Optical tomographic imaging apparatus

An optical tomographic imaging apparatus configured to acquire a tomographic image of a subject's eye based on light generated by combining return light from the subject's eye irradiated by measurement light, and reference light corresponding to the measurement light, the optical tomographic imaging apparatus comprising:

• a first optical path branching unit disposed an optical path of the measurement light, and configured to branch from the optical path of the measurement light to an optical path of an anterior eye observation optical system for observing an anterior eye of the subject's eye;
• and
• a second optical path branching unit disposed on the optical path of the measurement light, and configured to branch from the optical path of the measurement light to an optical path of a fundus observation optical system for observing a fundus of the subject's eye,
• wherein the optical path of the anterior eye observation optical system is located on a reflection optical path of the first optical path branching unit,
• wherein the optical path of the fundus observation optical system is located on a transmission optical path of the first optical path branching unit and a transmission optical path of the second optical path branching unit, and
• wherein the optical path of the measurement light is located on the transmission optical path of the first optical path branching unit and a reflection optical path of the second optical path branching unit.

An imaging apparatus configured to acquire an image of a subject's eye based on return light from the subject's eye irradiated by measurement light, the imaging apparatus comprising:

• an optical path branching unit disposed an optical path of the measurement light, and configured to branch from the optical path of the measurement light to an optical path of an anterior eye observation optical system for observing an anterior eye of the subject's eye;
• and
• wherein the optical path of the anterior eye observation optical system is located on a reflection optical path of the optical path branching unit, and
• wherein the optical path of the measurement light is located on a transmission optical path of the optical path branching unit.

An imaging apparatus configured to acquire an image of a subject's eye based on return light from the subject's eye irradiated by measurement light, the imaging apparatus comprising:

• an optical path branching unit disposed an optical path of the measurement light, and configured to branch from the optical path of the measurement light to an optical path of a fundus observation optical system for observing a fundus of the subject's eye;
• and
• wherein the optical path of the fundus observation optical system is located on a transmission optical path of the optical path branching unit, and
• wherein the optical path of the measurement light is located on a reflection optical path of the optical path branching unit.