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Three dimensional, position observation method and apparatus

Foreign code F110005367
File No. K01707WO
Posted date Sep 5, 2011
Country United States of America
Application number 98818706
Gazette No. 20090219549
Gazette No. 8203720
Date of filing Jun 29, 2006
Gazette Date Sep 3, 2009
Gazette Date Jun 19, 2012
International application number JP2006312958
International publication number WO2007004497
Date of international filing Jun 29, 2006
Date of international publication Jan 11, 2007
Priority data
  • P2005-197049 (Jul 6, 2005) JP
  • 2006WO-JP312958 (Jun 29, 2006) WO
Title Three dimensional, position observation method and apparatus
Abstract (US8203720)
A three-dimensional position observation apparatus provided with a lens system having focusing and diaphragm mechanisms, for forming an image on an imaging plane by light from an observation object includes a beam steering member disposed in a light path extending from the observation object to the imaging plane, for changing a traveling direction of observation light into a plurality of different directions, and an image analyzing unit for analyzing a position of the observation object based on a positional relation between a plurality of images on the imaging plane formed by light passing through the beam steering member.
Scope of claims [claim1]
1. A three-dimensional position observation apparatus provided with a lens system having focusing and diaphragm mechanisms, for forming an image on an imaging plane by light from an observation object, the three-dimensional position observation apparatus comprising: a beam steering member disposed in a light path extending from the observation object to the imaging plane, for changing a part of a traveling direction of observation light; and
an image analyzing unit for analyzing a position of the observation object based on a positional relation between an image on the imaging plane formed by light passing through the beam steering member and an image on the imaging plane formed by light not passing through the beam steering member.
[claim2]
2. The three-dimensional position observation apparatus according to claim 1, wherein the beam steering member is a wedge prism.
[claim3]
3. The three-dimensional position observation apparatus according to claim 2, wherein the beam steering member is two wedge prisms each having the same inclination angle, and wherein the two wedge prisms are disposed in a combined form such that inclination directions of inclination surfaces are reversely oriented.
[claim4]
4. The three-dimensional position observation apparatus according to claim 3, wherein at least one of the wedge prisms is disposed such that the inclination surface faces a side of the imaging plane.
[claim5]
5. The three-dimensional position observation apparatus according to claim 2, wherein at least one of the wedge prisms is disposed such that the inclination surface faces a side of the imaging plane.
[claim6]
6. A three-dimensional position observation method using a three-dimensional position observation apparatus provided with a lens system having focusing and diaphragm mechanisms, for forming an image on an imaging plane by light from an observation object, the three-dimensional position observation method comprising: disposing a beam steering member in a light path extending from the observation object to the imaging plane, for changing a part of a traveling direction of observation light; and analyzing a position of the observation object based on a positional relation between an image on the imaging plane formed by light passing through the beam steering member and an image on the imaging plane formed by light not passing through the beam steering member with an image analyzing unit.
  • Inventor, and Inventor/Applicant
  • NISHIZAKA TAKAYUKI
  • MIZUTANI KANA
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
IPC(International Patent Classification)
Reference ( R and D project ) PRESTO Structure and Function of Biomolecules AREA
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