JPH02103973U - - Google Patents
Info
- Publication number
- JPH02103973U JPH02103973U JP1989011506U JP1150689U JPH02103973U JP H02103973 U JPH02103973 U JP H02103973U JP 1989011506 U JP1989011506 U JP 1989011506U JP 1150689 U JP1150689 U JP 1150689U JP H02103973 U JPH02103973 U JP H02103973U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- optical image
- predetermined
- light amount
- optical
- 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
- 238000003384 imaging method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 6
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 2
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
Description
第１図は本考案の一実施例を示す撮像装置の概
略ブロツク図、第２図は本考案の一実施例の説明
するための信号波形図、第３図は液晶の印加電圧
と透過率との一般的な関係を示す図、第４図は従
来の撮像装置を説明するための信号波形図、第５
図は固体撮像素子の受光量と検出電圧との一般的
な関係を示す図である。
図において、１はレンズ系、１０はアイリス、
１１は集束レンズ、１２はＣＣＤ、１３はプリア
ンプ、１４はＣＣＤドライバ、２０は液晶素子（
ＬＣＤ）、２１は光量検出器、２２はＬＣＤドラ
イバ、４０は切替回路、５０はカメラ部、６０は
変換部である。なお、図中、同一符号は同一また
は相当部分を示す。
Fig. 1 is a schematic block diagram of an imaging device showing an embodiment of the present invention, Fig. 2 is a signal waveform diagram for explaining an embodiment of the invention, and Fig. 3 shows applied voltage and transmittance of the liquid crystal. FIG. 4 is a signal waveform diagram for explaining the conventional imaging device, and FIG.
The figure is a diagram showing a general relationship between the amount of light received by a solid-state image sensor and a detection voltage. In the figure, 1 is a lens system, 10 is an iris,
11 is a focusing lens, 12 is a CCD, 13 is a preamplifier, 14 is a CCD driver, and 20 is a liquid crystal element (
21 is a light amount detector, 22 is an LCD driver, 40 is a switching circuit, 50 is a camera section, and 60 is a conversion section. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
系と、 前記光学系により取出された光学画像を電気信
号に変換する変換手段と、 前記光学系により与えられた光学画像に対応す
る電気信号が所定レベルを越えたことを検出する
所定光量検出手段と、 前記変換手段の前面に設けられ、前記所定光量
検出手段の検出出力に応答して、前記光学系から
の光の透過率を予め定められた所定量だけ減少さ
せる光量変化手段とを備えた撮像装置。[Claims for Utility Model Registration] An optical system that extracts an object to be imaged as an optical image; a conversion means that converts the optical image extracted by the optical system into an electrical signal; and an optical image provided by the optical system. a predetermined light amount detection means for detecting that an electric signal corresponding to the above exceeds a predetermined level; An imaging device comprising a light amount changing means for reducing transmittance by a predetermined amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989011506U JPH02103973U (en) | 1989-02-01 | 1989-02-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989011506U JPH02103973U (en) | 1989-02-01 | 1989-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02103973U true JPH02103973U (en) | 1990-08-17 |
Family
ID=31220122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989011506U Pending JPH02103973U (en) | 1989-02-01 | 1989-02-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02103973U (en) |
-
1989
- 1989-02-01 JP JP1989011506U patent/JPH02103973U/ja active Pending
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