Light beam offset device, scanning method, scanning device and display device
A technology of offset device and scanning device, which is applied in the field of scanning, can solve the problems of long response time, difficult control, long time required, etc., and achieve the effect of simple control, good scanning effect and high accuracy
Pending Publication Date: 2021-10-12
APPOTRONICS CORP LTD
View PDF0 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, the most commonly used beam deflection device is a scanning galvanometer, which is a special swing motor. The basic principle is to generate torque in a magnetic field through a coil. It cannot rotate like an ordinary motor, and can only control the periodicity of the mirror by deflection. When the light is irradiated on the reflector, the deflection scanning of the light is realized with the swing of the reflector; since the deflection is used to control the movement of the reflector, nonlinear control is realized, and two adjacent scanning beams are in the horizontal direction The distance in the vertical direction is fixed. In order to move the scanning beam to the next preset position, the required driving force changes nonlinearly. The swing motor cannot rotate at a uniform speed. The size of the driving force needs to be calculated for each deflection, which requires precision. Higher algorithm is used to control, the control is more difficult, and the time required is longer, resulting in longer response time and unable to achieve fast scanning
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0034] Since the refractive index of the transparent plate (mostly made of glass material) is different from that of air, the light will be refracted twice when it passes through, so that the position of the exit point of the light has a certain translation relative to the incident point, such as figure 1 As shown, the inclined transparent plate can translate the input light by a certain distance, and the angle of inclination, the thickness of the transparent p...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a light beam offset device, a scanning method, a scanning device and a display device. The light beam offset device comprises a driver and a light offset plate driven by the driver to rotate, the light offset plate comprises a plurality of offset areas, and the refractive indexes or thicknesses of the offset areas monotonically change along the rotation direction of the light offset plate, so that the scanning light beams are sequentially offset by a preset offset in the rotation period, wherein a preset inclination angle is formed between the light beam offset device and the scanning light beams. By the above mode, the scanning light beams can be sequentially offset by the preset offset, and the device is simple in structure and is easy to control.
Description
technical field [0001] The present application relates to the field of scanning technology, in particular to a beam shifting device, a scanning method, a scanning device and a display device. Background technique [0002] At present, the most commonly used beam deflection device is a scanning galvanometer, which is a special swing motor. The basic principle is to generate torque in a magnetic field through a coil. It cannot rotate like an ordinary motor, and can only control the periodicity of the mirror by deflection. When the light is irradiated on the reflector, the deflection scanning of the light is realized with the swing of the reflector; since the deflection is used to control the movement of the reflector, nonlinear control is realized, and two adjacent scanning beams are in the horizontal direction The distance in the vertical direction is fixed. In order to move the scanning beam to the next preset position, the required driving force changes nonlinearly. The swin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/08G02B26/10
CPCG02B26/0875G02B26/10G02B26/08
Inventor 张翠萍严子深胡飞余新李屹
Owner APPOTRONICS CORP LTD