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公开(公告)号：US20180246399A1
公开(公告)日：2018-08-30
申请号：US15902204
申请日：2018-02-22
Applicant: Young Optics Inc.
Inventor： S-WEI CHEN , PO-CHING LU
CPC classification number: G03B21/16 , G02B27/0149 , G03B21/2013 , G03B21/204
Abstract: A projection device is disclosed. The projection device includes an air inlet, an air outlet, an optical engine, a heat sink, a fan and a combiner. A first passage is arranged between the air inlet and the air outlet for passing an air flow. The optical engine includes a light source and an imaging lens set outputting a projection light beam. The heat sink is connected to the optical engine, and a part of the heat sink is arranged in the first passage. The fan is arranged in the first passage. The combiner receives the projection light beam. The projection light beam moves in a propagating direction opposite to the entry direction.
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公开(公告)号：US10061188B2
公开(公告)日：2018-08-28
申请号：US15481462
申请日：2017-04-07
Applicant: Coretronic Corporation
Inventor： Chi-Hsun Wang , Chang-Hsuan Chen , Hsuan-I Wu , Ko-Shun Chen
IPC: G03B21/20 , F21V29/70 , F21V7/06 , F21V7/08 , F21V13/08 , F21V13/12 , G02B27/48 , G03B21/16 , F21V9/30 , F21Y115/30 , G03B21/00 , F21K9/64
CPC classification number: G03B21/2066 , F21K9/64 , F21V7/06 , F21V7/08 , F21V9/30 , F21V13/08 , F21V13/12 , F21V29/70 , F21Y2115/30 , G02B27/48 , G03B21/005 , G03B21/16 , G03B21/204 , G03B21/208 , G03B21/2093
Abstract: An illumination system including at least one light source, a reflection cover, a wavelength conversion element, and a filter element is provided. A focal point of the reflection cover is disposed on an extension line of a transmission path of an excitation beam provided by the light source, and an opening of the reflection cover is adjacent to the focal point. The wavelength conversion element penetrates through the opening, and has a light-action region. The light-action region is disposed on the transmission path of the excitation beam, and converts the excitation beam into a conversion beam. The reflection cover is disposed on a transmission path of the conversion beam. The filter element is disposed on a transmission path of the conversion beam from the reflection cover. The conversion beam from the reflection cover is obliquely incident to the filter element, and the filter element filters the conversion beam.
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公开(公告)号：US20180239227A1
公开(公告)日：2018-08-23
申请号：US15887168
申请日：2018-02-02
Applicant: SEIKO EPSON CORPORATION
Inventor： Junichi SUZUKI
CPC classification number: G03B21/16 , G03B21/2026 , H04N9/3144 , H04N9/315 , H04N9/3182 , H05B41/2887 , H05B41/2928
Abstract: A projector according to the invention includes a discharge lamp, a cooling section, and a control section. The control section is configured to execute a first cooling control in which a number of revolutions of the cooling section does not depend on an inter-electrode voltage of the discharge lamp and a second cooling control for controlling the cooling section based on first control information indicating a relation between the inter-electrode voltage and the number of revolutions. The number of revolutions in the first cooling control is equal to or smaller than the number of revolutions in the second cooling control. When the inter-electrode voltage is larger than a first voltage value or when a cumulative lighting time of the discharge lamp is larger than a first time, the control section configured to switch the control of the cooling section from the first cooling control to the second cooling control.
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公开(公告)号：US20180217481A1
公开(公告)日：2018-08-02
申请号：US15879842
申请日：2018-01-25
Applicant: SEIKO EPSON CORPORATION
Inventor： Katsumitsu HAMA , Tomohiro TAKAGI , Yuta ITO , Takayuki MATSUBARA
CPC classification number: G03B21/204 , G03B21/006 , G03B21/16 , G03B21/2013 , G03B21/2066 , G03B21/208 , G03B33/12
Abstract: A light source apparatus includes a first light source section that outputs blue light along a first illumination optical axis,the second light source section are arranged side by side and outputs excitation light along a second illumination optical axis substantially parallel to the first illumination optical axis, a reflection member that reflects the excitation light in such a way that the reflected excitation light travels along a third illumination optical axis that intersects the first illumination optical axis and the second illumination optical axis, a wavelength converter on which reflects converted light having a wavelength different from a wavelength of the excitation light, and a light combiner that is located in the position where the first illumination optical axis and the third illumination optical axis intersect each other and transmits the blue light and the excitation light but reflects the converted light.
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公开(公告)号：US20180196337A1
公开(公告)日：2018-07-12
申请号：US15869096
申请日：2018-01-12
Applicant: Coretronic Corporation
Inventor： Chi-Chuan Wang , Yung-Ming Li , Tsung-Ching Lin , Jhih-Hao Chen , Wei-Chi Liu , Shi-Wen Lin
IPC: G03B21/16
CPC classification number: G03B21/16
Abstract: A projector includes a casing, an optical engine module, and a heat dissipation module. The optical engine module is disposed in the casing. The heat dissipation module is disposed in the casing and includes a heat dissipation fin set. The heat dissipation fin set includes at least one heat dissipation fin and at least one turbulent structure. The heat dissipation fin has a surface. The surface includes a first turbulent region and a second turbulent region. The first turbulent region is adjacent to the second turbulent region. The turbulent structure is disposed at least one of the first turbulent region and the second turbulent region, and the turbulent structure protrudes from the surface. An opening is formed between a top end of the turbulent structure and the surface.
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Patent Agency Ranking
公开(公告)号：US20180164541A1
公开(公告)日：2018-06-14
申请号：US15465920
申请日：2017-03-22
Applicant: Delta Electronics, Inc.
Inventor： Meng-Sheng CHANG , Hui-Hsiung WANG
CPC classification number: G02B7/1815 , G02B26/0833 , G03B21/008 , G03B21/16
Abstract: A digital micromirror device projector is provided. The digital micromirror device projector includes a digital micromirror device chip, a heat conductive member, a thermo-electric cooler unit and a thermal insulator. The heat conductive member includes a heat conductive plate and a heat conductive protrusion. The heat conductive plate includes a first surface and a second surface, wherein the first surface is opposite to the second surface. The heat conductive protrusion is formed on the first surface. The heat conductive protrusion is thermally connected to the digital micromirror device chip by conduction. The thermo-electric cooler unit includes a cool side and a hot side, wherein the cool side is connected to the second surface. The thermal insulator is attached to the first surface. The thermal insulator surrounds the heat conductive protrusion.
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公开(公告)号：US09977315B2
公开(公告)日：2018-05-22
申请号：US15248392
申请日：2016-08-26
Applicant: Seiko Epson Corporation
Inventor： Hirofumi Kasuga , Takeshi Ishikawa , Tadashi Kinebuchi
CPC classification number: G03B21/145 , G03B21/16 , G03B21/28
Abstract: A projector includes a projector main body disposed in an attic above a ceiling plate and configured to project image light on a screen located in a room interior below the ceiling plate, a cover member set on the ceiling plate and configured to cover the projector main body, and a projection window provided in the cover member and configured to transmit the image light projected from the projector main body to the room interior side. The projection window is disposed further on the attic side than the ceiling plate to tilt with respect to the ceiling plate.
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公开(公告)号：US20180136548A1
公开(公告)日：2018-05-17
申请号：US15574757
申请日：2016-05-13
Applicant: NIPPON SEIKI CO., LTD.
Inventor： Akinori KOIIDA , Yuichi TAKAHASHI , Takuro HIROKAWA , Takayuki HATANO
CPC classification number: G03B21/16 , F21S2/00 , F21V15/01 , F21V29/503 , F21V29/507 , F21V29/70 , F21V29/87 , F21V29/89 , G03B21/00 , G03B21/005 , G03B21/2013 , G03B21/2033 , G03B21/2066 , H04N9/31
Abstract: A projection display device includes a first substrate on which a red light source is mounted, a second substrate on which a green light source is mounted, a third substrate on which a blue light source is mounted, a housing to which the first through third substrates are attached, an optical member accommodated inside the housing, and a light modulating element; light emitted inside the housing from the red light source, the green light source, and the blue light source being distributed by the optical member, the distributed light being converted to a prescribed display image by the light modulating element, and the light being projected outside the housing. The first through third substrates are made of metal or of filler-containing plastic compounded with a filler having high thermal conductivity, and the housing is made of metal or a filler-containing plastic compounded a filler having high thermal conductivity.
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公开(公告)号：US09971234B2
公开(公告)日：2018-05-15
申请号：US15208614
申请日：2016-07-13
Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
Inventor： Chin-Wen Yeh
CPC classification number: G03B21/16 , G03B21/2093
Abstract: A cooling device for an emitting module of a projector includes a base, a guiding portion installed on the base, and a latch portion installed on the base. The guiding portion includes a positioning plate secured on one side of the base and a guiding plate secured on the other side of the base. The positioning plate and the guiding plate are foldable relative to the base to be connected with each other and so define an inlet channel. Air flow can pass through the inlet channel to cool the emitting module. The latch portion is configured to form an outlet in different directions to adjust a direction and strength of the air flow.
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公开(公告)号：US09971233B2
公开(公告)日：2018-05-15
申请号：US15065263
申请日：2016-03-09
Applicant: SEIKO EPSON CORPORATION
Inventor： Satoshi Kito
CPC classification number: G03B21/16 , G03B21/2026 , G03B21/2053
Abstract: A projector according to an aspect of the invention includes a discharge lamp having a light emitting tube and configured to emit light, a light modulation device configured to modulate the light emitted from the discharge lamp in accordance with an image signal, a projection optical system configured to project the light modulated by the light modulation device, a first detection section configured to detect ultraviolet light out of the light emitted from the discharge lamp, and a control section configured to determine a deterioration state of the light emitting tube based on a light intensity of the ultraviolet light detected by the first detection section.
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