KR200209466Y1 - Eye Iris Camera - Google Patents

Abstract

The present invention relates to an eye iris photographing apparatus, and in particular, when photographing the iris with a computer, the iris is divided into two parts, and then the two images of the iris are continuously photographed twice while illuminating the upper and lower sides of the iris separately, and then the two images are photographed with a computer. By selectively controlling the halogen lamp that supplies light to the optical fiber cable by synthesizing it as a relay switch, the reliability of iris photography that is taken instantaneously can be further improved, and noise is not generated during shooting. It is equipped with a separate lens frame detachable on the front of the iris camera in case of malfunction, and a pair of lamps are installed on the left and right sides of the lens frame so as to be alternately lit in conjunction with the switching operation of the relay switch. Iris shooting to ensure normal iris shooting even if the lamp is defective It is about the zero device.

Description

Eye Iris Camera

The present invention is to illuminate the iris of the eyeball to be expressed as an image on a computer monitor, and then to illuminate the iris two times in succession, and then to take two computer shots. The present invention relates to an eye iris photographing device that enables the user to more clearly read the iris by displaying an image. Particularly, the present invention improves the utility model application filed 97-29555, which the applicant has elected, so that the iris can not be reflected. It is characterized by what is made possible.

In general, by examining changes in the shape and color of the iris of the eye to diagnose the health status of the body, the state of disease retention and disease progression, for this purpose, the eye tester using a computer has recently been used.

However, when the iris is illuminated to examine the iris using a computer, the illumination light causes the reflected light on the iris, so that the iris cannot be accurately photographed. This is because the eyeball is spherical and the fiber optic cable must be directly The reflected light is formed in the part reflected by the light, and the surrounding area where the reflected light is generated is affected by the reflected light, and when the computer is taken, the reflected light part as well as the entire part of the surrounding part cannot be accurately photographed by the reflected light. Has been pointed out as a problem.

In order to overcome this problem, I have filed a Utility Model Registration Application No. 97-29555.

The line technology is provided with an optical output device for transmitting the light irradiated from the halogen lamp to any one of the optical fiber cable selected according to the operation of the solenoid of the pair of optical fiber cable, and a pair of optical fiber cable drawn from the optical output device It is connected to a light source connector selectively connected to three pairs of optical fiber cables, and one of the three pairs of optical fiber cables drawn from the light source connector, and photographed twice while illuminating the left and right sides of the iris individually. It consists of an iris camera, which transmits the captured iris image to a computer monitor, and synthesizes two shots so that the iris can be analyzed by taking only the part without reflected light.

However, in the conventional iris photographing apparatus, a solenoid for selectively blocking a light source irradiated from a halogen lamp and supplied to an optical fiber cable is used to photograph the iris partially, and the solenoid is operated every time the iris is photographed. While generating a metallic noise, the iris shooting subjects not only feel insecure, but also have a problem in that the manufacturing cost increases as the expensive solenoid is used.

In addition, when the halogen lamp, which is a light source, fails, it cannot be replaced quickly, and thus there is a problem in that the iris cannot be photographed.

The present invention was conceived in view of the above-mentioned conventional problems, and when shooting the iris with a computer, the iris is divided into two parts, and then two times of shooting while lighting the upper and lower sides of the iris separately, and then the second shot. By synthesizing it with a computer, by selectively turning on and controlling the halogen lamp that supplies light to the optical fiber cable as a relay switch, the reliability of iris photography that is taken instantaneously can be further improved, and the iris that prevents noise during shooting An object of the present invention is to provide a photographing apparatus.

In addition, in case the halogen lamp is inoperable, a separate lens frame is provided on the front of the iris camera, and a pair of lamps are installed on the left and right sides of the lens frame to be interlocked with the switching operation of the relay switch. It is an object of the present invention to provide an iris photographing apparatus capable of performing iris photographing normally even when a halogen lamp is defective.

The present invention for achieving the above object is a switching unit having a light source supply unit consisting of at least one halogen lamp, a relay switch for selectively switching the driving power of the halogen lamp under the control of the control device, and the halogen lamp An optical output device installed close to the front of the light output device, the optical output device including a receiver to which a pair of optical fiber cables are fixed; A case into which a pair of optical fiber cables drawn out from the optical output device are introduced, a control port for moving the incoming optical fiber cable from side to side, and a pair of optical fiber cables selectively connected to the two optical fiber cables to receive a light source A light source connector provided with; Any two pairs of optical fiber cables of the multiple pairs of optical fiber cables drawn out from the light source connector are connected, and when the two pairs of cables alternately illuminate the upper and lower sides of the eye, the upper and lower sides of the iris are alternately photographed twice An iris camera that transmits the iris image to a computer monitor; and photographing twice while illuminating the upper iris and hinge portion of the eyeball and the lower iris and white portion alternately, and then synthesizing the image of the iris shot twice. Discard the part and take only the part without the reflected light, and then synthesize it and display it on the computer monitor.

And, in preparation for the inoperable state of the halogen lamp, the engaging portion extending from the lower end of the tip of the iris camera and the coupling groove is formed on the upper end; A lens assembly is detachably screwed to the female thread of the lens fitting hole so that the magnifying lens can be replaced, and has a lens fixing ring for fixing the magnifying lens inserted into the lens fitting hole. The framework; A hinge body rotatably hinged to an upper center of the lens frame body and elastically supported by a spring, a screw capable of protruding and rotating a part of the upper surface of the hinge body, and rotating the screw in engagement with the screw Eyelid expansion mechanism consisting of a lever lever to move forward and backward toward the hinge body according to; An operating plate, each of which has a pair of lamps coupled thereto, is rotatably hinged to both sides of the lens frame to illuminate the eye's iris, and each of the lamps is connected to an output terminal of the relay switch through a separate switch to operate the switching of the relay switch. The lighting unit is alternately lit according to the lighting unit configured to alternately illuminate the upper and lower sides of the iris.

1 is an overall configuration diagram of the iris photographing apparatus for explaining the present invention.

Figure 2 is a plan view showing an optical output device applied to the present invention.

3 is a view showing in detail the switching unit applied to the present invention.

Figure 4 is a cross-sectional view showing a light source connector of the present invention.

5 is a front view showing the lens frame and the lighting unit of the present invention.

6 is a side view showing a state in which the lens frame is coupled to the iris camera.

7 is a view tightening the angle adjustment state of the operating plate coupled to the lens frame body.

8 (a) to (c) is a photographing state diagram and synthetic state diagram of the eye photographed by the present invention.

* Explanation of symbols for main parts of the drawings

1: iris camera 2: optical output device

3: light source connector 5: lens frame

6: eyelid expansion mechanism 7: lighting unit

23a, 23b: halogen lamp 26: switching unit

RL1, RL2: Relay switch SW: Switch

71a to 71d: lamp 72: operating plate

Hereinafter, a preferred embodiment of the present invention with reference to the accompanying drawings 1 to 9 as follows.

The present invention is composed of an iris photographing device 1, an optical output device 2, a light source connector 3, a face support 4, and a lens frame body 5 in general.

The iris camera 1 is installed on a separate table with wheels so as to move freely on a separate table, and a pair of optical fiber cables 12a respectively disposed on both sides of the shooting aperture 11 where the shooting hole of the zoom camera is formed. , 12b) (12c, 12d) is configured to alternately illuminate the upper iris and white part and the lower iris and white part when the center of the eye is divided into two horizontally.

In addition, the movable tool 14 is inserted into the rail groove 13a of the guide tool 13 fixed to the inner upper portion of the photographing viewing tool 11 so as to allow sliding movement, and an upper end of the movable tool 14 is provided. The eyebrow expansion tool 15 is rotatably attached to the pin shaft 16. The handle 15a of the eyebrow extension 15 is protruded outward through the long hole 11a formed at the upper portion of the photographing aperture 11, and the operation unit 15b is the photographing aperture 11. The inner and outer sides of the inner and outer working at the same time moving up and down is configured to expand the eyeball.

The optical output device 2 is for supplying a light source to a pair of optical fiber cables 12a, 12b, 12c, and 12d respectively disposed on both sides of the imaging aperture 11 of the iris camera 1. It consists of an adapter 21 which receives power and converts it into DC power to supply driving power for each part, a control device 22, halogen lamps 23a and 23b, a dimmer 24, a fan 25 and the like. Relay switches RL1 and RL2 for controlling the lighting of the halogen lamps 23a and 23b are installed between the halogen lamps 23a and 23b and the adapter 21 to control the controller 22. It is configured to switch by a control signal.

That is, the relay switches RL1 and RL2 alternately turn on by the control signal of the control device 22, and supply the output voltage of the adapter 21 to the halogen lamps 23a and 23b, thereby providing a halogen lamp ( 23a) and 23b are alternately lit.

On the front of the halogen lamps 23a and 23b, two light receivers 27 having a pair of optical fiber cables 27a to 27d are provided therein, and halogen lamps are interposed between the light receivers 27. A shielding plate 28 is provided to prevent the light of 23a and 23b from being received by different light receivers 27.

The two pairs of optical fiber cables 27a to 27d are covered by one covering and connected to the control port 31 of the light source connector 3 as one main line 29.

The control port 31 of the light source connector 3 is connected to a main line 29 in which two pairs of optical fiber cables 27a to 27d are collected, and a handle (not shown) of the control port 31 is a case. It is comprised so that it can move to three steps within a predetermined range in the state which protruded in (32). The flow field hole 34 is also formed at the inlet side of the main ship so that the main ship 29 can also move in accordance with the movement control of the adjusting device 31.

In the case 32 of the light source connector 3, two pairs of cable main lines 35 and 36 in which two optical fiber cables are respectively coated on one covering and a cable main line coated with two pairs of optical fiber cables ( 12 is provided with a fixture 36 for fixing the main wires 12, 35 and 36, respectively, and is selectively connected to the inlet-side cable main wire 29 connected to the control hole 31 to provide an optical output device ( It is configured to receive a light source output from 2), detailed operation is the same as the conventional one will be omitted.

The face support 4 is connected to the light source connector 3 and the optical fiber cable with a function of stably supporting the face of the patient is configured to illuminate the eye of the patient.

On the other hand, the lens frame (5) is coupled to the front surface of the shooting aperture (11) and is provided with a lighting unit (7) for the inoperative state of the halogen lamp, the lens fitting hole 51 of the lens frame (5) The female screw 52 formed in the lens fixing ring 53 is screwed to facilitate the replacement of the magnifying lens 54.

In the groove 55 formed in the upper center of the lens frame 5, the eyelid expansion mechanism 6 is rotatably installed, and the hinge body 61 of the eyelid expansion mechanism 6 is hinged to the groove 5 described above. The hinge shaft 62 front side of the hinge body 61 is elastically supported by a spring 63, and the rebar lever 64 and the rebar bar penetrate forward and backward to the hinge body 61. The screw 65 which moves back and forth 64) is provided. And the contact hole 66 made of rubber | gum material is inserted in the front-end | tip part of the said recreation bar 64.

On both sides of the lens frame 5, a working plate 72 having a pair of lamps 71a, 71b, 71c, and 71d, respectively, is rotatably coupled as a hinge, and one side of the operating plate 72 has its outer periphery. A semicircular angle adjusting portion 73 having a plurality of friction protrusions 73a protrudingly formed on the surface thereof is fixed, and the friction protrusions 73a are formed on the side surface of the lens frame 5 to which the operation plate 72 is coupled. The stopper protrusion 67 which is engaged with the protrusion is formed so that when the operating plate 72 is rotated to adjust the illumination angle of the lamp, the stopper protrusion 67 and the friction protrusion 73a are engaged with each other and the adjustment angle of the operating plate 72 is adjusted. Will remain as it is.

The lamps 71a and 71b installed at the upper end of the operating plate 72 illuminate the upper side of the eyeball, and the lamps 71c and 71d installed at the lower end of the operating plate 72 illuminate the lower side of the eyeball.

At this time, one of the lamps of the upper lamp is to illuminate the iris of the eye, the remaining lamp is to illuminate the white part of the eye, the optical fiber cable (12a, 12b) installed in the shooting aperture (11) (12c, 12d) In addition to the upper and lower sides of the eye to illuminate like the lamp, any one of the optical fiber cable is to illuminate the eye iris and the remaining optical fiber cable is configured to illuminate the white part of the eye .

Referring to the operation and effects of the present invention configured as described above are as follows.

First, in order to photograph the patient's iris, the patient's face is supported by the face restraint (4) and then the photographing sight (11) is in close contact with the patient's eye.

If the entire iris is displayed even if the patient's eyes are not enlarged and the eyeball is not expanded, the upper eyelid does not need to be extended, so that the operating part 15b of the eyebrow extension 15 does not protrude out of the viewing hole 11. When the patient's eyes are small and the iris is slightly obscured by the eyelids, the eyebrow expander 15 moves the pin shaft 16 when the handle 15a of the eyebrow expander 15 is moved upward. As a starting point, it rotates clockwise in the drawing so that the operating part 15b is rotated downward. In this state, when the handle 15a is moved forward (patient eye direction), the operating part 15b is released. Protruding out of the eyeball 11 is in contact with the lower part of the upper eyelid of the patient.

Pressing the handle (15a) in this state to move the operating portion (15b) to move upwards to expand the upper eyelid is to the state that the entire iris is expressed as the eye is expanded.

When the user turns on the shooting button in the state where the eye iris is displayed in this way, the control device 22 that receives the on-operation command receives the relay switch RL1 (RL2) of the switching unit 26 only once. Alternately turn-on, and each of the relay switches RL1 and RL2 alternately turn-on to supply the output power of the adapter 21 to the halogen lamps 23a and 23b, thereby providing two halogen lamps 23a. The 23b lights sequentially one after another.

The light irradiated from the halogen lamps is transmitted through the optical fiber cables 27a to 27d in the light receiver 27 installed in front of the halogen lamps 23a and 23b, wherein the optical fiber cables 27a to 27d are light sources. Since the state of being connected to the main line 12 by the control port 31 of the connector 3, the light through the optical fiber cables 27a to 27d is transmitted through the optical fiber cables 27a to 27d of the main line 12 to photograph The eyeball to be photographed is located in front of the eyeball 11.

That is, when the halogen lamp 23a on one side is turned on, light is irradiated through the optical fiber cables 12a and 12b as shown in FIG. 8 (a), and the light irradiated from the optical fiber cable 12a is the upper white part of the eyeball. On the other hand, the light irradiated from the optical fiber cable 12b is shined on the upper iris portion of the eyeball. When light shines on the upper side of the iris, the lower side of the iris can maintain a bright state without forming reflected light, and when other light shines on the upper white part of the eye, the boundary between the lower part of the iris and the white part of the eye Since the part is seen more clearly, the upper part of the iris containing the radiant light is removed from the captured image at this time, thereby obtaining an iris image in which the tissue of the iris is clearly expressed.

On the other hand, when the halogen lamp 23b on the other side is turned on, light is irradiated through the optical fiber cables 12c and 12d as shown in FIG. 8 (b), and the light irradiated from the optical fiber cable 12c is the lower white of the eyeball. On the part, the light irradiated from the optical fiber cable 12d is shined on the lower iris part of the eyeball. When light is shining on the lower side of the iris, the upper side of the iris can maintain a somewhat bright state without forming reflected light.In this case, when other light shines on the lower white part of the eye, the upper part of the iris and the eyeball Since the boundary between the upper white part of the image is seen more clearly, if you remove the lower part of the iris that contains the reflected light from the captured image at this time, the iris image of the iris tissue can be obtained clearly. .

In this way, when light is irradiated to the upper and lower sides of the eyeball, the iris camera 1 continuously photographs the iris and outputs the image of the iris to the computer monitor. The image of the portion irradiated directly, that is, the portion in which the reflected light exists, is removed, and the image of the remaining portion is synthesized to form a clear iris image.

On the other hand, when the halogen lamps 23a and 23b are broken, other lighting means prepared in advance are used.

That is, the coupling protrusion 56 formed below the lens frame 5 is inserted into and coupled to the coupling recess 17a of the coupling portion 17 formed at the front lower end of the iris imager 1 so that the lens frame 5 is attached to the iris imager. (1), the switch SW of the optical output device 2 is turned on so that the output terminals of the relay switches RL1 and RL2 and the two pairs of lamps 71a, 71b, 71c, 71d are connected. To configure the lighting means.

And, in the case of a patient with a large eye, the screw 65 is rotated so that the recreational bar 64 is moved rearward, thereby preventing the case where the distal end of the recreational bar 64 stabs the eyeball or the upper eyelid. If the eyeball is small or the upper eyelid is struck underneath to cover part of the iris, rotate the screw 65 in the opposite direction as when the retractor 64 is retracted. After moving forward to protrude and then pressing the front part of the hinge body 61 with a finger, the hinge body 61 is rotated while compressing the spring 63 starting from the hinge axis 62, and thus the rebar 64 The state is inclined downward.

At this time, when the iris camera 1 is advanced to bring the lens frame 5 close to the eyeball, the contact hole 66 inserted into the distal end of the rebar 64 is in a state of lightly pressing an appropriate part of the upper eyelid. When the finger holding the hinge body 61 is put on, the hinge body 61 itself rotates upward by the elastic restoring force of the spring 63 that has been compressed and rotates the recevar 64 upward to lift the upper eyelid. As you lose, you will be able to shoot irises.

When the photographing button is operated on in this state, as described above, the relay switches RL1 and RL2 alternately turn on, and the relay switches RL1 and RL2 alternately turn on to operate the adapter 21. By supplying the output voltage to the lamps 71a, 71b, 71c, 71d through the switch SW, the lamps 71a, 71b, 71c, 71d are alternately lit to illuminate the eye.

The lamps 71a and 71b are interlocked and turned on when the relay switch RL1 is turned on so that the lamp 71a illuminates the upper white part of the eye and the lamp 71b illuminates the upper part of the iris. 71d is interlocked with the ON operation of the relay switch RL2, so that the lamp 71c illuminates the lower white part of the eyeball and the lamp 71d illuminates the lower part of the iris.

The irradiation angle of the lamp can be adjusted by holding the operating plate 72 in which the lamp is installed by hand and rotating it by a predetermined angle, and the friction protrusion 73a of the angle adjusting unit 73 formed on one side of the operating plate 72 and the lens frame body. Since the adjusted irradiation angle of the operation plate 72 is maintained while the stopper protrusion 67 protruding from the side of (5) is maintained, the irradiation angles of the lamps 71a, 71b, 71c, 71d are adjusted by this operation. Adjust precisely so that light can be accurately reflected on the upper and lower iris and white part of the eyeball.

As described above, when the upper and lower sides of the eye are selectively illuminated by the lighting operation of the lamps 71a and 71b and 71c and 71d, the iris camera 1 continuously photographs the iris and transmits it to the computer. Through the video editing process of the same computer, a clear iris image is made.

When photographing the iris, the lens is photographed in a state in which the magnifying lens 54 is not coupled to the lens fitting hole 51 of the lens frame 5, and in the state in which the magnifying lens 54 is inserted into the lens fitting hole 51. The frame 5 may be detached from the iris imager 1 so that the user can directly observe the iris of the patient.

In addition, the iris camera 1 is moved to the front, rear, left, right, up, down direction by a separate key operation connected to the computer, so that the user adjusts the iris camera 1 at a long distance (11) can be adjusted to fit the eye of the patient.

As described above, the present invention is to shoot the iris with a computer, divide the iris into two parts, and then illuminate the upper and lower sides of the iris separately and shoot twice in succession, and then synthesize the two shots with a computer. By selectively controlling the halogen lamp that supplies light as a relay switch, it is possible to further improve the reliability of instantaneous iris shooting, to prevent noise during shooting, and to prevent the halogen lamp from being disabled. In contrast, the front of the iris camera is provided with a separate lens frame detachable, and a pair of lamps are installed on the left and right sides of the render frame to alternately turn on in conjunction with the switching operation of the relay switch, so that the halogen lamp is defective. It is an iris photographing device that can normally perform iris photographing.

Claims (3)

A switching unit having a light source supply unit consisting of a plurality of halogen lamps, a relay switch for selectively switching the driving power of the halogen lamps under the control of a control device, and a pair of optical fibers, which are installed in close proximity to the front surface of the halogen lamps An optical output device composed of a receiver to which a cable is fixed; A case into which a pair of optical fiber cables drawn out from the optical output device are introduced, a control port for moving the incoming optical fiber cable from side to side, and a pair of optical fiber cables selectively connected to the two optical fiber cables to receive a light source A light source connector provided with; Any two pairs of optical fiber cables of the pair of optical fiber cables drawn out from the light source connector are connected, and when the two pairs of cables alternately illuminate the upper, lower iris and the white part of the eye, the upper and lower sides of the iris are alternately photographed twice. Next, the iris imager for transmitting the photographed iris image to a computer monitor; Synthesized the image of the iris shot twice while illuminating the upper iris and the white part of the eye, and the lower iris and the white part of the eyeball alternately, but discard the part with the reflected light and take only the part without the reflected light, and then synthesize it Eye iris imaging device, characterized in that to be displayed in the image. According to claim 1, In preparation for the inoperative state of the halogen lamp, the engaging portion extends protruding to the lower end of the tip of the iris camera and the coupling groove formed on the upper end; A lens assembly ring detachably screwed to the female thread of the lens fitting hole so that the magnifying lens can be replaced, and has a lens fixing ring for fixing the magnifying lens inserted into the lens fitting portion, and a lens having a coupling protrusion formed at the bottom thereof to form a coupling groove. The framework; A hinge body rotatably hinged to an upper center of the lens frame body and elastically supported by a spring, a screw capable of protruding and rotating a part of the upper surface of the hinge body, and rotating the screw in engagement with the screw Eyelid expansion mechanism consisting of a lever lever to move forward and backward through the front and rear of the hinge body according to; An operating plate, each of which has a pair of lamps coupled thereto, is rotatably hinged to both sides of the lens frame to illuminate the eye's iris, and each of the lamps is connected to an output terminal of the relay switch through a separate switch to operate the switching of the relay switch. The eye iris imaging apparatus further comprises; an illumination unit configured to alternately turn on to illuminate the upper and lower sides of the iris alternately. According to claim 2, Semi-circular angle adjusting portion formed with a plurality of friction projections on the outer peripheral surface formed on one side of the operating plate, Protruding to form a stopper projection engaging the friction projection on the side of the lens frame body to which the operating plate is coupled Eye iris imaging device characterized in.