Claims
- 1. An opthalmic photographing apparatus having:
- photographing means for photographing the fundus of an eye to be examined at a variable magnification;
- a ring slit having an outside diameter provided in an illuminating optical path for illuminating the fundus of the eye at a position substantially conjugate with the front-eye-part; and
- means for varying the slit width of a ring slit image projected onto the eye to be examined, with a magnification change such that the outside diameter of the ring slit image is not varied.
- 2. An opthalmic photographing apparatus according to claim 1, wherein during narrow angle photography, as compared with during wide angle photography, the inside diameter of the ring slit image is made small without the outside diameter thereof being varied.
- 3. An opthalmic photographing apparatus having:
- photographing means for photographing the fundus of an eye to be examined at a variable magnification;
- a ring slit having an outside diameter and a baffle provided in an illuminating optical path for illuminating the fundus of the eye at positions substantially conjugate with front-eye-part and the crystalline lens, respectively; and
- means for varying the slit width of a ring slit image projected onto the eye to be examined and the size of a baffle image, with a magnification change such that the outside diameter of the ring slit image is not varied.
- 4. An opthalmic photographing apparatus according to claim 3, wherein during narrow angle photography, as compared with during wide angle photography, the inside diameter of the ring slit image is made small without the outside diameter thereof being varied and the outside diameter of the baffle image is made small.
Priority Claims (1)
Number |
Date |
Country |
Kind |
58-48095 |
Mar 1983 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 589,740 filed Mar. 15, 1984, now abandoned.
US Referenced Citations (3)
Foreign Referenced Citations (1)
Number |
Date |
Country |
108623 |
Aug 1979 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
589740 |
Mar 1984 |
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