| 摘要 |
PROBLEM TO BE SOLVED: To provide an ophthalmologic apparatus capable of favorably forming a ring-shaped pattern index image on a cornea while restraining the apparatus from becoming larger.SOLUTION: An index projection unit 100 of the ophthalmologic measuring apparatus comprises: ring-shaped light sources 61a, 62a arranged concentrically about a measurement light axis La; and a reflection member 121. The reflection member 121 includes a reflection surface 121a facing the measurement light axis La side in a radial direction of each of the concentric circles, and reflects the light from the ring-shaped light source 61a to the measurement light axis La side by the reflection surface 121a. In addition, the index projection unit 100 comprises a cover 110 with double ring slits formed therein, and uses the respective ring slits to guide the light reflected off the reflection member 121a to a first circumferential area A1 on a cornea Ec in a ring-shaped pattern and the light from the ring-shaped light source 62a to a second circumferential area A2 in a ring-shaped pattern.SELECTED DRAWING: Figure 5 |
