JPS6288972U - - Google Patents
Info
- Publication number
- JPS6288972U JPS6288972U JP17902285U JP17902285U JPS6288972U JP S6288972 U JPS6288972 U JP S6288972U JP 17902285 U JP17902285 U JP 17902285U JP 17902285 U JP17902285 U JP 17902285U JP S6288972 U JPS6288972 U JP S6288972U
- Authority
- JP
- Japan
- Prior art keywords
- laser radar
- light
- radar device
- transmitting
- obstacle
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Description
第１図は本考案になる光送受信系の構成図、第
２図はレーザレーダの検出エリアを示す概念図、
第３図は従来のレーザレーダの光受信系の一例を
示す構成図、第４図は従来の光送受信系の一例を
示す構成図、第５図は従来のレーザレーダの構成
を示すブロツク図、第６図はレーザダイオードの
指向性図、第７図はホトダイオードの指向性図、
第８図は本考案の検出エリアを説明する図、第９
図は従来のレーザレーダの検出エリアの一例を示
す図、第１０図は本考案になるレーザレーダの検
出エリアを示す図、第１１図はレーザレーダの送
受信パワーの関係を明らかにする説明図である。
３０…ケース、３１…側壁、３２…仕切板Ａ、
３３…仕切板Ｂ、３４…レンズＡ、３５…レンズ
Ｂ、３６…レンズＣ、１５…レーザダイオード。
Figure 1 is a configuration diagram of the optical transmission/reception system of the present invention, Figure 2 is a conceptual diagram showing the detection area of the laser radar,
Fig. 3 is a block diagram showing an example of a conventional optical receiving system of a laser radar, Fig. 4 is a block diagram showing an example of a conventional optical transmitting/receiving system, and Fig. 5 is a block diagram showing the structure of a conventional laser radar. Figure 6 is a directional diagram of a laser diode, Figure 7 is a directional diagram of a photodiode,
Figure 8 is a diagram explaining the detection area of the present invention, Figure 9
Figure 10 shows an example of the detection area of a conventional laser radar, Figure 10 shows the detection area of the laser radar according to the present invention, and Figure 11 is an explanatory diagram showing the relationship between transmitting and receiving power of the laser radar. be. 30... Case, 31... Side wall, 32... Partition plate A,
33... Partition plate B, 34... Lens A, 35... Lens B, 36... Lens C, 15... Laser diode.
Claims (1)
放射し障害物からの反射パルス光の遅延時間より
障害物までの距離を検出するレーザレーダ装置に
おいて、レーザダイオードの光出力および受光素
子の受信方向を各々扇状に少なくとも３分割し該
ビームのビーム幅ならびに光強度を検出距離が遠
い程鋭く配分することを特徴とする車載用レーザ
レーダ装置。 ２ 実用新案登録請求の範囲第１項において、送
信および受信素子の前部に扇形ホーン形状の光導
波路の内部の半径方向に２つ以上の仕切板を入れ
該仕切板で構成される分割された各光導波路内に
各々送受信素子に焦点を結ぶようにレンズを配置
した集光レンズ系を配置したことを特徴とする車
載用レーザレーダ装置。[Scope of Claim for Utility Model Registration] 1. In a laser radar device that emits a light pulse wave by a semiconductor laser diode and detects the distance to an obstacle from the delay time of the pulse light reflected from the obstacle, the light output and light reception of the laser diode An on-vehicle laser radar device characterized in that the receiving direction of the element is divided into at least three fan-shaped sections, and the beam width and light intensity of the beam are distributed more sharply as the detection distance becomes longer. 2. In claim 1 of the claims for utility model registration, two or more partition plates are provided in the radial direction inside the fan-shaped horn-shaped optical waveguide in the front part of the transmitting and receiving elements, and the divided structure is constituted by the partition plates. 1. A vehicle-mounted laser radar device characterized in that a condensing lens system having a lens arranged so as to focus on each transmitting/receiving element is disposed in each optical waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17902285U JPS6288972U (en) | 1985-11-22 | 1985-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17902285U JPS6288972U (en) | 1985-11-22 | 1985-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6288972U true JPS6288972U (en) | 1987-06-06 |
Family
ID=31121703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17902285U Pending JPS6288972U (en) | 1985-11-22 | 1985-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6288972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005538384A (en) * | 2002-09-07 | 2005-12-15 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Automotive sensor arrangement and spacing control method |
-
1985
- 1985-11-22 JP JP17902285U patent/JPS6288972U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005538384A (en) * | 2002-09-07 | 2005-12-15 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Automotive sensor arrangement and spacing control method |
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