Unlock instant, AI-driven research and patent intelligence for your innovation.

Marker

A marker and convex technology, applied in the field of markers, can solve the problem of not being able to properly observe the image of the pattern, and achieve the effect of not easy spherical aberration

Inactive Publication Date: 2018-11-09
ENPLAS CORP
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the marker described in Patent Document 1, it is conceivable that there is a problem that the image of the pattern cannot be observed appropriately depending on the position of observation.

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
  • Marker
  • Marker
  • Marker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0025] (Structure of Marker)

[0026] Figure 1A , Figure 1B It is a figure which shows the structure of the marker 100 which concerns on Embodiment 1 of this invention. Figure 1A is a plan view of the marker 100 according to Embodiment 1 of the present invention, Figure 1B is the main view.

[0027] Such as Figure 1A and Figure 1B As shown, marker 100 has a surface (first side) 120 and a back side (second side) 140 . The material of the marker 100 is not particularly limited as long as it has translucency. Examples of the material of the marker 100 include transparent resins such as polycarbonate, acrylic resin, cycloolefin polymer (COP), cycloolefin copolymer (COC), glass, and the like. In this embodiment, the material of the marker 100 is a cycloolefin copolymer (COC) having a refractive index nd of 1.54. The surface 120 includes a plurality of cylindrical convexities 121 . In addition, the back surface 140 includes a plurality of detected portions 141 and a plur...

Embodiment approach 2

[0053] In the marker 200 of the second embodiment, only the relationship between the distance between the vertices 123 of the convex surface 121 and the distance between the centers of the detected parts 241 is different from the configuration of the marker 100 of the first embodiment. Therefore, the same reference numerals are assigned to the same configurations as those of the marker 100 according to Embodiment 1, and description thereof will be omitted.

[0054] Figure 4A , Figure 4B It is a figure which shows the structure of the marker 200 which concerns on Embodiment 2 of this invention. Figure 4A It is a plan view of the marker 200 according to Embodiment 2 of the present invention, Figure 4B is the main view. Such as Figure 4A and Figure 4B As shown, the marker 200 of Embodiment 2 has a first surface 120 and a second surface 240 . The first surface 120 has a plurality of convex surfaces 121 . In addition, the second surface 240 has a plurality of detected ...

Embodiment approach 3

[0058] In the marker 300 according to the third embodiment, the shape of the convex surface 321 , the shape of the detected portion 341 , and the shape of the reflection portion 342 are different from those of the marker 100 according to the first embodiment. Therefore, the same reference numerals are assigned to the same configurations as those of the marker 100 according to Embodiment 1, and description thereof will be omitted.

[0059] Figure 5A ~ Figure 5C It is a figure which shows the structure of the marker 300 which concerns on Embodiment 3 of this invention. Figure 5A It is a plan view of the marker 300 according to Embodiment 3 of the present invention, Figure 5B It is a partially enlarged cross-sectional view with hatching omitted, Figure 5C It is a bottom view.

[0060] Such as Figure 5A ~ Figure 5C As shown, the marker 300 of Embodiment 3 has a first surface 320 and a second surface 340 . The first surface 320 includes a plurality of convex surfaces 321 ...

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

A marker according to the present invention is formed of a translucent material, and comprises at least: a plurality of protruding surfaces arranged in a first direction; and a plurality of portions to be detected which are arranged at positions on the reverse side to the plurality of protruding surfaces and which are projected, as optically detectable images, onto the plurality of protruding surfaces. Each of the cross-sectional shapes of the plurality of protruding surfaces in a cross section in the height direction of the marker along the first direction is a curved line having a curvatureradius which increases with increase in a distance from the vertex of the curved line.

Description

technical field [0001] The present invention relates to markers. Background technique [0002] In recent years, in fields such as augmented reality (Augmented Reality: AR) or robotics, as a marker for recognizing the position and posture of an object, an image display based on a combination of a lens and a pattern has been used (for example, refer to Patent Document 1). [0003] Patent Document 1 discloses a marker including: a lens plate in which a plurality of cylindrical lenses are arranged; and an image forming layer including an image corresponding to each of the cylindrical lenses. The cylindrical lens is formed in such a way that its focus is on the image. When the marker is viewed from the side of the cylindrical lens, the observed image of the pattern shifts or deforms depending on the observed position. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. 2013-025043 Contents of the invention [0...

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
IPC IPC(8): G01B11/00G01B11/26G02B3/00G03B35/00
CPCG03B35/00G02B3/005G01B11/002G01B11/00G01B11/26G02B3/06G02B27/18
Inventor 齐藤共启
Owner ENPLAS CORP
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