Patents by Inventor Ligang Wang
Ligang Wang 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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Patent number: 9057882Abstract: An optical element has layers formed on a substrate, including alternating first and second layers having first and second refractive indices, nL and nH that exhibit a spectral characteristic, providing, for incident light at a predetermined wavelength and directed toward the optical element within a range of angles bounded by first and second incident angles ?1 and ?2, between 0 and 80 degrees and differing by at least 1 degree, substantially linear polarization-averaged attenuation of the incident light energy wherein, for any incident angle ?n between ?1 and ?2, A?n is the corresponding polarization-averaged attenuation, and wherein the polarization-averaged attenuation at A?n at angle ?1 is less than or equal to an optical density value of 0.2 and the polarization-averaged attenuation A?n at angle ?2 exceeds an optical density value of 4.Type: GrantFiled: February 11, 2015Date of Patent: June 16, 2015Assignee: Semrock, Inc.Inventors: Ligang Wang, Turan Erdogan
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Publication number: 20150153583Abstract: An optical element has layers formed on a substrate, including alternating first and second layers having first and second refractive indices, nL and nH that exhibit a spectral characteristic, providing, for incident light at a predetermined wavelength and directed toward the optical element within a range of angles bounded by first and second incident angles ?1 and ?2, between 0 and 80 degrees and differing by at least 1 degree, substantially linear polarization-averaged attenuation of the incident light energy wherein, for any incident angle ?n between ?1 and ?2, A?n is the corresponding polarization-averaged attenuation, and wherein the polarization-averaged attenuation at A?n at angle ?1 is less than or equal to an optical density value of 0.2 and the polarization-averaged attenuation A?n at angle ?2 exceeds an optical density value of 4.Type: ApplicationFiled: February 11, 2015Publication date: June 4, 2015Inventors: Ligang Wang, Turan Erdogan
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Patent number: 9019606Abstract: An optical element has layers formed on a substrate, including alternating first and second layers having first and second refractive indices, nL and nH that exhibit a spectral characteristic, providing, for incident light at a predetermined wavelength and directed toward the optical element within a range of angles bounded by first and second incident angles ?1 and ?2, between 0 and 80 degrees and differing by at least 1 degree, substantially linear polarization-averaged attenuation of the incident light energy wherein, for any incident angle ?n between ?1 and ?2, A?n is the corresponding polarization-averaged attenuation, and wherein the polarization-averaged attenuation at A?n at angle ?1 is less than or equal to an optical density value of 0.2 and the polarization-averaged attenuation A?n at angle ?2 exceeds an optical density value of 4.Type: GrantFiled: May 20, 2011Date of Patent: April 28, 2015Assignee: Semrock, Inc.Inventors: Ligang Wang, Turan Erdogan
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Patent number: 8958156Abstract: The present disclosure relates to thin film optical interference filters. The filters include a substrate and a plurality of alternating material layers deposited on the substrate. When operated at about 45° angle of incidence, the filters exhibit at least one of improved polarization splitting, edge steepness, bandpass bandwidth, and blocking, relative to conventional thin film interference filters.Type: GrantFiled: May 29, 2008Date of Patent: February 17, 2015Assignee: Semrock, Inc.Inventors: Turan Erdogan, Ligang Wang
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Patent number: 8940770Abstract: The present invention discloses a nitropyridinyl ethyleneimine compound as shown in the formula I and a preparation method of the same, as well as use of the compound in manufacture of a prodrug and in manufacture of a drug for treating a tumor.Type: GrantFiled: November 14, 2013Date of Patent: January 27, 2015Assignee: Beijing Yiling Bioengineering Co., Ltd.Inventors: Shangjin Yang, Jianhui Yan, Ligang Wang, Xingna Guo, Shubin Li, Guoqiang Wu, Ruiya Zuo, Xin Huang, Hongtao Wang, Lingling Wang, Wenjuan Huang, Huigang Lu, Ke Feng, Fang Li, Huimin He, Yu Liu
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Patent number: 8879150Abstract: Optical components and their methods of manufacture are provided, including a first stack of layers configured to exhibit a first stop band for s-polarized radiation and a second stop band for p-polarized radiation incident on the first stack of layers at an oblique angle, a second stack of layers configured to exhibit a third stop band for s-polarized radiation and a fourth stop band for p-polarized radiation incident on the second stack of layers at the oblique angle, where the cut-on wavelength for the first stop band is approximately equal to or larger than the cut-off wavelength for the third stop band. Optical components are further provided to include extended blocking functionality, and to permit stress balancing in thin-film coatings on opposite sides of a substrate.Type: GrantFiled: March 19, 2010Date of Patent: November 4, 2014Assignee: SEMROCK, Inc.Inventors: Ligang Wang, Craig Hodgson, Turan Erdogan
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Publication number: 20140073796Abstract: The present invention discloses a nitropyridinyl ethyleneimine compound as shown in the formula I and a preparation method of the same, as well as use of the compound in manufacture of a prodrug and in manufacture of a drug for treating a tumor.Type: ApplicationFiled: November 14, 2013Publication date: March 13, 2014Applicant: Beijing Yiling Bioengineering Co., LtdInventors: Shangjin Yang, Jianhui Yan, Ligang Wang, Xingna Guo, Shubin Li, Guoqiang Wu, Ruiya Zuo, Xin Huang, Hongtao Wang, Lingling Wang, Wenjuan Huang, Huigang Lu, Ke Feng, Fang Li, Huimin He, Yu Liu
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Publication number: 20140049630Abstract: An optical image splitter disposed in the path of image-bearing light along an optical axis has a coated dichroic surface disposed at an angle of 15 degrees or less relative to incident light along the optical axis. The coated dichroic surface has a number of layers of material, the of layers including layers having a first refractive index, nL, and layers having a second refractive index, nH, greater than the first refractive index. The coated surface transmits light of at least a first wavelength range to form a first image at an image plane and reflects light of a second wavelength range to form a second image at the image plane.Type: ApplicationFiled: August 15, 2012Publication date: February 20, 2014Applicant: Semrock, Inc.Inventors: Turan Erdogan, Prashant Prabhat, Ligang Wang
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Patent number: 8609851Abstract: The present invention discloses a nitropyridinyl ethyleneimine compound as shown in the formula I and a preparation method of the same, as well as use of the compound in manufacture of a prodrug and in manufacture of a drug for treating a tumor.Type: GrantFiled: October 27, 2009Date of Patent: December 17, 2013Assignee: Beijing Yiling Bioengineering Co., Ltd.Inventors: Shangjin Yang, Jianhui Yan, Ligang Wang, Xingna Guo, Shubin Li, Guoqiang Wu, Ruiya Zuo, Xin Huang, Hongtao Wang, Lingling Wang, Wenjuan Huang, Huigang Lu, Ke Feng, Fang Li, Huimin He, Yu Liu
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Publication number: 20130308198Abstract: A dichroic beamsplitter has a composite prism that has at least first and second prism elements that are coupled together along facing surfaces, wherein the respective facing surfaces of the first and second prism elements are equidistant from each other. The composite prism has a first flat external surface that lies within a first plane, a second flat external surface that lies within a second plane that is perpendicular to the first plane, a third flat external surface that lies within a third plane that is parallel to the second plane, and a coated surface internal to the composite prism and having a multilayer thin-film dichroic beamsplitter coating, wherein the coated surface lies within a fourth plane that intersects at least one of the first, second, and third planes at an angle that is less than about 25 degrees.Type: ApplicationFiled: March 13, 2013Publication date: November 21, 2013Applicant: SEMROCK, INC.Inventors: Turan Erdogan, Ligang Wang, Prashant Prabhat
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Publication number: 20130283255Abstract: The present invention provides a method, a device and a system for installing terminal software. The method comprises: a terminal determining to access a computer host as a driver according to attributes of a current port, and uploading an automatic operating program to the host; the host running the autorun program, and then the automatic operating program obtaining information related to terminal software on the host and feeding the obtained information related to terminal software back to the terminal; the terminal using the information related to terminal software to obtain corresponding terminal software from a server, and uploading the obtained terminal software to the host; and the automatic operating program installing the terminal software on the host.Type: ApplicationFiled: April 2, 2011Publication date: October 24, 2013Applicant: ZTE CORPORATIONInventor: Ligang Wang
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Publication number: 20130215499Abstract: An optical filter apparatus transmits less than 5% of light within a notch spectral range about a central line wavelength with a notch bandwidth, and transmits more than 90% of light within a transmission spectral range that extends over an adjacent pass band of longer and shorter wavelengths and excludes the notch. The apparatus has a first thin film interference filter and a second thin film interference filter in the path of incident light reflected from the first filter. The first and second thin film interference filters are each treated to transmit light of the notch spectral range and reflect light of the transmission spectral range and each have thin film layers formed on a substrate, including first layers having a first refractive index, and second layers having a higher second refractive index. The notch bandwidth at full width half transmission is less than 5% of the central line wavelength.Type: ApplicationFiled: February 21, 2012Publication date: August 22, 2013Applicant: SEMROCK, INC.Inventors: Ligang Wang, Turan Erdogan
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Patent number: 8508849Abstract: An optical filter is provided which includes a plurality of hard coating layers of alternating high and low refractive index provided on a substrate and has an associated first transmission band. The filter also includes at least one additional plurality of hard coating layers including high and low refractive index layers and Herpin equivalent layers sandwiched therebetween. The additional plurality of layers has an associated second transmission band that substantially coincides with the first transmission band, but provides additional blocking at wavelengths outside the first transmission band. Relatively wide transmission bands and high blocking over an extended range of wavelengths can be achieved such that the filter is suitable for use in multiphoton fluorescence systems.Type: GrantFiled: July 19, 2010Date of Patent: August 13, 2013Assignee: Semrock, Inc.Inventors: Craig Hodgson, Turan Erdogan, Ligang Wang
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Patent number: 8441710Abstract: An optical filter is provided, including a first plurality and second plurality of alternating first and second material layers, where the first plurality of layers is at a first angle to incident light and has a cut-on edge, and the second plurality of layers is at a second angle to the incident light and a cut-off edge; where polarization splitting of the first plurality of layers at the cut-on edge and polarization splitting of the second plurality of layers at the cut-off edge do not exceed approximately 1 percent for any first and second angle between approximately 0 and 40 degrees; and the s-stopband wavelength of the second plurality of layers is approximately less than or equal to the cut-on edge wavelength, which is less than the cut-off edge wavelength, which is approximately less than or equal to the s-stopband wavelength of the first plurality of layers.Type: GrantFiled: January 8, 2010Date of Patent: May 14, 2013Assignee: Semrock, Inc.Inventors: Ligang Wang, Turan Erdogan
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Publication number: 20130093656Abstract: A method and an apparatus for correcting gamma values of LCD screen are provided in the present invention to solve the problem of color cast and color difference due to that the existing LCD screen can only control the gamma values of the LCD screen to balance brightness, color and contrast of the LCD screen by adjusting the brightness of white backlight and it cannot respectively control the gamma values of the RGB three colors of the LCD screen. The present invention uses a method for separately adjusting the gamma values of the RGB three colors of the LCD screen, that is, separately adjusting the red, green and blue three color lights, to improve the display effect of the LCD screen, moreover, the display effect is optimized by readjusting the current working state value of the LCD screen.Type: ApplicationFiled: July 29, 2010Publication date: April 18, 2013Applicant: ZTE CORPORATIONInventor: Ligang Wang
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Publication number: 20120293868Abstract: An optical element has layers formed on a substrate, including alternating first and second layers having first and second refractive indices, nL and nH that exhibit a spectral characteristic, providing, for incident light at a predetermined wavelength and directed toward the optical element within a range of angles bounded by first and second incident angles ?1 and ?2, between 0 and 80 degrees and differing by at least 1 degree, substantially linear polarization-averaged attenuation of the incident light energy wherein, for any incident angle ?n between ?1 and ?2, A?n is the corresponding polarization-averaged attenuation, and wherein the polarization-averaged attenuation at A?n at angle ?1 is less than or equal to an optical density value of 0.2 and the polarization-averaged attenuation A?n at angle ?2 exceeds an optical density value of 4.Type: ApplicationFiled: May 20, 2011Publication date: November 22, 2012Applicant: SEMROCK, INC.Inventors: Ligang Wang, Turan Erdogan
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Patent number: 8300313Abstract: In accordance with the invention, a filter is fabricated to take into account the effect of absorption by filter material. The method is exemplified by the fabricating of an ultraviolet light transmission filter for transmitting a band within the range 230-320 nanometers. The resulting filter comprises plurality of hard-coating, thin-film layers of alternating high and low index of refraction. The improved filter provides high transmission, sharp edge slopes, and deep and extended out-of-band blocking. As compared with currently available filters, the filter provides transmission up to three or more times greater, edge slopes up to four times sharper, and deep extended out-of-band blocking extending further, even through the visible range.Type: GrantFiled: April 29, 2011Date of Patent: October 30, 2012Assignee: Semrock, Inc.Inventors: Atul Pradhan, Jay Anzellotti, Joseph T. Foss, Ligang Wang, Turan Erdogan
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Publication number: 20120262504Abstract: A method and apparatus for controlling the display of a liquid crystal display are provided. The method comprises: receiving an image to be displayed (101); acquiring a COM clock to be used as a sampling signal to refresh a liquid crystal display (102); synchronizing a control clock of a backlight of the liquid crystal display according to the sampling signal so as to control the duty ratio of the backlight of the liquid crystal display to enable the liquid crystal display to display the image (103). By way of the present invention, the display effects of the mobile phone LCD outside screen are improved, and user experience is improved as well.Type: ApplicationFiled: May 11, 2010Publication date: October 18, 2012Inventor: Ligang Wang
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Publication number: 20120071515Abstract: The present invention discloses a nitropyridinyl ethyleneimine compound as shown in the formula I and a preparation method of the same, as well as use of the compound in manufacture of a prodrug and in manufacture of a drug for treating a tumor.Type: ApplicationFiled: October 27, 2009Publication date: March 22, 2012Inventors: Shangjin Yang, Jianhui Yan, Ligang Wang, Xingna Guo, Shubin Li, Guoqiang Wu, Ruiya Zuo, Xin Huang, Hongtao Wang, Lingling Wang, Wenjuan Huang, Huigang Lu, Ke Feng, Fang Li, Huimin He, Yu Liu
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Patent number: 8074025Abstract: A memory manager that compacts a memory heap and reclaims space allocated to dead entities is disclosed. The memory manager may include threads of a first phase, threads of a second phase, and threads of a third phase. The threads of the first phase may assign a target address to each live entity of the memory heap. The thread of the second phase may update references of the memory heap based upon the target address for each live entity. The threads of the third phase may copy each live entity of the memory heap to its target address.Type: GrantFiled: December 11, 2007Date of Patent: December 6, 2011Assignee: Intel CorporationInventors: Ligang Wang, Xiao Feng Li