JP4795533B2 - Ophthalmic imaging equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ophthalmologic photographing apparatus for photographing an eye to be examined.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an ophthalmologic photographing apparatus in which a relay lens unit is attached to a fundus camera and a TV camera is attached to the relay lens unit and the fundus is photographed with the TV camera is known.
[0003]
Such an ophthalmologic photographing apparatus sets a color photographing mode, a visible fluorescent photographing mode, an infrared fluorescent photographing mode and the like by a photographing mode setting switch of the fundus camera, and a gain which is a parameter of the TV camera in accordance with the set photographing mode. The fundus is photographed by manually setting the gamma or color temperature.
[0004]
[Problems to be solved by the invention]
As described above, in the conventional ophthalmologic photographing apparatus, since the parameters of the TV camera are manually set in accordance with the photographing mode of the fundus camera, the parameters must be reset every time the photographing mode is changed. There was a problem of being troublesome.
[0005]
The present invention has been made in view of the above-described problems, and an object thereof is to provide an ophthalmologic photographing apparatus capable of automatically setting parameters.
[0006]
[Means for Solving the Problems]
  In order to achieve the above object, the invention of claim 1Ophthalmic photography including an ophthalmologic apparatus main body having an observation optical system for observing an eye to be examined, a relay lens unit detachably attached to the ophthalmologic apparatus main body, and an imaging device detachably attached to the relay lens unit A device,
  The relay lens unit has setting signal output means for outputting a setting signal for setting parameters of the imaging device in accordance with a shooting mode set by the ophthalmologic apparatus body,
  The imaging apparatus includes a parameter setting unit that sets a parameter according to the setting signal.It is characterized by that.
[0007]
  The invention of claim 2 is an ophthalmologic apparatus main body having an observation optical system for observing an eye to be examined, and is detachably attached to the ophthalmologic apparatus main body.An ophthalmologic photographing apparatus comprising a relay lens unit and an imaging device that is detachably attached to the relay lens unit,
  The relay lens unit includes a memory that stores numerical values of parameters of the imaging device, and a control that reads numerical values of parameters corresponding to the imaging mode set by the ophthalmic apparatus main body from the memory and outputs a numerical signal indicating the numerical values Means,
  The imaging apparatus has parameter setting means for setting a numerical value of a parameter by the numerical signal.It is characterized by that.
[0008]
  The invention of claim 3 is an ophthalmologic apparatus main body having an observation optical system for observing an eye to be examined, and is detachably attached to the ophthalmologic apparatus main body.IMAGING DEVICE AND RECORDING DEVICE RECORDING IMAGE CAPTURED BY THIS IMAGING DEVICEAn ophthalmologic photographing apparatus comprising:
  The parameters of the imaging device are automatically set according to the recording mode of the recording device.It is characterized by that.
[0014]
Embodiment
Hereinafter, an embodiment of an ophthalmologic photographing apparatus according to the present invention will be described with reference to the drawings.
[First Embodiment]
The ophthalmologic photographing apparatus shown in FIG. 1 includes a fundus camera 10, a relay lens unit 70 that is detachably attached to the fundus camera 10, and a TV camera (imaging device) 80 that is detachably attached to the relay lens unit 70. And. This TV camera 80 has sensitivity in the visible and infrared regions.
[0015]
The fundus camera 10 has a main body 13 that can be moved in the front-rear and left-right directions with respect to the base 12 by operating the joystick 11. Reference numeral 15 denotes a photographing switch provided on the joystick 12.
[0016]
An operation panel 20 is provided on the upper surface of the base 16 of the main body 11 at a position adjacent to the joystick 11. The operation panel 20 has an ICG (infrared fluorescent) imaging mode (imaging conditions), FAG (visible). A shooting mode setting switch S is provided for setting modes such as a fluorescent) shooting mode (shooting conditions), a color shooting mode (shooting conditions) for shooting moving images, and a normal shooting mode for shooting with a 35 mm camera K. In addition, a switch (not shown) for each filter (green filter, red filter, blue filter, etc. in addition to an exciter filter and a barrier filter described later) is provided in the mirror body. Each mode is set automatically.
[0017]
In the main body 11, an illumination optical system 30 that illuminates the fundus of the eye E and an observation optical system 50 that observes and photographs the illuminated fundus are provided.
[0018]
The illumination optical system 30 includes a halogen lamp 31 as an observation light source, a condenser lens 32, a xenon lamp 33 as a photographing light source, a condenser lens 34, a reflection mirror 35, exciter filters 36 and 37, and an eye to be examined. A ring aperture plate 38 having a ring aperture 38a in a conjugate position with the pupil, relay lenses 39, 40, a perforated mirror 41, and an objective lens 42. The exciter filters 36 and 37 are arranged so as to be detachable from the optical path. In the visible fluorescent photographing mode, only the exciter filter 36 is inserted in the optical path, and in the infrared fluorescent photographing mode, only the exciter filter 37 is inserted in the optical path. In the photographing mode and the normal photographing mode, both exciter filters 36 and 37 are separated from the optical path.
[0019]
The illumination optical system 30 illuminates the ring aperture plate 38 through the condenser lenses 32 and 34 and the reflection mirror 35 with the halogen lamp 31 lit during fundus observation. The light beam that has passed through the ring opening 38a of the ring opening plate 38 enters the eye to be examined via the relay lenses 39, 40, the perforated mirror 41, and the objective lens 42. Since the ring aperture plate 38 and the pupil are in a conjugate position, a ring aperture image is formed on the pupil, and the fundus is illuminated by this ring aperture image. During normal fundus photography, the xenon lamp 33 is turned on to illuminate the fundus in the same manner as described above.
[0020]
The observation optical system 50 includes an objective lens 42, barrier filters 52 and 53, a focusing lens 54, and a photographing lens 55. The barrier filters 52 and 53 are arranged so as to be detachable from the optical path. In the FAG imaging mode, only the barrier filter 52 is inserted in the optical path, and in the ICG imaging mode, only the barrier filter 53 is inserted in the optical path. In this case, both barrier filters 52 and 53 are separated from the optical path.
[0021]
The observation optical system 50 includes a finder optical system 150, and the finder optical system 150 includes a quick return mirror 151, a field lens 152, a switching mirror 153, and an eyepiece lens 154. The field lens 152 and the film F of the 35 mm camera K are in the conjugate position. The switching mirror 153 jumps to the chain line position every time the shooting switch 15 is pressed in the FAG shooting mode, switches to the chain line position in the ICG shooting mode, and stops at the chain line position regardless of the operation of the shooting switch 15. Become.
[0022]
The observation optical system 50 guides the illumination light beam reflected by the fundus to the quick return mirror 151 through the objective lens 42, the aperture mirror 41, the focusing lens 54 and the photographing lens 55. When the quick return mirror 151 is at the solid line position, the reflected light beam of the fundus is reflected by the quick return mirror 151 and reaches the eyepiece lens 154 via the field lens 152 and the switching mirror 153. Thereby, the fundus can be observed through the finder optical system 150.
[0023]
When the quick return mirror 151 is flipped up to the chain line position, the reflected light beam of the fundus reaches the film F surface, and a fundus image is formed on the film F surface to photograph the fundus.
[0024]
The TV relay lens unit 70 includes a relay lens 71, an imaging lens 72, and a mirror 73.
[0025]
When the switching mirror 153 is switched to the chain line position, the reflected light beam of the fundus reaching the quick return mirror 151 reaches the image sensor 81 of the TV camera 80 via the field lens 152, the relay lens 71, the imaging lens 72, and the mirror 73. The fundus image is formed on the image sensor 81 and the fundus image is captured by the TV camera 80. The captured fundus image is recorded on the video device 90.
[0026]
FIG. 2 is a block diagram showing the configuration of the control system of the ophthalmologic photographing apparatus. In FIG. 2, 101 is a solenoid that flips up the quick return mirror 151, 102 and 103 are solenoids that insert and remove the exciter filters 37 and 38 from the optical path, and 104 and 105 are barrier filters 52 and 53 that are used as the optical path. Solenoid for insertion or removal from the optical path, 106 for switching the switching mirror 153 to the chain line position or the solid line position, 100 for the operation of the solenoids 101 to 106 based on the operation of the shooting mode setting switch S or the shooting switch 15 This is a control device that controls lighting of the lamps 31 and 33. The control device 100 is composed of a CPU and the like. The control device 100 and the solenoids 101 to 106 are provided in the main body 13 of the fundus camera 10.
[0027]
In FIG. 2, reference numeral 110 denotes a memory that stores parameters according to each shooting mode. In the memory 110, for example, gain 1 and gamma 0.45 are used as parameters for color imaging mode, gain 8 and gamma 1 are used as parameters for infrared fluorescence imaging mode, and gain 8 and gamma 0 are used as parameters for visible fluorescence imaging mode. .45 are stored for each shooting mode. These numerical values of gain and gamma can be arbitrarily set by the operation keys 111. This operation key 111 is attached to a case (not shown) of the relay lens unit 70.
[0028]
112 receives the mode signal output from the photographing mode setting switch S, reads out the gain and gamma, which are parameters corresponding to the mode, from the memory 110, and reads the read gain and gamma numerical signal (setting signal) from the output port Q1. Is a control device (control means: setting signal output means). The control device 112 and the memory 110 are provided in the relay lens unit 70. When the relay lens unit 70 is attached to the main body 13 of the fundus camera 10, the control device 112 of the relay lens unit 70 and the photographing mode setting switch of the fundus camera 10 are provided. S is electrically connected.
[0029]
Reference numeral 120 denotes gain setting means for setting the gain of the TV camera 80, 121 denotes gamma setting means for setting the gamma of the TV camera 80, and 122 denotes a control device provided in the TV camera 80. When the control device 122 receives the gain and gamma numerical signals output from the output port Q1 of the control device 112 of the relay lens unit 70, the control device 122 sets the gain setting means 120 and the gamma setting means 121 to the numerical gain and gamma values. Is set to When the TV camera 80 is attached to the relay lens unit 70, the control device 122 of the TV camera 80 and the control device 112 of the relay lens unit 70 are electrically connected. The gain setting means 120 and the gamma setting means 121 constitute a parameter setting means. Further, the gain setting means 120 and the gamma setting means 121 can set the gain and gamma by manual operation.
[0030]
Next, the operation of the ophthalmologic photographing apparatus according to the above embodiment will be described.
[0031]
First, a main switch (not shown) is turned on. Then, the halogen lamp 31 of the illumination optical system 30 is turned on to illuminate the fundus. The fundus is observed through the finder optical system 150 by the illumination of the fundus. When the color shooting mode is set by the shooting mode setting switch S, the control unit 112 of the relay lens unit 70 stores the parameters of the color shooting mode stored in the memory 110 by the color shooting mode signal output from the shooting mode setting switch S. Is read. That is, the control device 112 reads the gain 1 and gamma 0.45 from the memory 110 and outputs a numerical signal indicating the numerical value “1” and a numerical signal indicating the numerical value “0.45” from the output port Q1.
[0032]
The control device 122 of the TV camera 80 sets the gain of the gain setting means 120 to “1” and the gamma of the gamma setting means 121 to “0.45” by the numerical signal output from the output port Q1 of the control device 112. Set.
[0033]
On the other hand, the control device 100 of the fundus camera 10 controls the solenoids 102 to 105 according to the color photographing mode signal output from the photographing mode setting switch S to cause the exciter filters 37 and 38 and the barrier filters 52 and 53 to leave the optical path.
[0034]
When the photographing switch 15 is pressed, the control device 100 controls the solenoid 106 to switch the switching mirror 153 to the chain line position. By switching the switching mirror 153 to the chain line position, the reflected light beam from the fundus reaches the image sensor 81 of the TV camera 80 via the field lens 152, the relay lens 71, the imaging lens 72, and the mirror 73. An image is taken. The captured fundus image is recorded on the video device 90.
[0035]
By the way, since the gain of the TV camera 80 is set to “1” and the gamma is set to “0.45”, the fundus image is properly captured by the TV camera 80, and a clear fundus image is displayed in the video. Recording is performed on the device 90. When the photographing switch S is operated again, the switching mirror 153 is switched to the solid line position, and photographing of the fundus image by the TV camera 80 is stopped.
[0036]
When the visible fluorescent photographing mode is set by the photographing mode setting switch S, the control device 100 controls the solenoids 102 to 105 to insert the exciter filter 37 and the barrier filter 52 into the optical path.
[0037]
On the other hand, the control device 112 of the relay lens unit 70 reads out the parameter of the visible fluorescent photographing mode stored in the memory 110 by the visible fluorescent photographing mode signal output from the photographing mode setting switch S, and the gain of 8 is the parameter. A numerical signal with a gamma of 0.45 is output from the output port Q1. The control device 122 of the TV camera 80 sets the gain of the gain setting means 120 to “8” and the gamma of the gamma setting means 121 to “0.45” by the numerical signal output from the output port Q1.
[0038]
When the photographing switch 15 is pressed, the control device 100 controls the solenoid 106 to switch the switching mirror 153 to the chain line position.
[0039]
Since the exciter filter 37 is inserted in the optical path of the illumination optical system 30, the fundus is illuminated with visible light having a predetermined wavelength, and visible fluorescence is generated from the fundus by an intravenously injected fluorescent agent. On the other hand, the barrier filter 52 is inserted in the optical path of the observation optical system 50, and the switching mirror 153 is switched to the chain line position, whereby a fundus image by visible fluorescence is captured by the TV camera 80, and the captured fundus image Are recorded on the video device 90.
[0040]
At this time, since the gain of the TV camera 80 is set to “8” and the gamma is set to “0.45”, a fundus image based on visible fluorescence is appropriately captured by the imaging device 80 and a clear visible fluorescence fundus is obtained. The image is recorded on the video device 90.
[0041]
Similarly, when the infrared fluorescent photographing mode is set by the photographing mode setting switch S, the gain of the TV camera 80 is set to “8”, the gamma is set to “1”, and the exciter filter 37 and the barrier filter are set in the optical path. 54 is inserted, the switching mirror 153 is switched to the chain line position, a fundus image by infrared fluorescence is captured by the TV camera 80, and the captured fundus image is recorded on the video device 90.
[0042]
At this time, since the gain of the TV camera 80 is set to “8” and the gamma is set to “1”, a fundus image based on infrared fluorescence is appropriately captured by the TV camera 80 and a clear infrared fluorescent fundus is obtained. The image is recorded on the video device 90.
[0043]
As described above, when the shooting mode is changed by operating the shooting mode setting switch S, the parameters of the TV camera 80 are automatically set according to the shooting mode. It will be very easy to use.
[0044]
In the first embodiment, the parameters of the TV camera 80 are reset according to the shooting mode. However, the parameters may be reset according to the angle of view and the aperture of the TV camera.
[Second Embodiment]
FIG. 3 shows an ophthalmologic photographing apparatus showing the second embodiment. In FIG. 3, reference numeral 200 denotes a relay lens unit. The relay lens unit 200 includes a switching mirror 201, a relay lens 202, a mirror 203, and micro switches 204 and 205 in addition to the relay lens 71 and the imaging lens 72. A visible camera TV camera 220 is detachably attached to the first mount 211 of the relay lens unit 200, and an infrared / visible TV camera 230 is detachably attached to the second mount 212. The TV camera 230 is provided with an identifier 232, and the micro switch 205 provided in the relay lens unit 200 is turned on by the identifier 232. The TV camera 220 is not provided with an identifier. For this reason, the micro switch 204 provided in the relay lens unit 200 is off.
[0045]
FIG. 4 is a block diagram illustrating a configuration of a control system of the ophthalmologic photographing apparatus according to the second embodiment. The control device (control means: setting signal output means) 206 of the relay lens unit 200 has output ports Q1 and Q3, and the types of TV cameras 220 and 230 attached to the first and second mounts 211 and 212. Is identified by turning on / off the microswitches 204 and 205. That is, when the microswitch 205 is turned on, the control device 206 recognizes that the TV camera 230 mounted on the second mount 212 can capture images with infrared fluorescence. That is, when the microswitches 204 and 205 are on, the TV cameras mounted on the first and second mounts 211 and 212 are identified as capable of photographing with infrared fluorescence. The TV camera mounted on the two mounts 211 and 212 is for identifying that it is for visible light.
[0046]
Based on this identification, the control device 206 outputs color imaging mode parameters and visible fluorescence imaging mode parameters from the output port Q1, and outputs infrared fluorescence mode parameters from the output port Q3. If the TV cameras mounted on the first and second mounts 211 and 212 are opposite to those in FIG. 3, the control device 206 outputs the color shooting mode parameters and the visible fluorescence shooting mode parameters from the output port Q3. Infrared fluorescence mode parameters are output from the output port Q1.
[0047]
In FIG. 4, 207 is a solenoid for switching the switching mirror 201 between the solid line position and the chain line position, 221 is a gain setting means for setting the gain of the TV camera 220, 222 is a gamma setting means for setting the gamma of the TV camera 220, A control device 223 is exactly the same as the control device 122. Reference numeral 231 denotes gain setting means for setting the gain of the TV camera 230, 232 denotes gamma setting means for setting the gamma of the TV camera 230, and 233 denotes a control device that is exactly the same as the control device 122.
[0048]
Next, the operation of the ophthalmologic photographing apparatus according to the second embodiment will be described.
[0049]
When the color shooting mode is set by the shooting mode setting switch S, the control device 206 reads the gain 1 and gamma 0.45 that are parameters of the color shooting mode from the memory 110. On the other hand, when the control device 206 recognizes that the TV camera 220 attached to the first mount 211 of the relay lens unit 200 is a TV camera for visible light by turning off the micro switch 204, the reading is performed. The output parameters are output from the output port Q1. That is, a numerical signal indicating the numerical value “1” and a numerical signal indicating the numerical value “0.45” are output from the output port Q1. Then, the control device 223 of the TV camera 220 sets the gain of the gain setting means 221 to “1”, and sets the gamma of the gamma setting means 222 to “0.45”.
[0050]
Further, the control device 206 recognizes that the TV camera 220 attached to the first mount 211 of the relay lens unit 200 is a visible light TV camera, and the color photographing mode is set. Thus, the solenoid 207 is controlled to switch the switching mirror 201 to the solid line position.
[0051]
On the other hand, when the color photographing mode is set, the control device 100 of the fundus camera 10 controls the solenoids 102 to 105 to separate the exciter filters 37 and 38 and the barrier filters 52 and 53 from the optical path.
[0052]
When the photographing switch 15 is pressed, the control device 100 controls the solenoid 106 to switch the switching mirror 153 to the chain line position. By switching the switching mirror 153 to the chain line position, the reflected light beam from the fundus reaches the image pickup device 221 of the TV camera 220 via the field lens 152, the relay lens 71, the imaging lens 72 and the switching mirror 201. A fundus image is captured. The captured fundus image is recorded on the video device 90.
[0053]
At this time, since the gain of the TV camera 220 is set to “1” and the gamma is set to “0.45”, the fundus image is appropriately captured by the TV camera 220 and a clear fundus image is obtained. Recording is performed on the video device 90.
[0054]
When the infrared fluorescent photographing mode is set by the photographing mode setting switch S, the exciter filter 37 and the barrier filter 54 are inserted in the optical path, and the controller 206 of the relay lens unit 200 uses the parameters of the infrared fluorescent photographing mode from the memory 110. A certain gain 8 and gamma 1 are read out. On the other hand, the control device 206 recognizes that the TV camera 230 mounted on the second mount 212 of the relay lens unit 200 is a TV camera capable of photographing with infrared fluorescence when the micro switch 205 is turned on. The read parameter is output from the output port Q3. That is, a numerical signal indicating the numerical value “8” and a numerical signal indicating the numerical value “1” are output from the output port Q3. Then, the control device 233 of the TV camera 230 sets the gain of the gain setting unit 231 to “8” and sets the gamma of the gamma setting unit 232 to “1”.
[0055]
Further, the control device 206 recognizes that the TV camera 230 mounted on the second mount 212 of the relay lens unit 200 is a TV camera capable of shooting with infrared fluorescence, and the infrared fluorescence shooting mode is set. When set, the solenoid 207 is controlled to switch the switching mirror 201 to the chain line position.
[0056]
When the photographing switch 15 is pressed, the control device 100 controls the solenoid 106 to switch the switching mirror 153 to the chain line position. By switching the switching mirror 153 to the chain line position, infrared fluorescence from the fundus reaches the image sensor 231 of the TV camera 230 via the field lens 152, the relay lens 71, the imaging lens 72, the relay lens 202, and the mirror 203. An infrared fluorescent fundus image is captured by the TV camera 230. The captured fundus image is recorded on the video device 90.
[0057]
At this time, since the gain of the TV camera 230 is set to “8” and the gamma is set to “1”, the fundus image of the infrared fluorescent light is properly captured by the TV camera 230 and a clear infrared ray is obtained. The fluorescent fundus image is recorded on the video device 90.
[0058]
When the visible fluorescent photographing mode is set, the exciter filter 37 and the barrier filter 52 are inserted into the optical path, and the gain 8 and gamma 0.45 which are parameters of the visible fluorescent photographing mode are read from the memory 110. Then, the control device 206 recognizes that the TV camera 220 mounted on the first mount 211 of the relay lens unit 200 is a TV camera for visible light by turning off the micro switch 204, and the visible fluorescence When the photographing mode is set, the solenoid 207 is controlled to switch the switching mirror 201 to the solid line position.
[0059]
Further, the control device 206 recognizes that the TV camera 220 attached to the first mount 211 of the relay lens unit 200 is a TV camera for visible light, so that the numerical value “8” is output from the output port Q1. And a numerical signal indicating the numerical value “0.45” are output, the gain of the TV camera 220 is set to “8”, and the gamma is set to “0.45”.
[0060]
When the photographing switch 15 is pressed, the switching mirror 153 is switched to the chain line position, a fundus image by visible fluorescence is captured by the TV camera 220, and the captured fundus image is recorded on the video device 90.
[0061]
At this time, since the gain of the TV camera 220 is set to “8” and the gamma is set to “0.45”, a fundus image based on visible fluorescence is appropriately captured by the TV camera 220 and a clear visible fluorescence fundus is obtained. The image is recorded on the video device 90.
[0062]
According to the second embodiment, regardless of which of the first and second mounts 211 and 212 of the relay lens unit 200 is mounted with the TV cameras 220 and 230, the parameters are adjusted according to the mounted TV cameras 220 and 230. Since it is set automatically, it is very easy to use.
[Third Embodiment]
5 and 6 show a third embodiment. In FIGS. 5 and 6, reference numeral 250 denotes a personal computer (personal computer) in which parameters read from the memory 110 are selected by the personal computer 250. For example, when three windows are opened and a normal color fundus image is recorded in the first window, a visible fluorescent fundus image is recorded in the second window, and an infrared fluorescent fundus image is recorded in the third window. When the first window becomes active, the control device 112 reads the color shooting mode parameters from the memory 110 and sends the parameters to the control device 122 of the TV camera 80. The control device 122 sets the gain of the gain setting means 120 to “1”. And the gamma of the gamma setting means 121 is set to “0.45”.
[0063]
When the second window becomes active, the control device 112 reads the parameters of the visible fluorescent photographing mode from the memory 110, sets the gain of the TV camera 80 to “8”, and sets the gamma to “0.45” in the same manner as described above. To set. When the third window becomes active, the control device 112 reads the parameters of the infrared fluorescent photographing mode from the memory 110, sets the gain of the TV camera 80 to “8”, and sets the gamma to “1” in the same manner as described above. Let
[Fourth Embodiment]
FIG. 7 shows a fourth embodiment. The ophthalmologic photographing apparatus according to the fourth embodiment includes a fundus camera 300, a relay lens unit 370 that is detachably attached to the fundus camera 300, and a TV camera (imaging device) that is detachably attached to the relay lens unit 370. ) 380. The TV camera 380 has sensitivity in the visible and infrared regions, and the gain and gamma are set manually.
[0064]
In the fundus camera 300, the quick return mirror 151 of the first embodiment is replaced with the mirror 351, and the field lens 152, the switching mirror 153, and the eyepiece lens 154 of the first embodiment are omitted, and others are the same as those of the first embodiment. The configuration is the same as that of the optical system. The main body 13 of the fundus camera 300 is provided with a monitor M, and a fundus image captured by the TV camera 380 is displayed on the monitor M.
[0065]
In addition, the fundus camera 300 includes a control device 301 as shown in FIG. 8. The control device 301 outputs a signal G 1 when the xenon lamp 33 emits light and emits the halogen lamp 31. Outputs a signal G2.
[0066]
The relay lens unit 370 has the same configuration as the relay lens unit 70 of the first embodiment, except that the control device 112 and the memory 110 are not provided.
[0067]
The TV camera 380 includes an image sensor 381 and includes a color temperature setting unit 382 that adjusts the color temperature and a control device 381 that controls the color temperature setting unit 382 as shown in FIG. When the TV camera 380 is attached to the relay lens unit 370, the control device 301 of the fundus camera 300 and the control device 381 of the TV camera 380 are electrically connected, and signals G1 and G2 output from the control device 301 are controlled. The data is input to the device 381. The control device 381 controls the color temperature setting means 382 based on the signals G1 and G2.
[0068]
Next, the operation of the fourth embodiment will be described.
[0069]
First, a case where the fundus is imaged with a moving image will be described. In this case, the moving image mode is set by the shooting mode setting switch S. When the photographing switch 15 is operated, the control device 301 outputs the signal G2 and causes the halogen lamp 31 to emit light. The control device 381 of the TV camera 380 controls the color temperature setting means 382 based on the signal G2 to set the color temperature corresponding to the halogen lamp 31. For example, if the color temperature of the halogen lamp 31 is 3200K, the control device 381 controls the color temperature setting means 382 to set the color temperature to 3200K.
[0070]
This is to set the control device 381 in advance so that the color temperature is set to 3200K and 5600K when the signals G2 and G1 are output from the control device 301.
[0071]
By operating the photographing switch 15, the fundus illuminated by the halogen lamp 31 is imaged by the TV camera 380 and recorded by the video device 90 and a fundus image is displayed on the monitor M. Since the TV camera 380 is set to a color temperature 3200K corresponding to the halogen lamp 31, the fundus occupies a natural color.
[0072]
Next, the case of shooting in the still image mode will be described. In this case, the still image mode is set by the shooting mode setting switch S. When the photographing switch 15 is operated, the control device 301 outputs the signal G1 and causes the xenon lamp 33 to emit light. The control device 381 of the TV camera 380 controls the color temperature setting means 382 based on the signal G 1 to set the color temperature corresponding to the xenon lamp 33. For example, if the color temperature of the xenon lamp 33 is 5600K, the control device 381 controls the color temperature setting means 382 to set the color temperature to 5600K.
[0073]
By operating the photographing switch 15, the fundus illuminated by the xenon lamp 33 is imaged by the TV camera 380 and recorded by the video device 90. Since the TV camera 380 is set to the color temperature 5600K corresponding to the xenon lamp 33, the fundus oculi is photographed with natural colors.
[0074]
In this way, since the color temperature of the TV camera 380 is automatically set corresponding to the lamps 31 and 33 that emit light, there is no need to manually reset the color temperature of the TV camera 380 as in the prior art. It will be very easy to use.
[Fifth Embodiment]
FIG. 9 shows a fifth embodiment. In the ophthalmologic photographing apparatus of the fifth embodiment, lamps 31 and 33 corresponding to the color temperature set in the TV camera 480 are made to emit light. Since the configuration of the optical system of the fifth embodiment is the same as that of the fourth embodiment, the description thereof is omitted.
[0075]
The control device 481 of the TV camera 480 outputs a signal G3 corresponding to the color temperature set by the color temperature setting means 482, and the control device 401 of the fundus camera 400 causes the lamps 31 and 33 to emit light based on the signal G3. Is.
[0076]
Now, for example, when the color temperature 3200K is set by the color temperature setting means 482 of the TV camera 480, the control device 481 outputs a signal G3a corresponding to the color temperature. When the photographing switch 15 is operated, the control device 401 of the fundus camera 400 causes the halogen lamp 31 corresponding to the signal G3a to emit light to photograph the fundus.
[0077]
Further, when the color temperature 5600K is set by the color temperature setting means 482 of the TV camera 480, the control device 481 outputs a signal G3b corresponding to the color temperature. When the photographing switch 15 is operated, the control device 401 of the fundus camera 400 shoots the fundus by emitting the xenon lamp 33 corresponding to the signal G3b.
[0078]
If there is no lamp corresponding to the color temperature set by the color temperature setting means 482 of the TV camera 480, the control device 401 turns on the warning lamp 402 and displays a warning.
[0079]
In this way, since the lamps 31 and 33 corresponding to the color temperature set by the color temperature setting means 482 of the TV camera 480 are emitted, there is no need to manually reset as in the conventional case, and it is very easy to use. It will be a thing.
[Sixth Embodiment]
FIG. 10 shows a sixth embodiment. The ophthalmologic photographing apparatus of the sixth embodiment is obtained by adding the color temperature automatic setting function of the fourth embodiment to the ophthalmic photographing apparatus 10 of the first embodiment, and the operation thereof is the same as that of the first and fourth embodiments. Since it is the same, the description is omitted. The configuration of the optical system of the sixth embodiment is the same as that of the first embodiment.
[0080]
【The invention's effect】
According to the present invention, parameters are automatically set, so that it is very easy to use.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a configuration of an ophthalmologic photographing apparatus according to the present invention.
2 is a block diagram showing a configuration of a control system of the ophthalmologic photographing apparatus in FIG. 1. FIG.
FIG. 3 is an explanatory diagram showing a configuration of an ophthalmologic photographing apparatus according to a second embodiment.
4 is a block diagram showing a configuration of a control system of the ophthalmologic photographing apparatus in FIG. 4;
FIG. 5 is an explanatory diagram showing a configuration of an ophthalmologic photographing apparatus according to a third embodiment.
6 is a block diagram showing a configuration of a control system of the ophthalmologic photographing apparatus in FIG. 5. FIG.
FIG. 7 is an explanatory diagram showing a configuration of an optical system of an ophthalmologic photographing apparatus according to a fourth embodiment.
8 is a block diagram illustrating a configuration of a control system of the ophthalmologic photographing apparatus in FIG.
FIG. 9 is a block diagram illustrating a configuration of a control system of an ophthalmologic photographing apparatus according to a fifth embodiment.
FIG. 10 is an explanatory diagram showing a configuration of a control system of an ophthalmologic photographing apparatus according to a sixth embodiment.
[Explanation of symbols]
10 Fundus camera
50 Observation optical system
70 Relay lens unit
80 TV camera
110 memory
112 Control device (control means)
120 Gain setting means
121 Gamma setting means

Claims (3)

Ophthalmic photography including an ophthalmologic apparatus main body having an observation optical system for observing an eye to be examined, a relay lens unit detachably attached to the ophthalmologic apparatus main body, and an imaging device detachably attached to the relay lens unit A device,
The relay lens unit has setting signal output means for outputting a setting signal for setting parameters of the imaging device in accordance with a shooting mode set by the ophthalmologic apparatus body,
The ophthalmic imaging apparatus, wherein the imaging apparatus includes a parameter setting unit that sets a parameter according to the setting signal. Ophthalmic photography including an ophthalmologic apparatus main body having an observation optical system for observing an eye to be examined, a relay lens unit detachably attached to the ophthalmologic apparatus main body, and an imaging device detachably attached to the relay lens unit A device,
The relay lens unit includes a memory that stores numerical values of parameters of the imaging device, and a control that reads numerical values of parameters corresponding to the imaging mode set by the ophthalmic apparatus main body from the memory and outputs a numerical signal indicating the numerical values Means,
The ophthalmic imaging apparatus, wherein the imaging apparatus includes a parameter setting unit that sets a numerical value of a parameter by the numerical signal. An ophthalmologic photographing apparatus including an ophthalmologic apparatus main body having an observation optical system for observing an eye to be examined, an image pickup apparatus that is detachably attached to the ophthalmologic apparatus main body, and a recording apparatus that records an image picked up by the image pickup apparatus. Because
An ophthalmic imaging apparatus, wherein the parameters of the imaging apparatus are automatically set according to a recording mode of the recording apparatus.

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