JPH08201906A - Camera provided with data imprinting device - Google Patents

Abstract

PURPOSE: To obtain a camera provided with a data imprinting device for forming data such as a date at positions on a film surface different from each other between a normal photographing time and a panoramic photographing time. CONSTITUTION: The camera is provided with a switching means for selectively switching a photographing state between a first photographing state and a second photographing state respectively having photographic picture frames different from each other and exposing an object image on a photosensitive surface and a data imprinting system of selectively imprinting the data in a first area and a second area respectively having photosensitive surfaces different from each other. The data imprinting system is provided with a first lens 2, an optical path changing means 7 and a second lens 13. By changing an air gap between the first and the second lenses 2 and 13 linking with the switching means and moving the changing means 7 and the lens 13, the data is selectively imprinted in the first and the second areas respectively having photosensitive surfaces different from each other. The conditional expression of 0.1<f2/f1<0.7 is satisfied when the focal length of the first and the second lenses 2 and 13 are respectively defined as f1 and f2.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明はデータ写し込み装置を有
したカメラに関し、例えばフルサイズの通常撮影（第１
撮影状態）と横長サイズのパノラマ撮影（第２撮影状
態）等のフィルムへの切換露光動作に伴ない、該フィル
ムの互いに異なる領域に日付等のデータを撮影状態に応
じて切換えて写し込むようにした、例えばレンズシャッ
ターカメラ等に好適なデータ写し込み装置を有したカメ
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 camera having a data imprinting device, for example, full-size normal photographing (first
Shooting state) and landscape-oriented panoramic shooting (second shooting state), etc. Switching to film accompanying the exposure operation, data such as date is switched and imprinted in different areas of the film according to the shooting state. The present invention also relates to a camera having a data imprinting device suitable for, for example, a lens shutter camera.

【０００２】[0002]

【従来の技術】従来より被写体像のフィルムへの露光動
作に伴なって、該フィルムの撮影範囲内の一部に日付等
のデータを同時に写し込むことのできるデータ写し込み
装置を有したカメラが種々と提案されている。2. Description of the Related Art Conventionally, a camera having a data imprinting device capable of imprinting data such as the date on a part of the photographing range of the film at the same time as the exposure of the object image onto the film is known. Various proposals have been made.

【０００３】一方、近年３５ｍｍフィルムカメラでは２
４×３６ｍｍのフルサイズの領域に被写体像の全面露光
を行なう通常撮影の他に、その画面の一部をトリミング
することによって、例えば画面の上側と下側とをカット
することによって横長（例えば縦横比９／１６）の所謂
パノラマ撮影ができるようにしたカメラが種々と提案さ
れている。On the other hand, in the 35 mm film camera in recent years, 2
In addition to the normal shooting in which the entire area of the subject image is exposed in a full-size area of 4 × 36 mm, a part of the screen is trimmed, for example, the upper side and the lower side of the screen are cut to be horizontally long (for example, vertically and horizontally). Various cameras capable of so-called panoramic photography with a ratio of 9/16) have been proposed.

【０００４】一般にこのようなカメラにおいて日付等の
データはフィルム上の撮影範囲内で、かつ画面の隅に写
し込まれる。そうした場合、例えば画面（フルサイズ）
の上側あるいは下側にデータを写し込むと、通常撮影で
は画面内に写し込むことができるが、画面の上下をカッ
トするパノラマ撮影においてはデータを写し込めない場
合が生じてくる。Generally, in such a camera, data such as the date is imprinted within the photographing range on the film and at the corner of the screen. In that case, for example, the screen (full size)
If data is imprinted on the upper side or lower side of the image, it can be imprinted on the screen in normal photography, but in panoramic photography in which the upper and lower parts of the screen are cut, data may not be imprinted.

【０００５】そこで従来は撮影状況に応じてフィルムの
異なった領域にそれぞれデータを写し込むようにしたデ
ータ写し込み装置を有したカメラが、例えば特開平４−
３３３０３４号公報や特開平４−３３３８３７号公報等
で種々と提案されている。Therefore, conventionally, a camera having a data imprinting device for imprinting data in different areas of a film according to the photographing situation is disclosed in, for example, Japanese Unexamined Patent Publication No. Heisei 4-
Various proposals have been made in Japanese Patent No. 333034, Japanese Patent Laid-Open No. 4-333837, and the like.

【０００６】これらの公報では半透過ミラーを用いて１
つの光源から発っせられた光束を、該半透過ミラーによ
り２つに分岐させ、撮影状況に応じて１つの光路を選択
して透過型ＬＣＤパネル上に縦１列の２ケ所に設けられ
た写し込みデータ表示部のいずか１つを透過照明するこ
とによりデータをフィルムの異なる領域にそれぞれ写し
込んでいる。In these publications, a semitransparent mirror is used.
The light flux emitted from one light source is split into two by the semi-transmissive mirror, one optical path is selected according to the shooting situation, and a copy is provided at two locations in a row on the transmissive LCD panel. The data is imprinted on different areas of the film by illuminating any one of the embedded data display sections.

【０００７】[0007]

【発明が解決しようとする課題】上記に示した特開平４
−３３３０３４号公報や特開平４−３３３８３７号公報
等で提案されているデータ写し込み装置を有したカメラ
では、透過型ＬＣＤパネルを用いている為、電気的要素
が複雑化し、かつコストが高くなるという問題点があっ
た。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In a camera having a data imprinting device proposed in Japanese Patent Laid-Open No. 333034 or Japanese Unexamined Patent Publication No. 4-333837, a transmissive LCD panel is used, so that electric elements are complicated and cost is increased. There was a problem.

【０００８】本発明は、例えばフルサイズの通常撮影
（第１撮影状態）と横長サイズのパノラマ撮影（第２撮
影状態）等のフィルムへの切換露光動作に伴ない、該フ
ィルムの互いに異なる領域に日付等のデータを撮影状態
に応じて切り換えて写しこむ際、機械的要素の簡素化を
図りつつ、所定の倍率で高精度に写し込むことのできる
データ写し込み装置を有したカメラの提供を目的とす
る。According to the present invention, in accordance with the switching exposure operation to the film such as full-size normal shooting (first shooting state) and landscape-oriented panoramic shooting (second shooting state), for example, different areas of the film are displayed. An object of the present invention is to provide a camera having a data imprinting device capable of imprinting data such as date with high precision at a predetermined magnification while simplifying mechanical elements when imprinting by switching according to photographing conditions. And

【０００９】[0009]

【課題を解決するための手段】本発明のデータ写し込み
装置を有したカメラは、撮影画面の異なる第１撮影状態
と第２撮影状態とを選択的に切り換えて感光面に被写体
像を露光する切換手段と、該感光面の異なる第１領域と
第２領域に選択的にデータ表示部に表示したデータを写
し込むデータ写し込み系とを有し、該データ写し込み系
は該データ表示部側から順に第１レンズと光路変更手段
そして第２レンズとを有し、該第１レンズと該第２レン
ズの２つのレンズの空気間隔を該切換手段に連動して変
化させると共に該光路変更手段と該第２レンズとを移動
させることにより、該感光面の異なる第１領域と第２領
域とに選択的にデータを写し込み、該第１レンズと該第
２レンズの焦点距離を各々ｆ１，ｆ２としたとき ０．１＜ｆ２／ｆ１＜０．７ なる条件を満足することを特徴としている。A camera having a data imprinting device of the present invention selectively exposes a subject image on a photosensitive surface by selectively switching between a first photographing state and a second photographing state of different photographing screens. And a data imprinting system for imprinting the data selectively displayed on the data display section on the first area and the second area of the photosensitive surface, the data imprinting system being on the data display section side. A first lens, an optical path changing unit, and a second lens in this order, changing the air gap between the two lenses, the first lens and the second lens, in conjunction with the switching unit and the optical path changing unit. By moving the second lens, the data is selectively imaged in the first region and the second region of the photosensitive surface which are different from each other, and the focal lengths of the first lens and the second lens are f1 and f2, respectively. 0.1 <f2 / f1 <0 It is characterized by satisfying the condition of 0.7.

【００１０】特に前記第２レンズと前記光路変更手段は
一体的に構成されていることや、前記第１レンズと前記
第２レンズは共に正の屈折力を有し、前記データ表示部
と該第１レンズにおけるデータ表示部側の主点との間隔
をＳ１としたとき ０．４＜Ｓ１／ｆ１＜１．１ なる条件を満足することや、前記第１レンズと前記第２
レンズは共に１枚のレンズより成り、該第１レンズのデ
ータ表示部側のレンズ面の曲率半径をＲ１、該第１レン
ズの感光面側のレンズ面の曲率半径をＲ２としたとき １＜（Ｒ１＋Ｒ２）／（Ｒ１−Ｒ２）＜９ なる条件を満足することや、前記第１レンズと前記第２
レンズは共にプラスチック材料より成り、該第１レンズ
と該第２レンズの各レンズ面のうち少なくとも１つのレ
ンズ面には非球面が施されていること等を特徴としてい
る。In particular, the second lens and the optical path changing means are integrally formed, and the first lens and the second lens both have a positive refractive power, and the data display section and the second lens Satisfying the condition of 0.4 <S1 / f1 <1.1, where S1 is the distance from the principal point on the data display side of one lens, and the first lens and the second lens.
Both lenses are composed of one lens, and the radius of curvature of the lens surface of the first lens on the data display portion side is R1, and the radius of curvature of the lens surface of the first lens on the photosensitive surface side is R2. 1 <( R1 + R2) / (R1-R2) <9, the first lens and the second lens
The lenses are both made of a plastic material, and at least one of the lens surfaces of the first lens and the second lens has an aspherical surface.

【００１１】[0011]

【実施例】図１は本発明の実施例１の光学系の要部概略
図である。EXAMPLE 1 FIG. 1 is a schematic view of a main part of an optical system of Example 1 of the present invention.

【００１２】同図において１はデータ（データ表示部）
であり、日付等の情報を表示するＬＥＤ等の発光部材よ
り成っている。In the figure, 1 is data (data display section)
It is composed of a light emitting member such as an LED for displaying information such as date.

【００１３】１０はデータ写し込み系であり、データ表
示部１側より順に正の屈折力を有する第１レンズ２と正
の屈折力を有する第２レンズ３と光路変更手段１１とを
有している。第２レンズ３は入射面３ａと内部反射面３
ｂそして射出面３ｃとを有したガラスブロックより成っ
ている。本実施例では内部反射面３ｂは光路変更手段１
１を兼ねている。Reference numeral 10 denotes a data imprinting system, which comprises a first lens 2 having a positive refractive power, a second lens 3 having a positive refractive power, and an optical path changing means 11 in order from the data display section 1 side. There is. The second lens 3 has an entrance surface 3a and an internal reflection surface 3
b and the exit surface 3c. In this embodiment, the internal reflection surface 3b is the optical path changing means 1
It also serves as 1.

【００１４】４は感光面であり、写真用カメラではフィ
ルムより成っている。５は感光面４のうちの第１領域、
６は感光面４のうちの第２領域である。Reference numeral 4 denotes a photosensitive surface, which is made of film in a photographic camera. 5 is the first area of the photosensitive surface 4,
6 is a second area of the photosensitive surface 4.

【００１５】本実施例では後述するように機械的な切換
手段に連動して第１レンズ２と第２レンズ３の２つのレ
ンズの空気間隔を変化させると共に光路変更手段１１と
該第２レンズ３とを感光面４に沿って移動させることに
より、該感光面４の互いに異なる第１領域５と第２領域
６とに選択的にデータ表示部１に表示したデータを写し
込んでいる。In the present embodiment, as will be described later, the air gap between the two lenses, the first lens 2 and the second lens 3, is changed in conjunction with the mechanical switching means, and the optical path changing means 11 and the second lens 3 are changed. By moving and along the photosensitive surface 4, the data displayed on the data display unit 1 is selectively imprinted on the first area 5 and the second area 6 which are different from each other on the photosensitive surface 4.

【００１６】本実施例において感光面４として、例えば
３５ｍｍフィルムを用いて画面全体に撮影レンズ（不図
示）により結像した被写体像を全面露光する通常撮影時
（第１撮影状態）のときは機械的な切換手段に連動して
光路変更手段１１と第２レンズ３とを図中実線で示す位
置（第１のレンズ配置）Ａに移動し停止させている。In the present embodiment, as the photosensitive surface 4, for example, a 35 mm film is used and the entire surface of the subject image formed by a taking lens (not shown) is exposed on the entire screen. The optical path changing means 11 and the second lens 3 are moved to a position (first lens arrangement) A shown by a solid line in the drawing and stopped there in conjunction with the automatic switching means.

【００１７】そしてフィルム４面への被写体像の露光動
作に伴なってデータ表示部１からの光束を第１レンズ２
と第２レンズ３を通して第１領域５に導光し、その面上
にデータ表示部１の像を結像露光している。Then, the light flux from the data display unit 1 is transferred to the first lens 2 in accordance with the exposure operation of the subject image on the film 4 surface.
Then, the light is guided to the first region 5 through the second lens 3 and the image of the data display unit 1 is formed and exposed on the surface thereof.

【００１８】又、フィルム４の画面のうちトリミングに
より有効画面の上下方向の所定領域を遮蔽し、横長の画
面として用いるパノラマ撮影（第２撮影状態）のときは
機械的な切換手段に連動して第１レンズ２と第２レンズ
３との空気間隔を変化させると共に光路変更手段１１と
該第２レンズ３とを移動させることにより、該第２レン
ズ３を図中実線で示す位置（第１のレンズ配置）Ａより
点線で示す位置（第２のレンズ配置）Ｂに移動し停止さ
せている。Further, in the screen of the film 4, a predetermined area in the vertical direction of the effective screen is shielded by trimming, and in panoramic shooting (second shooting state) used as a landscape screen, it is interlocked with mechanical switching means. By changing the air gap between the first lens 2 and the second lens 3 and moving the optical path changing means 11 and the second lens 3, the second lens 3 is moved to the position shown by the solid line in the figure (first The lens arrangement) A is moved to a position (second lens arrangement) B indicated by a dotted line and stopped.

【００１９】そしてフィルム４面への被写体像の露光動
作に伴なってデータ表示部１からの光束を第１レンズ２
と第２レンズ３を通して第２領域６に導光し、その面上
にデータ表示部１の像を結像露光している。Then, the light flux from the data display unit 1 is transferred to the first lens 2 in accordance with the exposure operation of the subject image on the film 4 surface.
Then, the light is guided to the second region 6 through the second lens 3 and the image of the data display unit 1 is imaged and exposed on the surface thereof.

【００２０】本実施例においては上述の如く光路変更手
段１１（第２レンズ３の内部反射面３ｂ）で光路を変更
することにより、例えばカメラ等にデータ写し込み装置
を配置するときにスペースの有効活用を可能としてい
る。In the present embodiment, the optical path is changed by the optical path changing means 11 (the internal reflection surface 3b of the second lens 3) as described above, so that the space is effective when the data imprinting device is arranged in, for example, a camera. It is possible to utilize.

【００２１】次にデータ写し込み系について説明する。Next, the data imprinting system will be described.

【００２２】本実施例におけるデータ写し込み系１０は
前述の如く第１レンズ２と第２レンズ３の２つのレンズ
を有し、切換手段に連動して２つのレンズの空気間隔を
変化させると共に光路変更手段１１と該第２レンズ３と
を移動させることにより、感光面４の互いに異なる第１
領域５と第２領域６に選択的にデータを写し込み、該第
１レンズ２と該第２レンズ３の焦点距離を各々ｆ１，ｆ
２としたとき ０．１＜ｆ２／ｆ２＜０．７ ‥‥‥‥（１） なる条件を満足するようにしている。The data imprinting system 10 in this embodiment has the two lenses, the first lens 2 and the second lens 3 as described above, and changes the air gap between the two lenses in conjunction with the switching means and the optical path. By moving the changing means 11 and the second lens 3, the first and different first photosensitive surfaces 4
Data is selectively imaged in the area 5 and the second area 6, and the focal lengths of the first lens 2 and the second lens 3 are f1 and f, respectively.
When it is set to 2, the condition of 0.1 <f2 / f2 <0.7 (1) is satisfied.

【００２３】条件式（１）は第１レンズ２と第２レンズ
３の焦点距離の比に関し、それぞれのレンズの屈折力を
適切に設定することにより、高い光学性能を維持しつつ
所定の倍率を得る為のものである。Conditional expression (1) relates to the ratio of the focal lengths of the first lens 2 and the second lens 3, and by appropriately setting the refracting power of each lens, a predetermined magnification is maintained while maintaining high optical performance. It is for getting.

【００２４】条件式（１）の上限値を越えると第２レン
ズ３の最終レンズ面から感光面（結像面）４までの距離
（バックフォーカス）が短くなってくるので良くない。
又条件式（１）の下限値を越えると第１レンズ２で発生
する諸収差量が増大し、収差補正が困難となってくるの
で良くない。If the upper limit of conditional expression (1) is exceeded, the distance (back focus) from the final lens surface of the second lens 3 to the photosensitive surface (imaging surface) 4 becomes short, which is not preferable.
If the lower limit of conditional expression (1) is exceeded, the amount of various aberrations generated in the first lens 2 will increase, making it difficult to correct aberrations.

【００２５】更に本実施例において高い光学性能を得る
為には第１領域５にデータを写し込む際のレンズ配置
（第１撮影状態のレンズ配置）と第２領域６にデータを
写し込む際のレンズ配置（第２撮影状態のレンズ配置）
のときの各々のバックフォーカスを略等しくすることが
望ましく、その為にはデータ表示部１と第１レンズ２に
おけるデータ表示部側（物体側）の主点との間隔をＳ１
としたとき ０．４＜Ｓ１／ｆ１＜１．１ ‥‥‥‥（２） なる条件を満足するようにしている。Further, in order to obtain high optical performance in this embodiment, the lens arrangement when the data is imprinted on the first area 5 (the lens arrangement in the first photographing state) and the data arrangement when the data is imprinted on the second area 6 are used. Lens arrangement (lens arrangement in the second shooting state)
At this time, it is desirable that the back focus be substantially equal to each other, and for that purpose, the distance between the data display unit 1 and the principal point of the first lens 2 on the data display unit side (object side) is S1.
Then, the condition 0.4 <S1 / f1 <1.1 (2) is satisfied.

【００２６】条件式（２）はそれぞれの撮影状態時にお
けるバックフォーカスに関するものであり、条件式
（２）の上限値を越えると第２撮影状態のレンズ配置の
ときのバックフォーカスが第１撮影状態のレンズ配置の
ときより短くなってその差が増大してくるので良くな
い。又条件式（２）の下限値を越えると第２撮影状態の
レンズ配置のときのバックフォーカスが第１撮影状態の
レンズ配置のときより短くなってその差が増大し、又第
２レンズ３が大型化してくるので良くない。Conditional expression (2) relates to the back focus in each photographing state, and when the upper limit of conditional expression (2) is exceeded, the back focus in the lens arrangement of the second photographing state is the first photographing state. It is not good because it becomes shorter than in the case of the lens arrangement and the difference increases. If the lower limit of conditional expression (2) is exceeded, the back focus in the lens arrangement in the second shooting state becomes shorter than that in the lens arrangement in the first shooting state, and the difference increases, and the second lens 3 It is not good because it becomes larger.

【００２７】更に本実施例において装置全体の小型化や
良好なる光学性能を得る為には、第１レンズ２と第２レ
ンズ３を各々１枚のレンズより構成し、該第１レンズ２
のデータ表示部１側のレンズ面と感光面４側のレンズ面
の曲率半径を各々Ｒ１，Ｒ２としたとき １＜（Ｒ１＋Ｒ２）／（Ｒ１−Ｒ２）＜９ ‥‥‥‥（３） なる条件を満足するようにしている。Further, in this embodiment, in order to reduce the size of the entire apparatus and obtain good optical performance, each of the first lens 2 and the second lens 3 is composed of one lens, and the first lens 2
When the radii of curvature of the lens surface on the data display portion 1 side and the lens surface on the photosensitive surface 4 side are R1 and R2, respectively, the condition 1 <(R1 + R2) / (R1-R2) <9 (3) To be satisfied.

【００２８】条件式（３）は第１レンズ２のレンズ形状
を規定するものであり、条件式（３）の上限値を越える
と該第１レンズ２のレンズ面のメニスカス形状が強くな
り、同時に該第１レンズ２の屈折力が弱くなり光学全長
が長くなってくるので良くない。又条件式（３）の下限
値を越えると第１レンズ２の屈折力が強くなりすぎ収差
補正が困難となってくるので良くない。Conditional expression (3) defines the lens shape of the first lens 2. When the upper limit of conditional expression (3) is exceeded, the meniscus shape of the lens surface of the first lens 2 becomes strong, and at the same time, This is not good because the refractive power of the first lens 2 becomes weak and the total optical length becomes long. If the lower limit of conditional expression (3) is exceeded, the refracting power of the first lens 2 becomes too strong, and it becomes difficult to correct aberrations.

【００２９】又、本実施例において更に良好なる光学性
能を維持しつつ低コスト化を達成する為には、第１レン
ズ２と第２レンズ３を各々プラスチック材料より形成
し、かつ球面収差を主に良好に補正する為に該第１レン
ズ２と該第２レンズ３の各レンズ面のうち少なくとも１
つのレンズ面に非球面を用いることが望ましい。Further, in order to achieve cost reduction while maintaining better optical performance in this embodiment, the first lens 2 and the second lens 3 are each made of a plastic material and spherical aberration is mainly caused. In order to satisfactorily correct, at least one of the lens surfaces of the first lens 2 and the second lens 3
It is desirable to use aspherical surfaces for the two lens surfaces.

【００３０】特に第１レンズ２の感光面側４のレンズ
面、あるいは第２レンズ３のデータ表示部１側のレンズ
面を非球面とすることにより効果的な収差補正ができ、
光学性能を更に向上させることができる。Particularly, by making the lens surface on the photosensitive surface side 4 of the first lens 2 or the lens surface on the data display portion 1 side of the second lens 3 an aspherical surface, effective aberration correction can be performed,
The optical performance can be further improved.

【００３１】図２は本発明の実施例２の光学系の要部概
略図である。同図において図１に示した要素と同一要素
には同符番を付している。FIG. 2 is a schematic view of the essential parts of an optical system according to a second embodiment of the present invention. In the figure, the same elements as those shown in FIG. 1 are designated by the same reference numerals.

【００３２】本実施例において前述の実施例１と異なる
点は、図１の実施例１では第２レンズ（ガラスブロッ
ク）内に光路変更手段としての内部反射面を設けて光路
の変更を行なったが、本実施例では第１レンズ２と第２
レンズ１３との間の光路中に光路変更手段としての反射
ミラー７を設け光路を変更し、機械的な切換手段に連動
して該第１レンズ２と該第２レンズ１３の２つのレンズ
の空気間隔を変化させると共に該反射ミラー７と該第２
レンズ１３とを移動させることにより、感光面４の互い
に異なる第１領域５と第２領域６とに選択的にデータ表
示部１のデータを写し込んだことである。その他の構成
及び光学的作用は前述の実施例１と略同様であり、これ
により同様な効果を得ている。In this embodiment, the difference from the above-described first embodiment is that in the first embodiment of FIG. 1, the internal reflection surface as the optical path changing means is provided in the second lens (glass block) to change the optical path. However, in this embodiment, the first lens 2 and the second lens 2
A reflection mirror 7 as an optical path changing means is provided in the optical path between the lens 13 and the optical path to change the optical path, and the air of the two lenses of the first lens 2 and the second lens 13 is linked with the mechanical switching means. The reflecting mirror 7 and the second
That is, by moving the lens 13, the data of the data display unit 1 is selectively imprinted on the first area 5 and the second area 6 which are different from each other on the photosensitive surface 4. Other configurations and optical functions are substantially the same as those in the above-described first embodiment, and the same effect is obtained.

【００３３】即ち、本実施例において通常撮影時（第１
撮影状態）のときは反射ミラー７及び第２レンズ１３を
図中実線の位置（第１のレンズ配置）Ａに停止させ、フ
ィルム４面への被写体像の露光動作に伴なってデータ表
示部１からの光束を第１レンズ２を通し反射ミラー７を
介して第２レンズ１３により第１領域５に導光し、その
面上にデータ表示部１の像を結像露光している。That is, in this embodiment, during normal photographing (first
In the (photographing state), the reflecting mirror 7 and the second lens 13 are stopped at the position (first lens arrangement) A indicated by the solid line in the figure, and the data display unit 1 The light flux from the first lens 2 is guided to the first region 5 by the second lens 13 via the first lens 2 and the reflection mirror 7, and the image of the data display unit 1 is formed and exposed on the surface thereof.

【００３４】又、パノラマ撮影（第２撮影状態）のとき
は機械的な切換手段に連動して第１レンズ２と第２レン
ズ１３との空気間隔を変化させると共に反射ミラー７及
び第２レンズ１３を図中実線で示す位置（第１のレンズ
配置）Ａより点線で示す位置（第２のレンズ配置）Ｂに
移動し停止させ、フィルム４面への被写体像の露光動作
に伴なってデータ表示部１からの光束を第１レンズ２を
通し反射ミラー７を介して第２レンズ１３により第２領
域６に導光し、その面上にデータ表示部１の像を結像露
光している。In panoramic photographing (second photographing state), the air gap between the first lens 2 and the second lens 13 is changed in conjunction with the mechanical switching means, and the reflecting mirror 7 and the second lens 13 are changed. Is moved from the position indicated by the solid line (first lens arrangement) A in the figure to the position indicated by the dotted line (second lens arrangement) B and stopped, and the data is displayed along with the exposure operation of the subject image on the film 4 surface. The light flux from the section 1 is guided through the first lens 2 through the reflection mirror 7 to the second area 6 by the second lens 13, and the image of the data display section 1 is imaged and exposed on the surface thereof.

【００３５】図３〜図６は各々本発明のデータ写し込み
系の第１レンズと第２レンズの２つのレンズの数値実施
例１〜４の第１撮影状態時のレンズ断面図、図７〜図１
４は各々本発明のデータ写し込み系の数値実施例１〜４
の諸収差図である。FIGS. 3 to 6 are sectional views of numerical data examples 1 to 4 of the first lens and the second lens of the data imprinting system of the present invention in the first photographing state, and FIGS. Figure 1
Reference numerals 4 to 4 are numerical examples 1 to 4 of the data imprinting system of the present invention.
FIG. 7 is a diagram of various types of aberration of FIG.

【００３６】各数値実施例１〜４において数値実施例
１，２は各々第２レンズ（ガラスブロック）内に光路変
更手段（内部反射面）を設けた場合、数値実施例３，４
は各々第１レンズと第２レンズとの間の光路中に光路変
更手段（反射ミラー）を設けた場合を示している。In each of Numerical Examples 1 to 4, Numerical Examples 1 and 2 are Numerical Examples 3 and 4 when optical path changing means (internal reflection surface) is provided in the second lens (glass block).
Shows the case where an optical path changing means (reflection mirror) is provided in the optical path between the first lens and the second lens.

【００３７】又、各数値実施例においてＲｉはデータ表
示部側より順に第ｉ番目のレンズ面の曲率半径、Ｄｉは
データ表示部側より第ｉ番目のレンズ厚及び空気間隔
（Ｄ₀はデータ表示部から第１レンズのデータ表示部側
のレンズ面までの距離）、Ｎｉとνｉは各々データ表示
部側より順に第ｉ番目のレンズのガラスの屈折率とアッ
ベ数である。In each numerical example, Ri is the radius of curvature of the i-th lens surface in order from the data display portion side, Di is the i-th lens thickness and air gap from the data display portion side (D ₀ is data display). Portion to the lens surface of the first lens on the data display portion side), Ni and νi are the refractive index and the Abbe number of the glass of the i-th lens in order from the data display portion side.

【００３８】非球面形状は光軸方向にＸ軸、光軸と垂直
方向にＹ軸、光の進行方向を正としＲを近軸曲率半径、
Ｂを非球面係数としたときThe aspherical shape has an X axis in the optical axis direction, a Y axis in a direction perpendicular to the optical axis, a positive light traveling direction, and R as a paraxial radius of curvature.
When B is an aspherical coefficient

【００３９】[0039]

【数１】 なる式で表わしている。[Equation 1] It is expressed by

【００４０】表−１に本発明の数値実施例１〜４と前述
した各条件式との関係を示す。 数値実施例１ 横倍率β=-0.5 〜-0.4 有効Ｆナンバー＝2.55〜2.49 D0= 7.00 R1= -3.632 D1= 1.00 N1= 1.49171 ν1= 57.4 R2= -2.744 D2= 1.00〜5.20 *R3= 2.132 D3= 1.00 N2= 1.49171 ν2= 57.4 R4= -3.965 ＊非球面係数（R3面） Ｂ＝-1.48118×10^-2 数値実施例２ 横倍率β=-0.5 〜-0.47 有効Ｆナンバー＝2.88〜2.85 D0= 7.00 R1= -4.137 D1= 1.00 N1= 1.49171 ν1= 57.4 *R2= -2.366 D2= 0.8 〜5.00 R3= 2.603 D3= 4.50 N2= 1.49171 ν2= 57.4 R4= -3.537 ＊非球面係数（R2面） Ｂ＝-1.3577 ×10^-2 数値実施例３ 横倍率β=-0.52〜-0.52 有効Ｆナンバー＝2.48〜2.52 D0= 6.00 R1= -8.838 D1= 1.20 N1= 1.49171 ν1= 57.4 R2= -2.612 D2= 5.00〜10.20 *R3= 2.023 D3= 1.20 N2= 1.49171 ν2= 57.4 R4=-14.674 ＊非球面係数（R3面） Ｂ＝-1.51849×10^-2 数値実施例４ 横倍率β=-0.47〜-0.46 有効Ｆナンバー＝2.41〜2.40 D0= 7.00 R1= -8.700 D1= 1.00 N1= 1.49171 ν1= 57.4 R2= -2.865 D2= 7.00〜11.20 *R3= 2.218 D3= 1.00 N2= 1.49171 ν2= 57.4 R4= -9.674 ＊非球面係数（R3面） Ｂ＝-1.30149×10^-2 Table 1 shows the relationship between the numerical embodiments 1 to 4 of the present invention and the above-mentioned conditional expressions. Numerical Example 1 Lateral magnification β = -0.5 to -0.4 Effective F number = 2.55 to 2.49 D0 = 7.00 R1 = -3.632 D1 = 1.00 N1 = 1.49171 ν1 = 57.4 R2 = -2.744 D2 = 1.00 to 5.20 * R3 = 2.132 D3 = 1.00 N2 = 1.49171 ν2 = 57.4 R4 = -3.965 * Aspherical surface coefficient (R3 surface) B = -1.48118 × 10 ^-2 Numerical value example 2 Lateral magnification β = -0.5 to -0.47 Effective F number = 2.88 to 2.85 D0 = 7.00 R1 = -4.137 D1 = 1.00 N1 = 1.49171 ν1 = 57.4 * R2 = -2.366 D2 = 0.8 ~ 5.00 R3 = 2.603 D3 = 4.50 N2 = 1.49171 ν2 = 57.4 R4 = -3.537 * Aspheric coefficient (R2 surface) B = -1.3577 × 10 ^-2 Numerical value example 3 Lateral magnification β = -0.52 to -0.52 Effective F number = 2.48 to 2.52 D0 = 6.00 R1 = -8.838 D1 = 1.20 N1 = 1.49171 ν1 = 57.4 R2 = -2.612 D2 = 5.00 ~ 10.20 * R3 = 2.023 D3 = 1.20 N2 = 1.49171 ν2 = 57.4 R4 = -14.674 * Aspherical surface coefficient (R3 surface) B = -1.51849 × 10 ^-2 Numerical example 4 Lateral magnification β = -0.47 to -0.46 Effective F number = 2.41 to 2.40 D0 = 7.00 R1 = -8.700 D1 = 1.00 N1 = 1.49171 ν1 = 57.4 R2 = -2.865 D2 = 7.00 to 11.20 * R3 = 2.218 D3 = 1.00 N2 = 1.49171 ν2 = 57.4 R4 = -9.67 4 * Aspherical surface coefficient (R3 surface) B = -1.30149 × 10 ^-2

【００４１】[0041]

【表１】 [Table 1]

【００４２】[0042]

【発明の効果】本発明によれば前述の如く各要素を適切
に設定することにより、例えばフルサイズの通常撮影
（第１撮影状態）と横長サイズのパノラマ撮影（第２撮
影状態）等のフィルムへの切換露光動作に伴ない、該フ
ィルムの互いに異なる領域に日付等のデータを撮影状態
に応じて切換えて写し込む際、機械的要素の簡素化を図
りつつ、所定の倍率で高精度に写し込むことができるデ
ータ写し込み装置を有したカメラを達成することができ
る。According to the present invention, by appropriately setting each element as described above, a film for full-size normal shooting (first shooting state) and landscape-oriented panoramic shooting (second shooting state), for example When the data such as the date is switched and imprinted on different areas of the film according to the photographing condition in accordance with the exposure operation, the mechanical elements are simplified and highly accurately copied at a predetermined magnification. A camera with a data imprinting device that can be embedded can be achieved.

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

【図１】 本発明の実施例１の光学系の要部概略図FIG. 1 is a schematic view of a main part of an optical system according to a first embodiment of the present invention.

【図２】 本発明の実施例２の光学系の要部概略図FIG. 2 is a schematic view of a main part of an optical system according to a second embodiment of the present invention.

【図３】 本発明の数値実施例１の第１撮影状態時のレ
ンズ断面図FIG. 3 is a lens cross-sectional view in Numerical Example 1 of the present invention in a first photographing state.

【図４】 本発明の数値実施例２の第１撮影状態時のレ
ンズ断面図FIG. 4 is a lens cross-sectional view in Numerical Example 2 of the present invention in a first photographing state.

【図５】 本発明の数値実施例３の第１撮影状態時のレ
ンズ断面図FIG. 5 is a lens cross-sectional view in Numerical Example 3 of the present invention in a first photographing state.

【図６】 本発明の数値実施例４の第１撮影状態時のレ
ンズ断面図FIG. 6 is a lens cross-sectional view in Numerical Embodiment 4 of the present invention in a first photographing state.

【図７】 本発明の数値実施例１の第１撮影状態時の諸
収差図FIG. 7 is a diagram of various types of aberration in Numerical Example 1 of the present invention in the first imaging state.

【図８】 本発明の数値実施例１の第２撮影状態時の諸
収差図FIG. 8 is a diagram of various types of aberration in Numerical Example 1 of the present invention in the second imaging state.

【図９】 本発明の数値実施例２の第１撮影状態時の諸
収差図FIG. 9 is a diagram of various types of aberration in Numerical Example 2 of the present invention in the first imaging state.

【図１０】 本発明の数値実施例２の第２撮影状態時の
諸収差図FIG. 10 is a diagram of various types of aberration in Numerical Example 2 of the present invention in the second imaging state.

【図１１】 本発明の数値実施例３の第１撮影状態時の
諸収差図FIG. 11 is a diagram of various types of aberration in Numerical Example 3 of the present invention in the first imaging state.

【図１２】 本発明の数値実施例３の第２撮影状態時の
諸収差図FIG. 12 is a diagram of various types of aberration in the second imaging state of Numerical Example 3 of the present invention.

【図１３】 本発明の数値実施例４の第１撮影状態時の
諸収差図FIG. 13 is a diagram of various types of aberration in Numerical Example 4 of the present invention in the first imaging state.

【図１４】 本発明の数値実施例４の第２撮影状態時の
諸収差図FIG. 14 is a diagram of various types of aberration in Numerical Example 4 of the present invention in the second imaging state.

【符号の説明】[Explanation of symbols]

１ データ表示部 ２ 第１レンズ ３，１３ 第２レンズ ４ 感光面 ５ 第１領域 ６ 第２領域 １１，７ 光路変更手段 Ｉ₀ 最大物高 ＦNo 有効Ｆナンバー Ｓ サジタル像面 Ｍ メリディオナル像面1 Data Display 2 First Lens 3,13 Second Lens 4 Photosensitive Surface 5 First Area 6 Second Area 11,7 Optical Path Change Means I ₀ Maximum Height F No Effective F Number S Sagittal Image Surface M Meridional Image Surface

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 撮影画面の異なる第１撮影状態と第２撮
影状態とを選択的に切り換えて感光面に被写体像を露光
する切換手段と、該感光面の異なる第１領域と第２領域
に選択的にデータ表示部に表示したデータを写し込むデ
ータ写し込み系とを有し、 該データ写し込み系は該データ表示部側から順に第１レ
ンズと光路変更手段そして第２レンズとを有し、該第１
レンズと該第２レンズの２つのレンズの空気間隔を該切
換手段に連動して変化させると共に該光路変更手段と該
第２レンズとを移動させることにより、該感光面の異な
る第１領域と第２領域とに選択的にデータを写し込み、
該第１レンズと該第２レンズの焦点距離を各々ｆ１，ｆ
２としたとき ０．１＜ｆ２／ｆ１＜０．７ なる条件を満足することを特徴とするデータ写し込み装
置を有したカメラ。1. A switching means for exposing a subject image on a photosensitive surface by selectively switching between a first photographing state and a second photographing state having different photographing screens, and a first area and a second area having different photosensitive surfaces. A data imprinting system for imprinting the data selectively displayed on the data display part, the data imprinting system comprising a first lens, an optical path changing means, and a second lens in order from the data display part side. , The first
By changing the air gap between the two lenses, the lens and the second lens, in conjunction with the switching means, and moving the optical path changing means and the second lens, the first area and the first area on the different photosensitive surface can be changed. Data is selectively imprinted on two areas,
The focal lengths of the first lens and the second lens are f1 and f, respectively.
A camera having a data imprinting device, characterized in that the condition of 0.1 <f2 / f1 <0.7 when 2 is satisfied. 【請求項２】 前記第２レンズと前記光路変更手段は一
体的に構成されていることを特徴とする請求項１のデー
タ写し込み装置を有したカメラ。2. The camera having a data imprinting device according to claim 1, wherein the second lens and the optical path changing means are integrally formed. 【請求項３】 前記第１レンズと前記第２レンズは共に
正の屈折力を有し、前記データ表示部と該第１レンズに
おけるデータ表示部側の主点との間隔をＳ１としたとき ０．４＜Ｓ１／ｆ１＜１．１ なる条件を満足することを特徴とする請求項１のデータ
写し込み装置を有したカメラ。3. The first lens and the second lens both have positive refracting power, and the distance between the data display section and the principal point of the first lens on the data display section side is S1. 4. The camera having the data imprinting device according to claim 1, wherein the condition of 4 <S1 / f1 <1.1 is satisfied. 【請求項４】 前記第１レンズと前記第２レンズは共に
１枚のレンズより成り、該第１レンズのデータ表示部側
のレンズ面の曲率半径をＲ１、該第１レンズの感光面側
のレンズ面の曲率半径をＲ２としたとき １＜（Ｒ１＋Ｒ２）／（Ｒ１−Ｒ２）＜９ なる条件を満足することを特徴とする請求項１のデータ
写し込み装置を有したカメラ。4. The first lens and the second lens both consist of one lens, and the radius of curvature of the lens surface of the first lens on the data display side is R1, and the radius of curvature of the first lens on the photosensitive surface side is R1. The camera having the data imprinting device according to claim 1, wherein the condition 1 <(R1 + R2) / (R1-R2) <9 is satisfied, where R2 is the radius of curvature of the lens surface. 【請求項５】 前記第１レンズと前記第２レンズは共に
プラスチック材料より成り、該第１レンズと該第２レン
ズの各レンズ面のうち少なくとも１つのレンズ面には非
球面が施されていることを特徴とする請求項１のデータ
写し込み装置を有したカメラ。5. The first lens and the second lens are both made of a plastic material, and at least one of the lens surfaces of the first lens and the second lens has an aspherical surface. A camera having the data imprinting device according to claim 1.