Mobile terminal including diffractive optical element moved different distances to irradiate different light patterns on a subject

A mobile terminal having a lighting device including a light emitting element, a diffractive optical element (DOE) to diffract a part of light output from the light emitting element, and a driving unit to move the diffractive optical element so as to vary a distance between the light emitting elemen...

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Bibliographic Details
Main Authors Lee, Changhwan, Cho, Ayoung, Shin, Yunsup
Format Patent
LanguageEnglish
Published 28.04.2020
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
TESTING
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Summary:A mobile terminal having a lighting device including a light emitting element, a diffractive optical element (DOE) to diffract a part of light output from the light emitting element, and a driving unit to move the diffractive optical element so as to vary a distance between the light emitting element and the diffractive optical element.
Bibliography:Application Number: US201815980877