Title:
INTERACTIVE PROJECTION APPARATUS BASED ON MIXED LIGHT SOURCE
Document Type and Number:
WIPO Patent Application WO/2019/128096
Kind Code:
A1
Abstract:
An interactive projection apparatus (100) based on a mixed light source. The apparatus comprises: a projection and illumination light source (10), an infrared illumination light source (20), a cemented prism set (30), a first reflection unit (40), a beam guiding unit (60) and an image display chip (70), wherein light emitted by the projection and illumination light source (10) is projected to the first reflection unit (40) by means of the cemented prism set (30); the first reflection unit (40) combines the light emitted by the projection and illumination light source (10) with light emitted by the infrared illumination light source (20), and projects the combined mixed light to the beam guiding unit (60); and the beam guiding unit (60) transmits and/or reflects the mixed light, so that the mixed light is incident on the image display chip (70). The projection apparatus does not need to repeatedly debug and correct an infrared illumination light source, such that the projection interaction is more convenient and accurate.
Inventors:
GAO ZHIQIANG (CN)
YEUNG STEVE (CN)
LIN QINGYUN (CN)
YEUNG STEVE (CN)
LIN QINGYUN (CN)
Application Number:
PCT/CN2018/088978
Publication Date:
July 04, 2019
Filing Date:
May 30, 2018
Export Citation:
Assignee:
IVIEW DISPLAYS SHENZHEN CO LTD (CN)
International Classes:
G03B21/00
Foreign References:
| CN104076914A | 2014-10-01 | |||
| CN103454840A | 2013-12-18 | |||
| CN106990651A | 2017-07-28 | |||
| US20140313489A1 | 2014-10-23 |
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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