Backlight device, light source device, lens, electronic apparatus and light guide plate
AssigneeSony Corporation
InventorTakeo Arai
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a backlight device. The device includes: a light emitting element; a lens having an incident surface on which light emitted by the light emitting element is incident, and an outgoing surface which has an ability to converge the light and from which the light incident on the incident surface goes out; a light guide plate having a light incidence plane and introducing through the incidence plane the light going out from the outgoing surface, so as to perform surface light emission; and a reflective member operative to reflect a portion of the light going out from the outgoing surface of the lens, toward the incidence plane of the light guide plate.
Claims7
A lens for transmitting light, comprising:
- an incident surface adapted to receive light emitted by a light emitting element;
- and
- an outgoing surface configured to converge light and from which a portion of light incident on the incident surface is transmitted toward a reflective member operative to reflect light toward an incidence plane of a light guide plate.
A lens for guiding light, comprising:
- an incident surface which has a principal surface configured to converge light, and a projected surface provided at an end portion of the principal surface and projected from the principal surface;
- and
- an outgoing surface configured to converge light and from which light incident on the incident surface is transmitted.
Dependencies are inferred from the claim text.