Patents by Inventor Bee Chuan Tan
Bee Chuan Tan 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: 11796418Abstract: A manual inspection system and method to inspect for defects in Contact lenses comprising; an image acquisition system with at least two high resolution cameras; Top illumination light head used for acquiring Bright field images; a Backlit illumination module to acquire Dark field images; at least another back lit illumination module to acquire a different type of Bright field images; an interchangeable mechanism to change measurement gauges suitable for a particular product; a rotating wheel embedded with multiple optical filters to cater to different imaging requirements; a first camera to capture the full view of the contact lens at a beam splitter; a second camera suitably mounted on a swivel arm to capture a higher resolution image of a selected defective area as viewed on a projection screen; a glass template or measurement gauge mounted at a suitable position to achieve overlaid images of the lens and the gauge on a projection screen for taking measurements; a flexible template measurement gauge as anType: GrantFiled: October 14, 2021Date of Patent: October 24, 2023Assignee: EMAGE VISION PTE. LTD.Inventors: Ya'akob Bin Mohamed, Bee Chuan Tan
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Patent number: 11408834Abstract: A system for detecting defects in a contact lens material comprising: a camera having a lens and a digital image output for inspecting said lens suspended in saline solution, wherein said camera's digital image output includes only the image produced by light in a color spectrum corresponding to a portion of the spectrum of light produced by fluorescent emission of said lens material; a first Ultra violet light source to illuminate said lens and excite fluorescent emission therein; a first filter to filter the emitted light from the lens which is illuminated by Ultra violet light; and a computer having an associated memory, an input for accepting the digital image output from said camera, and an output representative of an analyzed digital image wherein said analyzed digital image includes visible indications of any imperfections detected in said lens material.Type: GrantFiled: July 28, 2020Date of Patent: August 9, 2022Assignee: Emage Vision PTE. Ltd.Inventors: Sergey Smorgon, Bee Chuan Tan
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Publication number: 20220178787Abstract: A manual inspection system and method to inspect for defects in Contact lenses comprising; an image acquisition system with at least two high resolution cameras; Top illumination light head used for acquiring Bright field images; a Backlit illumination module to acquire Dark field images; at least another back lit illumination module to acquire a different type of Bright field images; an interchangeable mechanism to change measurement gauges suitable for a particular product; a rotating wheel embedded with multiple optical filters to cater to different imaging requirements; a first camera to capture the full view of the contact lens at a beam splitter; a second camera suitably mounted on a swivel arm to capture a higher resolution image of a selected defective area as viewed on a projection screen; a glass template or measurement gauge mounted at a suitable position to achieve overlaid images of the lens and the gauge on a projection screen for taking measurements; a flexible template measurement gauge as anType: ApplicationFiled: October 14, 2021Publication date: June 9, 2022Inventors: Ya'akob Bin Mohamed, Bee Chuan Tan
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Patent number: 10885621Abstract: An inspection system and method to detect the presence or absence of ophthalmic lenses in a plastic shell just before the seal is applied comprising a high resolution imaging device suitably integrated with an optical module; a UV illumination module suitably mounted below the ophthalmic lens holder; a Visible LED based Top lighting module suitably mounted on Top of the Ophthalmic lens holder; the inspection system which captures images of the lens immersed in a saline solution in a the plastic shell; analyzing the image and determining the characteristics of the lens perimeter and the optical center; making a decision to reject the inspected item if the analyzed image indicates the presence of a flipped, multiple and folded lens or the absence of the lens; making a decision to accept the inspected item, if the analyzed image indicates the presence of a single lens positioned in the correct orientation.Type: GrantFiled: February 12, 2018Date of Patent: January 5, 2021Assignee: EMAGE VISION PTE. LTD.Inventors: Bee Chuan Tan, Chern Fei Chua
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Publication number: 20200355626Abstract: A system for detecting defects in a contact lens material comprising: a camera having a lens and a digital image output for inspecting said lens suspended in saline solution, wherein said camera's digital image output includes only the image produced by light in a color spectrum corresponding to a portion of the spectrum of light produced by fluorescent emission of said lens material; a first Ultra violet light source to illuminate said lens and excite fluorescent emission therein; a first filter to filter the emitted light from the lens which is illuminated by Ultra violet light; and a computer having an associated memory, an input for accepting the digital image output from said camera, and an output representative of an analyzed digital image wherein said analyzed digital image includes visible indications of any imperfections detected in said lens material.Type: ApplicationFiled: July 28, 2020Publication date: November 12, 2020Inventors: Sergey SMORGON, Bee Chuan TAN
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Patent number: 10788393Abstract: A system for inspecting an ophthalmic lens comprising an optical connection: an illumination source 60, wherein the light source is arranged to project the light to wards the ophthalmic lens held in the holder; an optical lens 83, wherein the lens is arranged to condition and project the light beam to illuminate the lens; a swivel glass plate 40, which is arranged to move in and out of the optical axis 110; a bright field imaging unit, wherein the bright field imaging unit is arranged to capture an image projected by the illumination source 60; a dark field imaging unit, wherein the dark field imaging unit is arranged to capture an image projected by the illumination source 60; and at least one camera sensor operatively coupled with the swivel glass plate, wherein the at least one camera sensor is arranged to capture an image of the light penetrating through the optical lens 83 contained at the bottom of the container 50 and the optical module 20 positioned in line with the optical axis 110.Type: GrantFiled: May 12, 2015Date of Patent: September 29, 2020Assignee: EMAGE VISION PTE. LTDInventors: Bee Chuan Tan, Lew Siang Charles Cher
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Patent number: 10739278Abstract: A system for detecting defects in a contact lens material comprising: a camera having a lens and a digital image output for inspecting said lens suspended in saline solution, wherein said camera's digital image output includes only the image produced by light in a color spectrum corresponding to a portion of the spectrum of light produced by fluorescent emission of said lens material; a first Ultra violet light source to illuminate said lens and excite fluorescent emission therein; a first filter to filter the emitted light from the lens which is illuminated by Ultra violet light; and a computer having an associated memory, an input for accepting the digital image output from said camera, and an output representative of an analyzed digital image wherein said analyzed digital image includes visible indications of any imperfections detected in said lens material.Type: GrantFiled: November 18, 2016Date of Patent: August 11, 2020Assignee: EMAGE VISION PTE. LTDInventors: Sergey Smorgon, Bee Chuan Tan
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Patent number: 10718717Abstract: An inspection system to inspect the consistency and thermal seal quality of blister packages, the system comprising an illumination module and a color imaging device suitably integrated with an optical module. The blister packages that are thermally sealed are sequentially presented to the color imaging device within its Field of View whereupon the inspection captures multiple images of the illuminated top side of the sealed blister package using the said image pickup devise. The images then undergo analysis to determine the gray scale values of the sealing area. By comparing the gray level values with predetermined gray level values that are programmed at setup, a decision is made to reject the inspected item if the analyzed gray level values is not substantially the same as the predetermined gray level values, or to accept the inspected item if the analyzed gray level values is substantially the same as the predetermined gray level values or rejecting the blister if determined otherwise.Type: GrantFiled: March 7, 2016Date of Patent: July 21, 2020Assignee: EMAGE VISION PTE. LTD.Inventors: Sergey Smorgon, Bee Chuan Tan, Chern Fei Chua, Ya'akob Bin Mohamed
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Publication number: 20180232876Abstract: An inspection system and method to detect the presence or absence of ophthalmic lenses in a plastic shell just before the seal is applied comprising a high resolution imaging device suitably integrated with an optical module; a UV illumination module suitably mounted below the ophthalmic lens holder; a Visible LED based Top lighting module suitably mounted on Top of the Ophthalmic lens holder; the inspection system which captures images of the lens immersed in a saline solution in a the plastic shell; analyzing the image and determining the characteristics of the lens perimeter and the optical center; making a decision to reject the inspected item if the analyzed image indicates the presence of a flipped, multiple and folded lens or the absence of the lens; making a decision to accept the inspected item, if the analyzed image indicates the presence of a single lens positioned in the correct orientation.Type: ApplicationFiled: February 12, 2018Publication date: August 16, 2018Applicant: EMAGE VISION PTE. LTD.Inventors: Bee Chuan TAN, Chern Fei CHUA
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Publication number: 20170138867Abstract: A system for detecting defects in a contact lens material comprising: a camera having a lens and a digital image output for inspecting said lens suspended in saline solution, wherein said camera's digital image output includes only the image produced by light in a color spectrum corresponding to a portion of the spectrum of light produced by fluorescent emission of said lens material; a first Ultra violet light source to illuminate said lens and excite fluorescent emission therein; a first filter to filter the emitted light from the lens which is illuminated by Ultra violet light; and a computer having an associated memory, an input for accepting the digital image output from said camera, and an output representative of an analyzed digital image wherein said analyzed digital image includes visible indications of any imperfections detected in said lens material.Type: ApplicationFiled: November 18, 2016Publication date: May 18, 2017Inventors: Sergey SMORGON, Bee Chuan TAN
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Publication number: 20170082522Abstract: A system for inspecting an ophthalmic lens comprising an optical connection: an illumination source 60, wherein the light source is arranged to project the light to wards the ophthalmic lens held in the holder; an optical lens 83, wherein the lens is arranged to condition and project the light beam to illuminate the lens; a swivel glass plate 40, which is arranged to move in and out of the optical axis 110; a bright field imaging unit, wherein the bright field imaging unit is arranged to capture an image projected by the illumination source 60; a dark field imaging unit, wherein the dark field imaging unit is arranged to capture an image projected by the illumination source 60; and at least one camera sensor operatively coupled with the swivel glass plate, wherein the at least one camera sensor is arranged to capture an image of the light penetrating through the optical lens 83 contained at the bottom of the container 50 and the optical module 20 positioned in line with the optical axis 110.Type: ApplicationFiled: May 12, 2015Publication date: March 23, 2017Inventors: Bee Chuan TAN, Lew Siang Charles CHER
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Publication number: 20160258880Abstract: An inspection system to inspect the consistency and thermal seal quality of blister packs comprising an illumination module; a color imaging device suitably integrated with an optical module; The blister packs that are thermally sealed are sequentially presented to the color imaging device within its Field of View; the inspection captures multiple images of the illuminated top side of the sealed blister package using the said image pickup device; analyzing the image and determining the gray scale values of the sealing area; comparing the gray level values with predetermined gray level values that are programmed at setup; making a decision to reject the inspected item if the analyzed gray level values is not substantially the same as the predetermined gray level values; making a decision to accept the inspected item if the analyzed gray level values is substantially the same as the predetermined gray level values or rejecting the blister if determined otherwise.Type: ApplicationFiled: March 7, 2016Publication date: September 8, 2016Inventors: Sergey Smorgon, Bee Chuan Tan, Chem Fei Chua, Ya'akob Bin Mohamed