JPH04124109U - Ophthalmology imaging device - Google Patents

Abstract

(57) [Summary] [Purpose] To imprint as much ID number data as possible in addition to time data during fluorescence photography. [Structure] When the photographing mode detection means (27) detects the fluorescence photographing mode, the data display control section (36) activates the timer.
(32) and the data of each digit of the ID number stored in the ID storage unit (33), the number of digits of the timer value is subtracted from the number of digits that can be displayed on the internal display (22). The data for the remaining number of digits is synthesized and the data display driver (3
9), the image is imprinted onto the film by displaying it on the internal display (31).

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an ophthalmological imaging device used for ophthalmological imaging, such as a fundus camera, and in particular, , concerning the data imprinting technology.

0002

[Conventional technology]

In conventional ophthalmological imaging equipment, data printing is used to record predetermined data along with the observation image. The technique described in Japanese Patent Application Laid-open No. 10738/1983 is known as a technique for embedding. Ru.

0003 This technology allows input using the 10 keys on the input device equipped with the fundus camera. data or the counter value or timer value indicating the number of shots taken when the data mode is turned off. The switch selectively selects one of the options and imprints one of them on the film.

0004 By the way, a fluorescent agent is injected into the subject using a fundus camera, and the state of the blood vessels can be seen in detail. In fluorescence imaging, which is performed to take pictures after It is necessary to record the elapsed time on the film until the photograph is taken.

[0005] Therefore, in such a fundus camera, for example, for one subject, When performing color photography or non-red photography, and then fluorescence photography, first enter the ID number. - is input using the 10 keys to perform color photography or non-red photography, and then data After selecting timer mode with the mode selector switch, perform fluorescence photography. Ta.

[0006] As a result of the above shooting, there is no ID number for films such as color shooting and non-red shooting. Only the image data is recorded as data, and a timer is used on the film for fluorescence photography. Only the elapsed time will be imprinted.

[0007]

[Problem that the idea aims to solve]

By the way, with a fundus camera, the entire film of one subject is It is desirable to imprint the ID number on the card.

[0008] However, if you increase the number of digits in the data display for imprint data, only the data display However, the entire optical system for data imprinting must be made larger, and the The sound is loud. Therefore, the number of digits on the data display for imprint data is limited in terms of space. It is limited and cannot be increased too much.

[0009] Therefore, according to the above-mentioned conventional technology, an ID number is not assigned to the fluorescent photographic film. It cannot be imprinted.

0010 For this reason, there is a problem that it is inconvenient to distinguish, organize, and search fluorescent photographic films. was occurring.

[0011] Therefore, the present invention is easy to operate even during fluorescence photography, and can be used to capture data other than time data. Our aim is to provide an ophthalmological imaging device that can capture as much data as possible. do.

0012

[Means to solve the problem]

In order to achieve the above object, the present invention provides a plurality of imaging modes including a fluorescence imaging mode. The ophthalmological imaging device has an imaging mode that detects whether the current imaging mode is the fluorescence imaging mode. - a code detection section, an input means for accepting input of arbitrary data, and a timer for measuring time; a data display means capable of displaying multi-digit data; and a data display means capable of displaying multi-digit data; an optical means for projecting a display image of the indicated data onto an image plane; and the photographing mode detection section. When the camera detects fluorescence photography mode as the current photography mode, the timer's measured value is time data indicating time and the data table of the data accepted by the input means; The number of digits remaining after subtracting the number of digits of the time data from the number of digits that the display means can display and display control means for displaying the data on the data display means. .

[0013]

[Effect]

According to the ophthalmological imaging device according to the present invention, the imaging mode detection section detects that the current imaging mode is fluorescent. Detects whether or not it is in shooting mode. Then, when fluorescence photography mode is detected, the display The control means receives time data indicating the time measured by the timer and the input means receives. The time data is determined by the number of digits that the data display means can display among the attached data. and the data corresponding to the number of digits remaining after subtracting the number of digits are displayed on the data display means. . The data displayed on the data display means is projected onto the image plane via the optical means. It is imprinted on the photo.

[0014] In other words, a timer is automatically displayed and imprinted during fluorescent photography. Therefore, it is possible to eliminate the trouble of instructing the timer to imprint when taking fluorescent photographs.

[0015] Also, during fluorescence photography, in addition to the time data, the data received by the input means is You can take as many pictures as possible.

[0016]

【Example】

Hereinafter, one embodiment of the ophthalmological imaging device according to the present invention will be described, taking the application to a fundus camera as an example. I will explain.

[0017] First, FIG. 1 shows the configuration of an optical system of a fundus camera according to this embodiment.

[0018] As shown in the figure, the illumination system for observing the fundus F of the eye to be examined includes an objective lens 1, a hole Clear mirror 2, relay lens 10, ring diaphragm 11, fixed mirror 12, condenser lens It consists of a lens 13, a photography illumination light source 14, a condenser lens 15, and an observation illumination light source 16. will be accomplished.

[0019] In addition, filters 18 for performing fluorescence photography or monochromatic light photography are inserted and separated in the optical path. It is removable. Its position is detected by the shooting mode detection means 27. , the shooting mode is determined. Filter position detection is specifically done using photointerference. This can be realized using a switch, a Hall element, a limiter switch, etc.

[0020] Now, when the observation illumination light source 16 is turned on, the light passes through the ring diaphragm 11 and then enters the hole. It is reflected by the mirror 2, passes through the objective lens 1, and is reflected near the cornea of the eye E. A ring-shaped secondary light source is formed to illuminate the fundus F of the eye to be examined.

[0021] When the photography illumination light source 14 emits light, the fundus F of the subject's eye is similarly exposed to strong light for a short period of time. It will be illuminated.

[0022] The observation and photography system for observing and photographing the fundus F of the eye to be examined includes an objective lens 1 and a focusing lens. 3, and a filter 17 for performing fluorescence photography can be inserted and removed from the optical path. It is provided.

[0023] The illuminated image of the fundus F passes through the hole of the perforated mirror 2, and passes through the objective lens 1 and the focusing lens. An image is formed by a focusing lens 3.

[0024] For observation, when the movable mirror 4 is in the position indicated by the solid line, the fixed mirror 7, eyepiece reticle 8, and eyepiece lens 9 are used for observation. The fundus image can be observed using the eyepiece tube.

[0025] For photographing, after moving the movable mirror 4 to the position indicated by the dotted line, the photographing illumination light source 14 is turned on. This is done according to the following.

[0026] The photographing optical path is divided into two optical paths by a movable mirror 5, and the photographing optical path is divided into two optical paths by a movable mirror 5. 1, a fundus image is recorded.

[0027] The data imprinting device transfers the display image of the internal display 22 to a fixed mirror 23 and a relay lens. 24, the fixed mirror 25 allows the finder reticle 8 or the film 6 to be It is configured to form an image on the lumen 21.

[0028] Next, in Figures 2 and 3, data of the control system of the fundus camera according to this embodiment is imprinted. The configuration of the relevant parts is shown.

[0029] Figure 2 shows the configuration of the parts related to data imprinting in the input section of the control system of the fundus camera. This is what is shown.

[0030] As shown in the figure, this input section has an ID input section consisting of various keys for inputting ID values, etc. section 28, count/ID/off switch 30 for specifying the type of data to be imprinted, and a tie Timer reset switch 29 to reset the timer, and to display the imprint data. A section display 31 is provided. In addition, as another switch not shown in the figure, there is also a timer start switch. - a release switch 37 and a release switch 38.

[0031] Figure 3 shows the configuration of the parts related to data imprinting in the control section of the control system of the fundus camera. This is what is shown.

[0032] As shown in the figure, this control section includes the photographing mode detecting means 27, the timer star Toswitch 37, timer reset switch 29, release switch 38, count /ID/off switch 30 and ID input section 28, and processes them. and controls the display on the external display 31 and the internal display 22.

[0033] As shown in the figure, the configuration is as follows: An ID storage unit 33 that stores D, a count storage unit 34 that stores the number of shots, and data. A data display drive unit 39 that drives the storage unit 35, the external display 31, and the internal display 22. , and processes the input using the timer 32, ID storage section 33, and count storage section 34. The display on the external display 31 and the internal display 22 is controlled via the data display drive unit 39. The data display control section 36 controls the data display control section 36.

[0034] The data imprinting operation of the fundus camera according to this embodiment will be described below.

[0035] Let's take an example of taking a color photo of one subject and then taking a fluorescent photo. Ru.

[0036] First, the filters 17 and 18 are set, and the color shooting mode is selected.

[0037] At this time, in FIG. 1, the photographing mode detection means 26 detects the position of the filters. It detects this and sends a signal indicating that it is the color photographing mode to the data display control section 36.

[0038] In this example, data imprinting of a count value indicating the number of shots or an ID number is performed. Since it is selectable, the count/ID/off selector switch 30 Select D.

[0039] This makes it possible to input an ID number into the ID input section 28, for example, An ID number such as 16081513 can be entered using the 10 key in section 28.

[0040] The input numbers are sent to I by the data display control unit 36 via the data storage unit 35. It is stored in the D storage section 33.

[0041] Next, the data display control section 36 receives the input from the photographing mode detection means 27 in color. The input from the shooting mode, count/ID/off selector switch 30 is ID. Therefore, the data in the ID storage unit 33 is read into the data storage unit 35 as imprint data. The read data is sent to the internal display 22 and the data display driver 39. It is displayed on the external display 31.

[0042] Note that while entering the ID number, the display on the internal display 22 and external display 31 is This is a method in which the digits are incremented one after another each time a character is input, and the display shown in Figure 4 appears during input. becomes. When the input is completed, the display shown in FIG. 5 appears.

[0043] After completing the above operations, perform color photography.

[0044] Next, we will perform fluorescence photography, but first, filters 17 and 18 are used for fluorescence photography. Set for shadow.

[0045] This allows the fluorescent photography mode to be detected from the photography mode detection means 27, which is its position detector. A signal is sent to the data display control section 36 indicating that the display is in the read state.

[0046] In response to this, the data display control section 36 controls the timer 32 and the ID storage section 33. The imprint data is synthesized from the data and stored in the data storage section 34.

[0047] This synthesis is performed as follows.

[0048] First, check the upper digits of the total digits of the imprint data, that is, the total digits displayed on the internal display 22. Then, each digit is sequentially assigned for the timer.

[0049] Fluorescence photography does not last more than 2.7 hours, so here we will use the imprint data. Allocate 4 digits for the timer. And up to 999.9 seconds it is 1/10 Displays in seconds, and seconds beyond that.

[0050] Next, assign the symbol - to the next lowest digit after the lowest digit assigned for the timer. Ru. The symbol - is a mark to distinguish between the timer and the ID number.

[0051] Then, each digit below the symbol - is assigned for ID.

[0052] In this case, the number of digits lower than the symbol - is less than the number of digits in the ID number, so the ID number It is not possible to use all digits as imprint data.

[0053] Therefore, in this embodiment, from the lower digits of the ID number, Import the next digit as the lower digit of the imprint data.

[0054] Here, the upper digits of the ID number usually have relatively common numbers such as hospital number and gender. Therefore, even if only the lower digits remain, there is enough information that can be used to distinguish, organize, and search. becomes.

[0055] Of course, the number of digits lower than the symbol of the imprint data is greater than the number of digits of the ID number. If it is large, there is no loss of information.

[0056] After the above operations, inject the fluorescent agent into the subject and turn on the timer start switch 37. Press to start the timer 32 and perform fluorescence photography.

[0057] When the timer 32 starts, the data display control section displays the data based on the value of the timer 32. The timer value in the imprint data synthesized in the data storage section 34 is rewritten every moment, The elapsed time and the lower digits of the ID number are displayed on each display 31 and 22 as shown in Figures 6 and 7. Show.

[0058] As a result, the elapsed time at the time of shooting and as many lower digits of the ID number as possible are displayed. imprinted on the film.

[0059] As described above, according to this embodiment, the timing is automatically linked to the selection of the shooting mode. Since the timer value can be displayed and imprinted on the image, the timer value can be imprinted during fluorescence photography. This eliminates the hassle of having to give instructions on what to do.

[0060] In addition, in addition to the timer value, other data such as ID numbers can be recorded on the fluorescent film. It is also possible to imprint films, making it easier to distinguish, organize, and search for films.

[0061] In this example, the case where a film camera is used will be explained. However, the same applies when shooting using other cameras such as video cameras. can.

[0062] In addition, in this embodiment, the shooting mode was detected from the position of the filters. This may be detected by other means.

[0063]

[Effect of the idea]

As described above, according to this embodiment, even during fluorescence photography, time data can be easily obtained through simple operations. We provide ophthalmology imaging equipment that can capture as much data as possible in addition to data. can do.

[Brief explanation of drawings]

FIG. 1 is an optical path diagram showing the configuration of an optical system of a fundus camera according to an embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of a portion related to data imprinting of an input section of a control system of a fundus camera according to an embodiment of the present invention.

FIG. 3 is a block diagram showing the configuration of a portion of a control unit related to data imprinting of a control system of a fundus camera according to an embodiment of the present invention;

FIG. 4 is an explanatory diagram showing a first display example of the display section of the fundus camera according to an embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a second display example of the display section of the fundus camera according to an embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a third display example of the display section of the fundus camera according to an embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a fourth display example of the display section of the fundus camera according to an embodiment of the present invention.

[Explanation of symbols]

22 Internal display 23 Fixed mirror 24 Relay lens 25 Fixed mirror 27 Shooting mode detection means 17 Filters 18 Filters 27 Shooting mode detection means 31 External display 32 Timer 33 ID storage section 34 Count storage section 35 Data storage section 36 Data display control section

Claims (1)

[Scope of utility model registration request] 1. An ophthalmological imaging device having a plurality of imaging modes including a fluorescence imaging mode, comprising an imaging mode detection section for detecting whether or not the current imaging mode is the fluorescence imaging mode. , an input means that accepts input of arbitrary data, a timer that measures time, and a data display means that can display multi-digit data;
an optical means for projecting a display image of the data displayed on the data display means onto an image plane; time data indicating the measured time, and data for the remainder of the number of digits obtained by subtracting the number of digits of the time data from the number of digits that can be displayed by the data display means among the data accepted by the input means, An ophthalmologic photographing apparatus comprising: a data imprinting section having a display control means for displaying information on the data display means.