JPH0230738Y2 - - Google Patents
Info
- Publication number
- JPH0230738Y2 JPH0230738Y2 JP1983091046U JP9104683U JPH0230738Y2 JP H0230738 Y2 JPH0230738 Y2 JP H0230738Y2 JP 1983091046 U JP1983091046 U JP 1983091046U JP 9104683 U JP9104683 U JP 9104683U JP H0230738 Y2 JPH0230738 Y2 JP H0230738Y2
- Authority
- JP
- Japan
- Prior art keywords
- conical
- view
- field
- block body
- condensing system
- 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.)
- Expired
Links
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Burglar Alarm Systems (AREA)
Description
【考案の詳細な説明】
本考案は侵入警報器や人体検出器等の検出器の
視野を画するために用いる円錐集光系に関する。[Detailed Description of the Invention] The present invention relates to a conical condensing system used to define the field of view of a detector such as an intruder alarm or a human body detector.
この種の円錐集光系は第１図に示すように集光
面１が円錐形をしている。そして、検出器は、集
光面左端の小径側開口２に配される。 In this type of conical condensing system, the converging surface 1 has a conical shape, as shown in FIG. The detector is disposed at the small-diameter opening 2 at the left end of the light-converging surface.
ところで円錐集光系は製作、加工が容易で入手
し易いものであるが、反面、視野が円形であるた
め、例えば人体のように長寸体の検出には適切で
はないといえる。このため、人体等の検出には楕
円錐集光系を用いることが望ましいといえる。し
かし楕円錐集光系の場合、形状が幾何学的に複雑
なため、製作、加工が容易でなく、コストも非常
に高くて入手し難いという不利がある。 Incidentally, a conical condensing system is easy to manufacture and process, and is easily available, but on the other hand, since the field of view is circular, it is not suitable for detecting a long body such as a human body. For this reason, it is desirable to use an elliptical cone focusing system for detecting human bodies and the like. However, in the case of an elliptical cone focusing system, since the shape is geometrically complex, it is difficult to manufacture and process, and the cost is very high, making it difficult to obtain.
本考案はこのような点にあつて、安価で入手容
易な円錐集光系に簡易な構成を付加して視野を縦
長或いは横長という被検出体に応じて制限できる
ようにしたものである。 In view of this, the present invention adds a simple configuration to an inexpensive and easily available conical condensing system, thereby making it possible to limit the field of view depending on whether the object is vertically or horizontally long.
次に本考案の一実施例を図面に基づき説明す
る。第２図において、１０は、たとえば、アルミ
ニウムよりなるブロツク体で、両端でそれぞれ外
部に連通する略円錐状の孔を設けてあり、このブ
ロツク体１０内部に円錐集光面１１を形成してあ
る。１２，１２はこの円錐集光面１１内に挿入さ
れる反射板であつて、第３図に示すような略三角
形状に形成され、その側端縁１２ａが集光面１１
の内面に密接するように挿入され、接着剤で接着
等される。反射板１２，１２の長さl1は、ブロツ
ク体１０の長さl2と略等しくするのが良い。 Next, one embodiment of the present invention will be described based on the drawings. In FIG. 2, reference numeral 10 denotes a block body made of aluminum, for example, and has substantially conical holes communicating with the outside at both ends, and a conical light condensing surface 11 is formed inside this block body 10. . Reference numerals 12 and 12 denote reflector plates inserted into the conical condensing surface 11, which are formed into a substantially triangular shape as shown in FIG.
It is inserted so that it is in close contact with the inner surface of the holder, and is bonded with an adhesive or the like. It is preferable that the length l 1 of the reflecting plates 12, 12 be approximately equal to the length l 2 of the block body 10.
この構成によれば、反射板１２，１２を図示の
如く左右に対向させて集光面１１内に入れること
により、左右方向の視野が反射板によつて制限さ
れるので、縦長の検出視野とすることができる。
左右方向の視野の幅は、反射板の対向間隔によつ
て適宜に調整できる。また、横長の視野を得るに
は、反射板を図示とは直角方向の上下に対向した
状態で挿入すればよい。尚、反射板は図示例では
平板を用いているが、一定の曲率をもたせたもの
でもかまわない。また、図示例では２枚の反射板
を用いているが、１枚であつてもかまわないもの
である。その場合、視野は左右或いは上下に非対
象となる。反射板としては、鏡体或いは反射率の
高い金属板、メツキ板等を用いることができる。 According to this configuration, by arranging the reflectors 12, 12 to face each other left and right as shown in the figure and placing them in the condensing surface 11, the field of view in the left and right direction is limited by the reflectors, so that a vertical detection field of view and can do.
The width of the field of view in the left-right direction can be adjusted as appropriate by adjusting the spacing between the reflecting plates. Further, in order to obtain a horizontally long field of view, it is sufficient to insert the reflecting plates so as to face each other vertically in a direction perpendicular to that shown in the drawing. Note that although a flat plate is used as the reflecting plate in the illustrated example, it may be one with a certain curvature. Further, although two reflecting plates are used in the illustrated example, it is also possible to use only one reflecting plate. In that case, the field of view becomes asymmetrical horizontally or vertically. As the reflecting plate, a mirror body, a metal plate with high reflectance, a plating plate, etc. can be used.
以上説明した如く本考案によれば、製作加工が
困難で高価な楕円錐集光系を用いなくても、安価
で入手容易な円錐集光系を用いて視野を縦長、横
長というように被検出体の性状にあわせて適宜視
野を制限し、それによつて外乱影響を少なくして
SN比の向上をはかることができる。 As explained above, according to the present invention, the field of view can be widened vertically or horizontally by using an inexpensive and easily available conical condensing system without using an expensive elliptical conical condensing system that is difficult to manufacture. Limit the field of view appropriately according to the characteristics of the body, thereby reducing the influence of external disturbances.
It is possible to improve the signal-to-noise ratio.
第１図Ａは従来の円錐集光系の断面図、同図Ｂ
は正面図、第２図Ａは本考案の一実施としての円
錐集光系の断面図、同図Ｂは正面図、第３図は反
射板を示す図である。
１０……ブロツク体、１１……集光面、１２…
…反射板。
Figure 1A is a cross-sectional view of a conventional conical focusing system, Figure 1B
2A is a sectional view of a conical condensing system as an embodiment of the present invention, FIG. 2B is a front view, and FIG. 3 is a view showing a reflecting plate. 10...Block body, 11...Light condensing surface, 12...
…a reflector.
Claims (1)
略円錐状の孔を設けて、ブロツク体内部に円錐集
光面を形成し、この円錐集光面内に略三角形状の
反射板を挿入して視野を制限したことを特徴とす
る円錐集光系。 A substantially conical hole is provided in the block body, which communicates with the outside at each end, to form a conical converging surface inside the block body, and a substantially triangular reflecting plate is inserted into this conical converging surface to improve the field of view. A conical condensing system characterized by limited .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9104683U JPS59194705U (en) | 1983-06-11 | 1983-06-11 | conical condensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9104683U JPS59194705U (en) | 1983-06-11 | 1983-06-11 | conical condensing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59194705U JPS59194705U (en) | 1984-12-25 |
| JPH0230738Y2 true JPH0230738Y2 (en) | 1990-08-20 |
Family
ID=30221017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9104683U Granted JPS59194705U (en) | 1983-06-11 | 1983-06-11 | conical condensing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59194705U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0646222B2 (en) * | 1985-10-18 | 1994-06-15 | 株式会社精工舎 | Lighting control clock |
| JPH0636038B2 (en) * | 1985-10-18 | 1994-05-11 | 株式会社精工舎 | Lighting control clock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844472Y2 (en) * | 1978-03-15 | 1983-10-07 | 松下電工株式会社 | Alarm light receiving device |
-
1983
- 1983-06-11 JP JP9104683U patent/JPS59194705U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59194705U (en) | 1984-12-25 |
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