JPH10179523A - Digital camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect a digital camera to an opthalmologic instrument, and display an erect image on a built-in monitor by switching whether or not reversal processing is performed on the basis of the existence of connection of the opthalmologic instrument. SOLUTION: When an image pickup switch in a fundus camera FC is pushed, the illuminating light from a fundus illuminating optical system is reflected by a perorated mirror 3, and is irradiated to the fundus Er by a lens 1. The reflected light of the fundus Er is formed as an inverted image in a position 2, and is formed as an erect image on an image pickup element 5 of a digital camera DC through a central opening part of the perforated mirror 3 and a lens 4. Before this photographing, a detecting part 6 detects that the fundus camera FC is connected to the digital camera DC, and sends a signal to an image reversing part 7. Then, the image reversing part 7 is switched so that image data on the image pickup element 5 is displayed on a monitor 8 as an erect image. Therefore, a pickup image of an opthalmologic instrument can be displayed on the monitor 8 as an erect image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital still camera for processing an electronic image photographed using an image pickup device such as a CCD.

[0002]

2. Description of the Related Art In general, digital cameras widely used in the market are used for photographing landscapes, people, and the like, similarly to conventional 35 mm cameras for photographing on a silver halide film.

[0003] Recently, models and the like equipped with a liquid crystal display on the back surface of the main body have been sold, and it is possible to check a photographed image on the spot.

[0004]

In a conventional digital camera, as shown in FIG. 2, an image of a subject 9 passes through a lens system 10 in a lens unit LS and then is inverted on an image sensor 11 in a digital camera DC. The image is formed as an image, converted to an erect image on the monitor 12 in the digital camera DC, and displayed. FIG. 3 shows a case where this digital camera is connected to, for example, a fundus camera and used for recording a fundus image. That is, the fundus Er of the eye E
Is formed as an inverted image at the position 14 through the lens 13 in the retinal camera FC, passes through the hole of the perforated mirror 15, passes through the lens system 16, and further passes through the lens system 16 to the image pickup device in the digital camera DC. 17 is formed as an erect image. This image is shown in FIG.
As described above, the image is inverted and displayed on the monitor 18 in the digital camera DC as an inverted image.

Since up and down correction can be easily performed on 35 mm film, instant film, and the like which are usually used as a recording means of a fundus camera, a notch as shown in FIG. However, in the case of an image that is displayed inverted on the monitor inside the digital camera, it was necessary to check the inverted display while being aware that the photographer is upside down . In particular, in the case of a fundus image, it is difficult to discriminate the upper and lower parts by using only the image because of its characteristics.

[0006]

According to the present invention, an image pickup means for converting a picked-up light image into an electric signal, an image inversion processing means for inverting image data obtained by the image pickup means, and an image inversion means In a digital camera having image output means for outputting image data processed by the processing means, the ophthalmologic equipment is provided by providing connection state switching means for switching whether or not to execute the inversion processing based on the presence or absence of ophthalmic equipment connection. When a digital camera is connected to the camera, an erect image can be displayed on a built-in monitor.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiment.

FIG. 1 is a diagram showing the configuration of an apparatus according to an embodiment of the present invention. In FIG. 1, a lens 1 disposed in a fundus camera FC and a hole having a central opening are provided on an optical path in front of an eye E to be examined. Mirror 3, lens system 4, digital camera DC
The image pickup devices 5 arranged inside are sequentially arranged. Further, inside the digital camera DC, a detection unit 6 that detects whether or not the digital camera DC is connected to the fundus camera FC, an image inversion unit 7 that stores a digital image and performs an inversion process based on a detection result of the detection unit 6, A monitor 8 for displaying an image is connected.

When a photographing switch (not shown) in the fundus camera FC is depressed, illumination light from a fundus illumination optical system (not shown) is reflected by the perforated mirror 3, and the fundus E is reflected by the lens 1.
illuminate r. The reflected light from the fundus Er is imaged as an inverted image at the position 2, passes through the central opening of the perforated mirror 3, and is imaged as an erect image at the image sensor 5 by the lens system 4.

On the other hand, the detection unit 6 detects that the fundus camera FC has been connected to the digital camera DC prior to photographing, and sends the detection result to the image inversion unit 7. Normally, this detection is performed when the power is turned on or when the fundus camera FC and the digital camera DC
Is done when is connected.

A specific detection method is as shown in FIG.
This is performed by a contact 20 provided on a mount 19 for connecting the fundus camera FC and the digital camera DC. The detection unit 6 reports to the image inversion unit 7 that the connection has been made by the energization of the contact 20 accompanying the connection.

Here, the case where the connection is detected based on whether or not power is supplied has been described as an example. However, the present invention is not limited to this. Data communication is performed using the contact 20 and the presence or absence of connection is confirmed by a command. It may be configured as follows.

A connection state switching unit may be used in place of the detection unit 6 so that the photographer can switch whether or not the fundus camera FC is connected to the digital camera DC by a switch.

When the connection of the retinal camera FC is confirmed, the image inverting section 7 reads out the image data from the image pickup device 5 in such a procedure that the image data on the image pickup device 5 is displayed as an erect image on the monitor 8. Output to

If the fundus camera FC is not connected to the digital camera DC and the detection unit 6 informs the image inversion unit 7 that it is not connected, the captured image is not a fundus image. The image data on the image sensor 5 is subjected to image inversion processing by the image inversion unit 7 and then displayed on the monitor 8.

The reversal process is performed by converting the image shown on the left side of FIG. 6 into the image shown on the right side, that is, by changing the arrangement order of the constituted pixels.

In addition to the above-described inversion method, when there are a plurality of mounts for connecting the digital camera DC to the fundus camera FC, and when it is necessary to perform mirror inversion in the fundus camera FC depending on the mount position, the inversion processing is performed. You may comprise so that only upside-down may be inverted (left and right are the same).

In the above description, the case where a digital camera is connected to the fundus camera has been described as an example. However, the present invention is not limited to this case. The effect of is obtained.

[0019]

As described above, the provision of the connection state switching means for switching whether or not to execute the inversion processing based on the presence or absence of the connection of the ophthalmic apparatus enables the photographing of a normal image such as a landscape. When a simple digital camera is used for inputting an ophthalmologic image, it can be observed as an erect image even on a monitor built in the digital camera.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an apparatus according to the present invention.

FIG. 2 is a configuration diagram of a conventional digital camera.

FIG. 3 is a diagram in which a conventional digital camera is connected to a fundus camera.

FIG. 4 is a diagram showing a conventional fundus photograph.

FIG. 5 is a diagram illustrating an example of a detection unit.

FIG. 6 is a diagram showing an inversion process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lens 3 Perforated mirror 4 Lens system 5 Image sensor 6 Detector 7 Image inverting unit 8 Monitor

Claims (1)

[Claims] An image capturing means for converting a captured optical image into an electric signal, an image inverting means for inverting image data obtained by the image capturing means, and an image inverting means for processing the image data processed by the image inverting means. A digital camera having an image output unit for outputting, comprising a connection state switching unit for switching whether or not to execute the inversion processing based on whether or not an ophthalmic device is connected.