WO2010087046A1 - 眼科撮影装置 - Google Patents
眼科撮影装置 Download PDFInfo
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- WO2010087046A1 WO2010087046A1 PCT/JP2009/064823 JP2009064823W WO2010087046A1 WO 2010087046 A1 WO2010087046 A1 WO 2010087046A1 JP 2009064823 W JP2009064823 W JP 2009064823W WO 2010087046 A1 WO2010087046 A1 WO 2010087046A1
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- imaging
- optical path
- pair
- fundus
- image
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/13—Ophthalmic microscopes
- A61B3/132—Ophthalmic microscopes in binocular arrangement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
- G06T2207/10012—Stereo images
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30041—Eye; Retina; Ophthalmic
Definitions
- the present invention relates to an ophthalmologic photographing apparatus, and more particularly, to an ophthalmic photographing apparatus such as a fundus camera capable of observing and photographing a pair of fundus images having stereoscopic parallax.
- the fundus occupies a pair of left and right stereoscopic fundus images by dividing the reflected light from the fundus that is incident through the objective lens and forming the divided light beams with a pair of imaging optical systems.
- a camera is known (Patent Documents 1 and 2).
- Patent Document 3 focusing is performed by observing two fundus images divided to the left and right through a two-hole aperture. However, these two fundus images are divided again and the optical path is divided again. No configuration has been proposed for forming a pair of parallax images for stereoscopic viewing by forming an image.
- the present invention has been made in view of such points, and it is an object of the present invention to provide an ophthalmologic photographing apparatus capable of observing and photographing a pair of stereoscopic fundus images with a simple configuration. To do.
- the present invention An ophthalmologic photographing apparatus for photographing an image of a fundus of a subject's eye with an electronic imaging means, A two-hole aperture that is disposed at the anterior ocular segment conjugate position of the eye to be examined and divides the reflected light beam from the eye fundus of the eye into a pair of right and left light beams with parallax; A first imaging optical system that forms a pair of left and right fundus images as an intermediate image from the divided luminous flux; A second imaging optical system that separates the pair of fundus images formed as the intermediate images into left and right images and re-images them on the imaging surface of the electronic imaging means; It is characterized by having.
- the second imaging optical system is disposed at a position almost conjugate with the two-hole aperture, divides an optical path from a pair of fundus images formed as an intermediate image, and images the pair of fundus images by an electronic imaging unit. It is composed of a pair of optical path splitting lenses that re-image on a plane. Further, a relay lens having a focal plane on the surface on which the intermediate image is formed is disposed between the pair of optical path dividing lenses and the surface on which the intermediate image is formed. In the second imaging optical system, the distance between the lens central axes of the pair of optical path splitting lenses is set to be approximately equal to half the total length of the imaging surface along the direction orthogonal to the central axis.
- a pair of left and right fundus images with parallax once formed as an intermediate image are separated left and right by an optical path splitting lens and re-imaged on the imaging surface of the imaging means, so an optical path splitting prism is used.
- an optical path splitting prism is used.
- FIG. 1 is an optical diagram showing an overall configuration of an ophthalmologic photographing apparatus.
- FIG. 2 is an optical diagram showing a basic optical configuration when performing stereo shooting with the optical arrangement of FIG. 1. It is a front view of 2 hole aperture. It is a front view of a single hole aperture. It is a front view of the photography mask for stereo photography and monocular photography shown separately. It is a front view of the photography mask for stereo photography and monocular photography arranged in piles. It is explanatory drawing which showed the state which a focus deteriorates at the time of stereo imaging
- FIG. 3 is an optical diagram corresponding to FIG. 2 for correcting an optical path length and chromatic aberration during stereo shooting. It is an optical diagram which explains simply the optical system which correct
- FIG. 1 shows a fundus camera 10 capable of performing stereo photography (stereo photography) and monocular photography (monaural photography).
- FIG. 1 is drawn centering on stereo photography. In monocular photography, the optical elements are switched to corresponding ones.
- the fundus camera 10 is provided with an illumination optical system that illuminates the fundus and an optical system that forms an image of the illuminated fundus.
- the illumination optical system the light emitted from the light source 11 such as a halogen lamp and the light reflected by the concave mirror 12 become infrared light through the visible cut infrared transmission filter 13 that can be inserted into and removed from the optical path, and pass through the strobe 14. Then, the light is incident on the diffusion plate 15 and diffused, and illuminates the ring slit 16 for stereo photography arranged at a position conjugate with the anterior eye portion (pupil) 1b of the eye 1 to be examined.
- the ring slit 16 is switched to a monocular ring slit 16 'during monocular photography.
- the illumination light that has passed through the ring slit 16 passes through the lens 17, the black dot plate 18 for removing the reflection of the objective lens 22, the half mirror 19, and the relay lens 20, and has a perforated total reflection mirror 21 with a hole in the center. Reflected by.
- the black spot plate 18 is configured as a flat plate in which a black spot 18a is deposited at the center of a transparent glass plate 18b as shown in FIG. 9a.
- the black spot plate 18 is used for stereo photography, and is switched to the black spot plate 18 'as shown in FIG.
- the black spot plate 18 ' is configured as two closely contacted flat plates each having a black spot 18a' deposited at the center of a transparent glass plate 18b '.
- the two plates of the black spot plate 18 ' can move in a direction orthogonal to the illumination optical axis, and the positions of the two black spots 18a' can be adjusted.
- the illumination light reflected by the perforated total reflection mirror 21 passes through the objective lens 22 and enters the fundus 1a from the anterior eye part 1b of the eye 1 to be examined, and illuminates the fundus 1a with infrared light.
- Reflected light from the fundus 1a is received through the objective lens 22, passes through the hole of the perforated total reflection mirror 21, and serves as a photographing aperture having two circular holes 31a and 31b as shown in FIG. 3a. Is incident on the two-hole aperture 31.
- the two-hole aperture 31 is arranged at a position substantially conjugate with the anterior eye portion 1b of the eye 1 with its center 31c aligned with the imaging optical axis 48, and reflected from the fundus by the two holes 31a and 31b of the two-hole aperture 31.
- the light path is divided into left and right. A pair of left and right light beams from the fundus la with the optical path divided are incident on a focus lens 32.
- the focus lens 32 is movable along the photographing optical axis, and the fundus imaging position shifts due to individual differences in the eye diopter to be examined. Correct.
- a single-hole aperture 31 'as shown in FIG. 3b is inserted in the optical path at the anterior ocular segment conjugate position instead of the 2-hole aperture 31.
- the fundus image that has passed through the focus lens 32 subsequently passes through the imaging lens 33, is reflected by the half mirror 34, and is disposed at a position conjugate with the fundus 1a to pass through the imaging masks 42 and 43 that define the imaging range of the fundus. Then, it is incident on an infrared transmission visible reflection mirror (optical path dividing means) 36.
- the focus lens 32 and the imaging lens 33 constitute a first imaging optical system that forms a pair of left and right fundus images with parallax via the two-hole aperture 31 as intermediate images at the position of the photographing mask 43. .
- the photographing mask 42 is a monocular photographing mask composed of a circular opening 42a and a light blocking portion 42b that does not transmit all wavelengths.
- the shooting mask 43 is a shooting mask for stereo shooting and includes a rectangular opening 43a and a region 43b having a circular outer periphery that transmits only infrared light.
- the imaging mask 42 is fixedly arranged in the optical path with its center aligned with the imaging optical axis 48.
- the imaging mask 43 has its center aligned with the imaging optical axis 48 as shown in FIG. Is inserted into the optical path.
- the imaging mask 43 is released from the optical path, and the imaging mask 42 becomes effective.
- the infrared light transmitted through the infrared transmission visible reflection mirror 36 is reflected by the mirror 38, passes through the lens 37, and is configured by an infrared CCD having sensitivity to the infrared light. (Imaging means) is incident on 40 and the signal is input to the monitor 41.
- the relay lens 47 is arranged to connect the exit pupil image of the first imaging optical system to the second imaging optical system described later. Visible light reflected by the mirror 36 enters the two-hole aperture 50 disposed at a conjugate position with the anterior eye portion 1 b via the relay lens 47.
- the two-hole diaphragm 50 is a diaphragm similar to the two-hole diaphragm 31 shown in FIG. 3a, and is close to the two-hole diaphragm 50 (that is, at a position almost conjugate with the two-hole diaphragm 31), a pair of optical path dividing lenses 51, 52 is arranged.
- the pair of optical path dividing lenses divides the optical path from the photographing mask 43 and separates the left and right fundus images formed as intermediate images at the position of the photographing mask 43 so as not to overlap each other.
- a second imaging optical system for re-imaging is configured.
- the optical path splitting lenses 51 and 52 are optimally arranged at equal intervals with respect to the photographing optical axis 48, that is, axially symmetrical with respect to the photographing optical axis 48.
- An imaging surface 53a of an imaging device (imaging means) 53 composed of a visible CCD having sensitivity to visible light is disposed on the imaging surface by the second imaging optical system, and the optical path splitting lenses 51 and 52 and the imaging are taken.
- a return mirror 60 is disposed between the elements 53.
- the fundus image picked up by the image pickup device 53 can be stored in the memory 54, and is taken into an external personal computer (not shown), displayed on the monitor 41, or outputted to a printer (not shown). .
- the pair of optical path dividing lenses 51 and 52 having the same magnification can be switched to another pair of optical path dividing lenses 51 'and 52' having different magnifications, and a pair of fundus images can be taken at different magnifications.
- the photographing mask 43 for stereo photographing is also switched to the photographing mask 43 ′ having a different opening.
- an imaging lens 55 for monocular photography is inserted into the optical path instead of the optical path dividing lenses 51 and 52, and the two-hole aperture 50 is detached from the optical path.
- the illumination optical system is provided with a focus dot light source 30, and a light beam from the light source 30 is incident on the fundus 1 a via the half mirror 19, and the focus dot position changes according to the movement of the focus lens 32.
- the examiner can focus on the fundus of the eye to be examined by observing the focus dot.
- the anterior segment lens 44 is inserted, so that the examiner can confirm the image of the anterior segment 1b of the eye 1 to be examined on the monitor 41. Further, during alignment or focusing operation, one of the internal fixation lamps 45 composed of a plurality of LED light sources 45a is turned on, and the examiner performs alignment by causing the subject to gaze at the fixation lamps. And focusing operation can be ensured.
- FIG. 2 shows a main part of an optical system that forms a fundus image when performing stereo photography.
- the same elements as those in FIG. 1 are denoted by the same reference numerals.
- the position conjugate with the fundus 1a of the eye 1 to be examined is indicated by R, and the position conjugate with the anterior eye part (particularly the pupil) is indicated by P.
- the two-hole apertures 31 and 50 and the optical path dividing lenses 51 and 52 are illustrated so as to divide the optical path vertically in the drawing. In the direction perpendicular to). However, since it is difficult to illustrate the state in which the light beam is split in the left-right direction in the drawings, in FIGS. 1 and 2, the two-hole apertures 31 and 50 and the optical path splitting lenses 51 and 52 are perpendicular to the paper surface for convenience. The figure when viewed from the direction of is shown.
- the fundus camera configured as described above, since the visible cut infrared transmission filter 13 is inserted in the illumination optical path, when the halogen lamp 11 is turned on, the fundus is illuminated with infrared light.
- the ring slit 16 ', the single aperture diaphragm 31', and the imaging lens 55 for monocular photography are inserted into the optical path, and the imaging mask 43, the double aperture diaphragm 50, and the like are detached from the optical path.
- the fundus image illuminated with the infrared light is imaged at the position of the photographing mask 42 by the objective lens 22, the focus lens 32, and the imaging lens 33, passes through the infrared transmission visible reflection mirror 36, and is formed by the imaging lens 37. Since the image is re-imaged on the imaging surface of the image sensor 40 as a moving image, the fundus image is displayed on the monitor 41 as a black and white image, and the examiner can observe the fundus image through the monitor 41 with a non-mydriatic pupil.
- the imaging magnification on the image sensor 40 is set lower than the imaging magnification by the second imaging optical system, a wide-angle fundus image can be observed, and alignment at the time of non-mydriatic pupil Can be easily.
- the focus dot from the light source 30 it is possible to focus on the fundus of the eye to be examined.
- the examiner performs alignment by observing the image of the anterior ocular segment 1b of the eye 1 to be examined with the monitor 41.
- the shutter switch 46 When the alignment is completed, the shutter switch 46 is operated, the shutter operation signal is input to the image sensor 53 and the memory 54, the image sensor 53 is activated, and the fundus still image capturing operation is started. Since a signal for instructing light emission is transmitted from the image pickup device 53 to the strobe 14 in synchronization with the operation signal, the strobe 14 emits light. The fundus illuminated by the flash 14 is imaged as a still image by the image sensor 53.
- the ring slit 16, the single hole stop 31 ′, and the imaging lens 55 are replaced with the ring slit 16, the two hole stop 31, and the optical path splitting lenses 51 and 52 into the optical path.
- a photographing mask 43 is inserted into the optical path.
- the light beam from the fundus 1a is divided into right and left by the two-hole aperture 31, and is imaged at the position of the photographing mask 43 as a pair of left and right intermediate images with parallax by the focus lens 32 and the imaging lens 33.
- An image is observed by the monitor 41.
- the pair of fundus images formed at the position of the photographing mask 43 are displayed on the monitor 41 as a single fundus image, so that the pair of fundus images are shifted and doubled.
- the focus lens 32 is adjusted to focus again so that the double image is eliminated.
- the region 43b of the imaging mask 43 is a region that transmits only infrared light, and the rectangular opening 43a transmits the light flux in all bands, so that the image is captured by the image sensor 40 and displayed on the monitor 41.
- a rectangular outline 43c corresponding to the rectangular opening 43a is displayed on the image, and the examiner confirms the extent of the shooting range during stereo shooting. be able to.
- the pair of left and right fundus images with parallax imaged at the position of the photographing mask 43 pass through the relay lens 47 and the two-hole aperture 50 and enter the optical path dividing lenses 51 and 52.
- the relay lens 47 is disposed so as to connect the exit pupil image of the first imaging lens 33 to the optical path dividing lenses 51 and 52. That is, the optical path splitting lenses 51 and 52 are arranged at a position almost conjugate with the anterior eye portion 1b to be examined via the relay lens 47, and an image of one hole 31a of the two-hole aperture 31 is an optical path splitting lens. The image of the other hole 31 b is formed in the vicinity of the optical path dividing lens 51. Therefore, as shown in FIG. 2, the centers 31c and 31d of the holes 31a and 31b of the two-hole aperture and the lens centers 52a and 51a of the optical path splitting lenses 52 and 51 are in an imaging relationship (conjugate relationship).
- the light beams 51b and 52b passing through the lens centers 51a and 52a of the optical path splitting lenses 51 and 52 through the center of the photographing mask 43 reach the points 51c and 52c on the imaging surface 53a.
- the distance between the arrival points 51c and 52c is set to a length equal to a distance approximately half of the entire length L of the imaging surface 53a along the direction orthogonal to the imaging optical axis 48 (vertical direction in FIG. 2).
- the fundus image formed by the optical path dividing lens 51 with the fundus image of FIG. 5 is not superimposed on the upper half of the imaging surface 53a, and the fundus image formed by the optical path dividing lens 52 is not superimposed on the lower half of the imaging surface 53a. Therefore, it is possible to acquire a fundus image for stereoscopic viewing that is separated and imaged and effectively uses the entire imaging surface 53a.
- the left image with parallax (lower side in FIG. 2) is connected to the left side (lower side) of the imaging surface, and the right image is connected to the right side (upper side).
- a parallax image in which the left-right relationship is matched can be acquired without the need for a prism for switching the left and right as in the prior art.
- the fundus image with a pair of left and right parallax separated by the optical path splitting lenses 51 and 52 is obtained.
- the eyepiece 62 can be observed through the mirror 61.
- the observed fundus image is a separated pair of left and right fundus images 1c and 1d as shown by B in the upper right of FIG. 1, and the examiner can stereoscopically view the fundus. .
- the shutter switch 46 When imaging with the image sensor 53, the shutter switch 46 is operated. In synchronization with this operation, the return mirror 60 is removed from the optical path, and the strobe 14 emits light.
- the fundus images 1c and 1d having a pair of left and right parallax separated without overlapping as shown by B in FIG.
- the pair of fundus images captured in this way are stored in the memory 54 and can be read later and stereoscopically viewed by the stereoscopic device.
- the pair of optical path splitting lenses 51 and 52 can be switched to another pair of optical path splitting lenses 51 'and 52' having different magnifications. In this case, a pair of fundus images with reduced or enlarged parallax are captured.
- the photographic mask 43 is switched to the photographic mask 43 ′ having an opening enlarged or reduced according to the magnification.
- the two-hole aperture 50 arranged close to the optical path dividing lenses 51 and 52 is not necessarily required because the lens barrel of each lens 51 and 52 can be used.
- the single-hole aperture 31 ′ and the photographing mask 42 are inserted into the optical path, the focusing lens 32 is moved, and the imaging surfaces of the CCD 40 and the CCD 53 are in a conjugate position. Focus adjustment is performed so that a clear fundus image is formed on a certain photomask 42. If the shutter switch 46 is operated in this state, a sharp and clear fundus image is captured by the CCD 53.
- the holes 31a and 31b of the two-hole aperture 31 are displaced from the imaging optical axis 48 as shown in the lower part of FIG. Therefore, the fundus conjugate plane R is displaced from the imaging mask 43 and also from the imaging surface of the CCD 53, so that the fundus cannot be captured clearly.
- the fundus 1a of the eye to be examined is photographed from the optical path passing through the center of the pupil 1b of the eye 1 to be examined. Therefore, the chromatic aberration due to the crystalline lens 2 of the eye 1 is basically minute. It is.
- the eye fundus 1 a to be examined is photographed from the optical path deviated from the center of the pupil 1 b of the eye 1 to be examined, so that the prism action acts on the crystalline lens 2.
- the prism 3 color-separates the light beam from the light beam 3a including red to the light beam 3b including purple, and thus chromatic aberration occurs due to the prism action of the crystalline lens 2 during stereo shooting.
- the cemented lens 70 as an optical element in which the lenses 70a and 70b for correcting the optical path length deviation and chromatic aberration are cemented is used as the optical path dividing lenses 51 and 52 at the time of stereo shooting. And inserted between the CCD 53. This state is also shown in FIG. 8 as a simplified optical diagram.
- the cemented lens 70 corrects the optical path length and moves the fundus conjugate plane R shown in FIG. 5 to the imaging plane of the CCDs 40 and 53 during stereo shooting, the CCD 53 is in focus even when switching from monocular shooting to stereo shooting. A pair of fundus images for stereoscopic viewing can be taken.
- the chromatic aberration is corrected by the cemented lens 70, it is possible to acquire a stereoscopic fundus image with good image quality with little chromatic aberration.
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Abstract
Description
被検眼眼底の画像を電子撮像手段で撮影する眼科撮影装置であって、
被検眼の前眼部共役位置に配置され、被検眼眼底からの反射光束を視差のある左右一対の光束に分割するための2孔絞りと、
前記分割された光束から左右一対の眼底像を中間像として結像する第1の結像光学系と、
前記中間像として結像された一対の眼底像をそれぞれ左右に分離して電子撮像手段の撮像面に再結像する第2の結像光学系と、
を有することを特徴とする。
21 穴あき全反射ミラー
22 対物レンズ
31 2孔絞り
31’ 単孔絞り
32 フォーカスレンズ
33 結像レンズ
40 撮像素子
42、43 撮影マスク
46 シャッタスイッチ
47 リレーレンズ
50 2孔絞り
51、52 光路分割レンズ
53 撮像素子
55 単眼撮影用結像レンズ
62 接眼レンズ
70 光路長及び色収差補正レンズ
Claims (12)
- 被検眼眼底の画像を電子撮像手段で撮影する眼科撮影装置であって、
被検眼の前眼部共役位置に配置され、被検眼眼底からの反射光束を視差のある左右一対の光束に分割するための2孔絞りと、
前記分割された光束から左右一対の眼底像を中間像として結像する第1の結像光学系と、
前記中間像として結像された一対の眼底像をそれぞれ左右に分離して電子撮像手段の撮像面に再結像する第2の結像光学系と、
を有することを特徴とする眼科撮影装置。 - 前記第2の結像光学系は、前記2孔絞りとほぼ共役な位置に配置され、中間像として結像された一対の眼底像からの光路を分割し、該一対の眼底像を電子撮像手段の撮像面に分離して再結像する一対の光路分割レンズから構成されることを特徴とする請求項1に記載の眼科撮影装置。
- 前記一対の光路分割レンズと中間像が形成される面の間に、第1の結像光学系の射出瞳像を第2の結像光学系に結ぶためのレンズが配置されることを特徴とする請求項1又は2に記載の眼科撮影装置。
- 前記中間像の中心を経て前記一対の光路分割レンズのレンズ中心を通過する各光線が撮像面上に到達する2点間の距離が、撮影光軸に直交する方向に沿った撮像面の全長のほぼ半分に等しいことを特徴とする請求項2又は3に記載の眼科撮影装置。
- 前記一対の光路分割レンズの各物体側開口位置に、各開口に合わせて第2の2孔絞りが配置されることを特徴とする請求項2から4のいずれか1項に記載の眼科撮影装置。
- 前記第1の結像光学系は、被検眼視度に応じて光軸方向に移動されピントの合った中間像を形成するためのレンズを有することを特徴とする請求項1から5のいずれか1項に記載の眼科撮影装置。
- 前記第2の結像光学系と電子撮像手段の間にリターンミラーが設けられ、リターンミラーが光路に挿入されたときは、眼底像が双眼観察手段に導かれ、リターンミラーが光路から離脱されたときは、眼底像が電子撮像手段に導かれることを特徴とする請求項1から6のいずれか1項に記載の眼科撮影装置。
- 前記中間像が結像される位置と第2の結像光学系との間に光路分割手段が設けられ、該分割手段で分割された光路には観察用の動画撮影手段が設けられ、動画撮影手段への結像倍率は前記第2の結像光学系による結像倍率よりも低倍率であることを特徴とする請求項1から7のいずれか1項に記載の眼科撮影装置。
- 前記中間像が結像される面に、眼底の撮影範囲を定める撮影マスクが配置されることを特徴とする請求項1から8のいずれか1項に記載の眼科撮影装置。
- 前記一対の光路分割レンズは、倍率の異なる他の一対の光路分割レンズに切り換え可能で、該倍率の切り換えに連動して撮影マスクの開口形状が変化することを特徴とする請求項9に記載の眼科撮影装置。
- 前記2孔絞りから単孔絞りに切り換え、それに連動して一対の光路分割レンズを単一の結像レンズに切り換えてステレオ撮影と単眼撮影を可能にしたことを特徴とする請求項1から10のいずれか1項に記載の眼科撮影装置。
- 単眼撮影からステレオ撮影に切り換えられたとき、前記一対の光路分割レンズと電子撮像手段間に、光路長と色収差を補正する光学素子が挿入されることを特徴とする請求項11に記載の眼科撮影装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09839235.0A EP2384693B1 (en) | 2009-01-30 | 2009-08-26 | Ophthalmologic photographing device |
AU2009338956A AU2009338956B2 (en) | 2009-01-30 | 2009-08-26 | Ophthalmologic photographing device |
CN200980154638.8A CN102281812B (zh) | 2009-01-30 | 2009-08-26 | 眼科摄影装置 |
US13/138,215 US9072467B2 (en) | 2009-01-30 | 2009-08-26 | Ophthalmologic photography apparatus |
JP2010548362A JP5386512B2 (ja) | 2009-01-30 | 2009-08-26 | 眼科撮影装置 |
HK12104849.1A HK1164086A1 (en) | 2009-01-30 | 2012-05-17 | Ophthalmologic photographing device |
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JP2009-019888 | 2009-01-30 | ||
JP2009019888 | 2009-01-30 |
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PCT/JP2009/064823 WO2010087046A1 (ja) | 2009-01-30 | 2009-08-26 | 眼科撮影装置 |
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US (1) | US9072467B2 (ja) |
EP (1) | EP2384693B1 (ja) |
JP (1) | JP5386512B2 (ja) |
CN (1) | CN102281812B (ja) |
AU (1) | AU2009338956B2 (ja) |
HK (1) | HK1164086A1 (ja) |
WO (1) | WO2010087046A1 (ja) |
Cited By (2)
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JP2018068732A (ja) * | 2016-10-31 | 2018-05-10 | 株式会社トプコン | 眼科装置 |
WO2020241205A1 (ja) * | 2019-05-31 | 2020-12-03 | 富士フイルム株式会社 | 光分離装置及び撮像装置 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5227368B2 (ja) * | 2010-06-02 | 2013-07-03 | パナソニック株式会社 | 3次元撮像装置 |
JP5507362B2 (ja) | 2010-06-30 | 2014-05-28 | パナソニック株式会社 | 3次元撮像装置および光透過板 |
JP2014079517A (ja) * | 2012-10-18 | 2014-05-08 | Canon Inc | 眼科装置 |
CN104257347B (zh) * | 2014-10-16 | 2016-01-20 | 深圳市斯尔顿科技有限公司 | 人眼工作位置对准的眼底相机光学系统及位置对准方法 |
JP6592249B2 (ja) * | 2015-01-30 | 2019-10-16 | 興和株式会社 | 眼底撮影装置 |
KR20170076517A (ko) * | 2015-12-24 | 2017-07-04 | 주식회사 연시스템즈 | 단안식 입체 카메라 |
JP6844949B2 (ja) * | 2016-02-15 | 2021-03-17 | 株式会社トプコン | 眼科装置 |
CN106510616B (zh) * | 2016-12-14 | 2019-05-28 | 中国科学院苏州生物医学工程技术研究所 | 干眼症全自动检测仪 |
US10441166B2 (en) * | 2017-02-08 | 2019-10-15 | Optomed Oy | Apparatus and method for non-contact examination of eye |
JP7293224B2 (ja) * | 2017-12-12 | 2023-06-19 | アルコン インコーポレイティド | 空間ビーム分離を用いるマルチビーム分割 |
CN111820866B (zh) * | 2020-07-31 | 2023-07-18 | 嘉兴中润光学科技股份有限公司 | 一种眼底照明系统 |
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- 2009-08-26 US US13/138,215 patent/US9072467B2/en not_active Expired - Fee Related
- 2009-08-26 AU AU2009338956A patent/AU2009338956B2/en not_active Ceased
- 2009-08-26 JP JP2010548362A patent/JP5386512B2/ja not_active Expired - Fee Related
- 2009-08-26 WO PCT/JP2009/064823 patent/WO2010087046A1/ja active Application Filing
- 2009-08-26 EP EP09839235.0A patent/EP2384693B1/en not_active Not-in-force
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WO2020241205A1 (ja) * | 2019-05-31 | 2020-12-03 | 富士フイルム株式会社 | 光分離装置及び撮像装置 |
Also Published As
Publication number | Publication date |
---|---|
US9072467B2 (en) | 2015-07-07 |
EP2384693B1 (en) | 2019-04-17 |
JPWO2010087046A1 (ja) | 2012-07-26 |
AU2009338956B2 (en) | 2014-11-06 |
AU2009338956A1 (en) | 2011-09-08 |
CN102281812B (zh) | 2014-05-07 |
US20110273538A1 (en) | 2011-11-10 |
HK1164086A1 (en) | 2012-09-21 |
EP2384693A1 (en) | 2011-11-09 |
CN102281812A (zh) | 2011-12-14 |
JP5386512B2 (ja) | 2014-01-15 |
EP2384693A4 (en) | 2014-04-23 |
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