JPH04144536A - Ophthalmic apparatus - Google Patents
Ophthalmic apparatusInfo
- Publication number
- JPH04144536A JPH04144536A JP2267420A JP26742090A JPH04144536A JP H04144536 A JPH04144536 A JP H04144536A JP 2267420 A JP2267420 A JP 2267420A JP 26742090 A JP26742090 A JP 26742090A JP H04144536 A JPH04144536 A JP H04144536A
- Authority
- JP
- Japan
- Prior art keywords
- forehead
- eye
- state
- abutting member
- examined
- 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.)
- Granted
Links
- 210000001061 forehead Anatomy 0.000 abstract description 24
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000009530 blood pressure measurement Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000004410 intraocular pressure Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 210000004087 cornea Anatomy 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、家庭においても使用可能な眼科機器に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ophthalmological device that can be used even at home.
[従来の技術]
近年、例えば特開昭61−276533号公報に開示さ
れているように、被検者自身が操作して位置合わせ、眼
圧等の測定、撮影を行うことができるようにした眼科装
置が知られている。この種の装置は、例えば家庭におい
て眼圧値を手軽に計測できるという便利さがあるが、測
定者自身が専門家でないため位置合わせを正確にかつ容
易にできるようにする工夫が要求される。[Prior Art] In recent years, as disclosed in, for example, Japanese Patent Application Laid-Open No. 61-276533, it has become possible for the examinee himself to operate the positioning, measure intraocular pressure, etc., and take pictures. Ophthalmological devices are known. This type of device has the convenience of being able to easily measure intraocular pressure values at home, for example, but since the person measuring the device is not an expert, it is necessary to devise a device that allows for accurate and easy positioning.
第7図は検者が位置合わせを行う従来例の眼科機器を示
し、基台1上に載置された移動台2には測定部3及び操
作桿4が取り付けられていて、基台1に固設された顔支
持部5に被検者Pの顔部を固定して、検者が操作桿4を
用いて被検眼に対して測定部3を三次元方向に移動して
位置合わせを行う。この際に、移動台2にはマイクロス
イッチ6が取り付けられていて、そのオン・オフ状態に
よって基台1に対する移動台2の相対位置が顔支持部5
に対して右側に寄っているか左側に寄っているかを検出
することができ、測定状態の左右眼が判別される。この
検出はフォトセンサを用いても同様に行うことができる
。FIG. 7 shows a conventional ophthalmological device in which the examiner performs positioning. The face of the subject P is fixed to the fixed face support part 5, and the examiner uses the operation stick 4 to move the measuring part 3 in three-dimensional directions with respect to the subject's eye for positioning. . At this time, a microswitch 6 is attached to the movable base 2, and the relative position of the movable base 2 with respect to the base 1 is determined by the on/off state of the microswitch 6.
It is possible to detect whether the eye is on the right side or the left side of the eye, and the left and right eyes in the measurement state can be determined. This detection can be similarly performed using a photosensor.
第8図は被検者P自身が位置合わせを行う従来例の眼科
機器を示し、基台1上に載置された移動台2には測定部
3が設けられ、被検者P側に操作桿4が取り付けられて
いて、同様に基台1に固設された皿支持部5に被検者P
の顔部を固定して、被検者Pが測定部3を用いて同様の
位置合わせを行う。この場合にも、移動台2の下部にマ
イクロスイッチ6が取り付けられていて、左右眼の切換
えが判別される。FIG. 8 shows a conventional ophthalmological device in which the patient P himself aligns the position. A rod 4 is attached, and the subject P is placed on a plate support 5 which is also fixed to the base 1.
The subject P performs similar positioning using the measurement unit 3 while fixing the face of the patient. In this case as well, a microswitch 6 is attached to the lower part of the movable table 2 to determine whether to switch between the left and right eyes.
[発明が解決しようとする課題]
しかしながら、上述の従来例は比較的高精度の位置合わ
せが必要な場合に適しており、また視野計のように顔支
持部材を2組装備してそれぞれの被検眼に対応する部材
に顔を載せ換えることによって左右眼の切換えを行う機
構の装置も含めて左右幅寸法が大きく、家庭で使用する
場合には大型で持ち運びも不便である。また、被検者P
が自分の顔部を移動させて位置合わせを行う場合には、
移動台2、操作桿4、面支持台5は不要となり小型化で
きるが、マイクロスイッチ6のような左右眼検出スイッ
チは使用できなくなって、測定値の左右眼の区別が明確
でなくなる。[Problems to be Solved by the Invention] However, the above-mentioned conventional example is suitable for cases where relatively high-precision positioning is required. The left-right width dimension is large, including the device with a mechanism for switching between left and right eyes by placing the face on a member corresponding to optometry, and when used at home, it is large and inconvenient to carry. In addition, subject P
When aligning by moving your face,
Although the movable table 2, the operating rod 4, and the surface support stand 5 are no longer necessary, the size can be reduced, but the left and right eye detection switches such as the microswitch 6 cannot be used, and the left and right eyes in measurement values are not clearly distinguished.
また、被検者P自身が片眼ずつ測定や操影を行う手持ち
の眼科機器の場合には、被検者P自身がスイッチ等を随
時入力することで、測定値が右眼或いは左眼のものかを
区別することができるが、スイッチを押し忘れて診断に
支障をきたす危険性もある。In addition, in the case of a hand-held ophthalmological device that the examinee P himself uses to measure and manipulate one eye at a time, the examinee P himself can input a switch, etc. at any time, so that the measured value can be changed to the right or left eye. Although it is possible to distinguish between different types of objects, there is also the risk of forgetting to press the switch, which may impede diagnosis.
本発明の目的は、上述の欠点を解消し、小型で左右眼の
判別を確実に行うことができる眼科機器を提供すること
にある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and provide an ophthalmological device that is compact and capable of reliably distinguishing between left and right eyes.
[課題を解決するための手段]
上述の目的を達成するために、本発明に係る眼科機器に
おいては、被検者の被検眼を片眼ずつ単一の検査系に位
置合わせを行って測定又は撮影を行う眼科機器において
、被検者の顔の一部に当接する当接部材と、該当接部材
を回転移動又は直線移動によって前記検査系に対して左
右方向に移動する移動手段と、前記当接部材の移動を検
知して左右眼の判別を行う判別手段とを有することを特
徴とするものである。[Means for Solving the Problems] In order to achieve the above-mentioned object, the ophthalmological device according to the present invention aligns each eye of a subject to a single examination system to perform measurement or measurement. An ophthalmological device that performs imaging includes: a contact member that contacts a part of the face of a subject; a moving means that moves the contact member in the left-right direction with respect to the examination system by rotating or linearly moving the contact member; The present invention is characterized by having a discriminating means for detecting movement of the contact member and discriminating between left and right eyes.
[作用]
上述の構成を有する眼科機器は、当接部材を移動して被
検者の顔部の一部に当接した状態で、片眼ずつ検査系に
位置合わせを行って測定又は撮影を行うと同時に、当接
部材の移動を用いて左右眼の判別を行う。[Operation] The ophthalmological equipment having the above-mentioned configuration moves the abutting member to abut a part of the examinee's face, aligns one eye with the examination system one by one, and performs measurement or photography. At the same time, the left and right eyes are discriminated using the movement of the abutment member.
[実施例]
本発明を第1図〜第6図に図示の実施例に基づいて詳細
に説明する。[Example] The present invention will be explained in detail based on the example illustrated in FIGS. 1 to 6.
第1図は本発明を眼圧計に適用した第1の実施例の側面
図を示し、第2図は被検者P側からの正面図を示してい
る。光学基台7には被検眼Eに対向して眼軸Oと一致さ
せるノズル8が設けられていて、被検眼P側からノズル
8を保持する凹面鏡9、孔開きガラス10が配置されて
いる。ノズル8がら空気を噴射するために、光学基台7
の下部のシリンダ7a内にはピストン11が設けられて
いて、ピストン11はソレノイド12により駆動される
ようになっている。光学基台7の上部には回転中心軸を
眼軸Oと平行にする軸受13が設けられていて、この軸
受13に回動部材14が軸14aを介して第2図の矢印
方向に回動可能に嵌合されている。保持部材15が回動
部材14にボルト16、カラー17、回動部材14に固
定されたナツト14bを介して取り付けられており、保
持部材15の被検者P側には額当接部材18が取り付け
られていて、保持部材15によって額当接部材18は眼
軸Oと平行前後方向に移動可能とされている。また、光
学基台7の左側面部にマイクロスイッチ19が取り付け
られていて、回動部材14が左側方向に回動して水平と
なった際に、回動部材14によってマイクロスイッチ1
9が押されてオン状態となるようにされている。FIG. 1 shows a side view of a first embodiment in which the present invention is applied to a tonometer, and FIG. 2 shows a front view from the subject P side. The optical base 7 is provided with a nozzle 8 that faces the eye E to be examined and aligned with the ocular axis O, and a concave mirror 9 that holds the nozzle 8 and a perforated glass 10 are arranged from the eye P side. In order to inject air through the nozzle 8, the optical base 7
A piston 11 is provided in the lower cylinder 7a, and the piston 11 is driven by a solenoid 12. A bearing 13 is provided at the top of the optical base 7, and a rotating member 14 is mounted on this bearing 13 to rotate in the direction of the arrow in FIG. 2 via a shaft 14a. possible to be mated. The holding member 15 is attached to the rotating member 14 via a bolt 16, a collar 17, and a nut 14b fixed to the rotating member 14, and a forehead abutting member 18 is attached to the subject P side of the holding member 15. The forehead abutting member 18 is attached to the holding member 15 and is movable in the front-rear direction parallel to the eye axis O. Further, a microswitch 19 is attached to the left side of the optical base 7, and when the rotating member 14 rotates leftward and becomes horizontal, the microswitch 19 is moved by the rotating member 14.
9 is pressed to turn it on.
上述の構成において、例えば左眼を測定する場合には、
第2図に示すように回動部材14を左方向に回動して、
被検者Pは額当接部材18を額部に当接し、自己の被検
眼Eを凹面鏡9に写し出して角膜中心とノズル8の中心
が一致するように自分で顔部の位置を調整する。ただし
、ノズル8に対する作動距離調整は額当接部材18に額
が当接する状態で行われていて、更に虹彩がベストピン
ト状態で観察可能なように凹面鏡9の曲率半径が設定さ
れている。位置合わせ終了後に、ソレノイド12に電流
を流してピストン11を上昇させて、ノズル8を介して
被検眼Eに空気を噴射して眼圧測定を行う。In the above configuration, for example, when measuring the left eye,
As shown in FIG. 2, rotate the rotating member 14 to the left,
The subject P abuts the forehead abutting member 18 against the forehead, reflects his or her eye E on the concave mirror 9, and adjusts the position of the face by himself or herself so that the center of the cornea and the center of the nozzle 8 coincide. However, the working distance adjustment for the nozzle 8 is performed with the forehead in contact with the forehead contact member 18, and the radius of curvature of the concave mirror 9 is set so that the iris can be observed in the best focus state. After the positioning is completed, current is applied to the solenoid 12 to raise the piston 11, and air is injected into the eye E through the nozzle 8 to measure the intraocular pressure.
このような眼圧測定を数回行った後に、被検者Pは額当
接部材18を回動部材14により第2図の右側に回動し
て、同様の位置合わせ測定を行う。この際に、回動部材
14の移動によってマイクロスイッチ19がオン状態か
らオフ状態に変化して、左右眼が切換わったことが判別
される。なお、左右眼の判別はマイクロスイッチ以外に
例えばフォトダイオードスイッチによってもよい。After performing such intraocular pressure measurement several times, the subject P rotates the forehead abutting member 18 to the right side in FIG. 2 using the rotating member 14, and performs a similar alignment measurement. At this time, the microswitch 19 changes from the on state to the off state due to the movement of the rotating member 14, and it is determined that the left and right eyes have been switched. Note that the discrimination between left and right eyes may be performed by using, for example, a photodiode switch instead of a microswitch.
この第1の実施例において、保持部材15及び額当接部
材18は連続的又は段階的に位置調節が可能とされ、被
検者Pが額を強く当接してもその圧力に充分に耐え得る
構造になっており、更に回動部材14の回転移動には図
示しないストッパを設けて過度の回転を防止する構造と
されている。In this first embodiment, the holding member 15 and the forehead contact member 18 can be adjusted in position continuously or stepwise, and can sufficiently withstand the pressure even if the subject P strongly contacts the forehead. Furthermore, a stopper (not shown) is provided for the rotational movement of the rotating member 14 to prevent excessive rotation.
また、保持部材15を動かすことによって順当接部材1
8の上下が左右の切換えによらずに一定に保持すること
も可能であり、この実施例以外に額当接部材18の上下
が左右の切換えによって逆になる構造も実現可能である
。Further, by moving the holding member 15, the forward contact member 1
It is also possible to maintain the upper and lower sides of the forehead contact member 18 constant without switching between the left and right sides, and it is also possible to realize a structure in which the upper and lower sides of the forehead contact member 18 are reversed by switching between the left and right sides other than this embodiment.
第3図は第2の実施例の要部構成図を示し、第4図は第
3図のA−A線に沿った断面図を示し、第1図と同一の
符号は同一の部材を示している。FIG. 3 shows a configuration diagram of main parts of the second embodiment, and FIG. 4 shows a cross-sectional view taken along line A-A in FIG. 3, and the same reference numerals as in FIG. 1 indicate the same members. ing.
光学基台7の上部には、支持部材20が固定されていて
、額当接部材18°はレール21を介して支持部材20
に取り付けられ、額当接部材18゜は円滑に左右移動で
きるようにされている。レール21の左側にはビン22
が設けられていて、額当接部材18°が右側の定位置ま
で移動すると、支持部材20に固定されたマイクロスイ
ッチ19を押してオン状態とするようにされており、他
の構成は第1の実施例と同様である。A support member 20 is fixed to the upper part of the optical base 7, and the forehead contact member 18° is connected to the support member 20 via a rail 21.
The forehead abutting member 18° can be smoothly moved from side to side. There is a bin 22 on the left side of the rail 21.
is provided, and when the forehead contact member 18° moves to a fixed position on the right side, a microswitch 19 fixed to the support member 20 is pressed to turn it on. This is similar to the example.
この実施例においては、片眼測定後に反対銀を測定する
場合には、額当接部材18°をレール21に沿って左右
方向に移動すると、マイクロスイッチ19がオン又はオ
フ状態とされて左右眼が交換したことが判別できる。In this embodiment, when measuring the opposite silver after measuring with one eye, when the forehead contact member 18° is moved in the left and right direction along the rail 21, the micro switch 19 is turned on or off, and the right and left eyes are turned on or off. It can be determined that it has been replaced.
なお、この実施例においては省略されているが、第1の
実施例のように額当接部材18°が眼軸0に沿った方向
に、被検者の額に合わせて位置調整が可能なようにされ
ていることが望ましく、ストッパを設けて左右方向移動
位置決めをしてもよい。Although omitted in this embodiment, as in the first embodiment, the forehead contact member 18° can be adjusted in position in the direction along the eye axis 0 according to the subject's forehead. Preferably, a stopper may be provided to position the movement in the left and right direction.
第5図は外光の影響によって凹面鏡9に対する固視が困
難になることを避けるために、額当接部材をアイカップ
と兼用にした第3の実施例を示している。光学基台7に
はノズル鏡筒23がねじ止めされていて、このノズル鏡
筒23の先端に第6図の正面図に示すような楕円形状の
アイカップ24を偏心した状態で固定した回動部材25
が取り付けられており、光学基台7の周囲に半回転可能
とされている。また、回動部材25にビン26が取り付
けられており、第6図に示す位置まで回転されてアイカ
ップ24の長軸が水平となった際に、ノズル鏡筒23に
固設されたマイクロスイッチ19を押すようにされてい
る。FIG. 5 shows a third embodiment in which the forehead abutting member is also used as an eyecup in order to avoid difficulty in fixating the concave mirror 9 due to the influence of external light. A nozzle barrel 23 is screwed to the optical base 7, and an elliptical eyecup 24 as shown in the front view of FIG. 6 is fixed eccentrically to the tip of the nozzle barrel 23. Member 25
is attached so that it can rotate half a rotation around the optical base 7. A pin 26 is attached to the rotating member 25, and when the eye cup 24 is rotated to the position shown in FIG. It is set to press 19.
このように、アイカップ24を楕円状として偏心して取
り付けていると、左右眼を交換する時はアイカップ18
を半回転させる必要が生じ、その際にマイクロスイッチ
19がオン又はオフ状態になるので、正確に左右眼切換
えの判別ができる。In this way, if the eyecup 24 is shaped like an ellipse and attached eccentrically, the eyecup 18 can be adjusted when replacing the left and right eyes.
It becomes necessary to turn the lens half a turn, and at that time, the microswitch 19 is turned on or off, so that switching between left and right eyes can be accurately determined.
前述した3つの実施例は何れも眼圧計に適用されている
が、被検者Pが自己位置合わせを行う多種の眼科機器に
適応できる。また、従来の眼科機器のように検者が操作
する眼科機器にも適用可能である。Although the three embodiments described above are all applied to a tonometer, they can be applied to various types of ophthalmological equipment in which the subject P performs self-alignment. Furthermore, the present invention can also be applied to ophthalmological equipment operated by an examiner, such as conventional ophthalmological equipment.
[発明の効果]
以上説明したように本発明に係る眼科機器は、当接部材
を移動して被検者の顔部の一部に当接した状態で片眼ず
つ位置合わせ・測定・撮影を行うと同時に、当接部材の
移動を用いて左右眼の判別を行っているので、左右眼の
判別が正確にかつ確実に行われ、被検者自身が操作する
眼科機器に適用することが効果的である。また、簡素な
構成であって、検者が操作する場合にも検査系の当接部
材の左右移動量が小さく小型化が可能であり、小空間で
使用できる。[Effects of the Invention] As explained above, the ophthalmological device according to the present invention is capable of positioning, measuring, and photographing one eye at a time while moving the abutting member and abutting a part of the subject's face. At the same time, the left and right eyes are discriminated using the movement of the contact member, so the left and right eyes can be discriminated accurately and reliably, making it effective to apply to ophthalmological equipment operated by the patient himself. It is true. In addition, it has a simple configuration, and even when operated by an examiner, the amount of left-right movement of the abutment member of the inspection system is small, allowing for miniaturization, and it can be used in a small space.
図面第1図〜第6図は本発明に係る眼科機器の実施例を
示し、第1図は第1の実施例の構成図、第2図は正面図
、第3図は第2の実施例の構成図、第4図は第3図のA
−A線に沿った断面図、第5図は第3の実施例の構成図
、第6図はアイカップの正面図であり、第7図、第8図
は従来例の構成図である。
符号7は光学基台、8はノズル、14.25は回動部材
、15は保持部材、18.18′は額当接部材、19は
マイクロスイッチ、20は支持部材、24はアイカップ
である。
特許出願人 キャノン株式会社
第1図
第2図
第3図
第5図Drawings 1 to 6 show embodiments of the ophthalmological equipment according to the present invention, in which FIG. 1 is a configuration diagram of the first embodiment, FIG. 2 is a front view, and FIG. 3 is a second embodiment. The configuration diagram of Fig. 4 is A of Fig. 3.
-A sectional view taken along the line A, FIG. 5 is a configuration diagram of the third embodiment, FIG. 6 is a front view of the eye cup, and FIGS. 7 and 8 are configuration diagrams of the conventional example. 7 is an optical base, 8 is a nozzle, 14.25 is a rotation member, 15 is a holding member, 18.18' is a forehead contact member, 19 is a micro switch, 20 is a support member, and 24 is an eyecup. . Patent applicant: Canon Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 5
Claims (1)
せを行って測定又は撮影を行う眼科機器において、被検
者の顔の一部に当接する当接部材と、該当接部材を回転
移動又は直線移動によって前記検査系に対して左右方向
に移動する移動手段と、前記当接部材の移動を検知して
左右眼の判別を行う判別手段とを有することを特徴とす
る眼科機器。1. In ophthalmological equipment that measures or photographs the examinee's eyes by aligning them one eye at a time with a single examination system, there is a contact member that comes into contact with a part of the examinee's face, and a corresponding contact member. An ophthalmology clinic characterized by having a moving means for moving a member in the left-right direction with respect to the examination system by rotating or linearly moving the member, and a discriminating means for detecting the movement of the abutting member and discriminating between left and right eyes. device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2267420A JP3012303B2 (en) | 1990-10-04 | 1990-10-04 | Ophthalmic equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2267420A JP3012303B2 (en) | 1990-10-04 | 1990-10-04 | Ophthalmic equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04144536A true JPH04144536A (en) | 1992-05-19 |
JP3012303B2 JP3012303B2 (en) | 2000-02-21 |
Family
ID=17444602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2267420A Expired - Fee Related JP3012303B2 (en) | 1990-10-04 | 1990-10-04 | Ophthalmic equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3012303B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006093280A1 (en) * | 2005-03-04 | 2006-09-08 | Nidek Co., Ltd. | Ophthalmologic device |
JP2007196069A (en) * | 2000-02-07 | 2007-08-09 | Reichert Inc | Hand-held non-contact tonometer |
CN113180592A (en) * | 2021-04-22 | 2021-07-30 | 深圳市眼科医院 | Household portable automatic intraocular pressure measuring instrument and intraocular pressure measuring method |
-
1990
- 1990-10-04 JP JP2267420A patent/JP3012303B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007196069A (en) * | 2000-02-07 | 2007-08-09 | Reichert Inc | Hand-held non-contact tonometer |
WO2006093280A1 (en) * | 2005-03-04 | 2006-09-08 | Nidek Co., Ltd. | Ophthalmologic device |
JP2006239249A (en) * | 2005-03-04 | 2006-09-14 | Nidek Co Ltd | Ophthalmic apparatus |
US7588336B2 (en) | 2005-03-04 | 2009-09-15 | Nidek Co., Ltd. | Ophthalmic apparatus |
JP4570485B2 (en) * | 2005-03-04 | 2010-10-27 | 株式会社ニデック | Ophthalmic equipment |
CN113180592A (en) * | 2021-04-22 | 2021-07-30 | 深圳市眼科医院 | Household portable automatic intraocular pressure measuring instrument and intraocular pressure measuring method |
CN113180592B (en) * | 2021-04-22 | 2023-01-10 | 深圳市眼科医院 | Household portable automatic intraocular pressure measuring instrument and intraocular pressure measuring method |
Also Published As
Publication number | Publication date |
---|---|
JP3012303B2 (en) | 2000-02-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |