JPS59104869A - Image pickup system with near infrared ray - Google Patents
Image pickup system with near infrared rayInfo
- Publication number
- JPS59104869A JPS59104869A JP57214967A JP21496782A JPS59104869A JP S59104869 A JPS59104869 A JP S59104869A JP 57214967 A JP57214967 A JP 57214967A JP 21496782 A JP21496782 A JP 21496782A JP S59104869 A JPS59104869 A JP S59104869A
- Authority
- JP
- Japan
- Prior art keywords
- infrared ray
- near infrared
- intruder
- image pickup
- light source
- 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
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19617—Surveillance camera constructional details
- G08B13/19632—Camera support structures, e.g. attachment means, poles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
Abstract
Description
【発明の詳細な説明】
本発明は近赤外光を放射する光臨を備えた近赤外光撮像
システムに関ｆる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a near-infrared light imaging system with a light beam that emits near-infrared light.
例えば、銀行等で夜間における不法侵入者の防犯、監視
用に使用される撮像システムとして、従来より第１図に
示すように、ある−室（１）の壁（２）に据付けられ可
視光の発光スペクトルをもつランプ（３）および可視光
に対し感度をもつビデオカメラ（４）を備えたものが採
用され、扉（５）から侵入した侵入者（６）の動作が撮
像できるように構成されている。For example, as shown in Figure 1, as an imaging system used for crime prevention and monitoring of illegal intruders at night in banks, etc., it is conventionally installed on the wall (2) of a certain room (1) and emits visible light. A device equipped with a lamp (3) having a luminous spectrum and a video camera (4) sensitive to visible light is used, and is configured to be able to image the movements of an intruder (6) who enters through the door (5). ing.
しかるに、このように構成された撮像システムではラン
プ（３）の照明によシビデオカメラ（４）の据付は場所
が被写体である侵入者（６）に分って破壊されると、防
犯、監視用の撮像システムとしてその機能を発揮させる
ことができないという不都合がある。However, in an imaging system configured in this manner, the video camera (4) is installed using the illumination of the lamp (3), and if the location of the video camera (4) is discovered and destroyed by an intruder (6), which is the subject of the photograph, security and surveillance operations are required. There is a disadvantage in that it is not possible to demonstrate its functions as an imaging system for use in other applications.
そこで、赤外撮像装置による撮像システムが考えられる
が、これは可視光源を用いて行う撮像システムに比べて
十分な感度が得られないだけでなく、設備面での費用が
嵩みその実施が困難であるのが現状である。Therefore, an imaging system using an infrared imaging device may be considered, but this not only does not provide sufficient sensitivity compared to an imaging system using a visible light source, but also is difficult to implement due to high equipment costs. This is the current situation.
本発明はこのような事情に鑑みなされたもので、被写体
の背景となる構造物の表面を近赤外光の低反射率をもつ
材料で形成するというきわめて簡単な構成により、安価
に得ることができかつ暗闇の構造物内における不法侵入
者に撮像装置の存在を気付かれることなく撮像できる近
赤外光撮像システムを提供するものである。以下、その
構成等を図に示す実施例によって詳細に説明する。The present invention was created in view of these circumstances, and has an extremely simple structure in which the surface of the structure that is the background of the subject is formed of a material that has a low reflectance of near-infrared light, and can be obtained at low cost. To provide a near-infrared light imaging system capable of capturing an image in a dark structure without making an illegal intruder aware of the presence of the imaging device. Hereinafter, the configuration and the like will be explained in detail with reference to embodiments shown in the drawings.
第２図は本発明に係る近赤外光撮像システムの一実施例
を示しており、同図において、符号（１１）で示すもの
は扉（１２）を有する箱状の構造物で、近赤外固体撮像
カメラ群の被写体である侵入者（１■の背景となる表面
すなわち内壁面（１４） 、床面（１５）および前記扉
（１２）の内側面（１２ａ）が近赤外光に対し低反射率
をもつアルミニウム薄層を貼付したいわゆるラミネート
相あるいはアルミニウム、銅、亜鉛等の金屑微粒子を付
着させたいわゆるメタリコン膜で形成されている。（１
６）はアルゴンあるいはキセノンなどの希ガス放電によ
って生じた近、赤外光を放射する光源で、前記扉（１２
）と対向する内壁面（１４ａ ）上の上１＋１１に取付
けられている。Fig. 2 shows an embodiment of the near-infrared light imaging system according to the present invention. The background surfaces of the intruder (1), who is the object of the external solid-state imaging camera group, that is, the inner wall surface (14), the floor surface (15), and the inner surface (12a) of the door (12) are exposed to near-infrared light. It is formed of a so-called laminate phase with a thin aluminum layer with low reflectance attached, or a so-called metallicon film with fine gold particles of aluminum, copper, zinc, etc. attached.(1
6) is a light source that emits near-infrared light generated by discharge of a rare gas such as argon or xenon;
) is attached to the top 1+11 on the inner wall surface (14a) opposite to the inner wall surface (14a).
（１７〕は近赤外光が照射された物体の反射像を撮像す
る近赤外固体撮像装置で前記内壁面（１４ａ）上におけ
る光源（１６）の上方に位置する部位に取付けられてお
り、内部にはシリコンのｐ−ｎ接合またはショットキー
接合により形成した図示しない受光素子が備えられてい
る。そして、この近赤外固体撮像装Ｒ（１７）は受光素
子に生じた撮像信号が図示しないＭＯ８形トランジスタ
あるいは電荷転送デバイスにより外部に取出されるよう
に構成されている。(17) is a near-infrared solid-state imaging device that captures a reflected image of an object irradiated with near-infrared light, and is mounted on the inner wall surface (14a) at a location above the light source (16); A light receiving element (not shown) formed by a p-n junction or a Schottky junction of silicon is provided inside.This near-infrared solid-state imaging device R (17) is equipped with an imaging signal (not shown) generated in the light receiving element. It is configured to be taken out to the outside by an MO8 type transistor or a charge transfer device.
したがって、光源（１６）から放射する近赤外光が扉（
１２）から構造物（１１〕内に侵入した侵入者（１３）
を照射すると、その反射光が近赤外固体撮像装置（１７
）に受光される。そして、この近赤外固体撮像装置（１
７）内の受光素子を介し侵入者（１３）の反射光像が撮
像信号として外部に出力され、信号ケーブル（１８）で
近赤外固体撮像装ｇ（１ｔ）と結線されたブラウン管等
の表示装置を介し画像として観察者の視覚に送られる。Therefore, near-infrared light emitted from the light source (16) is emitted from the door (
Intruder (13) who entered the structure (11) from 12)
When irradiated with a near-infrared solid-state imaging device (17
) is received. This near-infrared solid-state imaging device (1
7) A reflected light image of the intruder (13) is outputted to the outside as an imaging signal through the light receiving element inside, and displayed on a cathode ray tube or the like connected to the near-infrared solid-state imaging device g (1t) via the signal cable (18). The image is sent to the observer's vision via a device.
なお、本発明による近赤外光撮像システムを化学プラン
トの熱管理面における監視用の撮像システムとして実施
することができるだけでなく、原子力関係のプラントを
扱った場所においても防犯および監視用の撮像システム
として同様に実施することができる。The near-infrared light imaging system according to the present invention can be implemented not only as an imaging system for monitoring heat management in chemical plants, but also as an imaging system for crime prevention and monitoring in places dealing with nuclear power-related plants. It can be implemented similarly as .
以上説明したように、本発明によれば被写体の背景とな
る構造物の表面を近赤外光の低反射率をもつ材料で形成
したので、良好な撮像コントラストを得るに十分な感度
をもった撮像システムを提供することができる。また、
近赤外光を放射する光源と近赤外固体撮像装置を用いて
いるから、きわめて経済的な撮像システムを得ることが
できるだけでなく、暗闇の構造物内における被写体に近
赤外固体撮像装置の存在を確認されることなく被写体を
確実に撮像することができ、防犯および監視用の撮像シ
ステムとして、その機能を十分に発揮させることができ
る。As explained above, according to the present invention, the surface of the structure that is the background of the subject is formed of a material that has a low reflectance of near-infrared light, so it has sufficient sensitivity to obtain good imaging contrast. An imaging system can be provided. Also,
By using a light source that emits near-infrared light and a near-infrared solid-state imaging device, not only can an extremely economical imaging system be obtained, but also the near-infrared solid-state imaging device can be used to capture objects inside dark structures. It is possible to reliably image a subject without having its presence confirmed, and it is possible to fully demonstrate its functions as an imaging system for crime prevention and surveillance.
第１図は従来の撮像システムを示す断面図、第２図は本
発明に係る近赤外光撮像システムの一実施例を示す断面
図である。
（１１）・・・・構造物、（１２）・・・・扉、（１２
ω・・・・扉の内側面、（１４）・・・・内壁面、（１
５）・・・・床面、（１６）・・・・光源、（１７）・
・・・近赤外固体撮像装置。
代理人 葛野信−
第１図
３′FIG. 1 is a sectional view showing a conventional imaging system, and FIG. 2 is a sectional view showing an embodiment of a near-infrared imaging system according to the present invention. (11)...Structure, (12)...Door, (12
ω...Inner surface of the door, (14)...Inner wall surface, (1
5)...Floor surface, (16)...Light source, (17)...
...Near-infrared solid-state imaging device. Agent Makoto Kuzuno - Figure 1 3'
Claims (1)
物体の反射像を撮影する近赤外固体撮像装置とを配置し
た撮像システムにおいて、近赤外固体撮像カメラ群の被
写体の背景となる構造物の表面を近赤外光の低反射率を
もつ材料で形成したことを特徴とする近赤外光撮像シス
テム。In an imaging system that includes a light source that emits near-infrared light and a near-infrared solid-state imaging device that captures a reflected image of an object irradiated with the near-infrared light, the near-infrared solid-state imaging camera group A near-infrared light imaging system characterized in that the surface of a background structure is made of a material that has a low reflectance of near-infrared light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57214967A JPS59104869A (en) | 1982-12-06 | 1982-12-06 | Image pickup system with near infrared ray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57214967A JPS59104869A (en) | 1982-12-06 | 1982-12-06 | Image pickup system with near infrared ray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59104869A true JPS59104869A (en) | 1984-06-16 |
Family
ID=16664523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57214967A Pending JPS59104869A (en) | 1982-12-06 | 1982-12-06 | Image pickup system with near infrared ray |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59104869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999004378A1 (en) * | 1997-07-19 | 1999-01-28 | Footfall Limited | Video imaging systems |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4841698A (en) * | 1971-09-28 | 1973-06-18 | ||
| JPS52129319A (en) * | 1976-04-23 | 1977-10-29 | Hitachi Ltd | Photographing method of welded area |
| JPS5547466A (en) * | 1978-07-18 | 1980-04-03 | Matsushita Electric Works Ltd | Light beam alarm device |
| JPS5940714A (en) * | 1982-08-31 | 1984-03-06 | Anritsu Corp | Power amplifier |
-
1982
- 1982-12-06 JP JP57214967A patent/JPS59104869A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4841698A (en) * | 1971-09-28 | 1973-06-18 | ||
| JPS52129319A (en) * | 1976-04-23 | 1977-10-29 | Hitachi Ltd | Photographing method of welded area |
| JPS5547466A (en) * | 1978-07-18 | 1980-04-03 | Matsushita Electric Works Ltd | Light beam alarm device |
| JPS5940714A (en) * | 1982-08-31 | 1984-03-06 | Anritsu Corp | Power amplifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999004378A1 (en) * | 1997-07-19 | 1999-01-28 | Footfall Limited | Video imaging systems |
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