JPS6384555U - - Google Patents
Info
- Publication number
- JPS6384555U JPS6384555U JP18060286U JP18060286U JPS6384555U JP S6384555 U JPS6384555 U JP S6384555U JP 18060286 U JP18060286 U JP 18060286U JP 18060286 U JP18060286 U JP 18060286U JP S6384555 U JPS6384555 U JP S6384555U
- Authority
- JP
- Japan
- Prior art keywords
- windshield
- light
- sensor
- edge
- incident
- 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
- 239000011521 glass Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000007257 malfunction Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図はこの考案の一実施例による前面ガラス
用液滴センサの概略図、第２図は受光素子側の拡
大図、第３図は従来の液滴センサの概略図、第４
図は従来の液滴センサの拡大図、第５図は液滴の
検出方法の説明図、第６図に外部光のガラス板内
部での減衰状態の説明図、第７図は光の屈折と反
射を示す説明図、第８図は液滴の検出方法を実験
により確認した例の説明図、第９図は第８図の回
路図である。
１…光源、２…受光素子、３…前面ガラス、４
…遮蔽板。なお、図中同一符号は同一又は相当部
分を示す。
Fig. 1 is a schematic diagram of a droplet sensor for a front glass according to an embodiment of this invention, Fig. 2 is an enlarged view of the light receiving element side, Fig. 3 is a schematic diagram of a conventional droplet sensor, and Fig. 4 is a schematic diagram of a droplet sensor for a front glass according to an embodiment of the invention.
The figure is an enlarged view of a conventional droplet sensor, Figure 5 is an explanatory diagram of the droplet detection method, Figure 6 is an explanatory diagram of the attenuation state of external light inside the glass plate, and Figure 7 is an illustration of the refraction of light. An explanatory diagram showing reflection, FIG. 8 is an explanatory diagram of an example of a droplet detection method confirmed through experiment, and FIG. 9 is a circuit diagram of FIG. 8. 1...Light source, 2...Light receiving element, 3...Front glass, 4
…Shield. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
磁波を入射させ、この電磁波を反対側のガラス端
面に配設した検出手段に入光する光の量の変化を
検出して上記前面ガラスに付着した水滴を検出す
るものにおいて、外部からの防害光による誤動作
を防止するため、受光側端面からガラス板厚の４
倍以上の幅を有する遮蔽板、遮蔽テープまたは塗
装を前面ガラスに施こしたことを特徴とする自動
車の前面ガラス用液滴センサ。 Electromagnetic waves such as visible light are incident on the edge of the windshield of a car, and water droplets attached to the windshield are detected by detecting changes in the amount of light that enters the detection means installed on the opposite glass edge. In order to prevent malfunction due to external pollution light, the sensor should be placed 4 mm thick from the light receiving side end face.
A droplet sensor for a windshield of an automobile, characterized in that the windshield is coated with a shielding plate, shielding tape, or coating having a width that is at least twice as wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18060286U JPS6384555U (en) | 1986-11-24 | 1986-11-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18060286U JPS6384555U (en) | 1986-11-24 | 1986-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6384555U true JPS6384555U (en) | 1988-06-02 |
Family
ID=31124706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18060286U Pending JPS6384555U (en) | 1986-11-24 | 1986-11-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6384555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101065601B1 (en) * | 2003-11-08 | 2011-09-20 | 로베르트 보쉬 게엠베하 | Rain sensor for detecting moisture on a glass panes |
-
1986
- 1986-11-24 JP JP18060286U patent/JPS6384555U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101065601B1 (en) * | 2003-11-08 | 2011-09-20 | 로베르트 보쉬 게엠베하 | Rain sensor for detecting moisture on a glass panes |
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