JPH0351428U - - Google Patents
Info
- Publication number
- JPH0351428U JPH0351428U JP11095289U JP11095289U JPH0351428U JP H0351428 U JPH0351428 U JP H0351428U JP 11095289 U JP11095289 U JP 11095289U JP 11095289 U JP11095289 U JP 11095289U JP H0351428 U JPH0351428 U JP H0351428U
- Authority
- JP
- Japan
- Prior art keywords
- distance
- distance measurement
- measurement information
- infinity
- photographing 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
Links
- 238000005259 measurement Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000013256 coordination polymer Substances 0.000 description 1
Landscapes
- Focusing (AREA)
Description
第１図は、本考案の一実施例に係る自動合焦装
置の全体の構成を示すブロツク図、第２図は、第
１図に示す実施例の測距装置の構成を分解して示
す分解斜視図、第３図は、第１図に示す実施例の
ＰＳＤの出力対距離の関係を示す特性図、第４図
は、第１図に示す実施例のＡ／Ｄコンバータのア
ナログ入力に対するデイジタル出力の関係を示す
説明図、第５図は、第１図に示す実施例における
無限遠スイツチの投入時の撮影レンズの繰り出し
量のテーブルを示す説明図、第６図は、第１図に
示す実施例における無限遠スイツチの非投入時の
撮影レズの繰り出し量のテーブルを示す説明図で
ある。
１……ＬＥＤ、２……投光レンズ、３……測距
対象、４……ＡＦＩＣ、５……受光レンズ、６…
…ＰＳＤ、７……Ａ／Ｄコンバータ、８……ＣＰ
Ｕ、９……メインスイツチ、１１……無限遠スイ
ツチ、１２，１３……第１、第２のレリーズスイ
ツチ、１４……モータドライバ、１５……レンズ
繰り出しモータ、１７……撮影レンズ。
FIG. 1 is a block diagram showing the overall configuration of an automatic focusing device according to an embodiment of the present invention, and FIG. 2 is an exploded view showing the exploded configuration of the distance measuring device according to the embodiment shown in FIG. A perspective view, FIG. 3 is a characteristic diagram showing the relationship between the output of the PSD of the embodiment shown in FIG. 1 and distance, and FIG. FIG. 5 is an explanatory diagram showing the relationship between outputs. FIG. 5 is an explanatory diagram showing a table of the amount of extension of the photographing lens when the infinity switch is turned on in the embodiment shown in FIG. 1. FIG. FIG. 6 is an explanatory diagram showing a table of the amount of movement of the photographing lens when the infinity switch is not turned on in the embodiment. 1...LED, 2...Light emitting lens, 3...Distance measurement target, 4...AFIC, 5...Light receiving lens, 6...
...PSD, 7...A/D converter, 8...CP
U, 9... Main switch, 11... Infinity switch, 12, 13... First and second release switches, 14... Motor driver, 15... Lens feeding motor, 17... Photographing lens.
Claims (1)
距情報に基づき撮影レンズを合焦位置に移動可能
な自動合焦装置において、前記撮影レンズによる
合焦可能な最遠位置を、無限遠位置と、この無限
遠位置より若干近い所定距離位置のいずれかに選
択可能な選択手段と、この選択手段が無限遠側に
選択設定されていることを判定すると、前記測距
手段から得られた測距情報をもとに前記無限遠位
置までの測距情報を出力し、前記選択手段が前記
所定距離側に選択設定されていることを判別する
と、前記測距情報をもとに前記無限遠位置と前記
所定距離位置との間の領域を含まない測距情報を
出力する測距情報変更手段と、この測距情報変更
手段から出力される測距情報を受けて前記撮影レ
ンズを合焦駆動する駆動手段とを具備することを
特徴とする自動合焦装置。 In an automatic focusing device having a distance measuring means and capable of moving a photographing lens to a focusing position based on distance measuring information obtained from the distance measuring means, the farthest position that can be focused by the photographing lens is set to infinity. a selection means that can select either a far position or a predetermined distance position slightly closer than the infinity position; and when it is determined that this selection means is set to the infinity side, the distance measurement means can select the distance that is obtained from the distance measurement means; When it is determined that the selection means is selected and set to the predetermined distance side, the distance measurement information up to the infinity position is output based on the distance measurement information. distance measurement information changing means for outputting distance measurement information that does not include an area between the far position and the predetermined distance position; and focusing the photographing lens upon receiving the distance measurement information output from the distance measurement information change means. An automatic focusing device comprising a driving means for driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11095289U JPH0351428U (en) | 1989-09-23 | 1989-09-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11095289U JPH0351428U (en) | 1989-09-23 | 1989-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0351428U true JPH0351428U (en) | 1991-05-20 |
Family
ID=31659455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11095289U Pending JPH0351428U (en) | 1989-09-23 | 1989-09-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351428U (en) |
-
1989
- 1989-09-23 JP JP11095289U patent/JPH0351428U/ja active Pending