| Project/Area Number |
05805005
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | Waseda University |
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Principal Investigator |
OHZU Hitoshi Waseda University, Dept.of Applied Physics, Professor, 理工学部, 教授 (10063520)
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| Project Period (FY) |
1993 – 1994
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| Project Status |
Completed (Fiscal Year 1994)
|
| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1994: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1993: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Keywords | Vision / Accommodation / Resting point / Spatial Frequency / Eye movement / Optometer / 生理光学 |
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| Research Abstract |
Accomodation responses to 2-D sinusoidal waves, and square masks have been experimantally measured by using an infrared optometer in order to clarify the effects of image's spatial frequency and viewpoint on the accommodation error. Consequently, our data suggested that there exists another mechanism causing a different kind of accommodation error from the conventional accommodation lag. According to the new mechanism, it was , concluded that the accommodation error to sinusoidal waves increases monotonously as the spatial frequency lowers, and that the accommodation error to square waves and square masks changes depending on whether the viewpoint is on the edges or on the center points between the edges. Moreover, the new mechanism can also cause the resting point to change depending on the spatial frequency.
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