US 12,032,229 B2
Contact lens
Masanori Iwasaki, Kanagawa (JP); Naoto Yamaguchi, Tokyo (JP); Tsukasa Yoshimura, Tokyo (JP); Masakazu Yajima, Kanagawa (JP); Fumiko Shiga, Tokyo (JP); and Ken Hayakawa, Kanagawa (JP)
Assigned to SONY CORPORATION, Tokyo (JP)
Appl. No. 16/753,689
Filed by SONY CORPORATION, Tokyo (JP)
PCT Filed Aug. 6, 2018, PCT No. PCT/JP2018/029412
§ 371(c)(1), (2) Date Apr. 3, 2020,
PCT Pub. No. WO2019/073676, PCT Pub. Date Apr. 18, 2019.
Claims priority of application No. 2017-199360 (JP), filed on Oct. 13, 2017.
Prior Publication US 2020/0271956 A1, Aug. 27, 2020
Int. Cl. G02C 7/04 (2006.01); A61B 5/00 (2006.01); G02C 7/12 (2006.01)
CPC G02C 7/04 (2013.01) [A61B 5/6821 (2013.01); G02C 7/12 (2013.01); A61B 2562/0233 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A contact lens, comprising:
a lens unit to be placed on an eyeball of a user;
a sensor device configured to:
sense a position of a pupil in the eyeball, and
output a first sensing signal based on the sensed position of the pupil in the eyeball;
a first optical device, wherein
the first optical device is in a circular region opposite to the pupil in a case where the lens unit is placed on the eyeball,
the first optical device is configured to:
provide a first action different from an action of the lens unit to light that enters the eyeball in a light incident direction,
change a degree of the first action based on an amount of heat, and
perform wavelength conversion of an invisible spectrum of the light that enters the eyeball to a visible spectrum of the light,
the circular region overlaps the pupil in the light incident direction in a state where the pupil is contracted, and
the first optical device is embedded within the lens unit such that the first optical device is spaced apart from the eyeball in the light incident direction;
a control unit configured to:
determine one of a direction or a movement of a line of sight of the user based on the first sensing signal outputted from the sensor device, and
control the degree of the first action of the first optical device based on the determined one of the direction or the movement of the line of sight; and
a second optical device in a ring region opposite to an outer edge of the pupil, wherein
the outer edge of the pupil becomes large by expansion in the case where the lens unit is placed on the eyeball,
the second optical device is configured to provide a second action different from the action of the lens unit to the light that enters the eyeball,
the second action includes one of attenuation of infrared light included in the light that enters the eyeball or expansion of a band of wavelength distribution included in the light that enters the eyeball, and
the second optical device is spaced apart from the first optical device.