JPS6419924U - - Google Patents
Info
- Publication number
- JPS6419924U JPS6419924U JP1987113117U JP11311787U JPS6419924U JP S6419924 U JPS6419924 U JP S6419924U JP 1987113117 U JP1987113117 U JP 1987113117U JP 11311787 U JP11311787 U JP 11311787U JP S6419924 U JPS6419924 U JP S6419924U
- Authority
- JP
- Japan
- Prior art keywords
- value
- macro
- emission level
- subject
- brightness
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Focusing (AREA)
- Exposure Control For Cameras (AREA)
Description
第１図は、この考案に係る絞り制御装置のクレ
ーム対応図であり、第２図はハードウエアを示す
ブロツク図である。第３図はフローチヤートであ
る。第４図はプログラム線図である。
１…演算処理部、１ａ…ＥＶ値演算手段、１ｂ
…露出制御手段、１ｃ…マクロ撮影検知手段、２
…受光素子（測光手段）、３…測距手段、３ａ…
投光素子、３ｂ…受光素子、４…ＡＦ手段、５…
シヤツター駆動ソレノイド（シヤツター駆動手段
）、７ａ，７ｂ…シヤツター羽根、８…ストロボ
。
FIG. 1 is a diagram corresponding to claims of the aperture control device according to this invention, and FIG. 2 is a block diagram showing the hardware. Figure 3 is a flowchart. FIG. 4 is a program diagram. 1... Arithmetic processing unit, 1a... EV value calculation means, 1b
...Exposure control means, 1c...Macro photography detection means, 2
... Light receiving element (photometering means), 3... Distance measuring means, 3a...
Light projecting element, 3b... Light receiving element, 4... AF means, 5...
Shutter drive solenoid (shutter drive means), 7a, 7b...shutter blades, 8...strobe.
Claims (1)
に基づいてＥＶ値を演算するＥＶ値演算手段と、
被写体距離を測定する測距手段と、被写体距離に
応答して撮影レンズを合焦させるオートフオーカ
ス手段と、ＥＶ値が低輝度発光レベルＥ０以下で
ある場合に自動発光するストロボと、ＥＶ値を前
記低輝度発光レベルＥ０と比較し、ストロボ撮影
時にはフラツシユマチツクで、ＡＥ撮影時にはＥ
Ｖ値に対応して予め定められた絞りとシヤツター
速度によるプログラムシヤツターで、それぞれ露
出を制御する露出制御手段を有する小型カメラに
おいて、 被写体距離がマクロ撮影領域内であることを検
知するマクロ撮影検知手段を設け、このマクロ撮
影検知手段から送出されたマクロ撮影信号に応答
して、前記ストロボの低輝度発光レベルＥ０を、
当該ＥＶ値よりも適宜に大きいＥＶ値であるマク
ロ発光レベルＥ１に修正すると共に、被写体輝度
に基づくＥＶ値とこのマクロ発光レベルＥ１とを
前記露出制御手段で比較することを特徴とする小
型カメラの絞り制御装置。[Scope of Claim for Utility Model Registration] A photometric means for measuring subject brightness, an EV value calculation means for calculating an EV value based on the subject brightness,
A distance measuring device that measures the distance to the subject, an autofocus device that focuses the photographic lens in response to the subject distance, a strobe that automatically fires when the EV value is below the low-luminance emission level E0 , and the EV value. is compared with the low-brightness light emission level E0 .
Macro shooting detection detects that the subject distance is within the macro shooting area in a small camera that has an exposure control means that controls the exposure using a program shutter with a predetermined aperture and shutter speed corresponding to the V value. means is provided, and in response to the macro photography signal sent from the macro photography detection means, the low brightness light emission level E0 of the strobe is determined.
The compact camera is characterized in that the exposure control means corrects the macro emission level E1 to a macro emission level E1 which is an EV value appropriately larger than the EV value, and compares the EV value based on the subject brightness with the macro emission level E1. Camera aperture control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987113117U JPH0720664Y2 (en) | 1987-07-23 | 1987-07-23 | Aperture controller for small cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987113117U JPH0720664Y2 (en) | 1987-07-23 | 1987-07-23 | Aperture controller for small cameras |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6419924U true JPS6419924U (en) | 1989-01-31 |
| JPH0720664Y2 JPH0720664Y2 (en) | 1995-05-15 |
Family
ID=31352673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987113117U Expired - Lifetime JPH0720664Y2 (en) | 1987-07-23 | 1987-07-23 | Aperture controller for small cameras |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720664Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51135537U (en) * | 1975-04-23 | 1976-11-01 | ||
| JPS6188122U (en) * | 1985-03-28 | 1986-06-09 |
-
1987
- 1987-07-23 JP JP1987113117U patent/JPH0720664Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51135537U (en) * | 1975-04-23 | 1976-11-01 | ||
| JPS6188122U (en) * | 1985-03-28 | 1986-06-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0720664Y2 (en) | 1995-05-15 |
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