Patents by Inventor Sheng-Hsiung Chan
Sheng-Hsiung Chan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230094736Abstract: The present invention relates to a laser beam shaping apparatus, which comprises a non-rotational symmetrical semiconductor laser source, a collimating mirror and a shaping apparatus. Therefore, the profile of laser light can be shaped, and the intensity of laser light with Gaussian distribution can be adjusted without designing for a specific wavelength, and the luminous efficiency will not be reduced accordingly. In addition, since the present invention uses planar film-coated elements, it has low requirements on size and installation accuracy, which can not only effectively reduce the cost of the apparatus, but also avoid problems of aberration or deformation at the same time.Type: ApplicationFiled: December 10, 2021Publication date: March 30, 2023Inventors: Sheng Hsiung CHAN, Yu Ta Chung
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Patent number: 11029589Abstract: The present invention relates to a laser light source optical projection architecture, which comprises a laser light source group, a color control device, a phosphor device and an optical filter group. Accordingly, the laser light source optical projection architecture does not require to synchronize the phosphor device with the color field sequential display system, and the color control (ratios of the color duty) does not need to be determined in advance, i.e. at the time the color control device is manufactured. Various color field ratios can be achieved by adjusting positions of the specific color control device to obtain different red, blue and green color field durations, allowing easy electronic control of the color field duty cycles.Type: GrantFiled: December 13, 2019Date of Patent: June 8, 2021Assignees: SYNDIANT INC., XDMICRO (ZHONGSHAN) OPTOELECTRONIC SEMICONDUCTOR CO., LTD.Inventors: Chun Chiu Daniel Wong, Sheng Hsiung Chan
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Publication number: 20210063860Abstract: The present invention relates to a laser light source optical projection architecture, which comprises a laser light source group, a color control device, a phosphor device and an optical filter group. Accordingly, the laser light source optical projection architecture does not require to synchronize the phosphor device with the color field sequential display system, and the color control (ratios of the color duty) does not need to be determined in advance, i.e. at the time the color control device is manufactured. Various color field ratios can be achieved by adjusting positions of the specific color control device to obtain different red, blue and green color field durations, allowing easy electronic control of the color field duty cycles.Type: ApplicationFiled: December 13, 2019Publication date: March 4, 2021Inventors: Chun Chiu Daniel WONG, Sheng Hsiung CHAN
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Publication number: 20070229769Abstract: An adjustable light-modulating device includes: a light valve disposed to receive colored light provided by a color separator of a projection display apparatus, and capable of modulating the colored light; an adjusting mechanism including a fixing frame to be disposed between the light valve and the color separator, and a mounting frame coupled rotatably to the fixing frame; and a securing unit for securing the light valve to the mounting frame. The fixing frame defines a first hole, and has a first periphery surrounding the first hole. The mounting frame defines a second hole registered with the first hole, and has a second periphery surrounding the second hole. The adjusting mechanism further includes a guide projection formed on one of the first and second peripheries and projecting toward and contacting slidably the other one of the first and second peripheries.Type: ApplicationFiled: June 23, 2006Publication date: October 4, 2007Applicant: DIGIMEDIA TECHNOLOGY CO., LTD.Inventors: Shu-Chen Chan, Ya-Fang Yeh, Yue-Lun Tsai, Sheng-Hsiung Chan, Eade Wang
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Publication number: 20070195283Abstract: An adjustable light-modulating device for a projection display apparatus including a color separator capable of providing colored light includes a light valve and an adjusting mechanism. The light valve is disposed to receive the colored light provided by the color separator of the projection display apparatus, and is capable of modulating the colored light. The adjusting mechanism includes a mounting frame to be disposed between the light valve and the color separator, and a securing unit for securing the light valve to the mounting frame such that the light valve is linearly displaceable and tiltable relative to the mounting frame.Type: ApplicationFiled: April 3, 2006Publication date: August 23, 2007Applicant: DIGIMEDIA TECHNOLOGY CO., LTD.Inventors: Shu-Chen Chan, Ya-Fang Yeh, Yue-Lun Tsai, Sheng-Hsiung Chan, Eade Wang
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Patent number: 6523977Abstract: An illuminating apparatus includes a plurality of light sources that generate a plurality of primary color light components, a reflector unit for receiving the primary color light components from the light sources, and an integrator having an input side to receive the primary color light components reflected by the reflector unit.Type: GrantFiled: February 20, 2001Date of Patent: February 25, 2003Assignee: Prokia Technology Co., Ltd.Inventors: Fu-Ming Chuang, Shih-Ping Lee, Sheng-Hsiung Chan, Han-Wen Tsai
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Patent number: 6505938Abstract: A projection display includes a transmissive first light valve and a reflective second light valve that are disposed adjacent to a polarization beam splitter prism and that are used to modulate first, second and third color components. The modulated first, second and third color components are then obtained from one side of the polarization beam splitter prism.Type: GrantFiled: June 13, 2001Date of Patent: January 14, 2003Assignee: Prokia Technology Co., Ltd.Inventors: Fu-Ming Chuang, Sheng-Hsiung Chan, Han-Wen Tsai
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Publication number: 20020191157Abstract: A projection display includes a transmissive first light valve and a reflective second light valve that are disposed adjacent to a polarization beam splitter prism and that are used to modulate first, second and third color components. The modulated first, second and third color components are then obtained from one side of the polarization beam splitter prism.Type: ApplicationFiled: June 13, 2001Publication date: December 19, 2002Inventors: Fu-Ming Chuang, Sheng-Hsiung Chan, Han-Wen Tsai
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Publication number: 20020149747Abstract: In a projection display, input light is separated by a polarization beam splitter prism into first and second color components, and a third color component. The first and second color components, together with a light leakage component that is associated with the third color component, are directed by the polarization beam splitter prism to a color synthesizing prism or a color splitter prism set, which then separates the first and second color components and the light leakage component so as to travel in three different directions, respectively. The first and second color components from the color synthesizing prism or the color splitter prism set, and the third color component from the polarization beam splitter prism are processed by reflective first, second and third light modulators, respectively.Type: ApplicationFiled: April 17, 2001Publication date: October 17, 2002Applicant: PROKIA TECHNOLOGY CO., LTD.Inventors: Fu-Ming Chuang, Sheng-Hsiung Chan
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Patent number: 6457831Abstract: In a projection display, input light is separated by a polarization beam splitter prism into first and second color components, and a third color component. The first and second color components, together with a light leakage component that is associated with the third color component, are directed by the polarization beam splitter prism to a color synthesizing prism or a color splitter prism set, which then separates the first and second color components and the light leakage component so as to travel in three different directions, respectively. The first and second color components from the color synthesizing prism or the color splitter prism set, and the third color component from the polarization beam splitter prism are processed by reflective first, second and third light modulators, respectively.Type: GrantFiled: April 17, 2001Date of Patent: October 1, 2002Assignee: Prokia Technology Co., Ltd.Inventors: Fu-Ming Chuang, Sheng-Hsiung Chan
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Publication number: 20020114157Abstract: An illuminating apparatus includes a plurality of light sources that generate a plurality of primary color light components, a reflector unit for receiving the primary color light components from the light sources, and an integrator having an input side to receive the primary color light components reflected by the reflector unit.Type: ApplicationFiled: February 20, 2001Publication date: August 22, 2002Applicant: Prokia Technology Co., Ltd.Inventors: Fu-Ming Chuang, Shih-Ping Lee, Sheng-Hsiung Chan, Han-Wen Tsai
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Triple-lens type projection display with uniform optical path lengths for different color components
Patent number: 6431709Abstract: A triple-lens type projection display includes a source for generating a white primary beam output, a first beam splitter for splitting the white primary beam output into a first color component and a secondary beam output, a second beam splitter for splitting the secondary beam output into a second color component and a third color component, first, second and third light modulators for modulating the first, second and third color components, respectively, a first projection lens for receiving the first color component from the first light modulator, a second projection lens for receiving the second color component from the second light modulator, and a third projection lens for receiving the third color component from the third light modulator. Each of the first, second and third color components has a respective optical path length that is measured from the first beam splitter to a respective one of the first, second and third light modulators.Type: GrantFiled: January 5, 2001Date of Patent: August 13, 2002Assignee: Prokia Technology Co., Ltd.Inventors: Kuo-Tung Tiao, Fu-Ming Chuang, Sheng-Hsiung Chan -
Publication number: 20020085289Abstract: A projection display includes a light source for generating a beam output that contains first, second and third color components, a color separation/synthesizing prism unit having a color separation part for separating the beam output from the light source into the first, second and third color components that exit the prism unit in three different directions, and first, second and third light modulators for modulating the first, second and third color components that exit from the color separation part. The prism unit further has a color synthesizing part that receives the modulated first, second and third color components from the light modulators and that synthesizes the modulated first, second and third color components so as to form an output beam. A projection lens receives the output beam from the color synthesizing part, and is used to project a color image. The first, second and third color components have equal optical path lengths measured from the light source to the respective light modulator.Type: ApplicationFiled: December 29, 2000Publication date: July 4, 2002Applicant: PROKIA TECHNOLOGY CO., LTD.Inventors: Fu-Ming Chuang, Sheng-Hsiung Chan
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Publication number: 20020085279Abstract: A projection screen includes a lens base having a front side, a rear side, and an array of bores that extend from the rear side to the front side. Each of the bores tapers in a direction from the rear side to the front side. The front side is formed with a plurality of windows, each of which is aligned and communicated with a respective one of the bores. Light that enters the bores from the rear side of the lens base is subjected to multiple total internal reflections as the light propagates along the bores prior to exiting the lens base at the windows.Type: ApplicationFiled: December 29, 2000Publication date: July 4, 2002Applicant: PROKIA TECHNOLOGY CO., LTD.Inventors: Fu-Ming Chuang, Sheng-Hsiung Chan, Han-Wen Tsai
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Patent number: 6404558Abstract: A projection display includes a light source for generating a beam output that contains first, second and third color components, a color separation/synthesizing prism unit having a color separation part for separating the beam output from the light source into the first, second and third color components that exit the prism unit in three different directions, and first, second and third light modulators for modulating the first, second and third color components that exit from the color separation part. The prism unit further has a color synthesizing part that receives the modulated first, second and third color components from the light modulators and that synthesizes the modulated first, second and third color components so as to form an output beam. A projection lens receives the output beam from the color synthesizing part, and is used to project a color image. The first, second and third color components have equal optical path lengths measured from the light source to the respective light modulator.Type: GrantFiled: December 29, 2000Date of Patent: June 11, 2002Assignee: Prokia Technology Co., Ltd.Inventors: Fu-Ming Chuang, Sheng-Hsiung Chan
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Triple-lens type projection display with uniform optical path lengths for different color components
Publication number: 20020041361Abstract: A triple-lens type projection display includes a source for generating a white primary beam output, a first beam splitter for splitting the white primary beam output into a first color component and a secondary beam output, a second beam splitter for splitting the secondary beam output into a second color component and a third color component, first, second and third light modulators for modulating the first, second and third color components, respectively, a first projection lens for receiving the first color component from the first light modulator, a second projection lens for receiving the second color component from the second light modulator, and a third projection lens for receiving the third color component from the third light modulator. Each of the first, second and third color components has a respective optical path length that is measured from the first beam splitter to a respective one of the first, second and third light modulators.Type: ApplicationFiled: January 5, 2001Publication date: April 11, 2002Applicant: Prokia Technology Co., Ltd.Inventors: Kuo-Tung Tiao, Fu-Ming Chuang, Sheng-Hsiung Chan -
Patent number: 6318863Abstract: An illumination device and an image projection apparatus having the same. The illumination device has a light source with multiple light emitting devices and an uniform illuminating means evenly distributed in front of the light source. The light emitted from the light source can thus uniformly project on a light valve. In addition, a polarization converter is used to convert the light into a usable polarization type, so as to increase the illumination efficiency. The image projection apparatus basically has three of the above mentioned illumination devices to emit three elementary color lights projecting onto a screen.Type: GrantFiled: September 10, 1999Date of Patent: November 20, 2001Assignee: Industrial Technology Research InstituteInventors: Kuo-Tung Tiao, Fu-Ming Chuang, Jinn-Chou Yoo, Sheng-Hsiung Chan, Tzeng-Ke Shiau