JPS6440927A - Polarization controller - Google Patents
Polarization controllerInfo
- Publication number
- JPS6440927A JPS6440927A JP19765187A JP19765187A JPS6440927A JP S6440927 A JPS6440927 A JP S6440927A JP 19765187 A JP19765187 A JP 19765187A JP 19765187 A JP19765187 A JP 19765187A JP S6440927 A JPS6440927 A JP S6440927A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic motors
- wavelength plate
- rotors
- rotor
- ultrasonic
- 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
Landscapes
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
PURPOSE:To eliminate the need for a transmission system and to perform accurate polarization control by installing a wavelength plate inside the rotor of an ultrasonic motor with a ring-shaped rotor and rotating the wavelength plate together by the rotation of the rotor. CONSTITUTION:This controller is equipped with 1st and 2nd ultrasonic motors 101 and 103 which are installed on a motor support base 100 and 1st and 2nd power sources 107 and 108 which supply electric power to the ultrasonic motors 101 and 103 respectively, and the ultrasonic motors 101 and 103 are a ring type and have their centers of rotation aligned with each other. A 1/4 wavelength plate 102 and a 1/2 wavelength plate 104 are fixed inside the rotors of the ultrasonic motors 101 and 103 respectively and rotate together with the rotors. The rotational positions of the rotors of the ultrasonic motors 101 and 103 are controlled with voltages applied from the power sources 107 and 108. Consequently, a transmission system such as a gear and a belt is not necessary, and accurate polarization control is enabled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19765187A JPS6440927A (en) | 1987-08-07 | 1987-08-07 | Polarization controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19765187A JPS6440927A (en) | 1987-08-07 | 1987-08-07 | Polarization controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6440927A true JPS6440927A (en) | 1989-02-13 |
Family
ID=16378043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19765187A Pending JPS6440927A (en) | 1987-08-07 | 1987-08-07 | Polarization controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6440927A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007043782A (en) * | 2005-08-01 | 2007-02-15 | Toyo Electric Corp | Ac power controller |
| JP5105567B1 (en) * | 2012-04-19 | 2012-12-26 | 信越エンジニアリング株式会社 | Photo-alignment irradiation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59111609A (en) * | 1982-12-17 | 1984-06-27 | Nippon Kogaku Kk <Nikon> | Lens barrel |
| JPS62127704A (en) * | 1985-11-28 | 1987-06-10 | Nippon Telegr & Teleph Corp <Ntt> | Polarized wave controlling circuit |
-
1987
- 1987-08-07 JP JP19765187A patent/JPS6440927A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59111609A (en) * | 1982-12-17 | 1984-06-27 | Nippon Kogaku Kk <Nikon> | Lens barrel |
| JPS62127704A (en) * | 1985-11-28 | 1987-06-10 | Nippon Telegr & Teleph Corp <Ntt> | Polarized wave controlling circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007043782A (en) * | 2005-08-01 | 2007-02-15 | Toyo Electric Corp | Ac power controller |
| JP5105567B1 (en) * | 2012-04-19 | 2012-12-26 | 信越エンジニアリング株式会社 | Photo-alignment irradiation device |
| WO2013157113A1 (en) * | 2012-04-19 | 2013-10-24 | 信越エンジニアリング株式会社 | Photo-orienting illumination device |
| KR101462273B1 (en) * | 2012-04-19 | 2014-11-17 | 가부시키가이샤 에프케이 코우카쿠 겐큐쇼 | Light illuminating apparatus for photo-alignment |
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