Nokia Corporation

Pistesarjat Oy

Nokia Technologies Oy

Daseina Oy

Seppo Pienimaa

Tapani Levola

Kong Qiao Wang

Jyrki Kimmel

Antti Salo

Xia Wang

Jarkko Viinikanoja

De-icing mat with a pattern

An apparatus operable in touch-input mode and scanning mode uses a light guide and a camera to look through a slanted facet at one corner of the light guide. The light guide has an upper surface for placing a touch object or an item for scanning. An angular sensitive grating is located on lower surface having fringes such that when a light beam directed from a location P on upper surface toward lower surface at a predefined direction, it is diffracted by the grating and guided toward the slanted facet. The diffracted beam exits the slanted facet at an exiting angle indicative of the location P. When an object or item is placed on upper surface, it causes changes in exit beam intensity. From exiting angles and intensity changes, a camera is able to locate touch objects or to acquire an image of the scanned item.

Multimode apparatus and method for making same

A device which has a display, a memory, a processor and a first input and a second input. The device is configured to receive input through said first corresponding to a base character component and to receive input through said second corresponding to a supplemental character component. The supplemental character component and the base character component are thereby combined to form a character input.

Method and device for character input having a base character component and a supplemental character component

A light guide has a first surface and a second surface with diffractive structures. A slanted facet is provided at one corner of the light guide. The diffractive structures have concentric fringes centered near the slanted facet. Fringes are arranged such that a light beam directed from the first surface at a location P toward the second surface is diffracted by the fringes only if the beam encounters the diffractive structures at a certain direction. The diffracted beam is guided and exits through the slanted surface at an exiting angle, which is correlated to the location P. If the light guide is illuminated in such a way that when an object is present at the first surface, it changes the light intensity of the exiting light beam. By detecting the exiting angle and the change of light intensity, the location of the object can be determined.

Light guide and optical sensing module input device and method for making same

A near-eye display related apparatus and device is disclosed. The apparatus includes a housing configured to receive an optical engine, and a light guiding plate attached to the housing and configured to receive light representing an image from the optical engine, the light guiding plate includes a first diffractive grating adapted to incouple the light into the light guiding plate, and a second diffractive grating adapted to outcouple the light from the light guiding plate such that the light is received by an eye of a user wearing the apparatus. The light guiding plate has a contact surface portion configured to optically couple the light guiding plate to a transparent plate, The contact surface portion being adapted to be in physical contact with the transparent plate.

Display apparatus and device

A portable device having an optical engine adapted to form an image from an image source in four different modes to allow a viewer to view the image. The image source is a microdisplay device, which can be reflective, transmissive or emissive. The display modes include a near-eye display (NED) mode, a near projection display (NPD) mode, a Window mode that provides a virtual image to a viewer at a distance, and a projection display mode that projects an image on a surface at a distance. The portable device has an internal light source to provide illumination to the image source for the first three modes. The portable device is further adapted to receive the light output from an external light source for use with the fourth mode.

Growing community of inventors

Espoo, Finland

Seppo Pienimaa