Supercharge Your Innovation With Domain-Expert AI Agents!

Optical scanning double-layer light guide encoder

A technology of optical scanning and optical encoder, which is applied in the field of encoders, can solve the problem that the resolution of light-guiding encoders cannot be significantly improved, and achieve the effect of avoiding light diffraction and improving resolution

Active Publication Date: 2020-04-21
曾吉旺
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, in the conventional technology, the photosensitive chips S1 and S2 of the photosensor module 3 are arranged along the same longitudinal axis, therefore, the light guide grating wheel 1' needs two blades to complete an encoding sequence or sequence [1, 1], [0,1], [1,0] and [0,0], so the resolution of the light guide encoder cannot be significantly improved

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical scanning double-layer light guide encoder
  • Optical scanning double-layer light guide encoder
  • Optical scanning double-layer light guide encoder

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0070] Please refer to Figures 12 to 15 as shown, Figures 12 to 15 When the double-layer light guide grating wheel 1 of the optical scanning double-layer light guide encoder E provided by the first embodiment of the present invention rotates to the first, second, third and fourth positions, the parallel light beam Or a partial schematic diagram of the relationship between the near-parallel light beam P and the light sensing module 3 .

[0071] Specifically, as Figure 12 As shown, the light sensing module 3 includes a strip-shaped first sensing element 31' and a second sensing element 32', the two sensing elements have the same width D1, and their two ends are aligned with each other, The photo-sensing module 3 also has a width D1. A grating 4 with a width greater than D1 is further provided between the photo-sensing module 3 and the double-layer light-guiding grating wheel 1, which is used to shield certain areas of the first sensing element 31' and the second sensing el...

no. 2 Embodiment

[0079] Next, see Figures 16 to 20 , Figures 16 to 19 The double-layer light guide grating wheel 1 of the optical scanning double-layer light guide encoder E provided by the second specific embodiment of the present invention is in different positions, that is, the first position (1) to the fourth position (4) , a partial schematic diagram of the relationship between the parallel light beam or the near-parallel light beam P and the light sensing module 3, and Figure 20 The schematic diagram of the signal generated by the light sensing module in this embodiment after receiving the light beam.

[0080] exist Figures 16 to 19 Among them, the first sensing element 31' and the second sensing element 32' of the light sensing module 3 expose the first bare sensing region 31 and the second sensing area 31 through the first opening 41 and the second opening 42 of the grating 4 respectively. Two exposed sensing regions 32 . The first bare sensing region 31 and the second bare sen...

no. 3 Embodiment

[0088] Next, Figure 21 and 22 A schematic diagram further illustrating the generation of encoded signals by the optical scanning double-layer light guide encoder E provided in the third specific embodiment of the present invention. in particular, Figure 21 When the double-layer light guide grating wheel 1 of the optical scanning double-layer light guide encoder E provided by the third embodiment of the present invention is in the first position (1), it is parallel to the parallel light beam or the near-parallel light beam P and the light sensor A partial schematic diagram of the relationship between the measurement modules 3, and Figure 22 for Figure 21 A schematic diagram of the signal generated by the light sensing module 3 used after receiving the light beam.

[0089] Different from the previous embodiments, in this embodiment, the light sensing module 3 is composed of a first sensing element 31', a second sensing element 32', a third sensing element 33' and a fourt...

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

No PUM Login to View More

Abstract

The invention provides an optical scanning double-layer light guide encoder, which comprises a double-layer light guide grating wheel, a light emitting module and a light sensing module, wherein the light sensing module comprises a plurality of sensing assemblies adjacent to the double-layer light guide grating wheel, and a plurality of exposed sensing regions of the plurality of sensing assemblies are transversely triggered with each other and are arranged in a mode of transversely extending along a plurality of different mutually parallel horizontal lines. The optical scanning double-layer light guide encoder provided by the invention can enable a light beam projected on the light sensing module to mutually cooperate with the plurality of exposed sensing regions of the plurality of sensing assemblies, thereby improving the resolution capability of the encoder without increasing the size and blade number of the double-layer light guide grating wheel.

Description

technical field [0001] The invention relates to an encoder, in particular to an optical scanning double-layer light guide encoder. Background technique [0002] The monitor of the current computer uses the mouse to move the position of the data to be processed to a specific data position on the monitor. The main structure of a general mouse includes two sets of X-axis and Y-axis encoders that can output sequential logic signals (such as 11, 10, 00, 01). By moving the bottom surface of the mouse to the desktop or other planes to a specific direction, the monitor can be monitored. The position of the data to be processed by the device is relatively shifted. The principle of using the mouse to move the data position on the monitor is basically to use the simultaneous operation of the X-axis and Y-axis encoders to generate a point movement on a plane. In other words, operating the X-axis encoder or Y-axis encoder alone can only move the line point. The encoder is generally co...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/38
CPCG01D5/38
Inventor 曾吉旺
Owner 曾吉旺
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com