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公开(公告)号：US20150009494A1
公开(公告)日：2015-01-08
申请号：US14492018
申请日：2014-09-20
Applicant: PixArt Imaging Inc.
Inventor： HUNG-CHING LAI , CHUN-SHENG LIN
CPC classification number: G01J1/0295 , G01J1/0271 , G01J1/0407 , G06F3/0421 , G06F3/0428
Abstract: An optical touch device with a detecting area includes light guide components, a light source module, a light detecting component and an auxiliary light guide component. Each light guide component includes a first light emitting surface. The light guide components includes a first light guide component and a second light guide component. The auxiliary light guide component and the light detecting component are disposed between two neighboring ends of the first light guide component and the second light guide component, and the light detecting component includes a light detecting end. The auxiliary light guide component is positioned between the light detecting component and the detecting area and includes a first light incidence surface, a second light incidence surface and a second light emitting surface connected between the first light incidence surface and the second light incidence surface. The optical touch device can effectively avoid the blind zone problem.
Abstract translation: 具有检测区域的光学触摸装置包括导光部件，光源模块，光检测部件和辅助光导部件。 每个导光部件包括第一发光面。 光导部件包括第一光导部件和第二光导部件。 辅助光导部件和光检测部件设置在第一导光部件和第二导光部件的两个相邻端之间，光检测部件包括光检测端。 辅助光导部件位于光检测部件和检测区域之间，并且包括连接在第一光入射表面和第二光入射表面之间的第一光入射表面，第二光入射表面和第二发光表面。 光学触摸装置可以有效地避免盲区问题。
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公开(公告)号：US20200064947A1
公开(公告)日：2020-02-27
申请号：US16546155
申请日：2019-08-20
Applicant: PIXART IMAGING INC.
Inventor： CHAO-CHIEN HUANG , HUNG-CHING LAI , TING-YANG CHANG , YI-HSIEN KO
Abstract: A light-guide assembly and an access control system are provided. The light-guide assembly is used as an interface for touch input. The light-guide assembly includes a light-guide element and a light source disposed on a lateral surface of the light-guide element. The light source emits a first light with a first wavelength. The light-guide element has an upper surface, a lower surface, and an inner layer that is made of a light-transmissive material. The first light enters the light-guide element through the lateral surface and propagates inside the light-guide element for reacting to the touch event occurring on the upper surface. A verification data used in an access control system is formed when the touch event is sensed and identified. A light-activation element of the assembly activates the first light propagating inside the light-guide element and produces a second light that is used to provide a visual effect.
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公开(公告)号：US20140354953A1
公开(公告)日：2014-12-04
申请号：US14280534
申请日：2014-05-16
Applicant: Pixart Imaging Inc.
Inventor： HUI-HSUAN CHEN , WEN-YEN SU , HUNG-CHING LAI
Abstract: An optical assembly includes a light source and a beam splitter. The light source is used for emitting an incident beam. The beam splitter is used for dividing the incident beam into a plurality of outgoing beams. The incident beam and the outgoing beam are both invisible light. The outgoing beams enter an eyeball and form a plurality of glints on the eyeball. The glints are formed on the region outside the pupil.
Abstract translation: 光学组件包括光源和分束器。 光源用于发射入射光束。 分束器用于将入射光束分成多个输出光束。 入射光束和出射光束都是不可见光。 出射光束进入眼球，并在眼球上形成多个闪光。 闪光在瞳孔外面形成。
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公开(公告)号：US20150212255A1
公开(公告)日：2015-07-30
申请号：US14540187
申请日：2014-11-13
Applicant: PIXART IMAGING INC.
Inventor： HUNG-CHING LAI , HUNG-YU LAI , YU-HSIANG HUANG
CPC classification number: G02B6/0055 , G02B6/0045 , G02B6/0065 , G02B6/0078 , H01L33/54 , H01L33/58 , H01L33/60 , H01L33/62
Abstract: There is provided a light source module including an LED die and a light guide member. The light guide member is formed by injection molding to encapsulate the LED die. The light guide member is coated with a reflection film on a part of surface thereof and has at least one tilted surface opposite to the LED die.
Abstract translation: 提供了一种包括LED管芯和导光构件的光源模块。 导光构件通过注塑成型以封装LED管芯。 导光构件在其表面的一部分上涂覆有反射膜，并且具有与LED管芯相对的至少一个倾斜表面。
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