JP2938483B2 - Stereo microscope for ophthalmic surgery - Google Patents
Stereo microscope for ophthalmic surgeryInfo
- Publication number
- JP2938483B2 JP2938483B2 JP1325657A JP32565789A JP2938483B2 JP 2938483 B2 JP2938483 B2 JP 2938483B2 JP 1325657 A JP1325657 A JP 1325657A JP 32565789 A JP32565789 A JP 32565789A JP 2938483 B2 JP2938483 B2 JP 2938483B2
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- Japan
- Prior art keywords
- illumination
- eye
- optical systems
- optical system
- observation
- Prior art date
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Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、被検眼に対向する対物レンズと、この対
物レンズを通して前記被検眼を立体視するための第1,第
２観察光学系とを備えている実体顕微鏡に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an objective lens facing an eye to be inspected, and first and second observation optical systems for stereoscopically viewing the eye to be inspected through the objective lens. It relates to the stereo microscope provided.
（従来の技術） 従来から、例えば白内障等の手術に使用する実体顕微
鏡が知られている。(Prior Art) Conventionally, a stereomicroscope used for an operation such as cataract is known.
かかる実体顕微鏡は、第９図に示すように、被検眼１
に対向する対物レンズ２と、この対物レンズ２を通して
前記被検眼１を立体視するための第1,第２観察光学系3,
4と、被検眼１を照明する照明光学系５とを備えてい
る。As shown in FIG.
An objective lens 2 opposed to the first and second observation optical systems 3 and 3 for stereoscopically viewing the subject's eye 1 through the objective lens 2
4 and an illumination optical system 5 for illuminating the eye 1 to be inspected.
第1,第２観察光学系3,4はズームレンズ6a,6bと結像レ
ンズ7a,7bと接眼レンズ8a,8bとからなり、照明光学系５
は照明光源Ｋとコンデンサレンズ９とミラー10とからな
る。The first and second observation optical systems 3 and 4 include zoom lenses 6a and 6b, imaging lenses 7a and 7b, and eyepieces 8a and 8b.
Is composed of an illumination light source K, a condenser lens 9 and a mirror 10.
そして、照明光学系５によって被検眼１を照明し、ズ
ームレンズ6a,6bの操作により所定の倍率で被検眼１を
立体視することができる。Then, the subject's eye 1 is illuminated by the illumination optical system 5, and the subject's eye 1 can be stereoscopically viewed at a predetermined magnification by operating the zoom lenses 6a and 6b.
ところで、白内障の手術は水晶体の前のうを切開して
濁りを取り出していくものであるが、その濁りが少なく
なってきた場合には、その濁りが見やすいように眼底か
らの反射光を利用してその濁りを照明するようにしてい
る。By the way, in cataract surgery, incision is made in the front of the lens to remove turbidity. To illuminate the turbidity.
（発明が解決しようとする課題） ところが、第10図に示すように、照明光学系105の光
軸105aと観察光学系104の光軸104aとが異なる場合、照
明光学系105による眼底1a上の照明領域T1は、第11図に
示すように、観察光学系104のＯ点からずれている。そ
して、照明領域T1で反射する反射光束は照明光学系105
へと向かう。このため、観察光学系104から水晶体1bを
見た場合、観察光学系104に入射する眼底1aからの反射
光は殆どなく、第12図に示すように、瞳孔領域1cは暗く
観察される。(Problems to be Solved by the Invention) However, as shown in FIG. 10, when the optical axis 105a of the illumination optical system 105 and the optical axis 104a of the observation optical system 104 are different from each other, illumination area T 1, as shown in FIG. 11, is displaced from the point O of the observation optical system 104. The reflected light flux reflected by the illumination area T 1 is the illumination optical system 105
Head to. Therefore, when the lens 1b is viewed from the observation optical system 104, there is almost no reflected light from the fundus 1a incident on the observation optical system 104, and the pupil region 1c is observed dark as shown in FIG.
したがって、水晶体1bに例えば濁りA,Bがある場合、
その濁りA,Bは眼底からの反射光により照明されず、濁
りA,Bの観察はしずらいものとなる。なお、第11図にお
いて、U,Vは眼底1aからの反射によって濁りA,Bに収束す
る光束であり、また、第12図の1dは虹彩である。Therefore, for example, when the lens 1b has turbidity A and B,
The turbidity A and B are not illuminated by the reflected light from the fundus, and it is difficult to observe the turbidity A and B. Note that in FIG. 11, U and V are luminous fluxes that converge on turbidity A and B due to reflection from the fundus 1a, and 1d in FIG. 12 is an iris.
照明光学系105を観察光学系104に近づけていき、第13
図に示すように、照明光の照明領域T1が光束Ｖを包含す
るＯ点の近傍に達すると、第13図における照明領域T1で
反射する反射光束のうち、Ｖを含む周辺の光束が観察光
学系104に入射するようになる。このため、観察光学系1
04から見る瞳孔領域1cは、第14図に示すように、濁りＡ
を含む領域Ｇは暗いが、濁りＢを含む領域Ｑは明るくな
る。Move the illumination optical system 105 closer to the observation optical system 104,
As shown, when the illumination area T 1 of the illumination light reaches the vicinity of including O point a light beam V, of the reflected light beam reflected by the illumination area T 1 in FIG. 13, the light beam around including V The light enters the observation optical system 104. Therefore, the observation optical system 1
The pupil area 1c viewed from 04 is, as shown in FIG.
Is dark, but the area Q containing turbidity B is bright.
そして、照明光学系105の光軸105aと観察光学系104の
光軸104aとを一致させると、第15図に示す照明領域T1で
反射する反射光束の多くが観察光学系104に入射する。
このため、観察光学系104から見る瞳孔領域1cは、第16
図に示すように、照明領域T1からの反射光によって均一
な明るさとなる。When the match with the optical axis 104a of the optical axis 105a and the observation optical system 104 of the illumination optical system 105, many of the reflected light beam reflected by the illumination area T 1 shown in FIG. 15 is incident on the observation optical system 104.
For this reason, the pupil region 1c viewed from the observation optical system 104 is
As shown, a uniform brightness by reflected light from the illumination area T 1.
したがって、第９図に示す実体顕微鏡であっては、第
17図に示すように、対物レンズ２上において照明光学系
５の光路5aと、第1,第２観察光学系3,4の光路3s,4sとが
異なるので、観察光学系3,4の接眼レンズ8a,8bから被検
眼１を覗いた場合、瞳孔領1cは均一の明るさとならず、
第18図に示すように、左視野Ｌでは、反転のため瞳孔領
域1cの左側領域P1が明るくなり、右側領域P2で暗くな
る。右視野Ｒでは、第18図に示すように、反転のための
瞳孔領域1cの右側領域P1が明るくなり、左側領域P2が暗
くなる。Therefore, in the stereomicroscope shown in FIG.
As shown in FIG. 17, since the optical path 5a of the illumination optical system 5 and the optical paths 3s and 4s of the first and second observation optical systems 3 and 4 are different on the objective lens 2, the eyepieces of the observation optical systems 3 and 4 are different. When the eye to be examined 1 is looked through the lenses 8a and 8b, the pupil region 1c does not have uniform brightness,
As shown in FIG. 18, the left view L, left region P 1 of the pupil region 1c becomes bright because of the inversion, darken in the right region P 2. In right view R, as shown in FIG. 18, the right side region P 1 of the pupil region 1c becomes brighter for inversion, left region P 2 becomes dark.
このように、左視野Ｌと右視野Ｒとで瞳孔領域1cの明
るくなる部分P1と暗くなる部分P2との位置が異なる。こ
のため、両眼の融像が困難なものとなり、手術は非常に
行いにくくなるという問題があった。Thus, the position of the partial P 2 darkening the part P 1 which becomes bright pupil region 1c between the left view L and right view R are different. For this reason, fusion of both eyes becomes difficult, and there is a problem that surgery becomes very difficult.
また、第９図の破線で示すようにハーフミラーＨを設
置して、第19図に示すように、第1,第２観察光路3a,4a
の外Haから被検眼１を照明するようにしたものがある
が、これも、上記と同様に、瞳孔領は均一の明るさとな
らず、左視野Ｌと右視野Ｒとで瞳孔領域1cの明るくなる
部分P1と暗くなる部分P2とが第20図に示すように異な
り、両眼の融像が困難なものとなり、手術は行いにくく
なるという問題があった。Further, the half mirror H is installed as shown by the broken line in FIG. 9, and as shown in FIG. 19, the first and second observation optical paths 3a and 4a
In the same manner as described above, the pupil region is not uniformly bright, but the pupil region 1c is brightened in the left visual field L and the right visual field R. and portion P 2 darkening the part P 1 comprising differs as shown in FIG. 20, fusion of the two eyes is it difficult surgery has been a problem that it becomes difficult to perform.
（発明の目的） この発明は、上記問題点に鑑みてなされたもので、そ
の目的とするところは、瞳孔領域を均一な明るさにして
左視野と右視野とで観察することのできる眼科手術用実
体顕微鏡を提供することにある。(Object of the Invention) The present invention has been made in view of the above problems, and an object of the present invention is to provide an ophthalmologic surgery capable of observing a left pupil region and a right sight region with uniform brightness of a pupil region. An object of the present invention is to provide a stereo microscope.
（課題を解決するための手段） この発明は、上記の目的を達成するため、被検眼に対
向する対物レンズと、この対物レンズを通して前記被検
眼を立体視するための第1,第２観察光学系と、この第1,
第２観察光学系の光路に配置されたハーフミラーを介し
て前記被検眼の眼底を照明する第1,第２照明光学系とを
備えている眼科手術用実体顕微鏡であって、 投影レンズと、この投影レンズに対して被検眼の瞳孔
と共役関係にある絞りとを第1,第２照明光学系にそれぞ
れ設け、 前記ハーフミラーの後方に偏向素子をそれぞれ配置し
て、各偏向素子と第1,第２照明光学系の各光源との間の
第1,第２照明光学系の光軸を平行にさせるとともに、第
1,第２観察光学系の光軸を中心にして被検眼の眼底を照
明するようにしたことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides an objective lens facing an eye to be inspected, and first and second observation optics for stereoscopically viewing the eye through the objective lens. System and this first
A stereomicroscope for ophthalmologic surgery comprising first and second illumination optical systems for illuminating the fundus of the eye through a half mirror disposed on an optical path of a second observation optical system, comprising: a projection lens; A stop having a conjugate relationship with the pupil of the eye to be examined is provided in each of the first and second illumination optical systems with respect to the projection lens, and a deflecting element is arranged behind the half mirror, so that each deflecting element and the first The optical axes of the first and second illumination optical systems between the light sources of the second illumination optical system are made parallel to each other.
1. The fundus of the subject's eye is illuminated around the optical axis of the second observation optical system.
（作 用） この発明によれば、第1,第２照明光学系により、第1,
第２観察光学系の光軸を中心にして被検眼を照明する。(Operation) According to the present invention, the first and second illumination optical systems provide the first and second illumination optical systems.
The subject's eye is illuminated around the optical axis of the second observation optical system.
（実施例） 以下、この発明の実施例を図面に基づいて説明する。Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図および第２図は、例えば白内障等の手術に使用
する実体顕微鏡の光学系の配置を示した概略配置図であ
り、この実体顕微鏡は、被検眼22に対向する対物レンズ
21と、被検眼22を立体視する第1,第２観察光学系23,24
と、被検眼22を照明する照明系25とを備えている。FIG. 1 and FIG. 2 are schematic layout diagrams showing the layout of an optical system of a stereo microscope used for, for example, cataract surgery. This stereo microscope has an objective lens facing the eye 22 to be examined.
21 and first and second observation optical systems 23 and 24 for stereoscopically viewing the subject's eye 22
And an illumination system 25 that illuminates the eye 22 to be inspected.
第1,第２観察光学系23,24は観察ズームレンズ30,31と
結像レンズ32,33と接眼レンズ34,35とからなる。The first and second observation optical systems 23 and 24 include observation zoom lenses 30 and 31, imaging lenses 32 and 33, and eyepieces 34 and 35.
照明系25は、ハーフミラー導入部材Ｍと、投影レンズ
50a,50bと、絞り54a,54bと、コンデンサレンズ51a,51b
と、ライトガイド52と、照明ランプ53とからなる。ライ
トガイド52は照明ランプ53から射出された光をコンデン
サレンズ51a,51bに向けて射出するガイド管52a,52bを有
しており、ガイド管52a,52bから射出される光の強さは
同一となるように設定されている。絞り54a,54bは被検
眼22の瞳孔22aと共役関係にある。The illumination system 25 includes a half mirror introducing member M, a projection lens
50a, 50b, diaphragms 54a, 54b, condenser lenses 51a, 51b
, A light guide 52 and an illumination lamp 53. The light guide 52 has guide tubes 52a and 52b for emitting light emitted from the illumination lamp 53 toward the condenser lenses 51a and 51b, and the intensity of light emitted from the guide tubes 52a and 52b is the same. It is set to be. The apertures 54a and 54b are in a conjugate relationship with the pupil 22a of the subject's eye 22.
そして、投影レンズ50aと、絞り54aと、コンデンサレ
ンズ51aと、ライトガイド管52aと、照明ランプ53とで第
１照明光学系60が構成されている。また、投影レンズ50
bと、絞り54bと、コンデンサレンズ51bと、ライトガイ
ド管52bと、照明ランプ53とで第２照明光学系61が構成
されている。第1,第２照明光学系60,61の光軸60a,61aは
ハーフミラーＭと被検眼22との間において第1,第２観察
光学系の光軸23a,24aと共通とされている。The projection lens 50a, the diaphragm 54a, the condenser lens 51a, the light guide tube 52a, and the illumination lamp 53 constitute a first illumination optical system 60. Also, the projection lens 50
A second illumination optical system 61 is configured by b, the diaphragm 54b, the condenser lens 51b, the light guide tube 52b, and the illumination lamp 53. The optical axes 60a and 61a of the first and second illumination optical systems 60 and 61 are common to the optical axes 23a and 24a of the first and second observation optical systems between the half mirror M and the eye 22 to be inspected.
したがって、照明ランプ53から光が射出されると、そ
の光の一部はライトガイド52のガイド管52aを通ってコ
ンデンサレンズ51aに向けて射出される。この射出され
た光は、コンデンサレンズ51a、絞り54a、投影レンズ50
a、ハーフミラーＭを介して被検眼22を照明する。ま
た、絞り54aはリレーレンズ50aに対して瞳孔と共役関係
にあるので、絞り54aによる絞り像（図示せず）が瞳孔
に形成される。Therefore, when light is emitted from the illumination lamp 53, part of the light is emitted toward the condenser lens 51a through the guide tube 52a of the light guide 52. The emitted light is supplied to the condenser lens 51a, the aperture 54a, and the projection lens 50.
a, The subject's eye 22 is illuminated via the half mirror M. Further, since the stop 54a has a conjugate relationship with the pupil with respect to the relay lens 50a, a stop image (not shown) by the stop 54a is formed in the pupil.
他方、照明ランプ53から射出された光の他の一部はラ
イトガイド52のガイド管52bを通ってコンデンサレンズ5
1bに向けて射出される。この射出された光は、コンデン
サレンズ51b、絞り54b、投影レンズ50b、ハーフミラー
Ｍを介して被検眼22を照明する。また、絞り54bはリレ
ーレンズ50aに対して瞳孔と共役関係にあるので、絞り5
4bによる絞り像（図示せず）が瞳孔に形成される。On the other hand, another part of the light emitted from the illumination lamp 53 passes through the guide tube 52b of the light guide 52 and the condenser lens 5b.
Injected towards 1b. The emitted light illuminates the eye 22 through the condenser lens 51b, the aperture 54b, the projection lens 50b, and the half mirror M. Also, since the stop 54b has a conjugate relationship with the pupil with respect to the relay lens 50a, the stop 5b
An aperture image (not shown) by 4b is formed in the pupil.
被検眼22を照明した照明光は被検眼22の水晶体22bを
介して眼底22cに達し、該眼底22cを照明することとな
る。眼底22cで反射した反射光は、水晶体22b、ハーフミ
ラーＭ、対物レンズ21を介して観察光学系23,24に達す
る。The illumination light illuminating the eye 22 reaches the fundus 22c via the crystalline lens 22b of the eye 22 to illuminate the fundus 22c. The light reflected by the fundus 22c reaches the observation optical systems 23 and 24 via the crystalline lens 22b, the half mirror M, and the objective lens 21.
ところで、第1,第２照明光学系60,61の光軸60a,61aの
一部は、第３図に示すように、ハーフミラーＭと被検眼
22との間において第1,第２観察光学系の光軸23a,24aと
共通とされているので、眼底22cは第1,第２観察光学系
の光軸23a,24aを中心にして照明されることとなる。Incidentally, a part of the optical axes 60a and 61a of the first and second illumination optical systems 60 and 61 is, as shown in FIG.
Since it is common to the optical axes 23a and 24a of the first and second observation optical systems, the fundus 22c is illuminated around the optical axes 23a and 24a of the first and second observation optical systems. The Rukoto.
したがって、その照明光の反射光の多くは、水晶体22
b、ハーフミラーＭ、対物レンズ21を介して観察光学系2
3,24に達し、観察光学系23,24から見た瞳孔領域22dは均
一な明るさとなる。Therefore, most of the reflected light of the illumination light
b, observation optical system 2 via half mirror M, objective lens 21
3 and 24, the pupil region 22d viewed from the observation optical systems 23 and 24 has uniform brightness.
すなわち、第４図（ａ）（ｂ）に示すように、観察光
学系23の接眼レンズ34を通して見る左視野Ｌの瞳孔領域
Laは均一な明るさとなり、接眼レンズ35を通して見る右
視野Ｒの瞳孔領域Raも均一な明るさとなる。したがっ
て、左視野Ｌと右視野Ｒの両眼の融像が容易となり、水
晶体の濁り箇所を容易に見つけることができ、白内障の
手術は行い易いものとなる。That is, as shown in FIGS. 4A and 4B, the pupil region of the left visual field L viewed through the eyepiece 34 of the observation optical system 23.
La has uniform brightness, and the pupil region Ra of the right visual field R viewed through the eyepiece 35 also has uniform brightness. Therefore, fusion of both eyes of the left visual field L and the right visual field R is facilitated, a clouded portion of the crystalline lens can be easily found, and cataract surgery can be easily performed.
また、一枚のハーフミラーＭを使用しているので、実
体観察で重要な左右光軸のズレの発生がなく、光学調整
が簡単となり、安価で性能のよい実体顕微鏡を提供する
ことができる。なお、第４図においてLb,Rbは虹彩であ
る。In addition, since one half mirror M is used, there is no shift between the left and right optical axes, which is important in stereoscopic observation, and the optical adjustment is simplified, so that a low-cost, high-performance stereomicroscope can be provided. In FIG. 4, Lb and Rb are irises.
第５図は第２実施例を示したもので、これは、投影レ
ンズ50a,50bとハーフミラーＭとの間に第1,第２照明光
学系60,61の光軸60,61を偏心させる偏向レンズ（偏向素
子）62を設置して、投影レンズ50a,50bとコンデンサレ
ンズ51a,51bとの間の光軸を平行にさせたものである。
これにより、第1,第２観察光学系23,24の光軸23a,24aと
第1,第２照明光学系60,61の光軸60a,61bとの共通化が容
易となる。なお、62aは偏向レンズ62の中央部を遮光し
たものである。FIG. 5 shows a second embodiment, in which the optical axes 60, 61 of the first and second illumination optical systems 60, 61 are decentered between the projection lenses 50a, 50b and the half mirror M. A deflecting lens (deflecting element) 62 is provided to make the optical axes between the projection lenses 50a and 50b and the condenser lenses 51a and 51b parallel.
This facilitates the common use of the optical axes 23a and 24a of the first and second observation optical systems 23 and 24 and the optical axes 60a and 61b of the first and second illumination optical systems 60 and 61. Reference numeral 62a denotes a light shielding part of the central part of the deflecting lens 62.
第６図は第５図の偏向レンズ62の代わりにプリズム6
3,64を使用した第３実施例を示したものである。FIG. 6 shows a prism 6 instead of the deflecting lens 62 of FIG.
This shows a third embodiment using 3,64.
第７図は第４実施例を示したもので、これは、ハーフ
ミラーＭを破線位置まで移動できるようにして、第1,第
２観察光学系とは異なる角度からも被検眼22を照明でき
るようにしたものである。FIG. 7 shows a fourth embodiment, in which the half mirror M can be moved to a position indicated by a broken line so that the eye 22 can be illuminated from an angle different from those of the first and second observation optical systems. It is like that.
ハーフミラーＭは、第８図に示すように、ガイドレー
ル70,71に沿って矢印方向に移動可能となっており、そ
のガイドレール70,71の後部には反射ミラー73が矢印Ｚ
方向に回動できるようになっている。As shown in FIG. 8, the half mirror M is movable in the direction of the arrow along the guide rails 70 and 71, and a reflection mirror 73 is provided at the rear of the guide rails 70 and 71 by the arrow Z.
It can be turned in any direction.
したがって、ハーフミラーＭを第８図に示す破線位置
まで移動させ、反射ミラー73を破線位置まで回動させる
と、照明光は反射ミラー73で反射して第1,第２観察光学
系23,24の光軸23a,24aと異なる角度から被検眼22を照明
し、被検眼22をハーフミラーを介さずに直接観察するこ
とができることとなる。Therefore, when the half mirror M is moved to the position indicated by the broken line in FIG. 8 and the reflection mirror 73 is rotated to the position indicated by the broken line, the illumination light is reflected by the reflection mirror 73 and is reflected by the first and second observation optical systems 23 and 24. The subject's eye 22 can be illuminated from an angle different from the optical axes 23a and 24a, and the subject's eye 22 can be directly observed without using a half mirror.
（発明の効果） この発明によれば、第1,第２観察光学系の光軸を中心
にして被検眼を説明する第1,第２照明光学系を設けたも
のであるから、瞳孔領域を均一な明るさにして左視野と
右視野とで観察することができ、左視野と右視野との両
眼の融像が容易となり、したがって、水晶体の濁り箇所
を容易に見つけることができ、白内障の手術は行い易い
ものとなる。(Effects of the Invention) According to the present invention, the first and second illumination optical systems for explaining the eye to be examined are provided around the optical axes of the first and second observation optical systems. Uniform brightness can be observed in the left and right visual fields, facilitating fusion of both eyes in the left and right visual fields.Therefore, turbid portions of the crystalline lens can be easily found, and cataracts Surgery is easier to perform.
第１図はこの発明に係わる実体顕微鏡の光学系の配置を
示した概略配置図、 第２図は上記実体顕微鏡の光学系の配置を示した側面
図、 第３図は第1,第２照明光学系の配置を示した説明図、 第４図は観察光学系の左視野と右視野の説明図、 第５図は第２実施例の説明図、 第６図は第３実施例の説明図、 第７図は第４実施例の説明図、 第８図はハーフミラーの移動機構を示した説明図、 第９図は従来の実体顕微鏡の光学系の配置を示した説明
図、 第10図は瞳孔領域の明るさを説明するために照明光学系
と観察光学系との関係を示した説明図、 第11図、第13図および第15図は眼底の照明領域を示した
説明図、 第12図、第14図および第16図は観察光学系から見た瞳孔
領域の説明図、 第17図は対物レンズ上における照明光路と観察光路を示
した説明図、 第18図および第20図は左視野の明暗部と右視野の明暗部
を示した説明図、 第19図はハーフミラー上の照明領域を示した説明図であ
る。 21……対物レンズ 22……被検眼 23……第１観察光学系 24……第２観察光学系 60……第１照明光学系 61……第２照明光学系FIG. 1 is a schematic layout diagram showing an arrangement of an optical system of a stereo microscope according to the present invention, FIG. 2 is a side view showing an arrangement of an optical system of the stereo microscope, and FIG. 3 is first and second illuminations. FIG. 4 is an explanatory view showing an arrangement of an optical system, FIG. 4 is an explanatory view of a left visual field and a right visual field of an observation optical system, FIG. 5 is an explanatory view of a second embodiment, and FIG. 6 is an explanatory view of a third embodiment. , FIG. 7 is an explanatory view of the fourth embodiment, FIG. 8 is an explanatory view showing a moving mechanism of a half mirror, FIG. 9 is an explanatory view showing an arrangement of an optical system of a conventional stereomicroscope, FIG. Is an explanatory diagram showing the relationship between the illumination optical system and the observation optical system to explain the brightness of the pupil region, FIG. 11, FIG. 13 and FIG. 15 are explanatory diagrams showing the illumination region of the fundus, 12, 14, and 16 are explanatory views of a pupil region viewed from an observation optical system, and FIG. 17 is an explanatory view showing an illumination optical path and an observation optical path on an objective lens. FIG. 18 and FIG. 20 is an explanatory diagram showing dark portion of the light and dark portions and right view of the left view, FIG. 19 is an explanatory view showing an illumination area on the half mirror. 21 Objective lens 22 Eye 23 to be examined 23 First observation optical system 24 Second observation optical system 60 First illumination optical system 61 Second illumination optical system
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) G02B 19/00 - 21/00 G02B 21/06 - 21/36 A61B 19/00 A61F 9/007 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) G02B 19/00-21/00 G02B 21/06-21/36 A61B 19/00 A61F 9/007
Claims (2)
レンズを通して前記被検眼を立体視するための第1,第２
観察光学系と、この第1,第２観察光学系の光路に配置さ
れたハーフミラーを介して前記被検眼の眼底を照明する
第1,第２照明光学系とを備えている眼科手術用実体顕微
鏡であって、 投影レンズと、この投影レンズに対して被検眼の瞳孔と
共役関係にある絞りとを第1,第２照明光学系にそれぞれ
設け、 前記ハーフミラーの後方に偏向素子をそれぞれ配置し
て、各偏向素子と第1,第２照明光学系の各光源との間の
第1,第２照明光学系の光軸を平行にさせるとともに、第
1,第２観察光学系の光軸を中心にして被検眼の眼底を照
明するようにしたことを特徴とする眼科手術用実体顕微
鏡。An objective lens facing an eye to be inspected, and first and second objective lenses for stereoscopically viewing the eye through the objective lens.
An ophthalmic surgery entity comprising: an observation optical system; and first and second illumination optical systems that illuminate the fundus of the subject's eye via a half mirror disposed in an optical path of the first and second observation optical systems. A microscope, wherein a projection lens and a stop having a conjugate relationship with a pupil of an eye to be examined with respect to the projection lens are provided in the first and second illumination optical systems, respectively, and a deflection element is arranged behind the half mirror. Then, the optical axes of the first and second illumination optical systems between each deflection element and each light source of the first and second illumination optical systems are made parallel to each other.
1. A stereomicroscope for ophthalmologic surgery, wherein the fundus of an eye to be examined is illuminated around the optical axis of a second observation optical system.
学系外に設け、前記対物レンズの下方に、前記第1,第２
照明光学系の照明光束を第1,第２観察光学系の光路に導
入させる導入部材を設えたことを特徴とする請求項１の
眼科手術用実体顕微鏡。2. The first and second illumination optical systems are provided outside the first and second observation optical systems, and the first and second illumination optical systems are provided below the objective lens.
2. The stereomicroscope for ophthalmic surgery according to claim 1, further comprising an introduction member for introducing an illumination light beam of the illumination optical system into the optical paths of the first and second observation optical systems.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1325657A JP2938483B2 (en) | 1989-12-14 | 1989-12-14 | Stereo microscope for ophthalmic surgery |
| US07/973,550 US5270747A (en) | 1989-12-14 | 1992-11-09 | Stereomicroscope with first and second illuminating systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1325657A JP2938483B2 (en) | 1989-12-14 | 1989-12-14 | Stereo microscope for ophthalmic surgery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03185415A JPH03185415A (en) | 1991-08-13 |
| JP2938483B2 true JP2938483B2 (en) | 1999-08-23 |
Family
ID=18179266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1325657A Expired - Fee Related JP2938483B2 (en) | 1989-12-14 | 1989-12-14 | Stereo microscope for ophthalmic surgery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2938483B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009297073A (en) * | 2008-06-10 | 2009-12-24 | Topcon Corp | Surgical microscope |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08164155A (en) * | 1994-12-14 | 1996-06-25 | Nikon Corp | Illuminator for ophthalmology |
| JP3631302B2 (en) * | 1995-10-11 | 2005-03-23 | オリンパス株式会社 | Stereo microscope |
| DE10144062B4 (en) * | 2001-09-07 | 2010-05-27 | Leica Microsystems Ag | Microscope with a lighting reflection |
| JP2004361744A (en) * | 2003-06-05 | 2004-12-24 | Olympus Corp | Coaxial incident-light type lighting device for stereoscopic microscope |
| JP2009178478A (en) * | 2008-02-01 | 2009-08-13 | Topcon Corp | Microscope for surgery |
-
1989
- 1989-12-14 JP JP1325657A patent/JP2938483B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009297073A (en) * | 2008-06-10 | 2009-12-24 | Topcon Corp | Surgical microscope |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03185415A (en) | 1991-08-13 |
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