Retina photographing apparatus and retina photographing method using same

Abstract

A retina photographing apparatus includes a body unit, a retina photographing unit installed inside the case, and a driving unit. The body unit includes a case providing an outer appearance of the retina photographing apparatus. The retina photographing unit is structured to irradiate light onto a retina of an examinee's left or right eye and detect the light reflected from the retina. The retina photographing unit is operable to acquire an image of the retina. The driving unit is arranged to be inside the case and configured to move a position of the retina photographing unit inside the case such that the retina photographing unit photographs both of the examinee's eyes. The driving unit is further operable to locate the position of the retina photographing unit and adjust the position to an optimal position by using stored position information.

We claim: 
     
         1 . A retina photographing apparatus comprising:
 a body unit comprising a case providing an outer appearance of the retina photographing apparatus;   a retina photographing unit installed inside the case, the retina photographing unit structured to irradiate light onto a retina of an examinee's left eye or right eye and detect the light reflected from the retina, the retina photographing unit operable to acquire an image of the retina;   a driving unit arranged to be inside the case and configured to move a position of the retina photographing unit inside the case such that the retina photographing unit photographs both of examinee's eyes; and   wherein the driving unit is further operable to locate the position of the retina photographing unit and adjust the position to an optimal position by using stored position information.   
     
     
         2 . The retina photographing apparatus of  claim 1 , wherein the retina photographing unit further comprises:
 a first light source configured to irradiate first light along a first optical axis onto the retina of the examinee's left eye or right eye;   a detector configured to detect the first light reflected from the retina along a second optical axis; and   wherein the first optical axis intersects the second optical axis.   
     
     
         3 . The retina photographing apparatus of  claim 2 , wherein the retina photographing unit further comprises a second light source configured to irradiate second light along a third optical axis onto a retina of the examinee's left eye or right eye,
 the second light having a second wavelength band that is different from a first wavelength band of the first light,   wherein the third optical axis intersects the second optical axis, and   wherein the detector is configured to detect the first light and the second light reflected from the retina.   
     
     
         4 . The retina photographing apparatus of  claim 1 , further comprising:
 a display unit positioned inside the case and providing a predetermined pattern image to the examinee's left eye or right eye, the predetermined pattern image including a fixation point to the examinee's left eye or right eye.