Patent application number | Description | Published |
20100282951 | Metal Shield and Housing for Optical Proximity Sensor with Increased Resistance to Mechanical Deformation - An optical proximity sensor is provided that comprises an infrared light emitter operably connected to and driven by a light emitter driving circuit and a light detector operably connected to and driven by a detector sensing circuit. A metal housing or shield formed of metal and comprising first and second apertures surrounds the light emitter and the light detector such that at least a first portion of light emitted by the light detector passes through the first aperture, and at least a second portion of the first portion of light reflected from an object of interest in proximity to the sensor passes through the second aperture for detection by the light detector. The metal housing or shield further comprises first and second modules within which the light detector and light detector are disposed, respectively. The first and second modules comprise adjoining optically opaque metal inner sidewalls that provide optical isolation between the first and second modules, where the first and second inner sidewalls are separated from one another by at least one metal tab foldably disposed therebetween. The at least one metal tab is configured to transfer a vertical force applied to one end of one module to an opposite end of the other module. | 11-11-2010 |
20100327164 | Optical Proximity Sensor Package with Molded Infrared Light Rejection Barrier and Infrared Pass Components - An optical proximity sensor is provided that comprises an infrared light emitter an infrared light detector, a first molded optically transmissive infrared light pass component disposed over and covering the light emitter and a second molded optically transmissive infrared light pass component disposed over and covering the light detector. Located in-between the light emitter and the first molded optically transmissive infrared light pass component, and the light detector and the second molded optically transmissive infrared light pass component is a substantially optically non-transmissive infrared light barrier component. The infrared light barrier component substantially attenuates or blocks the transmission of undesired direct, scattered or reflected light between the light emitter and the light detector, and thereby minimizes optical crosstalk and interference between the light emitter and the light detector. | 12-30-2010 |
20110121181 | Infrared Proximity Sensor Package with Improved Crosstalk Isolation - Disclosed are various embodiments of an infrared proximity sensor package comprising an infrared transmitter die, an infrared receiver die, a housing comprising sidewalls, a first recess, a second recess, a partitioning divider disposed between the first and second recesses, and an overlying shield comprising an infrared-absorbing material. The transmitter die is positioned in the first recess, and the receiver die is positioned within the second recess. The partitioning divider comprises liquid crystal polymer (LCP) such that the partitioning divider and the infrared-absorbing material of the shield cooperate together to substantially attenuate and absorb undesired infrared light that might otherwise become internally-reflected within the housing or incident upon the receiver as a false proximity or object detection signal. | 05-26-2011 |
20110204233 | Infrared Attenuating or Blocking Layer in Optical Proximity Sensor - An optical proximity sensor is provided that comprises an infrared light emitter an infrared light detector, a first molded optically transmissive infrared light pass component disposed over and covering the light emitter and a second molded optically transmissive infrared light pass component disposed over and covering the light detector. Located in-between the light emitter and the first molded optically transmissive infrared light pass component, and the light detector and the second molded optically transmissive infrared light pass component is a gap. Layers of infrared opaque, attenuating or blocking material are disposed on at least some of the external surfaces forming the gap to substantially attenuate or block the transmission of undesired direct, scattered or reflected light between the light emitter and the light detector, and thereby minimize optical crosstalk and interference between the light emitter and the light detector. | 08-25-2011 |
20120008964 | Printable Media Sensing Device, System and Method - Printable media sensing devices, systems and methods are disclosed herein. An array of light emitters projects light through a printable media sheet for detection by a corresponding array of light sensors. A processor is operably connected to the array of light emitters and light sensors, and is configured to activate the light emitters, and receive output signals from the light sensors, and permit the accurate detection and determination of the locations of top of form (TOF) and bottom of form (BOF) for a given printable media sheet, as well as multiple widths corresponding to such sheet. According to some embodiments, the locations of labels on a sheet may also be detected with heightened accuracy, as may regions having no labels disposed thereover. | 01-12-2012 |
20120160994 | HOUSING FOR OPTICAL PROXIMITY SENSOR - An optical proximity sensor and housing for the same are disclosed. The housing is provided with at least two support structures and at least two modules. A first of the support structures transfers vertical forces applied to one end of a module to an opposite end of the opposite module. A second of the support structures inhibits a pivoting of the modules about the first support structure. | 06-28-2012 |
20130292706 | Infrared Attenuating Or Blocking Layer In Optical Proximity Sensor - An optical proximity sensor is provided that comprises an infrared light emitter an infrared light detector, a first molded optically transmissive infrared light pass component disposed over and covering the light emitter and a second molded optically transmissive infrared light pass component disposed over and covering the light detector. Located in-between the light emitter and the first molded optically transmissive infrared light pass component, and the light detector and the second molded optically transmissive infrared light pass component is a gap. Layers of infrared opaque, attenuating or blocking material are disposed on at least some of the external surfaces forming the gap to substantially attenuate or block the transmission of undesired direct, scattered or reflected light between the light emitter and the light detector, and thereby minimize optical crosstalk and interference between the light emitter and the light detector. | 11-07-2013 |
20150115138 | Sensing Device With A Shield - In one embodiment, a sensing device comprising a substrate, an emitter, a receiver and a shield is disclosed. The shield may be arranged to shield at least partially the emitter and the receiver. The shield may have a stopper and a reflector cup. The stopper may be a retention mean for engaging the substrate adjacent to the receiver such that a shield surface of the shield may be arranged distanced away from the receiver. The reflector cup may also engage the substrate adjacent to the emitter, so that the shield surface may be arranged distanced away from the emitter. In other embodiments, a sensing apparatus and a sensor having a stopper or a retention member are disclosed. | 04-30-2015 |