CN2828876Y - Polarized-light photoelectric coupler - Google Patents
Polarized-light photoelectric coupler Download PDFInfo
- Publication number
- CN2828876Y CN2828876Y CN 200420063922 CN200420063922U CN2828876Y CN 2828876 Y CN2828876 Y CN 2828876Y CN 200420063922 CN200420063922 CN 200420063922 CN 200420063922 U CN200420063922 U CN 200420063922U CN 2828876 Y CN2828876 Y CN 2828876Y
- Authority
- CN
- China
- Prior art keywords
- polarized
- utility
- model
- light
- polaroid
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The utility model discloses a polarized light photoelectric coupler which utilizes two polarized pieces which are relatively rotated to change passing luminous flux. Compared with the existing photoelectric couplers of a plurality of forms, the utility model has the advantages of simple structure, small volume, compactness and component structure; the change characteristic is a straight line within an 80 DEG speed regulating range; therefore, the utility model is an ideal photoelectric coupling device and the utility model can be also used in other regulating mechanisms. The utility model is characterized in that one end of an inner axial lead of a fixing sleeve 1 is fixedly provided with a photocell 1, and the other end of the inner axial lead is coaxially and fixedly provided with an LED light-emitting diode 5; two polarized piece films are added into a light path from the LED light-emitting diode to the photocell, and the polarized piece film which is adjacent to the photocell 2 is a fixed polarized piece film 3; a moving polarized piece 4 which is rotated along with a driving shaft 6 is fixed between the fixed polarized piece film 3 and the LED light-emitting diode 5, and the driving shaft 6 is connected with a swing arm pulley wheel. The utility model utilizes a polarized light method to adjust photoelectric coupling characteristics.
Description
Technical field:
The utility model is the photoelectrical coupler in a kind of cinematographic equipment.
Technical background:
Existing product is to control servomotor with microswitch more easily, makes large stretch of dish loiter to stablize and send sheet.More all adopt the broadcasting and TV control mode, utilize the infraluminescence pipe, change by reflection angle, the light signal that reflexes on the photoelectric cell also changes, so it is the photocurrent of photoelectric cell output also changes and changes along with the angle of reflector, fast and slow through the large stretch of dish of anti-big circuit control driven by servomotor again.Also having a kind of is to become long-pending formula photoelectrical coupler, changes photronic light-receiving area the output photocurrent is changed, and these several volumes are big in a word, complex structure.
Summary of the invention:
The utility model purpose is to disclose a kind of polarized light photoelectrical coupler, utilize two polaroids relatively rotation change what of the luminous flux that passed through.The utility model is compared with existing several form photoelectrical couplers, and its advantage is: simple in structure, volume is little and compact, form componentization, in 80 degree speed adjustable ranges, variation characteristic is a straight line, is a kind of desirable photoelectric coupled device, also can be used for other governor motion.
The utility model is formed and is comprised, fixed cover 1, photoelectric cell 2,5 two polaroid films of LED luminotron, it is characterized in that: at fixed cover 1 inner axes line place one end fixed light battery 2, the other end is coaxial fixes a LED luminotron 3, in photronic light path, install two polaroid films at the LED luminotron additional, be fixing polaroid 3 near the polaroid film of photoelectric cell 2, the movable polaroid 4 that rotates with driving shaft 6 fixedly is being housed between polaroid 3 and the LED luminotron 5, driving shaft 6 is connected with swinging arm pulley, utilizes polarized-light technique to adjust the photoelectricity coupled characteristic.
Description of drawings
Fig. 1 is the utility model structure cut-open view;
Fig. 2 is that the A-A of Fig. 1 is to view.
Embodiment:
The utility model installs two polaroid films additional between visible light LED luminotron and photoelectric cell, a slice is a stator, and a slice is an adjustment sheet.Regulate the polarization axle phase place, light transmission rate promptly changes, and is 90 when spending at polarization axle, and light transmission rate is close to 0.When polarization axle overlapped, light transmission rate was near 100%, and changing in 10-80 degree scope is linear basically, driving shaft one rotation activity polaroid also rotates, the light intensity that shines on the photoelectric cell 2 also changes, so the photocurrent of battery output also changes, thereby reaches the purpose of control.Can obtain photoelectricity coupling ideal behavior.The characteristics volume is little, and is simple in structure, and the photoelectric cell good output can be used in the various automatic control systems.
Claims (1)
1. polarized light photoelectrical coupler, composition comprises: fixed cover (1), photoelectric cell (2), LED luminotron (5) and two polaroid films, it is characterized in that: at fixed cover (1) inner axes line place one end fixed light battery (2), the coaxial LED luminotron (3) of fixing of the other end, in photronic light path, install two polaroid films at the LED luminotron additional, be fixing polaroid (3) near the polaroid film of photoelectric cell (2), the movable polaroid (4) that rotates with driving shaft (6) fixedly is being housed between polaroid (3) and the LED luminotron (5), driving shaft (6) is connected with swinging arm pulley, utilizes polarized-light technique to adjust the photoelectricity coupled characteristic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063922 CN2828876Y (en) | 2004-12-08 | 2004-12-08 | Polarized-light photoelectric coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063922 CN2828876Y (en) | 2004-12-08 | 2004-12-08 | Polarized-light photoelectric coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828876Y true CN2828876Y (en) | 2006-10-18 |
Family
ID=37080431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063922 Expired - Fee Related CN2828876Y (en) | 2004-12-08 | 2004-12-08 | Polarized-light photoelectric coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828876Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629705B (en) * | 2008-07-14 | 2011-05-18 | 展晶科技(深圳)有限公司 | Encapsulating structure of LED element and manufacturing method thereof |
-
2004
- 2004-12-08 CN CN 200420063922 patent/CN2828876Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629705B (en) * | 2008-07-14 | 2011-05-18 | 展晶科技(深圳)有限公司 | Encapsulating structure of LED element and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103255977B (en) | Hidden door closer | |
| CN203513991U (en) | Needle pitch transforming mechanism of sewing machine | |
| CN101738609B (en) | Laser distance-measuring device and control method thereof | |
| CN201868012U (en) | Demonstrator for measuring refractive index of solid and Brewster angle | |
| CN2828876Y (en) | Polarized-light photoelectric coupler | |
| CN104266584A (en) | Automatic feedback light intensity adjusting device for laser self-mixing interference system | |
| CN103707995A (en) | Bicycle derailleur | |
| CN203133368U (en) | Transmission structure of simple imaging instrument electric lens | |
| CN203631718U (en) | Satellite double-opposite-surface box type portable station feed source bracket device | |
| CN203318122U (en) | Full-automatic automobile sunscreen device | |
| CN211926988U (en) | Sampling metering device | |
| CN208516291U (en) | A kind of plane conveyer belt type mould group | |
| CN209373108U (en) | A kind of range unit | |
| CN208353115U (en) | A kind of pneumatic diaphragm pump motor | |
| CN103047580A (en) | Light emitting diode (LED) head-shaking light | |
| CN200990572Y (en) | Driving device for photovoltaic power generating light-focusing device | |
| CN208420679U (en) | A kind of detection label construction of label machine | |
| CN208498587U (en) | A kind of omni-directional wheel steering mechanism of ground crusing robot | |
| CN206906697U (en) | Electronic three-ring type Polarization Controller | |
| CN202206334U (en) | High concentration photovoltaic power generation server | |
| CN220231484U (en) | Wafer direction identification device | |
| CN201788414U (en) | Electromechanical device for tracking sun through guiding of prisms | |
| TW200711455A (en) | Calibration mechanism of a scanner | |
| CN204666580U (en) | A kind of liquid chromatograph deuterium tungsten lamp conversion equipment of Electromagnetic Drive | |
| CN2788158Y (en) | Sinusoidal mechanism adjusting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061018 Termination date: 20101208 |