DEFORMABLE MIRROR SYSTEM, CONTROL METHOD THEREFOR, AND OPHTHALMIC APPARATUS
First Claim
1. A deformable mirror system, comprising:
- a deformable mirror capable of changing a shape of a reflecting surface by a deformation amount in accordance with an input signal;
a light wavefront measurement unit configured to measure a light wavefront shape of reflected light from the deformable mirror;
a conversion factor calculation unit configured to calculate a conversion factor used in obtaining the input signal from a variation in light wavefront shape of the reflected light with respect to a change in input signal;
a shape difference calculation unit configured to calculate a shape difference between the light wavefront shape measured by the light wavefront measurement unit and a light wavefront shape based on the input signal; and
a conversion factor update unit configured to update the conversion factor in accordance with the calculated shape difference.
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Accused Products
Abstract
For reducing a time utilized in an AO process, provided is a deformable mirror system, including: a deformable mirror capable of changing a shape of a reflecting surface by a deformation amount in accordance with an input signal; a light wavefront measurement apparatus configured to measure a light wavefront shape of reflected light from the deformable mirror; a conversion factor calculation apparatus configured to calculate a conversion factor used in obtaining the input signal from a variation in light wavefront shape of the reflected light with respect to a change in input signal; a shape difference calculation apparatus configured to calculate a shape difference between the light wavefront shape measured by the light wavefront measurement apparatus and a light wavefront shape calculated from the input signal; and a conversion factor update unit configured to update the conversion factor in accordance with the calculated shape difference.
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Citations
10 Claims
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1. A deformable mirror system, comprising:
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a deformable mirror capable of changing a shape of a reflecting surface by a deformation amount in accordance with an input signal; a light wavefront measurement unit configured to measure a light wavefront shape of reflected light from the deformable mirror; a conversion factor calculation unit configured to calculate a conversion factor used in obtaining the input signal from a variation in light wavefront shape of the reflected light with respect to a change in input signal; a shape difference calculation unit configured to calculate a shape difference between the light wavefront shape measured by the light wavefront measurement unit and a light wavefront shape based on the input signal; and a conversion factor update unit configured to update the conversion factor in accordance with the calculated shape difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control method for a deformable mirror system, comprising:
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changing a shape of a reflecting surface of a deformable mirror by a deformation amount in accordance with an input signal; measuring a light wavefront shape of reflected light from the deformable mirror; calculating a conversion factor used in obtaining the input signal from a variation in the light wavefront shape of the reflected light with respect to a change in the input signal; calculating a shape difference between the measured light wavefront shape and a light wavefront shape calculated based on the input signal; and updating the conversion factor in accordance with the calculated shape difference.
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10. A recording medium having recorded thereon a program for causing a computer to execute each of steps of a control method for a deformable mirror system, the control method comprising:
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changing a shape of a reflecting surface of a deformable mirror by a deformation amount in accordance with an input signal; measuring a light wavefront shape of reflected light from the deformable mirror; calculating a conversion factor used in obtaining the input signal from a variation in the light wavefront shape of the reflected light with respect to a change in the input signal; calculating a shape difference between the measured light wavefront shape and a light wavefront shape calculated based on the input signal; and updating the conversion factor in accordance with the calculated shape difference.
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Specification