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公开(公告)号：US10908489B2
公开(公告)日：2021-02-02
申请号：US16323089
申请日：2017-04-21
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Fei Hu , Zuqiang Guo , Yi Li
IPC: G03B21/20
Abstract: A light emitting device includes a first light source, a light guiding system and a wavelength conversion device. The first light source is configured to emit first excitation light which enters the light guiding system via an incident light channel. The light guiding system is configured to guide the first excitation light to the wavelength conversion device. The wavelength conversion device includes a reflecting segment that reflects the first excitation light to form second excitation light. The light guiding system is further configured to collect the second excitation light and guide the second excitation light to exit via an output light channel. The first excitation light and the second excitation light have non-overlapping light paths.
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公开(公告)号：US20200272039A1
公开(公告)日：2020-08-27
申请号：US16646404
申请日：2017-12-06
Applicant: Appotronics Corporation Limited
Inventor： Zuqiang Guo , Peng Du , Yi Li
Abstract: The present disclosure relates to a wavelength conversion device, a light source and a projection device. A light conversion region and a light path conversion region are provided on one surface of the wavelength conversion device. The light path conversion region includes a first segment and a second segment. The first segment and the second segment are configured to alternately receive excitation light and respectively guide the excitation light to different preset light paths. The light conversion region is provided with a wavelength conversion material for receiving excitation light emitted from one of the segments, converting the received excitation light into excited light that has at least one wavelength range different from a wavelength of the excitation light, and emitting the excited light.
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公开(公告)号：US20200271300A1
公开(公告)日：2020-08-27
申请号：US16614105
申请日：2017-08-09
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Zuqiang Guo , Peng Du , Yi Li
Abstract: A light source system includes an exciting light source, a collection system, a wavelength conversion device, a relay system, an optical-mechanical system, a detection device, and a distance adjustment device. The exciting light source emits exciting light. The conversion region converts the exciting light into excited light. Optical axes of the excited light and the exciting light that are emitted from the wavelength conversion device do not coincide with each other. The excited light and exciting light collected by the collection system are guided to the optical-mechanical system via the relay system. The detection device detects information on brightness and/or color coordinates of the light emitted from the optical-mechanical system. The distance adjustment device adjusts a distance between the collection system and the wavelength conversion device in such a manner that the brightness and/or color coordinates of the light emitted from the optical-mechanical system meet a preset condition.
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公开(公告)号：US12124048B2
公开(公告)日：2024-10-22
申请号：US17594767
申请日：2020-06-24
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Zuqiang Guo , Peng Du , Yi Li
CPC classification number: G02B27/1006 , G02B26/0833 , G02B26/0883 , G03B21/008
Abstract: Disclosed are an optical engine system and a display apparatus. The optical engine system includes: a first modulation device configured to modulate first linearly polarized light in a first optical path to obtain first modulated light; a second modulation device configured to modulate second linearly polarized light in a second optical path to obtain second modulated light, the first linearly polarized light and the second linearly polarized light having a same polarization state; and a light combining prism configured to guide the first modulated light and the second modulated light to transmit along a same optical path and obtain projection light. Optical paths of the first modulated light, the second modulated light, and the projection light are located in a same plane.
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公开(公告)号：US11822221B2
公开(公告)日：2023-11-21
申请号：US17420509
申请日：2019-12-23
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Zuqiang Guo , Ning Lu , Yi Li
CPC classification number: G03B21/204 , G02B26/008 , G02B27/141 , G03B21/208 , G03B21/2066 , G03B21/2073
Abstract: Provided is a light source system, including: an excitation light source for emitting excitation light; a wavelength conversion device provided with a conversion layer which is used to perform wavelength conversion on at least a portion of the excitation light to obtain stimulated light, and to exit the stimulated light and the unconverted excitation light; and a dichroic assembly which is used to guide the stimulated light exited from the conversion layer to propagate along the second optical path, and finally to exit from the light source system along the exit optical path, and to guide at least a portion of the unconverted excitation light exited from the conversion layer to transmit on a path, which is not the exit optical path. Further provided is a projection device comprising the above light source system.
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Patent Agency Ranking
公开(公告)号：US11774843B2
公开(公告)日：2023-10-03
申请号：US17604393
申请日：2020-04-23
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Fei Hu , Zuqiang Guo , Ning Lu , Yi Li
CPC classification number: G03B33/08 , G03B21/008 , G03B21/204 , G03B21/208
Abstract: Disclosed are a light source system and a display device, including: a first light source configured to emit first light; a second light source configured to emit second light; a wavelength conversion device configured to perform a wavelength conversion on the first light to obtain third light; a first optical splitter having a first area and a second area; and a first light combining device. The first optical splitter moves in timing sequence to make the first area and the second area be sequentially located on a preset light path. A side surface of the first optical splitter is configured to homogenize the first light and the second light that are emitted to the first light combining device; and the first light combining device is configured to guide the first light, the second light, and the third light to exit along a same light path to form illumination light.
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公开(公告)号：US11600238B2
公开(公告)日：2023-03-07
申请号：US17601388
申请日：2020-05-18
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Chen Chen , Fei Hu , Xin Yu , Zuqiang Guo , Yi Li
IPC: G09G3/34
Abstract: A display device includes a light source, a light modulator, and a control apparatus, the light modulator includes a digital micromirror array including micromirrors and is arranged on a light path of light emitted by the light source and configured to modulate the light emitted by the light source based on a target image and luminance of the light source to obtain a grayscale image. The control apparatus is configured to control a driving current of the light source to adjust the luminance of the light source in different periods within a frame image, and to cause a driving current overdrive pulse of the light source during at least one of the periods, so that a display bit depth of the grayscale image increases from n to n+i and the periods correspond to bitplanes of the grayscale image in one-to-one correspondence, i≥1 and i is an integer.
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公开(公告)号：US11586102B2
公开(公告)日：2023-02-21
申请号：US16622478
申请日：2017-09-26
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Fei Hu , Zuqiang Guo , Peng Du , Yi Li
Abstract: A light source device, includes an excitation light source for generating excitation light, a light condensing device, and a fluorescent cavity. The fluorescent cavity includes a chamber and a fluorescent layer, the chamber having a light window for allowing light to enter and exit and a bottom wall opposite to the light window. The fluorescent layer is provided on the surface of the bottom wall. The excitation light is concentrated by the light condensing device, and then is incident from the light window to the surface of the fluorescent layer to form a light spot and excite the fluorescent layer to generate a laser. The area of the light window is smaller than the area of the light spot, and the laser can be emitted from the light window.
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公开(公告)号：US11243460B2
公开(公告)日：2022-02-08
申请号：US16493972
申请日：2017-04-20
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Fei Hu , Zuqiang Guo , Peng Du , Lin Mi , Yi Li
Abstract: Provided is a light source device including a first light source, a light guiding system and a wavelength conversion device. The first light source emits first exciting light which is incident to the light guiding system along an incidence light channel. The wavelength conversion section absorbs the first exciting light and emits excited light. The first exciting light is obliquely incident to a surface of the reflective section and reflected to form second exciting light. The light guiding system collects the excited light and the second exciting light and guides them to be emitted along an exiting light channel. The light guiding system includes an optical path correcting assembly, which reflects the second exciting light in such a manner that main optical axes of the reflected second exciting light and the excited light coincide, and changes a beam angular distribution of the second exciting light.
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20.发明授权公开(公告)号：US11150547B2
公开(公告)日：2021-10-19
申请号：US16099417
申请日：2017-04-21
Applicant: Appotronics Corporation Limited
Inventor： Zuqiang Guo , Fei Hu , Yi Li
Abstract: A light source system includes an excitation light unit, a spectral filter unit, a scattering unit, and an excited-light unit. The excitation light unit is configured to emit excitation light. In an embodiment, the spectral filter unit reflects a portion of the excitation light to the scattering unit, the scattering unit scatters the same to generate a first light and a second light, and the spectral filter unit transmits the second light. The spectral filter unit also transmits another part of the excitation light to the excited-light unit, the excited-light unit emits excited light under the illumination thereof, and the spectral filter unit reflects the excited light, so that the spectral filter unit merges and emits the transmitted second light and the reflected excited light. The excitation light is thus split into two paths at the spectral filter unit, and finally emits light by combining excitation light and excited light.
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