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AssigneeNEC Corporation
InventorsSatoshi KYOSUNA, Hirofumi TSUDA, Fujio OKUMURA
Estimating the term…
In order to make a ghost image appearing when projection light is projected using a phase-modulating spatial light modulation element difficult to visually recognize, a projection device includes a light source, a light-source driving means, a spatial light modulation element, a modulation element control means, a projection control means, and a projection optical system, wherein the projection control means controls the light-source driving means and the modulation element control means in such a way as to cause a phase distribution of an image including a ghost compensation image and a desired image to be displayed on a display part, the ghost compensation image being an image for which high brightness is set totally and in which a display information portion to be displayed on a projection surface is bright while a ghost image portion that appears in association with the display information is dark.
A projection device comprising:
A projection method that uses a phase-modulating spatial light modulation element, the projection method comprising:
A non-transitory program recording medium on which a program that uses a phase-modulating spatial light modulation element is recorded, the program causing a computer to execute:
Dependencies are inferred from the claim text.