Patent · US Active

Image projection apparatus

US10921701B2 · kind B2 · utility

1Cited by
1References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 3, 2018
Grant dateFeb 16, 2021
Priority date
Expiry dateDec 3, 2038

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF41H3/00
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An image projection apparatus includes: a projector; a projection control apparatus; and a color tone sensor. The projector projects an image. The projection control apparatus causes the projector to perform a projection on a surface of a target serving as a projection target. The color tone sensor detects a color tone of the surface of the target on which an image is projected. The projection control apparatus adjusts a color tone of an image to be projected on a basis of a detection result of the color tone sensor such that the color tone detected by the color tone sensor has a predetermined value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.