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公开(公告)号：US20210372589A1
公开(公告)日：2021-12-02
申请号：US17399061
申请日：2021-08-11
Inventor： Wei-Wen Shih , Shih-Chang Wang
Abstract: A light distribution module configured to control a light distribution of a light source is provided. The light distribution module includes a lens and an optical cover. The lens has a first light-incident surface, a first light-emitting surface opposite to the first light-incident surface, and an accommodating recess located at a side of the first light-incident surface, wherein the accommodating recess is configured to contain the light source. The optical cover covers the lens and has a second light-incident surface and a second light-emitting surface opposite to the second light-incident surface, wherein the second light-incident surface is located between the first light-emitting surface and the second light-emitting surface, and the second light-incident surface has a plurality of sub-curved surfaces. Boundaries between adjacent sub-curved surfaces are bent-shaped with respect to the adjacent sub-curved surfaces.
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公开(公告)号：US10314136B2
公开(公告)日：2019-06-04
申请号：US15243064
申请日：2016-08-22
Inventor： Shih-Chang Wang , Ching-Tsung Ni , Chien-Lung Wang
Abstract: Disclosed is a drive integrated circuit for controlling a traffic light. The drive IC comprises an input end and an output end, an input low-voltage control circuit, a gain control circuit, a driving circuit, an impedance loop and a phase detection circuit. The input low-voltage control circuit connects to the input end of the drive IC, and receives a first external signal. The gain control circuit connects to the input low-voltage control circuit. The driving circuit connects to the gain control circuit. The impedance loop connects to the input end to detect whether the traffic light is damaged. The phase detection circuit connects to the input end to detect a phase difference of the driving signal. By integrating circuits having different detection and control functions in one single chip, the cost of the drive IC decreases and the traffic light can have a less thick structure.
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公开(公告)号：US10208907B2
公开(公告)日：2019-02-19
申请号：US15456737
申请日：2017-03-13
Inventor： Shih-Chang Wang , Wei-Wen Shih , Pin-Hao Hsu
IPC: F21S8/08 , F21V17/06 , F21V13/04 , F21V7/00 , F21Y115/10 , F21V3/04 , F21V5/04 , F21V14/04 , F21W131/103
Abstract: A lighting device including an upper casing, a light emitting diode (LED) light source, a first reflective plate and a packaging lens is disclosed. The upper casing includes a supporting member. The LED light source is disposed on the supporting member. The first reflective plate is disposed on the supporting member and is separated from the LED light source by a first distance. The first reflective plate and a normal line of a supporting surface of the supporting member form a first angle which is greater than 0° and smaller than 40°. The packaging lens is disposed on the supporting member and covers the LED light source and the first reflective plate.
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公开(公告)号：US20180187845A1
公开(公告)日：2018-07-05
申请号：US15456737
申请日：2017-03-13
Inventor： Shih-Chang Wang , Wei-Wen Shih , Pin-Hao Hsu
CPC classification number: F21S8/085 , F21V3/049 , F21V5/045 , F21V7/0025 , F21V13/04 , F21V14/04 , F21W2131/103 , F21Y2115/10
Abstract: A lighting device including an upper casing, a light emitting diode (LED) light source, a first reflective plate and a packaging lens is disclosed. The upper casing includes a supporting member. The LED light source is disposed on the supporting member. The first reflective plate is disposed on the supporting member and is separated from the LED light source by a first distance. The first reflective plate and a normal line of a supporting surface of the supporting member form a first angle which is greater than 0° and smaller than 40°. The packaging lens is disposed on the supporting member and covers the LED light source and the first reflective plate.
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公开(公告)号：US10008137B2
公开(公告)日：2018-06-26
申请号：US14862896
申请日：2015-09-23
Applicant: LITE-ON TECHNOLOGY CORPORATION
Inventor： Yi-Kai Cheng , Kuo-Hui Chang , Ching-Tsung Ni , Shih-Chang Wang
IPC: G09F13/04
CPC classification number: G09F13/0413 , G09F13/04 , G09F13/0409
Abstract: The illuminated sign includes a frame defining a space, a light emitting module received in the space and having a plurality of light emitting members disposed on a circuit substrate, an optical path conversion component provided on the frame to correspond to the light emitting members, and a light uniformizing component positioned a distance above the optical path conversion component. The space is compartmented to form a predetermined pattern, projecting a desired signal when the light emitting members in different compartments of the space are selectively illuminated.
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Patent Agency Ranking
公开(公告)号：US09982856B2
公开(公告)日：2018-05-29
申请号：US15133421
申请日：2016-04-20
Inventor： Shih-Chang Wang , Pin-Hao Hsu , Po-Chang Li
CPC classification number: F21S8/086 , F21V21/112 , F21V21/116 , F21V21/14 , F21V21/30 , F21W2131/103
Abstract: A lighting assembly is assembled on a light pole. The lighting assembly comprises a lighting portion, an assembling portion, a first fixing member and a second fixing member. The lighting portion has a light-output surface. The assembling portion is connected to the lighting portion, and the assembling portion has a holder. The holder is configured to hold a free end of the light pole, and inner diameters of the holder gradually decrease from an outer end surface to the lighting portion, such that the free end abuts an inner wall of the holder. The first fixing member passes through a through-hole of a first side of the holder; the second fixing member passes through a through-hole of a second side of the holder, wherein the second side is opposite to the first side.
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公开(公告)号：US20190145603A1
公开(公告)日：2019-05-16
申请号：US16190178
申请日：2018-11-14
Inventor： Wei-Wen Shih , Shih-Chang Wang
Abstract: A light distribution module configured to control a light distribution of a light source is provided. The light distribution module includes a lens and an optical cover. The lens has a first light-incident surface, a first light-emitting surface opposite to the first light-incident surface, and an accommodating recess located at a side of the first light-incident surface, wherein the accommodating recess is configured to contain the light source. The optical cover covers the lens and has a second light-incident surface and a second light-emitting surface opposite to the second light-incident surface, wherein the second light-incident surface is located between the first light-emitting surface and the second light-emitting surface, and the second light-incident surface has a plurality of sub-curved surfaces. Boundaries between adjacent sub-curved surfaces are bent-shaped with respect to the adjacent sub-curved surfaces.
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公开(公告)号：US09769904B2
公开(公告)日：2017-09-19
申请号：US14610353
申请日：2015-01-30
Applicant: LITE-ON TECHNOLOGY CORPORATION
Inventor： Chien-Lung Wang , Shih-Chang Wang , Po-Chang Li , Li-Po Chang
CPC classification number: H05B37/0218 , H01J1/00 , H01J61/00 , H01J2201/00 , Y02B20/46
Abstract: A light-emitting device includes an autotransformer, a circuit module and a light-emitting module. The autotransformer includes a first positive conductive wire for receiving a first input voltage within a first predetermined voltage range, a second positive conductive wire for receiving a second input voltage within a second predetermined voltage range, and a common negative conductive wire electrically mated to the first positive conductive wire and the second positive conductive wire. The first predetermined voltage range is larger than the second predetermined voltage range. The circuit module includes a driver electrically connected to the autotransformer, and a predetermined operating voltage value for driving the driver is substantially within the second predetermined voltage range. The light-emitting module is electrically connected to the driver. Therefore, one of both the first and the second positive conductive wires along with the common negative conductive wire are electrically connected to an AC power source.
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公开(公告)号：US11125414B2
公开(公告)日：2021-09-21
申请号：US16190178
申请日：2018-11-14
Inventor： Wei-Wen Shih , Shih-Chang Wang
IPC: F21V5/04 , F21S8/08 , F21V13/04 , F21V5/08 , F21V3/02 , F21Y115/10 , F21W111/02 , F21W131/103
Abstract: A light distribution module configured to control a light distribution of a light source is provided. The light distribution module includes a lens and an optical cover. The lens has a first light-incident surface, a first light-emitting surface opposite to the first light-incident surface, and an accommodating recess located at a side of the first light-incident surface, wherein the accommodating recess is configured to contain the light source. The optical cover covers the lens and has a second light-incident surface and a second light-emitting surface opposite to the second light-incident surface, wherein the second light-incident surface is located between the first light-emitting surface and the second light-emitting surface, and the second light-incident surface has a plurality of sub-curved surfaces. Boundaries between adjacent sub-curved surfaces are bent-shaped with respect to the adjacent sub-curved surfaces.
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公开(公告)号：US20180299668A1
公开(公告)日：2018-10-18
申请号：US15609048
申请日：2017-05-31
Inventor： Shih-Chang Wang , Wei-Wen Shih , Pin-Hao Hsu
Abstract: An optical modeling method and an electronic apparatus for building a target lens model are provided. The optical modeling method includes: calculating and generating a first lens model according to a spatial intensity distribution of a light source and a first target intensity distribution; introducing an external shape of the light source and calculating a first intensity distribution according to the spatial intensity distribution and the first lens model; obtaining a first difference level by comparing the first target intensity distribution and the first intensity distribution; taking the first lens model as the target lens model if the first difference level is not greater than preset threshold; otherwise, correcting the first target intensity distribution to a second target intensity distribution according to the first difference level, and calculating and generating a second lens model according to the spatial intensity distribution of the light source and the second target intensity distribution.
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