JPS6343443Y2 - - Google Patents
Info
- Publication number
- JPS6343443Y2 JPS6343443Y2 JP6240284U JP6240284U JPS6343443Y2 JP S6343443 Y2 JPS6343443 Y2 JP S6343443Y2 JP 6240284 U JP6240284 U JP 6240284U JP 6240284 U JP6240284 U JP 6240284U JP S6343443 Y2 JPS6343443 Y2 JP S6343443Y2
- Authority
- JP
- Japan
- Prior art keywords
- eyepiece
- objective lens
- imaging
- prisms
- prism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 17
- 238000003384 imaging method Methods 0.000 description 12
- 230000004075 alteration Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Microscoopes, Condenser (AREA)
Description
【考案の詳細な説明】
本考案は、特に眼科用スリツトランプの観察光
学系に適用でき、左右の光路内に平行光束部と整
像プリズムを有する実体顕微鏡に関するものであ
る。[Detailed Description of the Invention] The present invention is particularly applicable to an observation optical system of an ophthalmic slit lamp, and relates to a stereomicroscope having a parallel light beam section and an imaging prism in the left and right optical paths.
従来、この種の実体顕微鏡としては、例えば実
公昭58−19530号公報等に提案されているように、
接眼レンズの外側にくさびプリズムを配置したも
のが知られているが、この方式のものはアイポイ
ントつまり被検眼の瞳位置がくさびプリズムに近
くなり過ぎて見難いという欠点があり、また色収
差が発生する等の問題がある。 Conventionally, this type of stereomicroscope has been proposed, for example, in Japanese Utility Model Publication No. 1983-19530.
It is known that a wedge prism is placed outside the eyepiece, but this method has the disadvantage that the eye point, that is, the pupil position of the subject's eye, is too close to the wedge prism, making it difficult to see, and it also causes chromatic aberration. There are problems such as
本考案の目的は、左右の光路内に平行光束部を
有し、左右の光路内に輻輳を設ける調節手段を構
ずることによつて、極めて見易く、かつ色収差等
の少ない実体顕微鏡を提供することにある。 The purpose of the present invention is to provide a stereoscopic microscope that is extremely easy to see and has little chromatic aberration, etc., by having parallel light beam sections in the left and right optical paths, and by providing adjustment means for providing convergence in the left and right optical paths. It is in.
本考案を図示の実施例に基づいて詳細に説明す
る。 The present invention will be explained in detail based on illustrated embodiments.
第１図は本考案を眼科用実体顕微鏡に使用した
実施例を示し、Ｓは被検眼、EL，ERは観察者の
左眼と右眼を表わしている。そして、その左右の
光路には、共通の対物レンズ１に続いてそれぞれ
結像レンズ２Ｌ，２Ｒ、整像プリズム３Ｌと３
Ｒ、４Ｒと４Ｒ、輻輳調節用くさびプリズム５
Ｌ，５Ｒ、接眼レンズ６Ｌ，６Ｒが配置されてい
る。 FIG. 1 shows an embodiment in which the present invention is used in an ophthalmological stereoscopic microscope, where S represents the eye to be examined, and EL and ER represent the observer's left and right eyes. The left and right optical paths include a common objective lens 1, imaging lenses 2L and 2R, and imaging prisms 3L and 3, respectively.
R, 4R and 4R, wedge prism 5 for convergence adjustment
L, 5R, and eyepiece lenses 6L, 6R are arranged.
ここで、対物レンズ１から整像プリズム３Ｌ，
３Ｒまでの左右の光軸Ｌ１，Ｒ１は平行であるか
ら、結像レンズ２Ｌ，２Ｒを移動して変倍するこ
とができる。また、結像レンズ２Ｌ，２Ｒを通過
する光束は平行光束になつているから、光分割部
材を適宜に挿入し、この光分割部材での反射斜光
を用いて撮影先に抽出することも可能である。 Here, from the objective lens 1 to the imaging prism 3L,
Since the left and right optical axes L1 and R1 up to 3R are parallel, it is possible to change the magnification by moving the imaging lenses 2L and 2R. Furthermore, since the light beams passing through the imaging lenses 2L and 2R are parallel light beams, it is also possible to insert a light splitting member as appropriate and extract the reflected oblique light from this light splitting member to the photographing destination. be.
輻輳調節用くさびプリズム５Ｌ，５Ｒを、それ
ぞれ接眼レンズ６Ｌ，６Ｒの焦点面近傍に配置す
れば、整像プリズム３Ｌ，３Ｒから接眼レンズ６
Ｌ，６Ｒにかけての光軸Ｌ２，Ｒ２を観察光軸が
輻輳する方向へ屈折することができる。また、輻
輳調節用くさびプリズム５Ｌ，５Ｒを、接眼レン
ズ６Ｌ，６Ｒの焦点面近傍に配置すると、色収差
も発生しないのでより好都合である。もし、光路
内の他の場所にこれらの輻輳調節用くさびプリズ
ム５Ｌ，５Ｒを配置するときは、貼合わせの色消
プリズムを使用する必要が生ずる。 If the wedge prisms 5L and 5R for convergence adjustment are arranged near the focal planes of the eyepieces 6L and 6R, respectively, the image adjustment prisms 3L and 3R can be
The optical axes L2 and R2 extending from L and 6R can be refracted in the direction in which the observation optical axes converge. Furthermore, it is more convenient to arrange the convergence adjustment wedge prisms 5L, 5R near the focal planes of the eyepieces 6L, 6R, since no chromatic aberration occurs. If these wedge prisms 5L and 5R for convergence adjustment are to be placed elsewhere in the optical path, it will be necessary to use laminated achromatic prisms.
第２図は第１図の整像プリズム３Ｌ，３Ｒを光
軸方向から見た図である。一般に、整像プリズム
は直角プリズムを２個組合わせて構成され、倒立
像を正立像に変換する作用を有している。第２図
において点線は整像プリズム３Ｌ，３Ｒを眼幅を
調節するために光軸Ｌ１，Ｒ１の周りに回転した
状態を示している。この状態では光軸Ｌ２はＬ３
に、光軸Ｒ２はＲ３となるので、眼幅はＬ２とＲ
２との間隔からＬ３とＲ３の間隔まで調節するこ
とができる。 FIG. 2 is a diagram of the imaging prisms 3L and 3R of FIG. 1 viewed from the optical axis direction. Generally, an imaging prism is constructed by combining two right-angled prisms, and has the function of converting an inverted image into an erect image. In FIG. 2, dotted lines indicate the state in which the imaging prisms 3L and 3R are rotated around the optical axes L1 and R1 in order to adjust the interpupillary distance. In this state, the optical axis L2 is L3
, the optical axis R2 becomes R3, so the interpupillary distance is L2 and R.
The distance between L3 and R3 can be adjusted from the distance between L3 and R3.
輻輳調節用くさびプリズム５Ｌ，５Ｒは接眼レ
ンズ６Ｒ，６Ｌを結ぶ方向に傾斜を持つように斜
設され、眼幅調節時には整像プリズム３Ｌ，３Ｒ
と一体になつて回転する。 The wedge prisms 5L and 5R for convergence adjustment are inclined in the direction connecting the eyepieces 6R and 6L, and the wedge prisms 3L and 3R are used for adjusting the interpupillary distance.
It rotates as one.
近見の輻輳角は約10度であるから、輻輳調節用
くさびプリズム５Ｌ，５Ｒによりそれぞれ第１図
で５度偏向されるとして、眼幅調節のため整像プ
リズム３Ｌ，３Ｒをそれぞれ第２図で15度回転さ
せたときの視線の方向を計算すると、水平方向10
度の輻輳角が9.7度に、垂直方向０度が1.3度の俯
角に変化するが、この程度の変化は実用上問題と
はならない。 Since the convergence angle for near vision is approximately 10 degrees, the convergence adjustment wedge prisms 5L and 5R each deflect the image by 5 degrees as shown in FIG. Calculating the direction of the line of sight when rotated by 15 degrees, the horizontal direction is 10
The angle of convergence changes to 9.7 degrees, and the angle of depression changes from 0 degrees in the vertical direction to 1.3 degrees, but changes of this magnitude do not pose a practical problem.
このように本考案に係る実体顕微鏡による場
合、対物レンズと接眼レンズとの間の左右光軸内
に輻輳調節用屈折プリズムを挿入して、適度に輻
輳をもたせることができるため、観察が極めて容
易になり、しかも色収差を小さくできるという効
果もある。 As described above, in the case of the stereomicroscope according to the present invention, it is possible to insert a refractive prism for convergence adjustment within the left and right optical axis between the objective lens and the eyepiece lens to provide an appropriate degree of convergence, making observation extremely easy. Moreover, it also has the effect of reducing chromatic aberration.
図面は本考案に係る実体顕微鏡の一実施例を示
すものであり、第１図は全体的な光学配置図、第
２図は整像プリズムを光軸方向から見た図であ
る。
符号１は対物レンズ、２は結像レンズ、３，４
は整像プリズム、５は輻輳調節用くさびプリズ
ム、６は接眼レンズであり、添字Ｌは左眼側、Ｒ
は右眼側を表している。
The drawings show an embodiment of the stereoscopic microscope according to the present invention, and FIG. 1 is a diagram of the overall optical arrangement, and FIG. 2 is a diagram of the imaging prism viewed from the optical axis direction. 1 is an objective lens, 2 is an imaging lens, 3, 4
is an imaging prism, 5 is a wedge prism for convergence adjustment, 6 is an eyepiece, the subscript L is for the left eye side, and R is for the left eye side.
represents the right eye side.
Claims (1)
眼レンズの組合わせを左右一対設けた実体顕微鏡
において、前記対物レンズと前記接眼レンズの間
の左右各光路中であつて前記接眼レンズの焦点面
近傍に輻輳調整のための屈折プリズムを有するこ
とを特徴とする実体顕微鏡。 In a stereomicroscope equipped with a pair of left and right combinations of an objective lens and an eyepiece disposed behind the objective lens, a pair of left and right eyepieces is provided in each of the left and right optical paths between the objective lens and the eyepiece, and in the vicinity of the focal plane of the eyepiece. A stereoscopic microscope characterized by having a refractive prism for convergence adjustment.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6240284U JPS60173914U (en) | 1984-04-27 | 1984-04-27 | stereo microscope |
| US06/724,883 US4634241A (en) | 1984-04-27 | 1985-04-19 | Stereoscopic microscope |
| DE3515004A DE3515004C2 (en) | 1984-04-27 | 1985-04-25 | Stereo microscope |
| DE3546915A DE3546915C2 (en) | 1984-04-27 | 1985-04-25 | Single objective stereo microscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6240284U JPS60173914U (en) | 1984-04-27 | 1984-04-27 | stereo microscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60173914U JPS60173914U (en) | 1985-11-18 |
| JPS6343443Y2 true JPS6343443Y2 (en) | 1988-11-14 |
Family
ID=30591584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6240284U Granted JPS60173914U (en) | 1984-04-27 | 1984-04-27 | stereo microscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60173914U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3760288D1 (en) * | 1986-03-14 | 1989-08-03 | Haag Ag Streit | Stereo microscope |
| JP4217405B2 (en) * | 2002-01-22 | 2009-02-04 | オリンパス株式会社 | Stereo microscope |
-
1984
- 1984-04-27 JP JP6240284U patent/JPS60173914U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60173914U (en) | 1985-11-18 |
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