JP2002244048A - Optical device - Google Patents

Optical device

Info

Publication number
JP2002244048A
JP2002244048A JP2001037296A JP2001037296A JP2002244048A JP 2002244048 A JP2002244048 A JP 2002244048A JP 2001037296 A JP2001037296 A JP 2001037296A JP 2001037296 A JP2001037296 A JP 2001037296A JP 2002244048 A JP2002244048 A JP 2002244048A
Authority
JP
Japan
Prior art keywords
optical system
eyepiece
diopter
adjustment
objective lens
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.)
Pending
Application number
JP2001037296A
Other languages
Japanese (ja)
Inventor
Fuminori Takahashi
史紀 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Optical Co Ltd
Original Assignee
Nitto Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nitto Optical Co Ltd filed Critical Nitto Optical Co Ltd
Priority to JP2001037296A priority Critical patent/JP2002244048A/en
Publication of JP2002244048A publication Critical patent/JP2002244048A/en
Pending legal-status Critical Current

Links

Landscapes

  • Telescopes (AREA)
  • Lens Barrels (AREA)
  • Focusing (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an optical device advantageous in terms of cost and space which is provided with an objective lens optical system and an eyepiece optical system and in which focusing and diopter adjustment are performed by moving a lens. SOLUTION: In a monocular 1 provided with an objective lens group 10 and an eyepiece group 13, a part of the objective lens group 10 forms a movable part 11, and a lens driving part 3 is provided so that the movable part 11 is driven in the optical axis direction. The focusing and the diopter adjustment are performed by driving the movable part 11.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、対物光学系および
接眼光学系とを備え、単眼鏡や双眼鏡などに使用される
光学装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical device having an objective optical system and an eyepiece optical system and used for monocular or binoculars.

【0002】[0002]

【従来の技術】従来、単眼鏡や双眼鏡として使用される
光学装置には、対物光学系と接眼光学系とが備えられて
いる。このような光学装置では、対物光学系にレンズを
駆動する駆動機構を設け、光軸方向に移動させることに
よって焦点調節が行われる。一方、接眼光学系にも駆動
機構が設けられ、ユーザーが自分の視力に合わせて接眼
光学系を駆動させ、視度調整を行うようになっている。
2. Description of the Related Art Conventionally, an optical device used as a monocular or a binocular has an objective optical system and an eyepiece optical system. In such an optical device, a focus adjustment is performed by providing a drive mechanism for driving a lens in the objective optical system and moving the lens in the optical axis direction. On the other hand, a driving mechanism is also provided in the eyepiece optical system, and the user drives the eyepiece optical system according to his / her own visual acuity to adjust the diopter.

【0003】[0003]

【発明が解決しようとする課題】しかし、このような光
学装置においては、対物光学系と接眼光学系のそれぞれ
にレンズ駆動機構が必要であり、装置全体が大型化した
り、またコストが嵩むという問題があった。
However, in such an optical device, a lens driving mechanism is required for each of the objective optical system and the eyepiece optical system, so that the entire device becomes large and the cost increases. was there.

【0004】本発明の課題は、焦点調節と視度調整とを
行う光学系の機構を簡素化し、コストとスペースの面で
より有利な光学装置を提供することである。
An object of the present invention is to provide an optical apparatus which simplifies the mechanism of an optical system for performing focus adjustment and diopter adjustment and is more advantageous in terms of cost and space.

【0005】[0005]

【課題を解決するための手段】以上の問題を解決するた
め、請求項1記載の発明は、例えば図1に示すように、
対物レンズ光学系(対物レンズ群10)と接眼レンズ光
学系(接眼レンズ群13)とを備える光学装置(単眼鏡
1)において、対物レンズ光学系と接眼レンズ光学系は
連続しており、対物レンズ光学系の焦点調節と、接眼レ
ンズ光学系の視度調整が、同一の箇所(可動部11)を
駆動することで行われることを特徴とする。
Means for Solving the Problems In order to solve the above problems, the invention according to claim 1 is, for example, as shown in FIG.
In an optical device (monocular 1) including an objective lens optical system (objective lens group 10) and an eyepiece optical system (eyepiece lens group 13), the objective lens optical system and the eyepiece optical system are continuous, and the objective lens The focus adjustment of the optical system and the diopter adjustment of the eyepiece optical system are performed by driving the same portion (the movable portion 11).

【0006】ここで、光学装置としては、例えば写真機
もしくは望遠鏡のファインダーといった光学製品の一部
であってもよいし、また単眼鏡、双眼鏡などでもよい。
Here, the optical device may be a part of an optical product such as a finder of a camera or a telescope, or may be a monocular or a binocular.

【0007】請求項1記載の発明によれば、対物レンズ
光学系と接眼レンズ光学系とを備える光学装置におい
て、対物レンズ光学系の焦点調節と、接眼レンズ光学系
の視度調整とが同一の箇所を駆動することで行われる。
従って、一つの駆動機構で、焦点調節も視度調整も行う
ことができるので、駆動機構を焦点調節用と視度調整用
とに別々に設ける必要がなく、その分スペースを小さく
でき、またコストも抑えることができる。
According to the first aspect of the present invention, in an optical apparatus having an objective lens optical system and an eyepiece optical system, the focus adjustment of the objective lens optical system and the diopter adjustment of the eyepiece optical system are the same. This is performed by driving a portion.
Therefore, since the focus adjustment and the diopter adjustment can be performed by one drive mechanism, it is not necessary to separately provide the drive mechanism for the focus adjustment and the diopter adjustment, and the space can be reduced correspondingly, and the cost can be reduced. Can also be suppressed.

【0008】請求項2記載の発明は、請求項1記載の光
学装置1において、対物レンズ光学系の少なくとも一部
を構成する可動部(11)を駆動することで焦点調節が
行われ、視度調整は、前記可動部を駆動することで行わ
れることを特徴とする。
According to a second aspect of the present invention, in the optical device 1 according to the first aspect, focus adjustment is performed by driving a movable portion (11) constituting at least a part of an objective lens optical system, and diopter is achieved. The adjustment is performed by driving the movable part.

【0009】請求項2記載の発明によれば、対物レンズ
光学系の少なくとも一部を構成する可動部を駆動して焦
点調節が行われ、視度調整も、焦点調節と同一の可動部
を駆動することで行われる。従って、同一の駆動機構に
よって焦点調節と視度調整とを行うことができる。ま
た、視度調整を、対物レンズ光学系のみを駆動して行
い、接眼光学系は駆動させずに行うため、調整の際にア
イポイントが移動することがなく、より使用しやすくな
る。
According to the second aspect of the present invention, the focus adjustment is performed by driving the movable part constituting at least a part of the objective lens optical system, and the diopter adjustment drives the same movable part as the focus adjustment. It is done by doing. Therefore, focus adjustment and diopter adjustment can be performed by the same drive mechanism. In addition, since the diopter adjustment is performed by driving only the objective lens optical system and not driving the eyepiece optical system, the eye point does not move during the adjustment, which makes it easier to use.

【0010】[0010]

【発明の実施の形態】以下、図を参照して本発明の実施
の形態を説明する。図1は、本発明の一例としてのオー
トフォーカス(AF)式の単眼鏡(光学装置)1の要部
構成を示している。図1において、左側を単眼鏡1の前
方(観察する物体側)とする。単眼鏡1は、光学系2
と、レンズ駆動部3と、駆動制御部4とから構成されて
いる。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an essential configuration of an autofocus (AF) type monocular (optical device) 1 as an example of the present invention. In FIG. 1, the left side is the front of the monocular 1 (object side to be observed). The monocular 1 has an optical system 2
, A lens drive unit 3 and a drive control unit 4.

【0011】光学系2は、前方側から順に、対物レンズ
群(対物レンズ光学系)10と、接眼レンズ群(接眼レ
ンズ光学系)13とから主に構成されている。図1にお
けるAはアイポイントであって、ユーザーが単眼鏡1を
介して物体を見る際の眼の位置となる。
The optical system 2 mainly includes an objective lens group (objective optical system) 10 and an eyepiece lens group (eyepiece optical system) 13 in this order from the front side. A in FIG. 1 is an eye point, which is a position of an eye when a user views an object through the monocular 1.

【0012】対物レンズ群10は、複数のレンズを組み
合わせた可動部11と、プリズムなどからなる中間部1
2とから構成されている。可動部11はレンズ支持部1
1aで支持されており、レンズ支持部11aの側方に
は、前後方向(光軸と平行)にスクリューネジ21が挿
通している。スクリューネジ21が回転すると、レンズ
支持部11aが前後方向に動き、可動部11が光軸方向
(図1において矢印で示す方向)に移動するようになっ
ている。
The objective lens group 10 includes a movable portion 11 formed by combining a plurality of lenses, and an intermediate portion 1 including a prism or the like.
And 2. The movable part 11 is the lens support part 1
1a, a screw screw 21 is inserted laterally of the lens support 11a in the front-rear direction (parallel to the optical axis). When the screw 21 rotates, the lens supporting portion 11a moves in the front-back direction, and the movable portion 11 moves in the optical axis direction (the direction indicated by the arrow in FIG. 1).

【0013】接眼レンズ群13は複数のレンズで構成さ
れ、光学系2の後部で固定されている。接眼レンズ群1
3は、アイポイントAにおいて物体の像を観察した場合
に、標準的な視力を有するユーザーに対して視度が合う
ようになっている。
The eyepiece lens group 13 is composed of a plurality of lenses, and is fixed at the rear of the optical system 2. Eyepiece group 1
Reference numeral 3 indicates that when observing the image of the object at the eye point A, the diopter matches the user having the standard visual acuity.

【0014】光学系2はアフォーカル光学系であって、
可動部11に入射した物体像は、中間部12の後方で結
像し(図1において結像面をBとする)、ユーザーは接
眼レンズ群13を介して平行光となった物体像を観察す
るようになっている。焦点は、物体までの距離に応じ、
中間部12と接眼レンズ群13との間で結像するよう
に、可動部11を光軸方向に駆動することで調節され
る。一方、可動部11を光軸方向に駆動すると、結像面
Bが光軸方向に前後に動き、アイポイントAから接眼レ
ンズ群13を介して観察される像の視度が変化する。
The optical system 2 is an afocal optical system,
The object image incident on the movable portion 11 forms an image behind the intermediate portion 12 (an image forming surface is B in FIG. 1), and the user observes the object image converted into parallel light via the eyepiece group 13. It is supposed to. Focus depends on the distance to the object,
The movable unit 11 is adjusted by driving the movable unit 11 in the optical axis direction so that an image is formed between the intermediate unit 12 and the eyepiece lens group 13. On the other hand, when the movable section 11 is driven in the optical axis direction, the image plane B moves back and forth in the optical axis direction, and the diopter of the image observed from the eye point A via the eyepiece group 13 changes.

【0015】レンズ駆動部3は、モーター22と、ギヤ
23a,23b,23cからなるギヤ列23と、前述の
レンズ支持部11aに挿通するスクリューネジ21とか
ら構成されている。モーター22は、駆動制御部4の制
御によって回転し、その回転はギヤ列23を介してスク
リューネジ21に伝達される。スクリューネジ21は、
モーター22の回転に応じて、レンズ支持部11aが前
後いずれかの方向に移動するように回転する。
The lens driving section 3 is composed of a motor 22, a gear train 23 composed of gears 23a, 23b, 23c, and a screw 21 inserted into the lens support 11a. The motor 22 rotates under the control of the drive control unit 4, and the rotation is transmitted to the screw 21 via the gear train 23. The screw 21 is
In response to the rotation of the motor 22, the lens supporting portion 11a rotates so as to move in any of the front and rear directions.

【0016】駆動制御部4は、制御回路30と、AFセ
ンサ31と、視度調整部32とを備えている。AFセン
サ31は、観察する物体までの距離を測定し、制御回路
30に対して距離情報を出力する。視度調整部32は、
ユーザーが操作する+ボタンと−ボタン(図示略)とを
備え、+ボタンもしくは−ボタンそれぞれの操作に対応
して視度調整信号を制御回路30に出力する。
The drive control section 4 includes a control circuit 30, an AF sensor 31, and a diopter adjustment section 32. The AF sensor 31 measures a distance to an object to be observed, and outputs distance information to the control circuit 30. The diopter adjustment unit 32
It has a + button and a − button (not shown) operated by the user, and outputs a diopter adjustment signal to the control circuit 30 in response to each operation of the + button or the − button.

【0017】AFセンサ31から距離情報が入力する
と、制御回路30は、焦点を合わせるために適切な可動
部11の位置を計算し、その位置まで可動部11が移動
するようにモーター駆動信号を出力する。そして、この
モーター駆動信号に基いてモーター22が回転し、レン
ズ支持部11aを介して可動部11が所定の方向と距離
だけ移動するようになっている。
When distance information is input from the AF sensor 31, the control circuit 30 calculates an appropriate position of the movable unit 11 for focusing, and outputs a motor drive signal so that the movable unit 11 moves to that position. I do. Then, the motor 22 rotates based on the motor drive signal, and the movable section 11 moves by a predetermined direction and distance via the lens support section 11a.

【0018】一方、視度調整部32の+ボタンからの視
度調整信号が入力すると、制御回路30は、観察される
像の視度が+側に変化するようにモーター駆動信号を出
力する。また、視度調整部32の−ボタンが操作される
と、制御回路30は視度が−側に変化するように、モー
ター駆動信号を出力する。モーター22は、これらのモ
ーター駆動信号に応じて回転し、レンズ支持部11aを
介して可動部11を前方もしくは後方に駆動させる。こ
れにより結像面Bが光軸方向に移動し、視度は+側ある
いは−側に変化する。この視度調整操作においては、ユ
ーザーの視度調整部32の操作に応じた距離だけ、可動
部11が移動するようになっている。
On the other hand, when a diopter adjustment signal is input from the + button of the diopter adjuster 32, the control circuit 30 outputs a motor drive signal so that the diopter of the observed image changes to the + side. When the-button of the diopter adjustment unit 32 is operated, the control circuit 30 outputs a motor drive signal so that the diopter changes to the-side. The motor 22 rotates in response to these motor drive signals, and drives the movable section 11 forward or backward via the lens support section 11a. Thereby, the imaging plane B moves in the optical axis direction, and the diopter changes to the + side or the-side. In this diopter adjustment operation, the movable unit 11 moves by a distance corresponding to the operation of the diopter adjustment unit 32 by the user.

【0019】ユーザーが単眼鏡1を用いて物体を観察す
る際は、上記のような制御回路30の制御の下、可動部
11が所定の位置まで移動することによって自動的に焦
点調節が行われる。可動部11を駆動して焦点を調節し
た時点で、ユーザーの視力が合わず見にくい場合、視度
調整が行われる。ユーザーは、視度が自分の視力に合う
ように、接眼レンズ群13を覗きながら視度調整部32
の+ボタンまたは−ボタンを操作する。そして、これら
のボタン操作により、制御回路30およびレンズ駆動部
3を介して可動部11が駆動され、結像面Bが光軸方向
に移動して観察される像の視度が+側または−側に変化
する。ここで、アイポイントAの位置は、接眼レンズ群
13の位置で決まる。接眼レンズ群13は光学系2にお
いて固定されており、可動部11のみが移動して視度を
変化させているので、単眼鏡1においてはアイポイント
Aの移動は起こらずに視度が調整される。
When the user observes an object using the monocular 1, the focus is automatically adjusted by moving the movable portion 11 to a predetermined position under the control of the control circuit 30 as described above. . At the time when the movable unit 11 is driven to adjust the focus, if the user's visual acuity does not match and it is difficult to see, diopter adjustment is performed. The user adjusts the diopter adjustment unit 32 while looking through the eyepiece group 13 so that the diopter matches his or her eyesight.
Operate the + or-button. By operating these buttons, the movable unit 11 is driven via the control circuit 30 and the lens driving unit 3, and the image plane B is moved in the optical axis direction, so that the diopter of the observed image is positive or negative. Change to the side. Here, the position of the eye point A is determined by the position of the eyepiece lens group 13. Since the eyepiece group 13 is fixed in the optical system 2 and only the movable part 11 moves to change the diopter, the diopter is adjusted without moving the eye point A in the monocular 1. You.

【0020】以上の単眼鏡1によれば、接眼レンズ群1
3は光学系2において固定され、可動部11のみを光軸
方向に移動させて焦点調節と視度調整とを行っている。
従って、可動部11を駆動するレンズ駆動部3のみによ
って、焦点調節と視度調整との両方を行うことができる
ので、焦点調節用と視度調整用のレンズ駆動機構を別々
に設ける必要がなく、駆動機構に必要なスペースを小さ
くでき、またコストを抑えることができる。さらに、視
度調整は可動部11のみを駆動させて行い、接眼レンズ
群13を移動させずに行っているので、アイポイントA
が視度調整時に移動することがなく、より使用しやすく
なる。
According to the monocular 1 described above, the eyepiece lens group 1
Numeral 3 is fixed in the optical system 2, and moves only the movable portion 11 in the optical axis direction to perform focus adjustment and diopter adjustment.
Accordingly, both the focus adjustment and the diopter adjustment can be performed only by the lens driving unit 3 that drives the movable unit 11, so that it is not necessary to separately provide a lens driving mechanism for focus adjustment and a diopter adjustment. The space required for the drive mechanism can be reduced, and the cost can be reduced. Further, since the diopter adjustment is performed by driving only the movable unit 11 and without moving the eyepiece group 13, the eye point A
Does not move at the time of adjusting the diopter, which makes it easier to use.

【0021】なお、本発明は、上記実施の形態に限定さ
れるものではない。例えば、単眼鏡の対物レンズ群およ
び接眼レンズ群を構成するレンズの数や形状は、適宜選
択できる。
The present invention is not limited to the above embodiment. For example, the number and shape of the lenses constituting the objective lens group and the eyepiece lens group of the monocular can be appropriately selected.

【0022】[0022]

【発明の効果】請求項1記載の発明によれば、対物レン
ズ光学系と接眼レンズ光学系とを備える光学装置におい
て、対物レンズ光学系の焦点調節と、接眼レンズ光学系
の視度調整とが同一の箇所を駆動することで行われる。
従って、一つの駆動機構で、焦点調節も視度調整も行う
ことができるので、駆動機構を焦点調節用と視度調整用
とに別々に設ける必要がなく、その分スペースを小さく
でき、またコストも抑えることができる。
According to the first aspect of the present invention, in an optical device including an objective lens optical system and an eyepiece optical system, focus adjustment of the objective lens optical system and diopter adjustment of the eyepiece optical system are performed. It is performed by driving the same location.
Therefore, since the focus adjustment and the diopter adjustment can be performed by one drive mechanism, it is not necessary to separately provide the drive mechanism for the focus adjustment and the diopter adjustment, and the space can be reduced correspondingly, and the cost can be reduced. Can also be suppressed.

【0023】請求項2記載の発明によれば、対物レンズ
光学系の少なくとも一部を構成する可動部を駆動して焦
点調節が行われ、視度調整も、焦点調節と同一の可動部
を駆動することで行われる。従って、同一の駆動機構に
よって焦点調節と視度調整とを行うことができる。ま
た、視度調整を、対物レンズ光学系のみを駆動して行
い、接眼光学系は駆動させずに行うため、調整の際にア
イポイントが移動することがなく、より使用しやすくな
る。
According to the second aspect of the present invention, the focus adjustment is performed by driving the movable part constituting at least a part of the objective lens optical system, and the diopter adjustment drives the same movable part as the focus adjustment. It is done by doing. Therefore, focus adjustment and diopter adjustment can be performed by the same drive mechanism. In addition, since the diopter adjustment is performed by driving only the objective lens optical system and not driving the eyepiece optical system, the eye point does not move during the adjustment, which makes it easier to use.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明を適用した単眼鏡の要部構成を示す図で
ある。
FIG. 1 is a diagram showing a configuration of a main part of a monocular to which the present invention is applied.

【符号の説明】[Explanation of symbols]

1 単眼鏡(光学装置) 2 光学系 3 レンズ駆動部 4 駆動制御部 10 対物レンズ群(対物レンズ光学系) 11 可動部 11a レンズ支持部 12 中間部 13 接眼レンズ群(接眼レンズ光学系) 21 スクリューネジ 22 モーター 23 ギヤ列 30 制御回路 31 AFセンサ 32 視度調整部 DESCRIPTION OF SYMBOLS 1 Monocular (optical apparatus) 2 Optical system 3 Lens drive part 4 Drive control part 10 Objective lens group (Objective lens optical system) 11 Movable part 11a Lens support part 12 Intermediate part 13 Eyepiece lens group (eyepiece optical system) 21 Screw Screw 22 Motor 23 Gear train 30 Control circuit 31 AF sensor 32 Diopter adjustment unit

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) G03B 13/36 G02B 7/04 E 3/10 G03B 3/00 A 13/34 3/10 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat ゛ (Reference) G03B 13/36 G02B 7/04 E 3/10 G03B 3/00 A 13/34 3/10

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】対物レンズ光学系と接眼レンズ光学系とを
備える光学装置において、 対物レンズ光学系と接眼レンズ光学系は連続しており、 対物レンズ光学系の焦点調節と、接眼レンズ光学系の視
度調整が、同一の箇所を駆動することで行われることを
特徴とする光学装置。
1. An optical device having an objective lens optical system and an eyepiece optical system, wherein the objective lens optical system and the eyepiece optical system are continuous, and the focus adjustment of the objective lens optical system and the eyepiece optical system are performed. An optical device, wherein the diopter adjustment is performed by driving the same portion.
【請求項2】対物レンズ光学系の少なくとも一部を構成
する可動部を駆動することで焦点調節が行われ、 視度調整は、前記可動部を駆動することで行われること
を特徴とする請求項1記載の光学装置。
2. A focus adjustment is performed by driving a movable part constituting at least a part of the objective lens optical system, and a diopter adjustment is performed by driving the movable part. Item 1. The optical device according to Item 1.
JP2001037296A 2001-02-14 2001-02-14 Optical device Pending JP2002244048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001037296A JP2002244048A (en) 2001-02-14 2001-02-14 Optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001037296A JP2002244048A (en) 2001-02-14 2001-02-14 Optical device

Publications (1)

Publication Number Publication Date
JP2002244048A true JP2002244048A (en) 2002-08-28

Family

ID=18900445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001037296A Pending JP2002244048A (en) 2001-02-14 2001-02-14 Optical device

Country Status (1)

Country Link
JP (1) JP2002244048A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63191306U (en) * 1987-05-28 1988-12-09
JPH04342215A (en) * 1991-05-17 1992-11-27 Minolta Camera Co Ltd Binoculars
JPH10142478A (en) * 1996-11-11 1998-05-29 Minolta Co Ltd Observation optical device
JPH10148764A (en) * 1996-11-20 1998-06-02 Olympus Optical Co Ltd Binoculars
JPH10197776A (en) * 1997-01-13 1998-07-31 Asahi Optical Co Ltd Binoculars
JPH10319325A (en) * 1997-05-21 1998-12-04 Canon Inc Binoculars

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63191306U (en) * 1987-05-28 1988-12-09
JPH04342215A (en) * 1991-05-17 1992-11-27 Minolta Camera Co Ltd Binoculars
JPH10142478A (en) * 1996-11-11 1998-05-29 Minolta Co Ltd Observation optical device
JPH10148764A (en) * 1996-11-20 1998-06-02 Olympus Optical Co Ltd Binoculars
JPH10197776A (en) * 1997-01-13 1998-07-31 Asahi Optical Co Ltd Binoculars
JPH10319325A (en) * 1997-05-21 1998-12-04 Canon Inc Binoculars

Similar Documents

Publication Publication Date Title
JP4965800B2 (en) Image display system
JPH05232373A (en) Device for detecting direction of line of sight for camera
SE520949C2 (en) Digital camera with viewfinder for depth-of-field imaging
JPH1073783A (en) Video observation system
JP2000338556A (en) Finder device for camera
US5504547A (en) Camera provided with binocular stereoscopic finder
US5694628A (en) View finder for camera
JP2001290101A (en) System for detecting will to adjust visual point in length direction and method for driving the will and spectacles for automatic correction of perspective
JPH11112851A (en) Binocular with electronic camera
JP2002244048A (en) Optical device
JP2003107367A (en) Observation device with photographing function
JP2002010293A (en) Stereoscopic image display device
JPH06276459A (en) Video display device capable of adjusting eye position interval
JP3186212B2 (en) Eye-gaze input camera
JPH0556924A (en) Video camera
JP4643568B2 (en) Observation device and binoculars
JP3189328B2 (en) Observation device
JP4609844B2 (en) Stereoscopic fundus camera
JP3548313B2 (en) Binocular focusing method and binoculars having focusing means
US6532343B1 (en) Camera finder device
JPH08194189A (en) Stereoscopic image reproducing device
JP4581072B2 (en) Binoculars and telescope
JP3184542B2 (en) camera
JP2024052503A (en) Lens device and imaging device
JP2010243933A (en) Binocular optical system and binocular

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080111

A977 Report on retrieval

Effective date: 20091217

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100105

A02 Decision of refusal

Effective date: 20100427

Free format text: JAPANESE INTERMEDIATE CODE: A02