Supercharge Your Innovation With Domain-Expert AI Agents!

Laser designator and optical input device

A laser pointer, optical input technology, applied in the input/output process of data processing, optics, instruments, etc., can solve the problem of not suitable for optical touch panel systems with non-self-recovery materials

Inactive Publication Date: 2013-11-13
SHARP KK
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Multiple wavelengths of light in the output beams of laser pointers as described in Patent Documents 1 and 2 are spatially mixed together and are not suitable for optical touchpad systems with non-self-restoring materials

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
  • Laser designator and optical input device
  • Laser designator and optical input device
  • Laser designator and optical input device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0044] figure 1 is a schematic diagram showing the optical input device 10 according to the first embodiment of the present invention.

[0045] Such as figure 1 As shown, the optical input device 10 includes an optical input panel 110 and a laser pointer 120 .

[0046] The light input panel may be a transparent panel comprising light sensitive material. The photosensitive material may include: any one of photochromic material, photorefractive material and photodeformable material.

[0047] When the light input panel 110 is placed in front of a display screen, the user can see the content displayed on the display screen. As an example, in figure 1 shows that two buttons to be indicated are displayed on the display screen: an OK button and a Cancel button.

[0048] As an example, in this embodiment, the photosensitive material is composed of bisthiophen-3-yl-perfluorocyclopentene.

[0049] figure 2is a schematic diagram showing the optical properties of this photosensiti...

no. 2 example

[0065] Figure 5 is a block diagram showing the structure of the laser pointer 500 according to the second embodiment of the present invention.

[0066] Such as Figure 5 Therefore, the structure of the laser pointer 500 is similar to that of the laser pointer 300 according to the first embodiment of the present invention, except that the bandpass filter 350 is replaced by a half mirror 550 .

[0067] The ring-shaped 700nm light beam is incident on the half-mirror 550, part of it is transmitted through, and part of it is reflected. Similarly, the 400nm light beam is incident on the half-mirror 550, part of it is transmitted and part of it is reflected. The transmitted 700nm beam combines with the reflected 400nm beam to form a coaxial beam as in the first embodiment.

no. 3 example

[0069] Figure 6 is a block diagram showing the structure of the laser pointer 600 according to the third embodiment of the present invention.

[0070] As shown in the figure, the laser pointer 600 according to the third embodiment includes: a light source 610 and a light source 620 ; a light blocking device 630 ; and an optical train 640 .

[0071] The light source 610, the light source 620, and the light blocking device 630 are the same as those in the laser pointers according to the first and second embodiments.

[0072] In the laser pointer 600, the light emitted by the light source 610 and the light source 620 are collimated and travel in parallel. The optical path combiner includes an optical train 640, including a mirror on the optical path of the 400nm light beam and a bandpass filter on the optical path of the 700nm light beam. The 400nm light beam is reflected by the mirror and then incident on the bandpass filter. This band-pass filter is the same as the band-pas...

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 a laser designator. The laser designator comprises at least two light sources and a light path synthesizer, wherein the at least two light sources are used for emitting at least first wavelength light and second wavelength light respectively; the light path synthesizer is used for enabling a first light beam of the first wavelength light and a second light beam of the second wavelength light to be synthesized to form an output light beam; in the output light beam, the optical axis of the first light beam is parallel with the optical axis of the second light beam, and the first light beam is located on the periphery of the second light beam. By means of the single laser designator, input is conducted by changing the optical properties of light-sensitive materials on an optical input panel, and the light-sensitive materials can restore the initial optical properties after a light spot is moved off. The invention further provides an optical input device with the laser designator utilized.

Description

technical field [0001] The present invention relates to a laser pointer, and more particularly, to a multi-wavelength laser pointer and an optical input device using the laser pointer. Background technique [0002] Currently, touch panels have been widely used. The input technology for the touch panel system also receives people's attention thereupon. One of the main input technologies for the touch panel system is to use light waves for input through remote control and other methods without approaching the system. Conventional laser pointers emit a monochromatic light. For example, in a conventional projector, a laser pointer emits red light, creating a red spot on the projector's screen to show the user viewing the presentation where it is pointing. However, such laser pointers cannot be applied to LCD screens because current LCD screens are processed to have low surface reflectivity, such as being laminated with an anti-reflection layer, so when the LCD screen is irrad...

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): G02B27/20G02B27/09G02B27/10G06F3/042
Inventor 张彤刘宇
Owner SHARP KK
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