JPS61155719U - - Google Patents
Info
- Publication number
- JPS61155719U JPS61155719U JP3997085U JP3997085U JPS61155719U JP S61155719 U JPS61155719 U JP S61155719U JP 3997085 U JP3997085 U JP 3997085U JP 3997085 U JP3997085 U JP 3997085U JP S61155719 U JPS61155719 U JP S61155719U
- Authority
- JP
- Japan
- Prior art keywords
- light
- rotating plate
- transmitting
- shielding
- section
- 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 3
- 239000000463 material Substances 0.000 claims 2
- 239000012780 transparent material Substances 0.000 claims 2
- 238000000151 deposition Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
Landscapes
- Optical Transform (AREA)
Description
第１図は本考案に係る装置の回転板の側面図を
示し、第２図は同要部斜視図、第３図は本考案の
他実施例を示す回転板の正面図、第４図は従来装
置の側面図を示し、第５図は同従来装置の回転板
の正面図を示す。
１……回転板、３……透光部、４……遮光部、
５……発光素子、７……受光検出部、８……投光
部、９……コリメータ、１０……集光レンズ。
Fig. 1 shows a side view of the rotary plate of the device according to the present invention, Fig. 2 is a perspective view of the same main part, Fig. 3 is a front view of the rotary plate showing another embodiment of the present invention, and Fig. 4 is a side view of the rotary plate of the device according to the present invention. A side view of the conventional device is shown, and FIG. 5 is a front view of the rotating plate of the conventional device. 1... Rotating plate, 3... Light-transmitting part, 4... Light-shielding part,
5... Light emitting element, 7... Light receiving and detecting section, 8... Light projecting section, 9... Collimator, 10... Condensing lens.
Claims (1)
板と、該回転板の一方の面側であつて前記透光部
及び遮光部と対向する位置に設けた投光部と、前
記回転板の他方の面側であつて前記投光部と対向
する位置に設けた受光検出部とからなる回転検出
装置において、前記回転板を透明材にて形成する
と共に、前記遮光部は当該透明回転板に不透明材
を蒸着することにより形成し、前記透光部は不透
明材にて形成した当該遮光部の間の部分にて形成
し、前記投光部は、半導体レーザよりなる発光素
子と、該発光素子の前部位置に離間して設けられ
たコリメータと、該コリメータにより並行にされ
たビームを前記回転板の遮光部及び透光部の部分
に集光させる集光レンズとから形成したことを特
徴とする回転検出装置。 a rotating plate having light-transmitting parts and light-blocking parts arranged around the peripheral edge thereof alternately; a light projecting part provided on one side of the rotating plate at a position facing the light-transmitting part and the light-blocking part; In a rotation detection device comprising a light receiving detection section provided on the other surface side of a rotating plate at a position facing the light projecting section, the rotating plate is formed of a transparent material, and the light shielding section is made of a transparent material. The rotating plate is formed by vapor-depositing an opaque material, the light-transmitting part is formed between the light-shielding parts made of the opaque material, and the light projecting part includes a light-emitting element made of a semiconductor laser; A collimator is provided at a distance in front of the light emitting element, and a condensing lens is configured to condense the beam made parallel by the collimator onto the light-shielding portion and the light-transmitting portion of the rotary plate. A rotation detection device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3997085U JPS61155719U (en) | 1985-03-20 | 1985-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3997085U JPS61155719U (en) | 1985-03-20 | 1985-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61155719U true JPS61155719U (en) | 1986-09-27 |
Family
ID=30548415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3997085U Pending JPS61155719U (en) | 1985-03-20 | 1985-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61155719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02122966A (en) * | 1988-11-02 | 1990-05-10 | Hitachi Ltd | Automatic printing head adjustment mechanism of printer |
-
1985
- 1985-03-20 JP JP3997085U patent/JPS61155719U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02122966A (en) * | 1988-11-02 | 1990-05-10 | Hitachi Ltd | Automatic printing head adjustment mechanism of printer |
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