JPH0351424U

JPH0351424U -

Info

Publication number: JPH0351424U
Application number: JP11164089U
Authority: JP
Priority date: 1989-09-26
Filing date: 1989-09-26
Publication date: 1991-05-20

Description

[Brief explanation of drawings]

第１図〜第１１図は、いずれも本考案に係る図
であり、このうち、第１図は、本考案の一実施例
を示すあおり機能付カメラの原理説明用の概略斜
視図、第２図は、第１図中に示される一次元位置
検出部の測距動作を説明するための線図、第３図
は、第１図中に示される一次元位置検出部を模式
的に示す正面図、第４図は、撮影画面と測距領域
の関係の一例を示す正面図、第５図は、あおり角
度決定の原理を示す線図、第６図は、あおり駆動
機能の一例を示す斜視図、第７図は、本実施例の
全体構成を示す回路ブロツク図、第８図は、ズー
ム動作に伴うピントずれを補正する原理を示す線
図、第９図は、データＲＯＭ２４内の補正値デー
タをグラフの形で示す説明図、第１０図および第
１１図は、第７図の動作順序を示すフローチヤー
トで、このうち第１０図は、初期設定動作を、第
１１図は、補正動作をそれぞれ示している。１……投光レンズ、２……発光部、２_１〜２ｎ
……赤外発光素子、３……受光レンズ、４……一
次元位置検出部、４_１〜４ｎ……検出素子（一次
元半導体位置検出部）、５……撮影画枠、６……
被写体、８……フイルム面、９……レンズボード
、１０……保持枠、１１……回転支軸、１２……
被駆動部、１３……駆動長孔、１４……移動部材
、１５……駆動ピン、１６……連結部材、１７…
…接点ブラシ、１９……モータ、２０……接点基
板、２１……共通パターン、２２……接点パター
ン、２３……測距部、２４……データＲＯＭ、２
５……レリーズスイツチ、２６……ズームスイツ
チ、２７……初期スイツチ、２８……あおり検出
部、２９……ズーム検出部、３０……ズームモー
タ、３１……フオーカスモータ、３３……総合制
御部（ＣＰＵ）、３４……測距制御部、３５……
合焦演算部、３６……合焦判定部、３７……フオ
ーカス制御部、３８……ズーム制御部、３９……
切換スイツチ、４０……ＲＡＭ１、４１……移動
量演算部、４２……ＲＡＭ３、４３……ＲＡＭ２
、４４……あおり量比較判定部、４７……あおり
駆動制御部。 Figures 1 to 11 are all diagrams related to the present invention, of which Figure 1 is a schematic perspective view for explaining the principle of a camera with a tilting function showing an embodiment of the present invention, and Figure 2 is a schematic perspective view for explaining the principle of a camera with a tilting function. The figure is a diagram for explaining the ranging operation of the one-dimensional position detecting section shown in FIG. 1, and FIG. 3 is a front view schematically showing the one-dimensional position detecting section shown in FIG. 4 is a front view showing an example of the relationship between the shooting screen and the distance measurement area, FIG. 5 is a line diagram showing the principle of determining the tilt angle, and FIG. 6 is a perspective view showing an example of the tilt drive function. 7 is a circuit block diagram showing the overall configuration of this embodiment, FIG. 8 is a diagram showing the principle of correcting the focus shift accompanying zoom operation, and FIG. 9 is a diagram showing the correction values in the data ROM 24. Figures 10 and 11, which are explanatory diagrams showing data in the form of graphs, are flowcharts showing the sequence of operations in Figure 7, of which Figure 10 shows the initial setting operation, and Figure 11 shows the correction operation. are shown respectively. 1... Light projecting lens, 2... Light emitting section, 2 ₁ to 2n
...Infrared light emitting element, 3... Light receiving lens, 4... One-dimensional position detection section, 4 ₁ to 4n... Detection element (one-dimensional semiconductor position detection section), 5... Shooting image frame, 6...
Subject, 8...Film surface, 9...Lens board, 10...Holding frame, 11...Rotation shaft, 12...
Driven part, 13... Drive elongated hole, 14... Moving member, 15... Drive pin, 16... Connection member, 17...
...Contact brush, 19...Motor, 20...Contact board, 21...Common pattern, 22...Contact pattern, 23...Distance measuring section, 24...Data ROM, 2
5...Release switch, 26...Zoom switch, 27...Initial switch, 28...Tilt detection section, 29...Zoom detection section, 30...Zoom motor, 31...Focus motor, 33...General control unit (CPU), 34... Distance measurement control unit, 35...
Focus calculation unit, 36...Focus determination unit, 37...Focus control unit, 38...Zoom control unit, 39...
Changeover switch, 40...RAM1, 41...Movement amount calculation unit, 42...RAM3, 43...RAM2
, 44... Tilt amount comparison/judgment unit, 47... Tilt drive control unit.

Claims

[Scope of Claim for Utility Model Registration] (1) In a camera that uses a zoom lens with distance measuring means and tilting function as a photographing lens, a plurality of infrared rays are used to irradiate infrared rays at predetermined intervals along a specific direction of the subject. A light emitting means formed by arranging external light emitting elements in a row, and a light emitting means for receiving each reflected light emitted by each infrared light emitting element of the light emitting means and reflected by the subject. a plurality of one-dimensional semiconductor position detection elements arranged in parallel along a direction perpendicular to the arrangement direction of the plurality of infrared light emitting elements and separated by a predetermined baseline length from the reference axis; one-dimensional position detection means that generates an output from each of the plurality of one-dimensional semiconductor position detection elements according to a light receiving position along the base line length when each of the infrared light emitting elements of the plurality of one-dimensional semiconductor position detection elements emit light; The above-mentioned distance measuring means calculates the distances of a plurality of subjects based on the outputs generated in each of the original semiconductor position detection elements, and the film surface of the axis passing through the plurality of distance measuring points of the above-mentioned subjects based on the outputs of this distance measuring means. and a tilting angle calculating means for calculating the angle between the film surface and an axis orthogonal to the optical axis of the photographing lens based on the tilting angle, and a tilting angle calculating means for calculating the tilting angle determined by the tilting angle calculating means. a driving means for driving and controlling the photographing lens; and a state in which the driving means tilts and drives the photographing lens based on the tilting angle, and all of the plurality of subjects are in focus on the film surface as an initial state; an externally operable initial state instructing means for instructing the timing of this initial state; an initial value storage means for receiving the output of the initial state instructing means and storing the tilt angle and the focal length of the zoom lens at the above timing; A focal length detecting means for detecting a change in the focal length when the focal length is updated after the timing, and a tilting means for receiving the output of the focal length detecting means and calculating a tilting correction amount to correct the focus shift due to the updating. A camera with a tilt function, comprising: a correction amount calculation means; and a correction means for controlling the driving means to correct the focus shift after the update based on the tilt correction amount. . (2) The tilt function according to claim 1, wherein the tilt correction amount calculation means is constituted by a fixed storage means such as a ROM that outputs a pre-stored tilt correction amount in response to the focus shift. Comes with a camera. (3) The correction means updates the focal length of the zoom lens after the initial state instructing means instructs the initial state, or the photographing operation is performed at least once;
The distance is measured again, and the tilt angle obtained by this re-distance measurement is compared with the tilt correction amount before the re-distance measurement, and if the difference is larger than a predetermined value, the driving means is caused to perform tilt drive. , if not, it is equipped with a means for comparing and determining the amount of tilting that does not cause the tilting drive,
2. The camera with a tilt function according to claim 1, wherein the camera is configured such that tilt drive can be selectively performed.