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Petrus Theodorus Jutte: Optical scanning device. Koninklijke Philips Electronics, Michael E Belk, December 7, 2004: US06828537 (4 worldwide citation)

A radiation detector array for radial tracking error detection and focus error detection, including a first plurality of spot detectors (


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Petrus Theodorus Jutte: Optical scanning device. Koninklijke Philips Electronics, Michael E Belk, April 5, 2005: US06876619 (3 worldwide citation)

An optical scanning device is adapted for scanning record carriers (13, 27) having transparent layers (14, 28) of different thicknesses through which a converging beam (12, 26) must pass. An objective lens (11) of the device is designed to form the converging beam (14) for scanning through a first t ...


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Petrus Theodorus Jutte, Jacobus Maria Antonius Van Den Eerenbeemd: Optical scanning device with two-wavelength laser for HD and LD scanning. Koninklijke Philips Electronics, Michael E Belk, March 7, 2006: US07009928 (2 worldwide citation)

In an optical scanning device for scanning both a high-density, HD, record carrier (38) and a low-density, LD, record carrier (18), a two-wavelength diode laser (50) is used for generating the HD scanning beam and the LD scanning beam. By arranging a composite diffraction element (60) close to the d ...


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Petrus Theodorus Jutte: Optical scanning device with coma correction for improved focus tracking signal. Koninklijke Philips Electronics, Michael E Belk, May 8, 2007: US07215605 (2 worldwide citation)

An optical scanning device (1) includes: a radiation source (4) for supplying a radiation beam (8); a lens system (5) for transforming the radiation beam to a scanning spot (14); and a detection system (6) that includes a quadrant detector (20), an astigmatism generating element (18) for generating ...


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Petrus Theodorus Jutte: Optical scanning device. Koninklijke Philips Electronics, Michael E Belk, January 27, 2004: US06683838 (2 worldwide citation)

In an optical scanning device for scanning both a high-density, HD, record carrier (


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Mark Thomas Johnson, Calina Ciuhu, Rieko Verhagen, Bastiaan Wilhelmus Maria Moeskops, Kiran Kumar Thumma, Thomas Adriaan Cohen Stuart, Petrus Cornelis Paulus Bouten, Roelof Koole, Emile Johannes Karel Verstegen, Petrus Theodorus Jutte: LIOB based hair cutting device. KONINKLIJKE PHILIPS, April 18, 2017: US09622818 (1 worldwide citation)

A laser-based hair cutting device (10) comprises a laser source (18), an optically transparent exit window (15) and optical elements (11, 12, 13, 14). The laser source (18) provides an incident light beam (21) for cutting a hair (22) above and near a skin surface by laser-induced optical breakdown ( ...


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Kouei Hatade, Petrus Theodorus Jutte, Jacobus Maria Antonius Van Den Eerenbeemd: Beam-shaping optical element and method and program for designing the same. Koninklijke Philips Electronics, Michael E Belk, November 6, 2007: US07292397 (1 worldwide citation)

A beam-shaping optical element employing an aspherical profileis presented to minimize aberration. A beam-shaping optical element according to the present invention includes an entrance surface and the exit surface, both having a non-circular cross-section in any plane comprising the optical axis. A ...


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Ronald Reindert Drenten, Peter Coops, Petrus Theodorus Jutte: Optical device for scanning an optical record carrier. Koninklijke Philips Electronics, May 15, 2007: US07218449 (1 worldwide citation)

An optical device for scanning an optical record carrier (20) has a radiation source (25) that can emit two radiation beams of different wavelength along different optical paths (28, 29). The emitted radiation is focused on the record carrier and reflected back to a detection system (40). A beam com ...


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Petrus Theodorus Jutte, Bastiaan Wilhelmus Maria Moeskops, Mark Thomas Johnson, James Howard Coombs: Cutting head for a device for cutting hair. KONINKLIJKE PHILIPS, October 4, 2016: US09457431

The present application relates to a cutting head (1) for a device for cutting hair. The cutting head has an optical system (3) which directs a laser beam (7) across a cutting zone (8) in the cutting head. The laser beam has a fast and a slow axis. The optical system has a focus lens (6) configured ...