JPH0453373U - - Google Patents
Info
- Publication number
- JPH0453373U JPH0453373U JP1990095697U JP9569790U JPH0453373U JP H0453373 U JPH0453373 U JP H0453373U JP 1990095697 U JP1990095697 U JP 1990095697U JP 9569790 U JP9569790 U JP 9569790U JP H0453373 U JPH0453373 U JP H0453373U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- infrared
- imaging device
- lens
- infrared detector
- 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
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000003331 infrared imaging Methods 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
Description
第１図は、この考案の赤外線撮像装置の一実施
例の関連部分を示す構成図、第２図は、その光学
系の内部構成図、第３図は、従来の赤外線撮像装
置の関連部分を示す図である。
図において、１は光学系、２はシヤツタ、３は
赤外線検知器、４はデユワ、５はクーラ、６はア
ンプ、７はＳ／Ｈ回路、８はＡ／Ｄ変換器、９は
フレームメモリ、１０減算回路、１１はＤ／Ａ変
換器、２０は２焦点光学系、２０ａは対物レンズ
群、２０ｂは焦点距離切替えレンズ群、２０ｃは
結像レンズ群である。なお、図中同一符号は同一
又は相当部分を示す。
Fig. 1 is a block diagram showing the related parts of an embodiment of the infrared imaging device of this invention, Fig. 2 is an internal block diagram of the optical system, and Fig. 3 shows the related parts of the conventional infrared imaging device. FIG. In the figure, 1 is an optical system, 2 is a shutter, 3 is an infrared detector, 4 is a dewar, 5 is a cooler, 6 is an amplifier, 7 is an S/H circuit, 8 is an A/D converter, 9 is a frame memory, 10 is a subtraction circuit, 11 is a D/A converter, 20 is a bifocal optical system, 20a is an objective lens group, 20b is a focal length switching lens group, and 20c is an imaging lens group. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
の像を光電変換し、さらに直列電気信号として読
み出す２次元配列の赤外線検知器と、こ赤外線検
知器の各画素の感度ばらつきを補正する補正回路
とで基本的に構成される赤外線撮像装置において
、上記光学系を、２種類の焦点距離に切替えらる
２焦点光学系で構成するとともに、上記光学系の
焦点切替えレンズを途中の位置にしたとき、画像
が大きくぼけるようにレンズを構成し、光学系の
焦点切替えレンズの調整により、画像を大きくぼ
かした状態にして、撮像する情景からの赤外光を
取り入れたまま、上記補正回路に赤外線検知器の
感度ばらつきデータを取り入れることを特徴とす
る赤外線撮像装置。 An optical system, a two-dimensional array of infrared detectors that photoelectrically converts the infrared light image formed by the optical system, and then reads it out as a serial electrical signal, and corrects sensitivity variations in each pixel of this infrared detector. In an infrared imaging device that basically consists of a correction circuit, the optical system is configured with a bifocal optical system that can be switched between two different focal lengths, and the focus switching lens of the optical system is set at an intermediate position. The lens is configured so that the image is greatly blurred when An infrared imaging device characterized by incorporating sensitivity variation data of an infrared detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990095697U JPH0453373U (en) | 1990-09-12 | 1990-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990095697U JPH0453373U (en) | 1990-09-12 | 1990-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0453373U true JPH0453373U (en) | 1992-05-07 |
Family
ID=31834635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990095697U Pending JPH0453373U (en) | 1990-09-12 | 1990-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453373U (en) |
-
1990
- 1990-09-12 JP JP1990095697U patent/JPH0453373U/ja active Pending
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