JP2011005005A5

JP2011005005A5 -

Info

Publication number: JP2011005005A5
Application number: JP2009152040A
Authority: JP
Filing date: 2009-06-26
Publication date: 2012-08-09
Anticipated expiration: 2029-06-26

Description

（１）被検者眼に対して前後左右方向に移動される移動台と、被検者眼を撮影するための撮影光学系を搭載し前記移動台上に載置される撮影部であって，被検者眼に投影するアライメント指標の検出結果に基づいて前記移動台に対して所定の基準位置を中心に前後左右に移動可能な撮影部と、被検者眼の眼底を撮影する眼底撮影モードと前眼部を撮影する前眼部撮影モードを切換える撮影切換手段と、該撮影切換手段で前眼部撮影モードが選択されたときの前記移動台に対する前記撮影部の前後方向の固定位置を、前記眼底撮影モードが選択されたときの前記移動台に対する前記撮影部の前後方向の前記基準位置より後側とする移動手段と、を備えることを特徴とする。
（２）（１）の眼底撮影装置において、アライメント指標の検出結果に基づき前記撮影部と被検者眼のアライメントを自動的に行う自動アライメントモードと，前記撮影部と被検者眼のアライメントを手動で行う手動アライメントモードとを切換えるモード切換手段とを備え、前記移動制御手段は、前記モード切換手段で手動アライメントモードが選択されたときに、前記移動台に対する前記撮影部の前後方向の固定位置を前記自動アライメントモードにおける前記撮影部の前後方向の基準位置より前側とすることを特徴とする。
（３）（２）の眼底撮影装置において、前記移動制御手段は、前記モード切換手段で手動アライメントモードが選択された時に、前記撮影部の固定位置を前記撮影部の移動可能範囲の最前とすることを特徴とする。
（４）（２）〜（３）の眼底撮影装置において、
前記眼底撮影モードでの前記移動台に対する前記撮影部の前後方向の基準位置は、前記自動アライメントにおける前後方向の移動範囲の中間位置、または中間位置よりも後側に設定されていることを特徴とする。
(1) An imaging unit that is mounted on a moving table that includes a moving table that is moved in the front-rear and left-right directions with respect to the subject's eye and an imaging optical system that images the subject's eye. , An imaging unit that can move back and forth and right and left around a predetermined reference position with respect to the moving table based on the detection result of the alignment index projected on the subject's eye, and fundus imaging that images the fundus of the subject's eye A photographing switching means for switching between an anterior eye photographing mode for photographing a mode and an anterior eye part, and a fixed position in the front-rear direction of the photographing part relative to the movable table when the anterior eye photographing mode is selected by the photographing switching means. And moving means for rearward of the reference position in the front-rear direction of the imaging unit with respect to the moving table when the fundus imaging mode is selected.
(2) In the fundus imaging apparatus of (1), an automatic alignment mode for automatically aligning the imaging unit and the subject's eye based on the detection result of the alignment index, and alignment of the imaging unit and the subject's eye are performed. Mode switching means for switching between manual alignment modes performed manually, and the movement control means is a fixed position in the front-rear direction of the photographing unit with respect to the moving table when the manual alignment mode is selected by the mode switching means. Is in front of the reference position in the front-rear direction of the photographing unit in the automatic alignment mode.
(3) In the fundus imaging apparatus according to (2), the movement control unit sets the fixed position of the imaging unit to the forefront of the movable range of the imaging unit when the manual alignment mode is selected by the mode switching unit. It is characterized by that.
(4) In the fundus imaging apparatus according to ( 2) to (3),
A reference position in the front-rear direction of the photographing unit with respect to the moving platform in the fundus photographing mode is set to an intermediate position of a moving range in the front-rear direction in the automatic alignment, or a rear side of the intermediate position. To do.

Claims

A moving table that is moved in the front-rear and left-right directions with respect to the subject's eye;
An imaging unit equipped with an imaging optical system for imaging a subject's eye and placed on the movable table, the imaging unit being mounted on the movable table based on a detection result of an alignment index projected onto the subject's eye An imaging unit that can move back and forth and left and right around a predetermined reference position ;
Photographing switching means for switching between a fundus photographing mode for photographing the fundus of the subject's eye and an anterior eye photographing mode for photographing the anterior eye;
The fixed position in the front-rear direction of the photographing unit with respect to the moving table when the anterior eye photographing mode is selected by the photographing switching means, and the front and rear of the photographing unit with respect to the moving table when the fundus photographing mode is selected. A fundus imaging apparatus, comprising: a movement control unit that is located behind the reference position in the direction.

The fundus imaging apparatus according to claim 1,
Mode switching means for switching between an automatic alignment mode for automatically aligning the imaging unit and the subject's eye based on the detection result of the alignment index, and a manual alignment mode for manually aligning the imaging unit and the subject's eye And
The movement control means is configured such that when the manual alignment mode is selected by the mode switching means, the fixed position of the imaging unit in the front-rear direction with respect to the moving table is determined from the reference position in the front-rear direction of the imaging unit in the automatic alignment mode. A fundus photographing apparatus characterized by being a front side.

The fundus photographing apparatus according to claim 2,
The fundus imaging apparatus according to claim 1, wherein the movement control unit sets the fixed position of the imaging unit to the forefront of the movable range of the imaging unit when the manual alignment mode is selected by the mode switching unit.

In the fundus imaging apparatus according to claim 2,
A reference position in the front-rear direction of the photographing unit with respect to the moving platform in the fundus photographing mode is set to an intermediate position of a moving range in the front-rear direction in the automatic alignment, or a rear side of the intermediate position. Fundus photographing device.