JPS6331337U - - Google Patents
Info
- Publication number
- JPS6331337U JPS6331337U JP1986124954U JP12495486U JPS6331337U JP S6331337 U JPS6331337 U JP S6331337U JP 1986124954 U JP1986124954 U JP 1986124954U JP 12495486 U JP12495486 U JP 12495486U JP S6331337 U JPS6331337 U JP S6331337U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- close
- attached
- photoelectric conversion
- fixed
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000005375 photometry Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 2
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Exposure Control For Cameras (AREA)
Description
第１図ａ〜第１図ｃは本考案の基礎となる固定
焦点式単体露出計の結像関係を示す図、第２図ａ
〜第２図ｃは本考案に係るクローズアツプレンズ
を装着した固定焦点式単体露出計の結像関係を示
す図、第３図は固定焦点式単体露出計にクローズ
アツプレンズを脱着する例を示す断面図、第４図
は制御手段のブロツク図、第５図ａ及び第５図ｂ
は表示素子のセグメントを点灯した状態の図、第
６図は表示手段のブロツク図、第７図はフローチ
ヤート、第８図は固定焦点式単体露出計のレンズ
移動機構の例を示す断面図である。
Ｍ…固定焦点式単体露出計、Ｌ１…対物レンズ
、Ｌ２…クローズアツプレンズ、Ｐ１…光電変換
素子（測光手段）、ＣＰＵ…マイクロコンピユー
タ（制御手段）。
Figures 1a to 1c are diagrams showing the imaging relationship of a fixed-focus single exposure meter, which is the basis of the present invention, and Figure 2a
~Figure 2c is a diagram showing the imaging relationship of a fixed-focus single exposure meter equipped with a close-up lens according to the present invention, and Figure 3 shows an example of attaching and detaching a close-up lens to a fixed-focus single exposure meter. A sectional view, FIG. 4 is a block diagram of the control means, FIGS. 5a and 5b
6 is a block diagram of the display means, FIG. 7 is a flowchart, and FIG. 8 is a sectional view showing an example of a lens moving mechanism of a fixed focus single exposure meter. be. M...Fixed-focus single exposure meter, L1...Objective lens, L2...Close-up lens, P1...Photoelectric conversion element (photometering means), CPU...Microcomputer (controlling means).
Claims (1)
のうちの小部分の像を該光電変換素子上に結像さ
せる固定の対物レンズと、この固定の対物レンズ
前方に装着されるクローズアツプレンズと、光電
変換手段の出力を演算処理する制御手段とを有し
、クローズアツプレンズ装着時の測光可能距離範
囲が至近距離を含む近距離範囲となるとともに、
クローズアツプレンズを取りはずした時又はクロ
ーズアツプレンズを所定量だけ光軸方向に移動さ
せた時の測光可能距離範囲が無限遠から通常近距
離までとなるよう、上記固定対物レンズ及びクロ
ーズアツプレンズを配置したことを特徴とする固
定焦点式単体露出計。 (2) 上記制御手段が、クローズアツプレンズが
装着されたことを検知するための検知手段と、該
検知手段によつて上記クローズアツプレンズが装
着されたことを検知した時、上記測光手段によつ
て得られる測光値に一定のバイアス値を加える計
算手段と、該計算手段によつて計算された測光値
を表示する表示手段で構成されていることを特徴
とする実用新案登録請求の範囲第(1)項記載の固
定焦点式単体露出計。[Claims for Utility Model Registration] (1) A photoelectric conversion element as a photometric means, a fixed objective lens that forms an image of a small portion of the field on the photoelectric conversion element, and this fixed objective. It has a close-up lens attached to the front of the lens and a control means for calculating the output of the photoelectric conversion means, and when the close-up lens is attached, the photometric distance range is a short distance range including a close distance,
The fixed objective lens and the close-up lens are arranged so that when the close-up lens is removed or the close-up lens is moved by a predetermined amount in the optical axis direction, the photometric distance range is from infinity to a normal short distance. A fixed focus single exposure meter. (2) The control means includes a detection means for detecting that the close-up lens is attached, and when the detection means detects that the close-up lens is attached, the photometry means detects that the close-up lens is attached. Utility model registration claim No. Fixed focus single exposure meter described in 1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986124954U JPS6331337U (en) | 1986-08-13 | 1986-08-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986124954U JPS6331337U (en) | 1986-08-13 | 1986-08-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6331337U true JPS6331337U (en) | 1988-02-29 |
Family
ID=31017428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986124954U Pending JPS6331337U (en) | 1986-08-13 | 1986-08-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6331337U (en) |
-
1986
- 1986-08-13 JP JP1986124954U patent/JPS6331337U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6333150U (en) | ||
| JPS5852517U (en) | Camera focus detection device | |
| JPS6331337U (en) | ||
| JPS622015U (en) | ||
| JPS60161327U (en) | camera photometry device | |
| JP2000162666A5 (en) | ||
| JPH0295324U (en) | ||
| JPH02119223U (en) | ||
| JP3036364U (en) | Camera mounted standard reflector | |
| JPS6235333U (en) | ||
| JPS54107337A (en) | Focusing device of single-lens reflex camera | |
| JPH08128892A (en) | Integral exposure meter for incident and reflection light | |
| JPH0390235U (en) | ||
| JPS587120U (en) | Camera EE metering device | |
| JPS63188644U (en) | ||
| JPS6419924U (en) | ||
| JPS62176836U (en) | ||
| JPH0245537U (en) | ||
| JPH0375420U (en) | ||
| JPS62164317U (en) | ||
| JPS63120217U (en) | ||
| JPS5893917U (en) | camera | |
| JPS6233037U (en) | ||
| JPH0217731U (en) | ||
| JPS5834123U (en) | single lens reflex camera |