Stmicroelectronics (research & Development) Limited

Stmicroelectronics Gmbh

Stmicroelectronics S.a.

Hazel McInnes

Colin Campbell

Jeffrey M Raynor

Ewan Findlay

Eric Saugier

Mathieu Reigneau

Kum Weng Loo

Stuart Brodie

Mickael Miglietti

An optical navigation device for use with mobile telephones and the like is disclosed, which has a reduced height as compared with current designs. The navigation device comprises a laser such as a VCSEL laser, an exposed user surface and two other surfaces that provide for total internal reflection of the incident laser beam. The surfaces are constructed with shallower than normal angles, preserving the basic functionality of the device while reducing the height.

Lensless optical navigation device for directing radiation via reflection by three total internal surfaces

An optical navigation device may include an image sensor with an imaging surface, a laser, and an optical waveguide layer having an exposed user surface and a total internal reflection (TIR) surface on the underside of the exposed user surface. The waveguide layer, the laser, and the image sensor may be together arranged to direct radiation emitted by the laser onto the imaging surface at least partly by total internal reflection by the TIR surface.

Optical navigation device

A camera module lens cap is provided to protect a camera module in a mobile device where the camera module is exposed. The camera module lens cap includes an optically transparent member for positioning adjacent a camera lens, and a housing for carrying the optically transparent member. The housing includes an overhanging lip for engaging a base of the camera module.

Cap including a housing and optically transparent member to protect a camera module lens

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Dunfermline, United Kingdom

Hazel McInnes