Patents by Inventor David J. Cammenga
David J. Cammenga has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200117001Abstract: A heads up display system of a vehicle includes a combiner screen having a first substantially transparent substrate defining a first surface and a second surface, a second substantially transparent substrate defining a third surface and a fourth surface. A primary seal is disposed between the first and second substrates. The seal and the first and second substrates define a cavity therebetween. An electro-optic material is positioned within the cavity and a transflective layer having a multilayer polymeric film positioned on one of the first and second surfaces, and a projector for projecting light having a first polarization toward the first surface of the first substrate.Type: ApplicationFiled: December 12, 2019Publication date: April 16, 2020Applicant: Gentex CorporationInventors: David J. Cammenga, William L. Tonar, David L. Poll
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Publication number: 20200110322Abstract: A switchable device is provided. The switchable device includes an electro-optic element switchable between a darkened state and a transmissive state in addition to a sensor having a field of view at least partially defined by a perimeter portion of the electro-optic element. The darkened state is configured to mask the sensor and visibly match the perimeter portion.Type: ApplicationFiled: October 8, 2019Publication date: April 9, 2020Applicant: Gentex CorporationInventors: Adam R. Heintzelman, George A. Neuman, David J. Cammenga, Mario F. Saenger Nayver, Jian Gao, Xiaoxu Niu
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Publication number: 20200110327Abstract: A concealing device for an imager of a vehicle includes a photochromic lens cover with an external surface that is co-extensive with an adjacent portion of the vehicle and disposed proximate a lens of the imager. The photochromic lens cover is operable between a first condition wherein the photochromic lens cover is exposed to ultraviolet light and darkens to a transmissivity of less than 15% and a second condition wherein the photochromic lens cover includes a transmissivity of greater than 50%.Type: ApplicationFiled: October 9, 2019Publication date: April 9, 2020Inventors: Robert R. Turnbull, Xiaoxu Niu, David J. Cammenga
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Patent number: 10585323Abstract: A product includes a substrate that is at least partially transparent to visible light. The substrate includes a first surface, an opposing second surface, and a conductive layer disposed on the opposing second surface. The conductive layer has a first ablated area and a second ablated area entirely disposed within and overlapping a portion of the first ablated area. The second ablated area includes a selectively visible indicia.Type: GrantFiled: August 10, 2017Date of Patent: March 10, 2020Assignee: GENTEX CORPORATIONInventors: Kurtis L. Geerlings, Mark R. Roth, David J. Cammenga, Henry A. Luten
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Patent number: 10551620Abstract: A heads up display system of a vehicle includes a combiner screen having a first substantially transparent substrate defining a first surface and a second surface, a second substantially transparent substrate defining a third surface and a fourth surface. A primary seal is disposed between the first and second substrates. The seal and the first and second substrates define a cavity therebetween. An electro-optic material is positioned within the cavity and a transflective layer having a multilayer polymeric film positioned on one of the first and second surfaces, and a projector for projecting light having a first polarization toward the first surface of the first substrate.Type: GrantFiled: January 9, 2018Date of Patent: February 4, 2020Assignee: GENTEX CORPORATIONInventors: David J. Cammenga, William L. Tonar, David L. Poll
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Publication number: 20200019034Abstract: A window control system comprises a plurality of electro-optic devices configured to control a transmittance of light through each of the plurality of zones, and at least one sensor configured to identify an intensity of light transmitted through the at least one window. A controller is in communication with the electro-optic devices and the at least one sensor. The controller is configured to independently control the transmittance of the light through each of the zones based on at least on at least one of a direction of the light and an intensity of the light detected in a passenger compartment of a vehicle.Type: ApplicationFiled: July 9, 2019Publication date: January 16, 2020Applicant: Gentex CorporationInventors: Autumn N. Lagowski, George A. Neuman, Michael T. Stephenson, Luke A. Bomers, Barry K. Nelson, Henry A. Luten, JR., Dennis D. Festerling, JR., David J. Cammenga, John S. Anderson, Michael J. VanAst
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Patent number: 10514590Abstract: An imager module for a vehicle includes an imager having an imager lens. The imager is configured to collect image data from at least one of inside and outside the vehicle. A cover is disposed proximate the imager lens and configured to allow the imager to capture image data through the cover. The cover is operable between a first condition, wherein the imager is generally visible through the cover, and a second condition, wherein the imager is generally concealed from view by the cover.Type: GrantFiled: March 28, 2018Date of Patent: December 24, 2019Assignee: GENTEX CORPORATIONInventors: David J. Cammenga, Ethan J. Lee
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Publication number: 20190381940Abstract: An electro-optic element of a display of a vehicle includes a first substantially transparent substrate defining a first surface and a second surface. A first edge extends around the first substrate. A second substantially transparent substrate defines a third surface and a fourth surface. A second edge extends around the second substrate. A primary seal is disposed between the first and second substrates. The seal and the first and second substrates define a cavity therebetween. First and second electrical buses are positioned on the first edge and the second edge, respectively. A dual coated film is positioned between the first and second electrical buses. An electro-optic material is positioned within the cavity.Type: ApplicationFiled: August 30, 2019Publication date: December 19, 2019Applicant: Gentex CorporationInventors: Adam R. Heintzelman, Juan C. Lara, Christopher M. Derry, David J Cammenga
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Patent number: 10509226Abstract: A heads up display system of a vehicle includes a combiner screen having a first substantially transparent substrate defining a first surface and a second surface, a second substantially transparent substrate defining a third surface and a fourth surface. A primary seal is disposed between the first and second substrates. The seal and the first and second substrates define a cavity therebetween. An electro-optic material is positioned within the cavity and a transflective layer having a multilayer polymeric film positioned on one of the first and second surfaces, and a projector for projecting light having a first polarization toward the first surface of the first substrate.Type: GrantFiled: January 9, 2018Date of Patent: December 17, 2019Assignee: GENTEX CORPORATIONInventors: David J. Cammenga, William L. Tonar, David L. Poll
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Publication number: 20190346741Abstract: An optical module for a vehicle includes an imager configured to collect image data from at least one of inside and outside the vehicle. A cover is disposed proximate a lens of the imager. The cover includes an electro-optic cell aligned with the lens and configured to allow the imager to capture the image data through the cover. The cover is colored to match one of an interior and exterior body panel of the vehicle. The electro-optic cell is operable between a first condition wherein the electro-optic cell has a visible light transmission of greater than 50% and a second condition wherein the visible light transmission of the electro-optic cell is less than 15%.Type: ApplicationFiled: July 23, 2019Publication date: November 14, 2019Inventors: David J. Cammenga, Ethan J. Lee
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Publication number: 20190344389Abstract: A laser system includes a laser configured to provide a laser beam and a laser delivery assembly including a waveplate. The laser delivery assembly is positioned to receive the laser beam from the laser and direct the laser beam toward a substrate to facilitate forming a separation line within the substrate along a process path. An instantaneous direction of the process path relative to a direction of a crystalline plane of the substrate defines a process path angle. The laser delivery assembly is configured to selectively rotate at least one of the waveplate or the substrate to control a polarization angle of the laser beam based on (i) an instantaneous direction of polarization of the laser beam and (ii) the process path angle.Type: ApplicationFiled: June 28, 2019Publication date: November 14, 2019Inventors: KURTIS L. GEERLINGS, Donald L. BAREMAN, David J. CAMMENGA, Niels A. OLESEN
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Publication number: 20190346742Abstract: An imager module for a vehicle includes an imager having an imager lens. The imager is configured to collect image data from at least one of inside and outside the vehicle. A cover is disposed proximate the imager lens and configured to allow the imager to capture image data through the cover. The cover is operable between a first condition, wherein the imager is generally visible through the cover, and a second condition, wherein the imager is generally concealed from view by the cover.Type: ApplicationFiled: May 9, 2019Publication date: November 14, 2019Applicant: Gentex CorporationInventors: David J. Cammenga, Xiaoxu Niu, Kurtis L. Geerlings, Jason D. Hallack, Robert R. Turnbull, Carl N. Wassink
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Patent number: 10471546Abstract: A laser system is configured to produce a distribution of self-focus damage volumes through the thickness of a substrate. A laser of the laser system produces a laser beam, and an optical assembly receives the laser beam and emits a conditioned laser beam having a geometric focal region. Placing the substrate in the path of the conditioned beam shifts the focal region to an effective focal region. The optical assembly and/or optical elements thereof can be configured such that the distribution of self-focus damage volumes is uniform over the thickness of the substrate by accounting for the non-linear effects of the substrate on the light that propagates through the substrate.Type: GrantFiled: December 22, 2014Date of Patent: November 12, 2019Assignee: GENTEX CORPORATIONInventors: Kurtis L. Geerlings, Donald L. Bareman, Henry A. Luten, Niels A. Olesen, David J. Cammenga
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Publication number: 20190339580Abstract: A transparent photovoltaic (TPV) integrated directly into the structure of an electrochromic (EC) device is beneficial in that it can eliminate at least one substrate and provide more uniform coloring. Integration of a transparent photovoltaic with an electrochromic device may also reduce or eliminate the need for an electrical bus on a substrate. In some embodiments, positioning the TPV internally with the EC cell may eliminate the need for additional substrate layers or a conductive layer on one side of the TPV cell. Integrating a PV cell into the EC device can additionally reduce the need for external wiring and an external power supply. Alternatively, the TPV can assist in charging a battery where the battery can be used to power the EC device when there is no sunlight available.Type: ApplicationFiled: July 11, 2019Publication date: November 7, 2019Applicant: Gentex CorporationInventors: Sue F. Franz, William L. Tonar, David J. Cammenga, George A. Neuman, Kurtis L. Geerlings, Donald L. Bareman, Kevin L. Ash
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Publication number: 20190323979Abstract: A detector is provided including a plurality of nanofiber chemical sensors, each having an electrical characteristic; and a processing and alarm circuit in electrical communication with the plurality of nanofiber chemical sensors; wherein the electrical characteristics of at least one of the plurality of nanofiber chemical sensors changes in the presence of a first airborne material; wherein the electrical characteristics of at least one of the plurality of nanofiber chemical sensors changes in the presence of a second airborne material; and wherein the changes in the electrical characteristics of at least one of the plurality of nanofiber chemical sensors in the presence of the first airborne material are different from the changes in the electrical characteristics of at least one of the plurality of nanofiber chemical sensors in the presence of the second airborne material.Type: ApplicationFiled: April 18, 2019Publication date: October 24, 2019Applicant: GENTEX CORPORATIONInventors: David J. Cammenga, Kurtis L. Geerlings, Joel C. Nemes, William L. Tonar, David E. Christian, Darin D. Tuttle, Xiaoxu Niu
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Patent number: 10434948Abstract: A vehicle display mirror system is disclosed. The system comprises a display device and a reflecting polarizer. The display device is operable to display image data on a display surface as display light. The reflecting polarizer comprises a light receiving surface proximate the display surface and configured to output the display light in a first polarization from an emitting surface. The system further comprises a liquid crystal element, a polarizing element, and a controller. The controller is in communication with the liquid crystal element and configured to selectively align a liquid crystal material to pass the display light through the liquid crystal element and deactivate the liquid crystal element to adjust a received light from the first polarization to a second polarization and reflect the second polarization from the emitting surface.Type: GrantFiled: June 2, 2017Date of Patent: October 8, 2019Assignee: GENTEX CORPORATIONInventors: William L. Tonar, David J. Cammenga, Gary J. Dozeman, Danny L. Minikey, Jr.
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Patent number: 10427606Abstract: Anisotropic film laminates for use in image-preserving reflectors such as rearview automotive mirror assemblies, and related methods of fabrication. A film may comprise an anisotropic layer such as a light-polarizing layer and other functional layers. The film having controlled water content is heated under omnidirectional pressure and vacuum to a temperature substantially equal to or above a lower limit of a glass-transition temperature range of the film so as to be laminated to a substrate. The laminate is configured as part of a mirror structure so as to increase contrast of light produced by a light source positioned behind the mirror structure and transmitted through the mirror structure towards a viewer. The mirror structure is devoid of any extended distortion and is characterized by SW and LW values less than 3, more preferably less than 2, and most preferably less than 1.Type: GrantFiled: December 28, 2015Date of Patent: October 1, 2019Assignee: GENTEX CORPORATIONInventors: John S. Anderson, William L. Tonar, Henry A. Luten, George A. Neuman, Gary J. Dozeman, Tammy G. Morgan, David J. Cammenga
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Patent number: 10423044Abstract: A transparent photovoltaic (TPV) integrated directly into the structure of an electrochromic (EC) device is beneficial in that it can eliminate at least one substrate and provide more uniform coloring. Integration of a transparent photovoltaic with an electrochromic device may also reduce or eliminate the need for an electrical bus on a substrate. In some embodiments, positioning the TPV internally with the EC cell may eliminate the need for additional substrate layers or a conductive layer on one side of the TPV cell. Integrating a PV cell into the EC device can additionally reduce the need for external wiring and an external power supply. Alternatively, the TPV can assist in charging a battery where the battery can be used to power the EC device when there is no sunlight available.Type: GrantFiled: February 8, 2018Date of Patent: September 24, 2019Assignee: GENTEX CORPORATIONInventors: Sue F. Franz, William L. Tonar, David J. Cammenga, George A. Neuman, Kurtis L. Geerlings, Donald L. Bareman, Kevin L. Ash
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Publication number: 20190270411Abstract: A display mirror assembly for a vehicle may comprise a display module comprising a display element; a partially reflective, partially transmissive element disposed generally parallel to the display element; optical bonding adhesive having a refractive index disposed between the display element and the partially reflective, partially transmissive element; and a plurality of refracting beads having a refractive index and incorporated in or on the optical bonding adhesive; wherein the display is optically bonded to the partially reflective, partially transmissive element with the optical bonding adhesive.Type: ApplicationFiled: March 5, 2018Publication date: September 5, 2019Applicant: GENTEX CORPORATIONInventors: Gary J. Dozeman, David J. Cammenga, William L. Tonar
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Patent number: 10399498Abstract: An electro-optic element of a display of a vehicle includes a first substantially transparent substrate defining a first surface and a second surface. A first edge extends around the first substrate. A second substantially transparent substrate defines a third surface and a fourth surface. A second edge extends around the second substrate. A primary seal is disposed between the first and second substrates. The seal and the first and second substrates define a cavity therebetween. At least one of the first and second edges is stepped proximate the seal to define a channel. An electro-optic material is positioned within the cavity.Type: GrantFiled: December 18, 2017Date of Patent: September 3, 2019Assignee: GENTEX CORPORATIONInventors: Adam R. Heintzelman, Juan C. Lara, Christopher M. Derry, David J Cammenga