JPS63101880U - - Google Patents
Info
- Publication number
- JPS63101880U JPS63101880U JP19762286U JP19762286U JPS63101880U JP S63101880 U JPS63101880 U JP S63101880U JP 19762286 U JP19762286 U JP 19762286U JP 19762286 U JP19762286 U JP 19762286U JP S63101880 U JPS63101880 U JP S63101880U
- Authority
- JP
- Japan
- Prior art keywords
- target
- electrical signal
- distance
- photoelectric conversion
- conversion element
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 1
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Description
第１図はこの考案の一実施例を示す測距装置の
構成図、第２図は時間的に変化する閾値曲線図、
第３図は利得減衰された受信光電力と閾値曲線の
時間との関係を示す図、第４図は従来の測距装置
の構成を示す図、第５図は受信光電力と時間との
関係を示す図、第６図は可変利得増幅器の利得減
衰曲線図、第７図は受信光電力と時間との関係を
示す図である。
図において、１はパルスレーザ装置、２はパル
スレーザ光、４は光電変換素子、５は可変利得増
幅器、１２は利得可変信号、１３は閾値制御回路
、Ｒ１，Ｒ２，Ｒ３は抵抗、Ｄはダイオード、Ｖ
は定電圧源である。なお、各図中同一符号は同一
または相当部分を示す。
Fig. 1 is a configuration diagram of a distance measuring device showing an embodiment of this invention, Fig. 2 is a diagram of a threshold curve that changes over time,
Figure 3 is a diagram showing the relationship between gain-attenuated received optical power and time of the threshold curve, Figure 4 is a diagram showing the configuration of a conventional distance measuring device, and Figure 5 is the relationship between received optical power and time. FIG. 6 is a gain attenuation curve diagram of a variable gain amplifier, and FIG. 7 is a diagram showing the relationship between received optical power and time. In the figure, 1 is a pulse laser device, 2 is a pulse laser beam, 4 is a photoelectric conversion element, 5 is a variable gain amplifier, 12 is a variable gain signal, 13 is a threshold control circuit, R1, R2, R3 are resistors, and D is a diode. ,V
is a constant voltage source. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
ザ装置と、目標物からの反射光を検出し電気信号
に変換する光電変換素子と、上記光電変換素子に
より光電変換された電気信号を増幅する可変利得
増幅器と、上記電気信号と雑音とを区別するため
のコンパレータと、上記パルスレーザ光の伝搬遅
延時間から目標までの距離を求める手段とを具備
してなる測距装置において、上記コンパレータの
閾値を時間的に変化させることを特徴とする測距
装置。 A pulse laser device that irradiates a target with pulsed laser light, a photoelectric conversion element that detects reflected light from the target and converts it into an electrical signal, and a variable gain amplifier that amplifies the electrical signal photoelectrically converted by the photoelectric conversion element. and a comparator for distinguishing between the electrical signal and noise, and means for determining the distance to the target from the propagation delay time of the pulsed laser beam, wherein the threshold of the comparator is set temporally. A distance measuring device characterized by changing the distance between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19762286U JPS63101880U (en) | 1986-12-23 | 1986-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19762286U JPS63101880U (en) | 1986-12-23 | 1986-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63101880U true JPS63101880U (en) | 1988-07-02 |
Family
ID=31157539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19762286U Pending JPS63101880U (en) | 1986-12-23 | 1986-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63101880U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005024536A (en) * | 2003-07-01 | 2005-01-27 | Ashu Kogaku Kofun Yugenkoshi | Method and system for light signal reception |
| JP2019060670A (en) * | 2017-09-26 | 2019-04-18 | 株式会社リコー | Time measuring device, range finder, mobile device, time measurement method and range finding method |
-
1986
- 1986-12-23 JP JP19762286U patent/JPS63101880U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005024536A (en) * | 2003-07-01 | 2005-01-27 | Ashu Kogaku Kofun Yugenkoshi | Method and system for light signal reception |
| JP2019060670A (en) * | 2017-09-26 | 2019-04-18 | 株式会社リコー | Time measuring device, range finder, mobile device, time measurement method and range finding method |
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