxiliary lens 11, the perforated mirror 12, After passing through the lens 13, it is bent by the rotating mirror 14 and the dichroic mirror 19, and is transmitted through the field lens 22 and the imaging lens 24 to the observation television camera 25.
Image. The video output of the television camera 25 at this time is displayed on the television camera 9 shown in FIG. The examiner performs alignment of the subject's eye E based on the subject's eye image E '. When the alignment is completed, the examiner presses the auxiliary lens insertion / removal switch 34 to retract the auxiliary lens 11 from the optical path A.

At this time, the light source 31 for fundus observation is turned on,
The fundus Er of the eye E is illuminated via the relay lens 30, the mirror 28, the opening of the ring diaphragm 27, the lens 26, the perforated mirror 12, and the objective lens 10. The reflected light beam here passes through the pupil Ep, the objective lens 10, the opening of the perforated mirror 12, and the photographing lens 13, and forms a fundus image on the television camera 25 in the same manner as when observing the anterior eye. The video output of the television camera 25 at this time is displayed as a fundus image Pr on the television monitor 9 as shown in FIG.

The examiner observes the fundus moving image displayed on the television monitor 9, adjusts the photographing lens 13 to aim the fundus image Pr, and further photographs the desired part of the eye E to be examined. Activate a fixation target movement switch (not shown)
After moving the opening of the liquid crystal shutter 23 to guide the subject's eye to the desired site, the photographing switch 4 is pressed, the photographing light source 29 emits light, and the obtained fundus image is temporarily stored in the frame memory built in the control means 33. Store.

If the fundus oculi image E 'is a desired image, the photographing switch 4 or the auxiliary optical system insertion / removal switch 34 is used.
Is recorded as a still image in the image recording means 7. After recording the image, the auxiliary lens 11 is inserted again into the optical axis A so that alignment of the anterior segment of the next patient can be performed.

FIG. 5 is a flow chart showing a series of operation procedures.
The light source 29 for photographing is emitted by the
If the image is good, the image is recorded on an image recording means 7 such as a magneto-optical disk. In order to view the image stored in the image recording means 7, first, the photographing switch 4 is depressed, and then the movable unit 2 is depressed.
In the right eye region of the eye E to be examined, the image is forwarded, and in the left eye region, the image is forwarded by the number of times the photographing switch 4 is pressed so that the image is forwarded.

When the photographing switch 4 is kept depressed, continuous frame advance is performed. When the operation shifts to the observation of the eye E again after browsing the desired image, the photographing switch 4 is double-clicked, or the transition is made by the auxiliary optical system insertion / removal switch 34.

FIG. 6 is a flow chart for the second embodiment. The alignment, shooting, and storage of the eye E are the same as those in the first embodiment, and the thumbnail images shot so far are displayed on the television monitor 9 as shown in FIG. For example, marking is performed on the image so that the image is selected each time the photographing switch 4 is pressed, and when the desired image is selected, double-clicking the photographing switch 4 displays the image on the screen.
Only one sheet is enlarged and displayed as shown in FIG.

In this embodiment, the stored images are displayed as thumbnails. Instead of the images, text data uniquely associated with the images, such as ID numbers, are displayed so that the user can select from them. You may.

[0020]

As described above, the ophthalmologic photographing apparatus according to the present invention, when browsing a plurality of photographed images,
Since the examiner can perform an easy-to-understand operation without moving his / her gaze between the operation unit and the image display unit, efficient imaging and diagnosis can be performed.

[Brief description of the drawings]

FIG. 1 is a rear view of a first embodiment.

FIG. 2 is a configuration diagram of an optical system.

FIG. 3 is a front view of a television monitor on which an eye to be inspected is projected.

FIG. 4 is a front view of a television monitor on which a fundus image is projected.

FIG. 5 is a photographing / storage flowchart.

FIG. 6 is a photographing / storage flowchart of the second embodiment.

FIG. 7 is a front view of a television monitor displaying a thumbnail image.

FIG. 8 is a front view of a television monitor displaying an enlarged fundus image.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 2 Movable part 3 Fixed base 4 Shooting switch 7 Image recording device 9 TV monitor 18 Imaging means 21 Light source 25 TV camera 29 Lighting light source 31 Observation light source 33 Control means 34 Auxiliary lens insertion / removal switch

Claims (2)

[Claims] A movable section mounted on a fixed section so as to be movable horizontally, and an illumination optical system for illuminating the movable section with an eye to be examined.
Display means for displaying a captured image in an ophthalmologic imaging apparatus including an imaging optical system for observing and photographing the eye image illuminated by the illumination optical system and a photographing switch operated when photographing the eye image; An ophthalmologic photographing apparatus characterized in that a plurality of still images recorded in an image memory are sequentially switched and displayed by operating the photographing switch or selected from the still images and displayed. 2. The ophthalmologic photographing apparatus according to claim 1, wherein the operation of the photographing switch is switched in accordance with a predetermined position of the movable portion.