Title:
OPTICAL COHERENCE TOMOGRAPHIC DEVICE
Document Type and Number:
Japanese Patent JP2021037038
Kind Code:
A
Abstract:
To provide a mechanism to make an adjustment so that light volume of measurement light and light volume of reference light become desired light volume respectively.SOLUTION: An optical coherence tomographic device includes: a light source light volume monitor 152 for detecting light source light volume, which is light volume of light emitted from an OCT light source 110; an optical fiber coupler 153 for dividing the light emitted from the OCT light source 110 into measurement light to be applied onto an eye E to be examined, and reference light; a rotation NDF 123 for making an adjustment so that the light source light volume becomes first predetermined light volume when the light source light volume is not the first predetermined light volume; a reference light volume monitor 157 for detecting reference light volume, which is light volume of the reference light, when the light source light volume is the first predetermined light volume; and a rotation NDF 143 for making an adjustment so that the reference light volume becomes second predetermined light volume when the reference light volume is not the second predetermined light volume.SELECTED DRAWING: Figure 1
Inventors:
KANAMARU RISA
MIZUNO TOMOYASU
MIZUNO TOMOYASU
Application Number:
JP2019159842A
Publication Date:
March 11, 2021
Filing Date:
September 02, 2019
Export Citation:
Assignee:
CANON KK
International Classes:
A61B3/10; G01N21/17
Attorney, Agent or Firm:
Takayoshi Kokubun