Patent Issued for Distance vision-realizing eyeglasses for image display device (USPTO 11150490): Park Yong Chul – Insurance News Net

2021 NOV 04 (NewsRx) — By a News Reporter-Staff News Editor at Insurance Daily News — A patent by the inventors Kim, Jinsuh (Jeonju-si, KR), Son, Youngbum (Jeonju-si, KR), filed on February 7, 2018, was published online on October 19, 2021, according to news reporting originating from Alexandria, Virginia, by NewsRx correspondents.
Patent number 11150490 is assigned to Park Yong Chul (Incheon, South Korea).
The following quote was obtained by the news editors from the background information supplied by the inventors: “The present invention relates to eyeglasses for an image display device, and more specifically, to a distance vision-realizing eyeglasses for an image display device which assists in reliving eye fatigue by enabling realization of distance vision by using double convex lenses.
“As the use of personal computer and smartphones is increasing, interest in visual display terminal (VDT) syndrome is growing. VDT syndrome refers to a health disorder including eye symptoms (eye strain, medial strabismus, etc.), musculoskeletal symptoms (shoulder pain, back pain, etc.), and psychological symptoms (anxiety, neurosis, insomnia, etc.), which are caused by long hours of using a computer as mobile devices and computers are proliferated and the Internet has become popular. The seriousness of this syndrome has led to legislation of the VDT work regulations in the U.S., establishment of the VDT task force under the government in Japan, and establishment of Industrial Accident Compensation Insurance Act by the Korean Ministry of Labor, which adds VDT syndrome to occupational accidents for which a temporary incapacity benefit and an accidental compensation can be paid.
“According to the Korean Health Insurance Review and Assessment Service, the number of patients with VDT syndrome in 2014 totaled 9.67 million. In other words, one in 3 to 4 Koreans has VDT syndrome. The smartphone user penetration rate in Korea is 83%, the average daily hours of smartphone use is over 3 hours and 30 minutes, and many have medial strabismus symptoms of VDT syndrome.
“Korean Patent Registration No. 10-1598110 titled “Goggles for Image Display Having Specific Structure Newton Lens” is disclosed as technology for improving eye symptoms (eye fatigue, medial strabismus, etc.) of the VDT syndrome. Effects of the prior art can be confirmed in an experiment for improving VDT syndrome. The goggles equipped with a Newtonian lens for image display adopts a single lens scheme in which a pair of Newtonian lenses disposed in front of the eyes move back and forth to enable realization of distance vision.
“However, the googles equipped with a Newtonian lens for image display has the following drawbacks. First, distance vision is implemented by adopting a single-lens method, and hence there is a limitation in increasing distance vision effect with the single Newtonian lens. In addition, the googles have a structure that enables a pair of Newtonian lenses to move back and forth, and hence impurities or dust may be caught in the eye and a lens movement operating part. Next, in order to move the pair of Newtonian lenses forward and backward, there is a structural disadvantage in that not only the Newtonian lens but also a lens housing surrounding the Newtonian lens has to be simultaneously moved. As a result, the center of gravity of the googles for image display is greatly changed according to the movement of the Newtonian lens, and thus the sensation of wearing goggles for image display may be deteriorated. Also, a large amount of a force of a motor, which is a power source, is required to simultaneously move the housing surrounding the Newtonian lens and vibration and noise may be generated by friction.
“Accordingly, an objective of the present invention is to provide distance vision-realizing eyeglasses for an image display device which assist in relieving eye fatigue by enabling realization of distance vision by using double lenses.
“Another objective of the present invention is to provide distance vision-realizing eyeglasses for an image display device which are capable of minimizing the shift of the center of gravity caused by forward and backward movement of a lens.
“Still another objective of the present invention is to provide distance vision-realizing eyeglasses for an image display device which allow lenses to stably move back and forth.
“To achieve the above-described objectives, the present invention provides distance vision-realizing eyeglasses for an image display device including a case, a double convex lens assembly, and a driving part. The case surrounds an eye area of a wearer and includes a pair of lens housing mounting holes formed in front thereof. The double convex lens assembly includes a pair of lens housings and a pair of double convex lenses. The pair of lens housings are respectively mounted in the pair of lens housing mounting holes of the case. The pair of double convex lenses are respectively provided in the pair of lens housings on a front straight line of both eyes of the wearer. Among the pair of the double convex lenses, an outer convex lens positioned on an outer side is fixed to the lens housing and an inner convex lens positioned inside the lens housing is mounted movably forward and backward, thereby enabling realization of distance vision. In addition, the driving part is installed between the pair of lens housings and moves a pair of inner convex lenses of the double convex lens assembly.
“Each of the pair of lens housings may include an outer housing body which has a tubular shape and includes a guide slot formed on a side facing the other lens housing, along a movement direction of the inner convex lens and an outer cap which fixes the outer convex lens position on a front surface of the outer housing body to the outer housing body.
“The guide slot may be formed on a center line that connects centers of a pair of outer housing bodies.
“The double convex lens assembly may further include a connection frame connects the pair of inner convex lenses respectively mounted in the pair of lens housings through the guide slots of the pair of lens housings.
“The connection frame may include a pair of inner housings which are positioned inside the pair of lens housings, have the pair of inner convex lenses, and are installed movably inside the pair of lens housings and a connecting rod which connects the pair of inner housings through the guide slots of the pair of lens housings.
“Each of the pair of inner housings may include an inner housing body which has a tubular shape, moves along an inside of the outer housing body, and is shorter than the outer housing body and an inner cap which fixes the inner convex lens positioned on a front surface of the inner housing body to the inner housing body.
“The outer housing body may have a locking protrusion formed therein which restricts movement of the inner housing body to the outer convex lens.
“The locking protrusion may be formed at a position which allows the outer convex lens and the inner convex lens to be spaced apart from each other when the inner housing body is in contact with the locking protrusion.
“The inner convex lens may move up to 15 to 30 mm with respect to the outer convex lens.
“The driving part may include a motor mount installed between the pair of lens housings, a motor fixed to the motor mount, a drive shaft having one end connected to the motor to transfer a driving force to the connecting rod, thereby moving the pair of outer convex lens, and a shaft bearing supporting the other end of the drive shaft.
“The drive shaft may be installed orthogonally to the connecting rod and the connecting rod may move linearly according to rotation of the drive shaft, thereby moving the pair of outer convex lenses.
“The driving part may operate in a wireless control manner.
“According to the present invention, by using convex lenses as double lenses, a greater distance vision effect is achieved as compared to using a single Newtonian lens, thereby more effectively assisting in relieving eye fatigue.
“A structure in which an inner lens moves back and forth in a state in which an outer lens is secured at a fixed position is provided, and hence shift of the center of gravity due to the forward and backward movement of the lens can be minimized.
“In addition, weight of parts that move along with forward and backward movement of an inner convex lens can be reduced, so that the forward and backward movement of the lens can be more stably performed. That is, a moving method of the inner convex lens can use a low-power motor as compared to a method of using a single Newtonian lens, and hence it is possible to suppress the generation of vibration or noise caused by driving of the motor.”
In addition to the background information obtained for this patent, NewsRx journalists also obtained the inventors’ summary information for this patent: “In the following description of the present invention, a detailed description is provided only to assist in gaining a comprehensive understanding of the present invention, and it is apparent to those skilled in the art a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.
“Here, the technical terms and words used in the specification and claims must not be interpreted according to limited definitions thereof, such as ordinary or dictionary meanings, but must be understood to represent meanings and concepts corresponding to the technical scope and spirit of the invention. Thus, those skilled in the art will appreciate that the construction of the embodiments and drawings of the invention have been disclosed as that of preferred embodiments, and thus various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
“Hereinafter, an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.”
The claims supplied by the inventors are:
“1. Distance vision-realizing eyeglasses for an image display device for relieving eye fatigue, the distance vision-realizing eyeglasses comprising: a case which surrounds a region of both eyes of a wearer of the eyeglasses and has a pair of lens housing mounting holes formed in front thereof and an opening portion formed at a rear thereof which is in contact with the region of both eyes and a face surface, and which has a predetermined width of a space between the opening portion and the holes; a pair of lens housings which are respectively mounted in front of the pair of lens housing mounting holes of the case; a pair of double convex lenses which are respectively provided in the pair of lens housings on a front straight line of both eyes of the wearer; an outer convex lens pair which is positioned on an outer side among the pair of the double convex lenses and is fixed to the lens housing; an inner convex lens pair which is positioned inside the lens housing and is mounted movably forward and backward; a double convex lens assembly which is formed by including the lens housings, double convex lenses, the outer convex lens pair, and the inner convex lens pair and enables realization of distance vision; a driving part which is installed between the pair of lens housings and moves a pair of inner convex lenses of the double convex lens assembly; and an outer housing body which is included in each of the pair of lens housings, has a tubular shape, and includes a guide slot formed on a side facing the other lens housing in the pair of the lens housings to guide the inner convex lens to a movement direction during movement of the inner convex lens, wherein the outer convex lens pair and the inner convex lens pair are arranged such that centers of the lenses coincide.
“2. The distance vision-realizing eyeglasses of claim 1, wherein each of the pair of lens housings includes an outer cap which fixes the outer convex lens position on a front surface of the outer housing body to the outer housing body.
“3. The distance vision-realizing eyeglasses of claim 2, wherein the guide slot is formed on a center line that connects centers of a pair of outer housing bodies.
“4. The distance vision-realizing eyeglasses of claim 2, wherein the double convex lens assembly further includes a connection frame connects the pair of inner convex lenses respectively mounted in the pair of lens housings through the guide slots of the pair of lens housings.
“5. The distance vision-realizing eyeglasses of claim 4, wherein the connection frame includes a pair of inner housings which are positioned inside the pair of lens housings, have the pair of inner convex lenses, and are installed movably inside the pair of lens housings and a connecting rod which connects the pair of inner housings through the guide slots of the pair of lens housings.
“6. The distance vision-realizing eyeglasses of claim 5, wherein each of the pair of inner housings includes an inner housing body which has a tubular shape, moves along an inside of the outer housing body, and is shorter than the outer housing body and an inner cap which fixes the inner convex lens positioned on a front surface of the inner housing body to the inner housing body.
“7. The distance vision-realizing eyeglasses of claim 6, wherein the outer housing body includes a locking protrusion formed therein which restricts movement of the inner housing body to the outer convex lens.
“8. The distance vision-realizing eyeglasses of claim 7, wherein the locking protrusion is formed at a position which allows the outer convex lens and the inner convex lens to be spaced apart from each other when the inner housing body is in contact with the locking protrusion.
“9. The distance vision-realizing eyeglasses of claim 8, wherein the inner convex lens moves up to 15 to 30 mm with respect to the outer convex lens.
“10. The distance vision-realizing eyeglasses of claim 5, wherein the driving part includes a motor mount installed between the pair of lens housings, a motor fixed to the motor mount, a drive shaft having one end connected to the motor to transfer a driving force to the connecting rod, thereby moving the pair of outer convex lens, and a shaft bearing supporting the other end of the drive shaft.
“11. The distance vision-realizing eyeglasses of claim 10, wherein the drive shaft is installed orthogonally to the connecting rod and the connecting rod moves linearly according to rotation of the drive shaft, thereby moving the pair of outer convex lenses.
“12. The distance vision-realizing eyeglasses of claim 11, wherein the driving part operates in a wireless control manner.”
URL and more information on this patent, see: Kim, Jinsuh. Distance vision-realizing eyeglasses for image display device. U.S. Patent Number 11150490, filed February 7, 2018, and published online on October 19, 2021. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=11150490.PN.&OS=PN/11150490RS=PN/11150490
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