OPTICAL TOMOGRAPHIC IMAGING APPARATUS
First Claim
1. An optical tomographic imaging apparatus that takes a tomographic image of an object by splitting a light beams from a light source into a measuring beams and a reference beams, guiding the measuring beams to the object through scanning with a scanning optical system, and using a return beams corresponding to the measuring beams that is one of reflected and scattered by the object and the reference beams, the optical tomographic imaging apparatus comprising:
- a focus position setting device that splits a zone within a predetermined imaging depth range into multiple focus zones so as to set multiple focus positions;
a reference position setting device that sets at least two reference positions in an imaging depth direction within the predetermined imaging depth range; and
a focus controlling device that performs focusing at the multiple focus positions sequentially based on focus position information generated by said focus position setting device and a focus condition of an in-focus state for the at least two reference positions set in advance by said reference position setting device.
1 Assignment
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Accused Products
Abstract
Provided is an optical tomographic imaging apparatus that is capable of shortening a period of time of focusing at multiple focus positions when images split in a depth direction are obtained by zone focusing. The optical tomographic imaging apparatus includes: a focus position setting device for splitting a zone within a predetermined imaging depth range into multiple focus zones so as to set multiple focus positions; a reference position setting device for setting at least two reference positions in an imaging depth direction within the predetermined imaging depth range; and a focus controlling device for performing focusing at the multiple focus positions sequentially based on focus position information generated by the focus position setting device and determining a focus condition of an in-focus state for the at least two reference positions set in advance by the reference position setting device.
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Citations
8 Claims
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1. An optical tomographic imaging apparatus that takes a tomographic image of an object by splitting a light beams from a light source into a measuring beams and a reference beams, guiding the measuring beams to the object through scanning with a scanning optical system, and using a return beams corresponding to the measuring beams that is one of reflected and scattered by the object and the reference beams, the optical tomographic imaging apparatus comprising:
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a focus position setting device that splits a zone within a predetermined imaging depth range into multiple focus zones so as to set multiple focus positions; a reference position setting device that sets at least two reference positions in an imaging depth direction within the predetermined imaging depth range; and a focus controlling device that performs focusing at the multiple focus positions sequentially based on focus position information generated by said focus position setting device and a focus condition of an in-focus state for the at least two reference positions set in advance by said reference position setting device. - View Dependent Claims (2, 3, 4, 5)
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6. An imaging method of taking a tomographic image of an object by splitting a light beams from a light source into a measuring beams and a reference beams, guiding the measuring beams to the object through scanning with a scanning optical system, and using a return beams corresponding to the measuring beams that is one of reflected and scattered by the object and the reference beams, the imaging method comprising:
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a first setting step of splitting a zone within a predetermined imaging depth range into multiple focus zones so as to set multiple focus positions; a second setting step of setting at least two reference positions in an imaging depth direction within the predetermined imaging depth range; and a control step of performing focusing at the multiple focus positions sequentially based on focus position information set in said first setting step and determining a focus condition of an in-focus state for the at least two reference positions set in advance in the second setting step. - View Dependent Claims (7, 8)
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Specification