公开(公告)号：US20190196205A1

公开(公告)日：2019-06-27

申请号：US16231326

申请日：2018-12-21

申请人： NORTH INC.

发明人： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Martin Joseph Kiik ,  Syed Moez Haque ,  Douglas Raymond Dykaar

IPC分类号： G02B27/01 ,  H01S5/40 ,  H01S5/022 ,  G02B6/12 ,  G02B6/124

CPC分类号： G02B27/0176 ,  G02B6/12004 ,  G02B6/124 ,  G02B27/0172 ,  G02B2006/12107 ,  G02B2006/12164 ,  G02B2027/0116 ,  G02B2027/015 ,  G02B2027/0178 ,  H01S5/02272 ,  H01S5/02288 ,  H01S5/02292 ,  H01S5/4093

摘要： Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. A grating waveguide combiner comprising a plurality of waveguides having grating couplers thereon may be used to combine beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. Such optical engines may have advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

公开(公告)号：US20190196200A1

公开(公告)日：2019-06-27

申请号：US16231019

申请日：2018-12-21

申请人： NORTH INC.

发明人： Jörg Pierer ,  Rony Jose James ,  Stefan Mohrdiek ,  Martin Joseph Kiik ,  Syed Moez Haque ,  Douglas R. Dykaar

IPC分类号： G02B27/01 ,  H01S5/40 ,  H01S5/022 ,  G02B6/12 ,  G02B27/42 ,  H01S5/42 ,  G02B6/124

CPC分类号： G02B27/0172 ,  G02B6/12004 ,  G02B6/124 ,  G02B27/4205 ,  G02B2006/12069 ,  G02B2006/12107 ,  G02B2006/12147 ,  G02B2006/12164 ,  G02B2027/011 ,  G02B2027/0116 ,  G02B2027/0178 ,  H01S5/02208 ,  H01S5/02248 ,  H01S5/02272 ,  H01S5/02288 ,  H01S5/02296 ,  H01S5/4012 ,  H01S5/4031 ,  H01S5/4093 ,  H01S5/423

摘要： Systems, devices, and methods of manufacturing optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. Photonic integrated circuits having grating or edge couplers thereon may be used to wavelength multiplex beams of light emitted by the plurality of laser diodes into a coaxially superimposed aggregate beam. A waveguide medium having one or more directly written waveguides may couple light from laser diodes to a photonic integrated circuit, and may optionally hermetically or partially hermetically seal the laser diodes, eliminating the need for a separate seal. Such optical engines may have advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

公开(公告)号：US20190140420A1

公开(公告)日：2019-05-09

申请号：US16180162

申请日：2018-11-05

申请人： DERMAL PHOTONICS CORPORATION

发明人： Zilong Huang

IPC分类号： H01S5/022 ,  H01S5/062

CPC分类号： H01S5/02252 ,  H01S5/02212 ,  H01S5/02268 ,  H01S5/02288 ,  H01S5/02296 ,  H01S5/02469 ,  H01S5/06243

摘要： A self-aligning laser system that is capable of accurate placement for xyz coordinate and rotational alignment and registration of optical lens or lenses in relation to a laser diode without the need for active alignment. This approach reduces complexity, assembly time and costs without sacrifice to precision of alignment and optical performance.

公开(公告)号：US20190011258A1

公开(公告)日：2019-01-10

申请号：US16029349

申请日：2018-07-06

申请人： LEICA GEOSYSTEMS AG

发明人： Kai FEI ,  Guanghua MA ,  Thomas BÖSCH

IPC分类号： G01C15/00 ,  G02B27/30 ,  H01S5/022

CPC分类号： G01C15/004 ,  G02B27/30 ,  H01S5/02252 ,  H01S5/02288 ,  H01S5/02292

摘要： A laser level comprising a first laser module and a second laser module, each comprising a laser diode and an optical unit, a holder arranging the first laser module and the second laser module in a fixed relative position, and a housing, in which the holder is suspended with a gimbal or ball joint. Each optical unit comprises a collimating lens arranged along the beam path following the laser diode, and configured for collimating a beam emitted by the laser diode; a pair of partially transmitting mirrors, each arranged along the beam path following the collimating lens, and configured for laterally reflecting less than half of the collimated beam in terms of the beam cross-section, and in terms of the beam intensity; and a cylindrical lens arranged along the beam path following the pair of partially transmitting mirrors, and configured for shaping the collimated beam into a fan beam.

公开(公告)号：US20180331495A1

公开(公告)日：2018-11-15

申请号：US15776549

申请日：2016-02-22

申请人： Mitsubishi Electric Corporation

发明人： Seiji NAKANO ,  Toshihide SEKI

IPC分类号： H01S5/022

CPC分类号： H01S5/02288 ,  G03B21/2033 ,  H01S5/02 ,  H01S5/02276 ,  H01S5/02292

摘要： A technology disclosed in the specification of the subject application relates to a laser light source device capable of suppressing loss of optical output power from a semiconductor laser device, and to a method of manufacturing of a laser light source device while the degree of freedom in arrangement of the semiconductor laser device is secured. A laser light source device according to the subject technology includes a semiconductor laser device, and an optical element provided on an optical axis of an emission light emitted from the semiconductor laser device. The optical element separates a portion of a luminous flux of an emission light that is emitted from the semiconductor laser device and that is not separated in a fast axis direction from another portion so as to be separated in the fast axis direction.

公开(公告)号：US20180294620A1

公开(公告)日：2018-10-11

申请号：US15944049

申请日：2018-04-03

申请人： Oclaro Japan, Inc.

发明人： Takanori SUZUKI ,  Shigehisa TANAKA

IPC分类号： H01S5/026 ,  G02B6/42 ,  H01S5/18 ,  H01S5/12 ,  H01S5/022

CPC分类号： H01S5/0267 ,  G02B6/4206 ,  G02B6/4214 ,  G02B2006/12107 ,  G02B2006/12147 ,  H01S5/02216 ,  H01S5/02276 ,  H01S5/0228 ,  H01S5/02288 ,  H01S5/0261 ,  H01S5/0623 ,  H01S5/1085 ,  H01S5/12 ,  H01S5/18

摘要： An optical module includes a semiconductor laser with an active layer disproportionately positioned closer to the first surface. The semiconductor laser includes a reflector for reflecting the light outgoing from the active layer in a direction along the first surface toward another direction. The active layer and the reflector are monolithically integrated in the semiconductor laser. The optical module includes a carrier formed from a light transmissive material and having a third surface and a fourth surface opposite to each other. The semiconductor laser is mounted on the carrier so as for the light to enter the third surface. The carrier has a lens integrally on the fourth surface. The optical module includes a substrate having an optical waveguide and an optical coupler for guiding the light to the optical waveguide. The optical waveguide and the optical coupler are integrated in the substrate.

公开(公告)号：US20180254610A1

公开(公告)日：2018-09-06

申请号：US14923861

申请日：2015-10-27

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Takahide OCHIAI ,  Tadataka EDAMURA ,  Naota AKIKUSA

IPC分类号： H01S5/34 ,  H01S5/024 ,  H01S5/022

CPC分类号： H01S5/3402 ,  H01S5/02208 ,  H01S5/02236 ,  H01S5/02252 ,  H01S5/0228 ,  H01S5/02288 ,  H01S5/024 ,  H01S5/02415 ,  H01S5/12 ,  H01S5/3419

摘要： A quantum cascade laser device has a light-absorbing cover member located between one emission end face of a quantum cascade laser element and an emission window of a housing. The emission end face and an opposing surface of a submount with respect to the cover member are flush with each other. The cover member has an opening at a position opposing the emission end face. The opening has a tapered first opening part increasing its diameter from the emission end face side to the emission window side and a second opening part formed with a fixed diameter not smaller than the smallest diameter of the first opening part.

公开(公告)号：US10061118B2

公开(公告)日：2018-08-28

申请号：US15417750

申请日：2017-01-27

申请人： Hand Held Products, Inc.

发明人： QianAn Zhang

IPC分类号： G06K7/10 ,  G02B26/10 ,  G02B7/02 ,  G02B27/09 ,  H01S5/00 ,  H01S5/042

CPC分类号： G02B26/10 ,  G02B3/06 ,  G02B7/02 ,  G02B13/08 ,  G02B27/0911 ,  G02B27/0966 ,  G06K7/10831 ,  H01S5/0071 ,  H01S5/02212 ,  H01S5/02288 ,  H01S5/042

摘要： An elongated laser beam optical assembly. The assembly has a laser light source that produces a laser beam. A cylindrical anamorphic lens has a planar surface at a first end and an anamorphic surface at a second end thereof, the first end receiving the laser beam from the laser light source and producing an output laser beam from the second end thereof. An aperture passes the output laser beam from the second end of the anamorphic lens to produce an elongated laser beam.

公开(公告)号：US20180175590A1

公开(公告)日：2018-06-21

申请号：US15579780

申请日：2015-12-25

申请人： Mitsubishi Electric Corporation

发明人： Tatsuya YAMAMOTO ,  Daiji MORITA ,  Masato KAWASAKI ,  Kazuki KUBA ,  Junichi NISHIMAE ,  Tetsuo KOJIMA

IPC分类号： H01S5/14 ,  H01S5/00 ,  H01S5/022 ,  H01S5/40 ,  H01S5/22

CPC分类号： H01S5/146 ,  H01S3/08027 ,  H01S3/0805 ,  H01S5/0071 ,  H01S5/0078 ,  H01S5/02288 ,  H01S5/141 ,  H01S5/143 ,  H01S5/22 ,  H01S5/4031 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/4087

摘要： A semiconductor laser device includes: a semiconductor laser bar to output a plurality of beams with different wavelengths from a continuous light-emitting region; a light-condensing optical system to condense the beams; a wavelength-dispersive optical element having a wavelength dispersing function; an optical filter in which a wavelength of a beam that passes therethrough differs periodically; an aperture located on an optical path of the beams superimposed on an identical axis; and a partially reflecting mirror. A totally reflecting mirror is formed on a back side of the semiconductor laser bar, and wavelengths of a plurality of beams with different wavelengths reflected by the totally reflecting mirror and output from the semiconductor laser bar are respectively identical to wavelengths of beams that pass through the optical filter.

公开(公告)号：US10003171B1

公开(公告)日：2018-06-19

申请号：US15711350

申请日：2017-09-21

申请人： Excelitas Technologies Corp.

发明人： Scott Carpenter ,  Wai Choi

IPC分类号： H01S3/04 ,  H01S5/024 ,  H01S5/042 ,  F21V29/70

CPC分类号： H01S5/02469 ,  F21V29/70 ,  H01S3/0405 ,  H01S5/02 ,  H01S5/02276 ,  H01S5/02288 ,  H01S5/0425

摘要： A sealable laser diode heat sink module for a laser diode includes an anode assembly and a cathode assembly having a cathode base and a cathode connector plate. The anode assembly includes an anode base configured to house the laser diode and the cathode base within a sealable cavity recessed into the anode base. The anode base has a cathode base opening configured to receive the cathode connector plate. An anode connector plate extends from the anode base. An anode current path passes through the laser diode and the anode connector plate via direct connections through the anode base. A cathode current path passes through the cathode connector plate passes via direct connections through the cathode base. The anode base is configured to dissipate heat from the laser diode.