JPH09101581A - Stereo camera - Google Patents

Stereo camera

Info

Publication number
JPH09101581A
JPH09101581A JP25997995A JP25997995A JPH09101581A JP H09101581 A JPH09101581 A JP H09101581A JP 25997995 A JP25997995 A JP 25997995A JP 25997995 A JP25997995 A JP 25997995A JP H09101581 A JPH09101581 A JP H09101581A
Authority
JP
Japan
Prior art keywords
pitch
stereo camera
eyepieces
pentaprisms
reticles
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
Application number
JP25997995A
Other languages
Japanese (ja)
Other versions
JP2857355B2 (en
Inventor
Minoru Inaba
稔 稲葉
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP25997995A priority Critical patent/JP2857355B2/en
Publication of JPH09101581A publication Critical patent/JPH09101581A/en
Application granted granted Critical
Publication of JP2857355B2 publication Critical patent/JP2857355B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Cameras In General (AREA)
  • Stereoscopic And Panoramic Photography (AREA)

Abstract

PROBLEM TO BE SOLVED: To expand the picture region of a stereo camera provided with a dual left and right reflex finder and to make the observation of a finder picture easy by setting the pitch between photographic picture frames wider than the one between both eyepieces. SOLUTION: The pitches between the center axes of both pentagonal prisms 13 and 14 and the eyepieces 21 and 22 are narrower than those between both reticles 23 and 24 and the photographic picture frames and almost equal to the standard both-eye interval of a human being, that is, set at about 63mm. On the other hand, the stereo camera is constituted so that the pitch between the reticles 23 and 24 is set wider, for instance at about 70mm, but the entire regions of the reticles 23 and 24 are visually seen by using the pentagonal prisms 13 and 14 whose widths are larger than those of the reticles 23 and 24. Thus, the pitch between the photographic picture frames is set wider than that of the eyepieces 21 and 22, so that the width of the photographic picture frame can be made larger to contribute to the improvement of image quality.

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】この発明は、ステレオカメラ
に関するものであり、特に、レフレックスファインダを
備えたステレオカメラに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereo camera, and more particularly to a stereo camera equipped with a reflex finder.

【0002】[0002]

【従来の技術】135タイプ等のロールフィルムを使用
するステレオカメラは、フィルムを無駄なく使用するた
めに、左右一対の撮影画面の間に他の撮影画面が配列さ
れるようにフィルム送り機構が構成されている。即ち、
図4に示すようにフィルムFの先頭側から第1組の右画
面1R、第2組の右画面2R、第1組の左画面1L、第
2組の左画面2L、…の順に配列される。
2. Description of the Related Art In a stereo camera using a roll film of 135 type or the like, in order to use the film without waste, a film feeding mechanism is arranged so that other photographing screens are arranged between a pair of left and right photographing screens. Has been done. That is,
As shown in FIG. 4, the first set of right screens 1R, the second set of right screens 2R, the first set of left screens 1L, the second set of left screens 2L, ... Are arranged in this order from the leading side of the film F. .

【0003】二系統の一眼レフレックス光学系を複合し
てステレオカメラを構成する場合は、左右の接眼レンズ
が人間の両眼のピッチとほぼ等しいピッチで配置され、
左右の撮影レンズの軸間ピッチ並びに左右の画面のピッ
チも左右の接眼レンズのピッチと同一となる。従って、
図4に示したように、左右一組の画面間に他の組の画面
が配列される場合は、隣接する画面のピッチが左右の画
面ピッチPS の1/2となり、画面間にギャップを設け
る必要から一画面の横幅W1 はPS /2以下に制限され
る。
When a stereo camera is constructed by combining two single-lens reflex optical systems, the left and right eyepieces are arranged at a pitch substantially equal to the pitch of both eyes of a human being.
The pitch between the axes of the left and right photographing lenses and the pitch of the left and right screens are the same as the pitch of the left and right eyepieces. Therefore,
As shown in FIG. 4, when another set of screens is arranged between one set of left and right screens, the pitch of adjacent screens becomes 1/2 of the left and right screen pitches P S , and a gap is created between the screens. The width W 1 of one screen is limited to P S / 2 or less because it is necessary to provide it.

【0004】[0004]

【発明が解決しようとする課題】写真の画質はフィルム
の画面面積に比例して向上し、良質な写真を得るために
は画面面積が大きいほうが望ましい。しかしながら、レ
フレックス形ステレオカメラの場合は、人間の両眼のピ
ッチによって画面の幅寸法が制約されるという問題があ
り、画面のサイズの拡大が困難である。
The image quality of a photograph is improved in proportion to the screen area of the film, and it is desirable that the screen area is large in order to obtain a good quality photograph. However, in the case of a reflex type stereo camera, there is a problem that the width of the screen is restricted by the pitch of both eyes of a human, and it is difficult to increase the size of the screen.

【0005】そこで、ステレオスライドの画面幅を可及
的に拡大して画質を向上するために解決すべき技術的課
題が生じてくるのであり、本発明は上記課題を解決する
ことを目的とする。
Therefore, there arises a technical problem to be solved in order to expand the screen width of the stereo slide as much as possible to improve the image quality, and an object of the present invention is to solve the above problem. .

【0006】[0006]

【課題を解決するための手段】この発明は、上記目的を
達成するために提案するものであり、カメラボディに二
系統のレフレックスファインダ並びに撮影レンズを平行
に配置し、前記二本の撮影レンズの入射像を両眼視でき
るように形成したステレオカメラにおいて、左右の撮影
画面の中心ピッチ並びにレフレックスファインダの左右
の焦点板の中心ピッチを左右のペンタプリズムの中心ピ
ッチよりも広く形成し、前記焦点板が左右対称的にペン
タプリズム及び接眼レンズの外側方向へ変位しているス
テレオカメラ、及び上記左右のペンタプリズム及び接眼
レンズにピッチ調節機構を介装し、ペンタプリズム及び
接眼レンズの左右ピッチを調節可能としたステレオカメ
ラを提供するものである。
DISCLOSURE OF THE INVENTION The present invention is proposed in order to achieve the above-mentioned object, and two reflex viewfinders and a taking lens are arranged in parallel in a camera body, and the two taking lenses are provided. In a stereo camera formed so that the incident image of can be viewed with both eyes, the center pitch of the left and right shooting screens and the center pitch of the left and right focusing screens of the reflex finder are formed wider than the center pitch of the left and right pentaprisms. A stereo camera in which the focusing screen is symmetrically displaced in the outward direction of the pentaprism and the eyepiece lens, and a pitch adjusting mechanism is provided on the left and right pentaprisms and the eyepiece lens to adjust the left and right pitches of the pentaprism and the eyepiece lens. The present invention provides an adjustable stereo camera.

【0007】[0007]

【発明の実施の形態】以下、この発明の実施の形態を図
1乃至図3に従って詳述する。図1は請求項1記載のス
テレオカメラ11を示し、カメラボディ12に2個のペ
ンタプリズム13,14、2本の撮影レンズ15,16
が装着されている。2本の撮影レンズ15,16を支持
するレンズマウントプレート17は、カメラボディ12
に対して前後摺動可能に組付けられており、カメラボデ
ィ12の上部の右手側(図1において左)に設けたフォ
ーカシングダイヤル18を回転することによってレンズ
マウントプレート17を前後に移動させてフォーカシン
グ調節を行う。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to FIGS. FIG. 1 shows a stereo camera 11 according to claim 1, wherein two pentaprisms 13, 14 and two taking lenses 15, 16 are provided in a camera body 12.
Is installed. The lens mount plate 17 that supports the two taking lenses 15 and 16 includes a camera body 12
The lens mount plate 17 is mounted so as to be slidable back and forth with respect to the camera body 12, and the lens mount plate 17 is moved forward and backward by rotating a focusing dial 18 provided on the right hand side (left in FIG. 1) of the camera body 12. Make adjustments.

【0008】カメラボディ12内にはパトローネ入35
mmフィルムが装填され、フォーカシングダイヤル18の
後方の巻上げレバー19を回動してフィルム並びにシャ
ッターの巻上げを行う。カメラボディ12の左右のフィ
ルム露光面の前面にはフォーカルプレーンシャッタ(図
示せず)が配設されており、シャッタボタン20を押す
と左右のシャッタ機構が連動してレフレックスミラーの
上昇、シャッタ開閉動作、レフレックスミラーの初期位
置への復帰が逐次制御されることは一般の一眼レフレッ
クスカメラと同様である。
The camera body 12 contains a cartridge 35.
The mm film is loaded, and the winding lever 19 behind the focusing dial 18 is rotated to wind the film and the shutter. A focal plane shutter (not shown) is provided on the front of the left and right film exposure surfaces of the camera body 12. When the shutter button 20 is pressed, the left and right shutter mechanisms are interlocked to raise the reflex mirror and open / close the shutter. The operation and the return of the reflex mirror to the initial position are sequentially controlled, as in a general single-lens reflex camera.

【0009】2本の撮影レンズ15,16への入射光
は、ペンタプリズム13,14の下方に配置したクイッ
クリターンミラーを介してその上方の焦点板23,24
に左右反転像として結像し、焦点板23,24の上方に
装着したペンタプリズム13,14によって更に左右を
反転された正立像をペンタプリズム13,14の背面側
の接眼レンズ21,22を介して立体視することができ
る。
Light incident on the two taking lenses 15 and 16 is transmitted through a quick return mirror arranged below the pentaprisms 13 and 14 and focusing screens 23 and 24 above them.
An erect image that is formed as a left-right inverted image on the back side of the pentaprisms 13 and 14 and is further inverted left and right by the pentaprisms 13 and 14 mounted above the focusing screens 23 and 24. Can be viewed stereoscopically.

【0010】図2に示すように、左右のペンタプリズム
13,14並びに接眼レンズ21,22の中心軸間ピッ
チP1 は、左右の焦点板23,24並びに撮影画面の中
心間ピッチP2 よりも狭く、且つ、人間の標準的な両眼
間隔とほぼ等しい63mm前後で固定されている。一方、
焦点板23,24の左右ピッチP2 は、例えば70mm程
度と広く設定されているが、焦点板23,24よりも横
幅の広いペンタプリズム13,14を用いて焦点板2
3,24の全画面領域を目視できるように形成されてい
る。
As shown in FIG. 2, the pitch P 1 between the center axes of the left and right pentaprisms 13 and 14 and the eyepieces 21 and 22 is larger than the center pitch P 2 between the left and right focusing plates 23 and 24 and the photographing screen. It is narrow and fixed at about 63 mm, which is almost the same as the standard human eye distance. on the other hand,
The left and right pitch P 2 of the focusing screens 23 and 24 is set to be wide, for example, about 70 mm, but the focusing screen 2 is formed by using the penta prisms 13 and 14 having a wider width than the focusing plates 23 and 24.
It is formed so that the entire screen areas of 3, 24 can be viewed.

【0011】従って、ペンタプリズム13,14並びに
接眼レンズ21,22の軸心からみて焦点板23,24
が左右対称的に外側に位置し、ファインダ像はペンタプ
リズム13,14によって左右反転して見えるので、左
右の焦点板23,24上の画像は、それぞれペンタプリ
ズム13,14の軸心を対称軸として内側にみえること
になるが、人間にとって何等かの画像を注視する場合
は、左右の視線が平行よりもやや内側を向いた方が見や
すいようである。
Therefore, the focusing plates 23, 24 are seen from the axial centers of the pentaprisms 13, 14 and the eyepieces 21, 22.
Are symmetrically positioned on the outer side, and the finder images appear to be reversed by the pentaprisms 13 and 14, so that the images on the left and right focusing screens 23 and 24 are symmetric with respect to the axes of the pentaprisms 13 and 14, respectively. However, when looking at some image, it seems easier for humans to see the left and right lines of sight slightly inward rather than parallel.

【0012】図3は請求項2記載のステレオカメラ31
を示し、ペンタプリズム32,33並びにペンタプリズ
ム32,33へ一体的に取付けられた接眼レンズ34,
35の左右ピッチが調節可能となっている。カメラボデ
ィ36の上面のペンタプリズム装着部位の前後両縁には
左右方向のガイドレール37,38が形成され、ペンタ
プリズム32,33の底面前後両縁にガイドレール3
7,38と嵌合するスライダ部39,40を形成してペ
ンタプリズム32,33が左右摺動自在に装着されてい
る。
FIG. 3 shows a stereo camera 31 according to claim 2.
And the pentaprisms 32 and 33 and the eyepieces 34 integrally attached to the pentaprisms 32 and 33,
The left and right pitch of 35 can be adjusted. Left and right guide rails 37 and 38 are formed on the front and rear edges of the upper portion of the camera body 36 where the pentaprism is mounted, and guide rails 3 and 38 are formed on the bottom and front and rear edges of the pentaprism 32 and 33.
The pentaprisms 32 and 33 are mounted so as to be slidable to the left and right by forming slider portions 39 and 40 that fit with the 7, 38.

【0013】左右のペンタプリズム32,33には夫々
ガイドレール37,38と平行に内側方向へ延びるラッ
ク41,42が設けられて2本のラック41,42のギ
ヤ面が対向し、カメラボディ36の上面中央部に軸着し
たピニオン43に前後のラック41,42が噛合してフ
ァインダピッチ調節機構を構成している。
The left and right pentaprisms 32 and 33 are provided with racks 41 and 42 extending inwardly in parallel with the guide rails 37 and 38, respectively, and the gear surfaces of the two racks 41 and 42 face each other, and the camera body 36. The front and rear racks 41 and 42 are meshed with a pinion 43 axially attached to the central portion of the upper surface of the above to form a finder pitch adjusting mechanism.

【0014】ピニオン43と同軸のファインダピッチ調
節ダイヤル44を回転することにより、左右のペンタプ
リズム32,33は左右対称的に外側或いは内側へ移動
する。ペンタプリズム32,33のピッチは、ペンタプ
リズム32,33の軸心と焦点板45,46の中心線と
が夫々一致する位置を最大ピッチとして接近する方向へ
調節可能となっており、接眼レンズ34,35の左右ピ
ッチを撮影者に最適なピッチに調節できる。
By rotating the finder pitch adjusting dial 44 coaxial with the pinion 43, the left and right pentagonal prisms 32 and 33 are moved symmetrically outward or inward. The pitch of the pentaprisms 32 and 33 can be adjusted in the approaching direction with the maximum pitch at the positions where the axial centers of the pentaprisms 32 and 33 and the center lines of the focusing screens 45 and 46 match, respectively. The left and right pitches of 35 can be adjusted to the optimum pitch for the photographer.

【0015】また、図示は省略するが、ファインダピッ
チ調節機構は上記のものの他に送りネジを用いてもよ
い。一端側に左ネジを切り、他端側に右ネジを切った送
りネジをカメラボディに左右方向へ配設し、左右のファ
インダユニットの一方に左メネジ、他方に右メネジを設
けて夫々送りネジに噛合させれば、送りネジの回転方向
に応じて左右のファインダユニットが接近或いは離反す
るピッチ調節機構を構成できる。
Although not shown, the finder pitch adjusting mechanism may use a feed screw other than the above. A left-hand threaded screw on one end and a right-hand threaded screw on the other end are arranged in the left-right direction on the camera body.A left female thread is provided on one of the left and right finder units, and a right female thread is provided on the other side. By engaging with, it is possible to configure a pitch adjusting mechanism in which the left and right finder units approach or separate according to the rotation direction of the feed screw.

【0016】尚、本発明は、本発明の技術的範囲内にお
いて種々の改変をなすことができ、本発明がそれらの改
変されたものに及ぶことは当然である。
The present invention can be variously modified within the technical scope of the present invention, and it goes without saying that the present invention covers those modifications.

【0017】[0017]

【発明の効果】以上説明したように、請求項1記載のス
テレオカメラは、左右の接眼レンズのピッチよりも撮影
画面のピッチを広く設定しているため、撮影画面の横幅
を拡大でき、画質の向上に寄与できる。また、画面ピッ
チの拡大によって左右の撮影レンズのピッチも拡大さ
れ、レンズの大口径化が可能になる等、レンズ設計の制
約が減少する利点もある。
As described above, in the stereo camera according to the first aspect, since the pitch of the photographing screen is set wider than the pitch of the left and right eyepieces, the width of the photographing screen can be increased and the image quality can be improved. Can contribute to improvement. Further, the pitch of the left and right photographing lenses is also enlarged by the enlargement of the screen pitch, which makes it possible to enlarge the diameter of the lens, which has the advantage of reducing restrictions on the lens design.

【0018】また、請求項2記載のステレオカメラは、
左右の接眼レンズのピッチを調節できるので、上記の効
果に加えて各人が最適な接眼レンズピッチとすることが
でき、実用性が著しく向上する。
The stereo camera according to claim 2 is
Since the pitch of the left and right eyepieces can be adjusted, in addition to the above effects, each person can have an optimum eyepiece lens pitch, and the practicality is remarkably improved.

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

【図1】請求項1記載のステレオカメラの正面図。FIG. 1 is a front view of a stereo camera according to claim 1.

【図2】図1のステレオカメラの焦点板とペンタプリズ
ムの位置関係を示す解説図。
FIG. 2 is an explanatory diagram showing a positional relationship between a focusing screen and a pentaprism of the stereo camera of FIG.

【図3】請求項2記載のステレオカメラのファインダピ
ッチ調節機構の解説図。
FIG. 3 is an explanatory view of a viewfinder pitch adjusting mechanism of the stereo camera according to claim 2;

【図4】ステレオカメラの撮影画面配列を示す35mmフ
ィルムの正面図。
FIG. 4 is a front view of a 35 mm film showing a shooting screen arrangement of a stereo camera.

【符号の説明】[Explanation of symbols]

11,31 ステレオカメラ 12,36 カメラボディ 13,14,32,33 ペンタプリズム 15,16 撮影レンズ 21,22,34,35 接眼レンズ 23,24,45,46 焦点板 37,38 ガイドレール 39,40 スライダ部 41,42 ラック 43 ピニオン 44 ファインダピッチ調節ダイヤル 11,31 Stereo camera 12,36 Camera body 13,14,32,33 Penta prism 15,16 Photographing lens 21,22,34,35 Eyepiece 23,24,45,46 Focus plate 37,38 Guide rail 39,40 Slider 41, 42 Rack 43 Pinion 44 Finder pitch adjustment dial

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 カメラボディに二系統のレフレックスフ
ァインダ並びに撮影レンズを平行に配置し、前記二本の
撮影レンズの入射像を両眼視できるように形成したステ
レオカメラにおいて、左右の撮影画面の中心ピッチ並び
にレフレックスファインダの左右の焦点板の中心ピッチ
を左右のペンタプリズムの中心ピッチよりも広く形成
し、前記焦点板が左右対称的にペンタプリズム及び接眼
レンズの外側方向へ変位していることを特徴とするステ
レオカメラ。
1. A stereo camera in which two systems of reflex viewfinders and photographing lenses are arranged in parallel in a camera body so that an incident image of the two photographing lenses can be viewed with both eyes, The center pitch and the center pitch of the left and right focusing plates of the reflex finder are formed wider than the center pitch of the left and right pentaprisms, and the focusing plates are symmetrically displaced outward of the pentaprisms and the eyepieces. Stereo camera characterized by.
【請求項2】 上記左右のペンタプリズム及び接眼レン
ズにピッチ調節機構を介装し、ペンタプリズム及び接眼
レンズの左右ピッチを調節可能としたことを特徴とする
ステレオカメラ。
2. A stereo camera characterized in that a pitch adjusting mechanism is interposed between the left and right pentaprisms and the eyepieces so that the left and right pitches of the pentaprisms and the eyepieces can be adjusted.
JP25997995A 1995-10-06 1995-10-06 Stereo camera Expired - Lifetime JP2857355B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25997995A JP2857355B2 (en) 1995-10-06 1995-10-06 Stereo camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25997995A JP2857355B2 (en) 1995-10-06 1995-10-06 Stereo camera

Publications (2)

Publication Number Publication Date
JPH09101581A true JPH09101581A (en) 1997-04-15
JP2857355B2 JP2857355B2 (en) 1999-02-17

Family

ID=17341598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25997995A Expired - Lifetime JP2857355B2 (en) 1995-10-06 1995-10-06 Stereo camera

Country Status (1)

Country Link
JP (1) JP2857355B2 (en)

Also Published As

Publication number Publication date
JP2857355B2 (en) 1999-02-17

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