Beam steering device

US8570645B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Fetze Pijlman · Eindhoven, NL
• Marcellinus Petrus Carolus Michael Krijn · Eindhoven, NL
• Michel Cornelis Josephus Marie Vissenberg · Eindhoven, NL
• Lieven Raf Roger Desmet · Eindhoven, NL
• Baptiste Fleury Louis Delplanque · Eindhoven, NL
• Tim Dekker · Eindhoven, NL

Key dates

• Filing date: Sep 30, 2010
• Grant date: Oct 29, 2013
• Expiry date: Sep 30, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2203/24
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A beam steering device (300) for deflecting a beam of light is provided. The beam steering device comprises a first deflecting member (310), a rotating member (320), and a second deflecting member (330). For an incoming beam of light having components (303, 302) with their polarization parallel (303′) and perpendicular (302′), respectively, to an optic axis (314, 334) of the beam steering device, the parallel component (303) is deflected by a first angle (304) when passing the first deflecting member. When passing the rotating member, the polarization (303′, 302′) of the beam of light is rotated by 90 degrees (303″, 302″). When passing the second deflecting member, the perpendicular component (302) is deflected by a second angle (305).