WO2018201179A1

WO2018201179A1 - Eyewear

Info

Publication number: WO2018201179A1
Application number: PCT/AU2017/050414
Authority: WO
Inventors: Wei LIEJIANG
Original assignee: Just Smart Hong Kong Limited
Priority date: 2017-05-05
Filing date: 2017-05-05
Publication date: 2018-11-08

Abstract

The invention is directed to eyewear that reduces transmission of light that represses melatonin secretion. The eyewear having at least one lens that has stacked on one face thereof a first layer of SiO2 having a thickness of 0.8 nm to 1.6 nm, a second layer of Ti3O5 having a thickness of 25 nm to 28 nm, a third layer of Ti3O5 having a thickness of 37 nm to 40 nm, a fourth layer of Ti3O5 having a thickness of 56 nm to 267 nm, and a fifth layer of SiO2 having a thickness of 127 nm to 131 nm. Stacked on the second opposite face of the lens is a seventh layer of SiO2 having a thickness of 0.8 nm to 1.6 nm; an eighth layer of ZrO2 having a thickness of 83 nm to 289 nm, a ninth layer of ZrO2 having a thickness of 125 nm to 127 nm, a tenth layer of Ti3O5 having a thickness of 54 nm to 57 nm, and an eleventh layer of SiO2 having a thickness of 46 nm to 49 nm. The eyewear can also have sixth and twelfth layers adjacent to the fifth and eleventh layers respectively that are anti-reflective layers with a thickness of substantially 1.6 nm.

Description

EYEWEAR

FIELD OF INVENTION

The present invention relates to eyewear that reduces the transmission of particular wavelengths of light. Reference will be made in the specification to the use of the invention when a person views an electronic screen prior to sleep. The patent specification describes this use but it is by way of example only and the invention is not limited to this use. BACKGROUND OF THE INVENTION

According to statistics from the World Association of Sleep Medicine (WASM), more than a third of people around the world suffer from serious sleep disorders. One of the major external factors that influences the quality of sleep is light. An increase in the use of artificial lights, and screens of mobile devices, computers and televisions emitting artificial light has led to an increase in sleep disorders.

In the human body, the secretion of melatonin by the pineal gland strongly influences the day-night rhythm and seasonal rhythm. Melatonin production is stimulated by darkness and inhibited by light. Light sensitive nerve cells in the retina detect light and the registration of light by the light sensitive nerve cells affects the signals sent to the pineal gland and the amount of melatonin produced and secreted. Under normal conditions, the pineal gland secrets melatonin by night when it is dark to promote sleep and ceases or reduces secreting melatonin by day when it is light. When a person is exposed to artificial light, the melatonin production is inhibited.

Prior art solutions to reducing the incidents of sleep disorders include taking melatonin supplements and not using artificial light, and watching screens of mobile devices, computers and televisions prior to going to bed.

OBJECT OF THE INVENTION

It is an object of the present invention to overcome or at least alleviate one or more of the above mentioned problems and/or provide the consumer with a useful or commercial choice. SUMMARY OF THE INVENTION

The inventor realised that particular wavelengths of light affected the sleepiness of a person and used experimentation to identify the particular wavelength and ways to prevent or limit the light of these wavelengths from reaching the eye of a person. The inventor determined that using wearable eyewear was the most efficient way to prevent the light of particular wavelengths from entering a person's eye. The inventor experimented with different coatings on the eyewear until they were satisfied that the determined coatings largely inhibited wavelengths of light that inhibits melatonin secretion.

In one aspect, the present invention broadly resides in eyewear having at least one lens, each of the at least one lens having

a first layer of S1O2 having a thickness of 0.8nm to 1 .6nm ;

a second layer of T13O5 having a thickness of 25 to 28nm;

a third layer of T13O5 having a thickness of 37 to 40nm;

a fourth layer of T13O5 having a thickness of 56nm to 267nm; and

a fifth layer of S1O2 having a thickness of 127 to 131 nm.

Preferably the first layer, the second layer, the third layer, the fourth layer and the fifth layer are located on a first side of the at least one lens. The first side is preferably the outside surface furthest from the eye when the eyewear is worn.

The thickness of the various layers preferably allows transmission of 10 to

35% of light in the 400nm to 520nm wavelength spectral range, 35 to 96% of light in the 540nm to 569nm wavelength spectral range, 92 to 97% of light in the 570nm to 600nm wavelength spectral range and 88 to 93% of light in the 600 to 700nm wavelength spectral range.

Preferably the second layer of T13O5 has a thickness of substantially 26.25nrm.

Preferably the third layer of T13O5 has a thickness of substantially 38.13nm. Preferably the fifth layer of S1O2 has a thickness of substantially 129.59nm.

Preferably the first layer reflects or blocks light having a wavelength of around 420nm. More preferably the first layer reflects or blocks light having a wavelength of substantially 420nm. Preferably the second layer reflects or blocks light having a wavelength of around 440nm. More preferably the second layer reflects or blocks light having a wavelength of substantially 440nm. Preferably the third layer reflects or blocks light having a wavelength of around 460nm. More preferably the third layer reflects or blocks light having a wavelength of substantially 460nm. Preferably the fourth layer reflects or blocks light having a wavelength of around 509nm. More preferably the fourth layer reflects or blocks light having a wavelength of substantially 509nm. Preferably the fifth layer reflects or blocks light having a wavelength of around 509nm. More preferably the fifth layer reflects or blocks light having a wavelength of substantially 509nm.

It will be appreciated that the term reflects or blocks does not require all of the light in a particular wavelength to be reflected or blocked, instead, the term reflects or blocks only requires a portion of light in a particular wavelength to be reflected or blocked.

Preferably the first layer is adjacent the lens. Preferably the second layer is adjacent the first layer. Preferably the third layer is adjacent the second layer. Preferably the fourth layer is adjacent the third layer. Preferably the fifth layer is adjacent the fourth layer.

Preferably each of the at least one lens further has an anti-reflective layer on the first side. Preferably the anti-reflective layer on the first side has a thickness of substantially 1 .6nm. Preferably the anti-reflective layer on the first side is adjacent to the fifth layer. Preferably the anti-reflective layer on the first side is a sixth layer. Preferably the sixth layer is on the outside of the first side.

Preferably each of the at least one lens has a seventh layer of S1O2 having a thickness of 0.8nm to 1 .6nm. Preferably the seventh layer reflects or blocks light having a wavelength of around 420nm. More preferably the seventh layer reflects or blocks light having a wavelength of substantially 420nm. Preferably the seventh layer is located on a second side of the respective lens. Preferably the seventh layer is adjacent the lens.

Preferably each of the at least one lens has an eighth layer of Zr02 having a thickness of 83nm to 289nm. Preferably the eighth layer reflects or blocks light having a wavelength of around 440nrm. More preferably the eighth layer reflects or blocks light having a wavelength of substantially 440nm. Preferably the eighth layer is located on a second side of the respective lens. Preferably the eighth layer is adjacent the seventh layer.

Preferably each of the at least one lens has a ninth layer of Zr02 having a thickness of 125 to 127nm. Preferably the ninth layer of Zr02 has a thickness of substantially 126nm. Preferably the ninth layer reflects or blocks light having a wavelength of around 440nm. More preferably the ninth layer reflects or blocks light having a wavelength of substantially 440nm. Preferably the ninth layer is located on a second side of the respective lens. Preferably the ninth layer is adjacent the eighth layer.

Preferably each of the at least one lens has a tenth layer of ΪΊ3Ο5 having a thickness of 54 to 57nm. Preferably the tenth layer of T13O5 has a thickness of substantially 55.65nm. Preferably the tenth layer reflects or blocks light having a wavelength of around 509nm. More preferably the tenth layer reflects or blocks light having a wavelength of substantially 509nm. Preferably the tenth layer is located on a second side of the respective lens. Preferably the tenth layer is adjacent the ninth layer.

Preferably each of the at least one lens has an eleventh layer of S1O2 having a thickness of 46 to 49nm. Preferably the eleventh layer of S1O2 has a thickness of substantially 47.12nm. Preferably the eleventh layer reflects or blocks light having a wavelength of around 650nm. More preferably the eleventh layer reflects or blocks light having a wavelength of substantially 650nm. Preferably the eleventh layer is located on a second side of the respective lens. Preferably the eleventh layer is adjacent the tenth layer.

Preferably each of the at least one lens further has an anti-reflective layer on a second side. Preferably the anti-reflective layer on the second side has a thickness of substantially 1 .6nm. Preferably the anti-reflective layer on the second side is adjacent to the eleventh layer. Preferably the anti-reflective layer on the second side is a twelfth layer.

Preferably the at least one lens allows transmission of 10 to 35% of light in the 400nm to 520nm wavelength spectral range. Preferably the eyewear allows transmission of 35 to 96% of light in the 540nm to 569nrm wavelength spectral range. Preferably the eyewear allows transmission of 92 to 97% of light in the 570nm to 600nm wavelength spectral range. Preferably the eyewear allows transmission of 88 to 93% of light in the 600 to 700nm wavelength spectral range.

Preferably the layers are vacuum coated onto the lens or an adjacent layer. In another embodiment the layers are electron coated onto the lens or an adjacent layer. It will be appreciated that other thin film deposition methods may be used to create the layers. Preferably the layers are coating layers.

In one embodiment, the layers or at least some of the layers are located between two lenses. Preferably the eyewear is eyeglasses.

Preferably the at least one lens is two lenses.

In one embodiment the at least one lens is a corrective lens. Preferably the corrective lens is a prescription lens.

Preferably each of the at least one lens is made from transparent nylon. In another embodiment, each of the at least one lens can be made from glass or polycarbonate (PC).

In one embodiment, the eyewear can clip onto prescription glasses.

In another aspect, the present invention broadly resides in eyewear having at least one lens, each of the at least one lens having

a first layer of S1O2 having a thickness of 0.8nm to 1 .6nm;

a second layer of T13O5 having a thickness of substantially 26.25nm;

a third layer of T13O5 having a thickness of substantially 38.13nm;

a fourth layer of T13O5 having a thickness of 56nm to 267nm;

a fifth layer of S1O2 having a thickness of substantially 129.59nm;

a seventh layer of S1O2 having a thickness of 0.8nm to 1 .6nm;

an eighth layer of Zr02 having a thickness of 83nm to 289nm;

a ninth layer of Zr02 having a thickness of substantially 126nm;

a tenth layer of T13O5 having a thickness of substantially 55.65nm ; and an eleventh layer of S1O2 having a thickness of substantially 47.12nm.

Preferably the first layer, the second layer, the third layer, the fourth layer and the fifth layer are located on a first side of the at least one lens.

Preferably the seventh layer, the eighth layer, the ninth layer, the tenth layer and the eleventh layer are located on a second side of the at least one lens.

The thickness of the various layers preferably allows transmission of 10 to

In a further aspect, the present invention broadly resides in eyewear having at least one lens, each of the at least one lens having

a seventh layer of S1O2 having a thickness of 0.8nm to 1 .6nm;

an eighth layer of Zr02 having a thickness of 83nm to 289nm;

a ninth layer of Zr02 having a thickness of substantially 126nm ; a tenth layer of T13O5 having a thickness of substantially 55.65nm ; and an eleventh layer of S1O2 having a thickness of substantially 47.12nm.

Preferably each of the at least one lens further has a first layer of S1O2 having a thickness of 0.8nm to 1 .6nm. Preferably each of the at least one lens further has a second layer of T13O5 having a thickness of substantially 26.25nm. Preferably each of the at least one lens further has a third layer of T13O5 having a thickness of substantially 38.1 3nm. Preferably each of the at least one lens further has a fourth layer of T13O5 having a thickness of 56nm to 267nm. Preferably each of the at least one lens further has a fifth layer of S1O2 having a thickness of substantially 1 29.59nm.

The features described with respect to one aspect also apply where applicable to all other aspects of the invention. Furthermore, different combinations of described features are herein described and claimed even when not expressly stated. For example, the layers do not need to be in a sequential order. Furthermore the naming of the layers does not require the eyewear to have a specific number of layers. For example the eleventh layer does not require the eyewear to have eleven layers.

BRIEF DESCRIPTION OF THE DRAWINGS

In order that the present invention can be more readily understood reference will now be made to the accompanying drawings which illustrate a preferred embodiment of the invention and wherein:

Figure 1 is an exploded schematic view of a lens of eyewear according to an embodiment of the present invention ;

Figure 2 is a transmitted spectrum graph of the lens of the eyewear of Figure

1 ; and

Figure 3 is a table of spectroscopic data of the lens of the eyewear of Figure

1 . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

With reference to Figure 1 there is shown an exploded schematic view of a lens 13 of eyewear according to a preferred embodiment of the present invention.

The lens 13 is made of nylon. The lens has a fist side 14 and a second side

15. The lens 13 has a number of layers 1 ,2,3,4,5,6 vacuum coated on the first side 14. A first layer 1 of S1O2 is vacuum coated directly onto the first side 14 of the lens 13. The first layer 1 has a thickness of 0.8nm to 1 .6nm and reflects or blocks light having a wavelength of around 420nm. A second layer 2 of T13O5 is vacuum coated onto the first layer 1 . The second layer 2 has a thickness of substantially 26.25nm and reflects or blocks light having a wavelength of around 440nrm. A third layer 3 of T13O5 is vacuum coated onto the second layer 2. The third layer 3 has a thickness of substantially 38.13nm and reflects or blocks light having a wavelength of around 460nm. A fourth layer 4 of T13O5 is vacuum coated onto the third layer 3. The fourth layer 4 has a thickness of 56nm to 267nm and reflects or blocks light having a wavelength of around 509nm. A fifth layer 5 of S1O2 is vacuum coated onto the fourth layer 4. The fifth layer 5 has a thickness of substantially 129.59nm and reflects or blocks light having a wavelength of around 509nm. A sixth layer 6 of anti- reflective material is vacuum coated onto the fifth layer 5. The sixth layer 6 has a thickness of substantially 1 .6nrm.

The lens 13 also has a number of layers 7,8,9,10,1 1 ,12 vacuum coated on the second side 1 5. A seventh layer 7 of S1O2 is vacuum coated directly onto the second side 15 of the lens 13. The seventh layer 7 has a thickness of 0.8nm to 1 .6nm and reflects or blocks light having a wavelength of around 420nm. An eighth layer 8 of Zr02 is vacuum coated onto the seventh layer 7. The eighth layer 8 has a thickness of 83nm to 289nm and reflects or blocks light having a wavelength of around 440nm. A ninth layer 9 of Zr02 is vacuum coated onto the eighth layer 8. The ninth layer 9 has a thickness of substantially 126nm and reflects or blocks light having a wavelength of around 440nm. A tenth layer 10 of T13O5 is vacuum coated onto the ninth layer 9. The tenth layer 1 0 has a thickness of substantially 55.65nm and reflects or blocks light having a wavelength of around 509nm. An eleventh layer 1 1 of S1O2 is vacuum coated onto the tenth layer 10. The eleventh layer 1 1 has a thickness of substantially 47.12nm and reflects or blocks light having a wavelength of around 650nm. A twelfth layer 1 2 of anti-reflective material is vacuum coated onto the eleventh layer 1 1 . The twelfth layer 1 2 has a thickness of substantially 1 .6nm.

The eyeball 16 is used to show the relative position of the layers 1 ,2,3,4,5,6,7,8,9,10,1 1 ,12 to the eyeball 16 when the eyewear is worn by a user.

With reference to Figures 2 and 3 there is shown a graph 20 of transmittance of light 22 versus the wavelength of light 24 as well as a table 30 showing the transmittance of light 32 for various wavelength of light 34, for eyewear according to the preferred embodiment of the present invention.

In use, a user can wear the eyewear while using mobile devices, computers or watching TV prior to going to sleep to stimulate the production of melatonin.

EXPERIMENTAL

Experiment 1 :

Material and methods:

Eyewear (spectacles) having vacuum coating on both sides of non-coated lens, the 1 st layer of obverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 0.79nm; the 2nd layer is T13O5 while reflection wavelength setting at 440nm and coating thickness at 26.25nm; the 3rd layer is T13O5 while reflection wavelength setting at 460nm and coating thickness at 38.13nm; the 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 55.99nm; the 5th layer is S1O2 while reflection wavelength setting at 509nm and coating thickness at 129.59nm; the 6th layer is an Anti- reflective coating while coating thickness setting at 1 .6nm. The 1 st layer of reverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 0.7996nm. The 2nd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 82.396nm. The 3rd layer is ZrCh while reflection wavelength setting at 440nm and coating thickness at 1 26nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 55.65nm. The 5th layer is S1O2 while reflection wavelength setting at 650nm and coating thickness at 47.12nm.

The researchers chose ten subjects (5 males and 5 females at age between

22~65) to respectively stay in rooms with closed window and no noises interference, using LED energy saving lamp as illumination, temperature setting at 1 6~25°C. The room was equipped with table, chair and bed. The subjects wore spectacles for one hour at 10a.m., 3p.m. and 1 0p.m.. The subjects wore the spectacles while they watched cellphone, IPAD, television or computer.

Results:

No one felt sleepy. After tested by Agilent 6410 Triple Quad LC/MS Liquid Chromatogram-mass spectrum construed instrument on concentration of melatonin in saliva, the data of ten subjects showed no obvious change compared to that of previous day.

Experiment 2:

Material and methods:

Eyewear (spectacles) having vacuum coating on both sides of non-coated lens, the 1 st layer of obverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 0.8nm. The 2nd layer is T13O5 while reflection wavelength setting at 440nm and coating thickness at 26.25nm. The 3rd layer is T13O5 while reflection wavelength setting at 460nm and coating thickness at 38.13nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 56nm. The 5th layer is S1O2 while reflection wavelength setting at 509nm and coating thickness at 1 29.59nm. The 6th layer is an anti-reflective coating with a coating thickness setting at 1 .6nm. The 1 st layer of reverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 0.8nm . The 2nd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 83nm. The 3rd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 126nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 55.65nm. The 5th layer is S1O2 while reflection wavelength setting at 650nm and coating thickness at 47.12nm. The 6th layer is an anti-reflective coating with a coating thickness setting at 1 .6nm.

Results:

The subjects felt comfortable with the coated lenses. The experiment was tested on the same ten subjects, under same methods and procedures with Experiment 1 . Three subjects felt sleepy at 22:30, 22:45 and 22:55, their concentration of melatonin in saliva was increased compared to that of the previous day. The others had no obvious change.

Experiment 3

Material and methods:

Eyewear (spectacles) having vacuum coating on both sides of non-coated lens, the 1 st layer of obverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 1 .2nm. The 2nd layer is T13O5 while reflection wavelength setting at 440nm and coating thickness at 26.25nm. The 3rd layer is T13O5 while reflection wavelength setting at 460nm and coating thickness at 38.13nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 93.12nm. The 5th layer is S1O2 while reflection wavelength setting at 509nm and coating thickness at 129.59nm. The 6th layer is an anti- reflective coating with a coating thickness setting at 1 .6nm. The 1 st layer of reverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 0.8nm. The 2nd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 1 16nm. The 3rd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 1 26nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 55.65nm. The 5th layer is S1O2 while reflection wavelength setting at 650nm and coating thickness at 47.12nm. The 6th layer is an anti-reflective coating with a coating thickness setting at 1 .6nm.

Results:

The transmitted spectrum of the coated lenses is shown in Figures 2 and 3. The subjects felt comfortable with the coated lenses. The experiment was tested on the same ten subjects, under same methods and procedures with Experiment 1 . Two subjects felt sleepy at 10:20a.m. and 10:35a.m., and their concentration of melatonin in their saliva had increased compared to that of the previous day. Three subjects felt sleepy at 15:15, 15:36, 15:50, and their concentration of melatonin in their saliva had increased compared to that of the previous day. The other two subjects had no obvious change. Experiment 4

Material and methods:

Eyewear (spectacles) having vacuum coating on both sides of non-coated lens, the 1 st layer of obverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 1 .6nm. The 2nd layer is T13O5 while reflection wavelength setting at 440nm and coating thickness at 26.25nm. The 3rd layer is T13O5 while reflection wavelength setting at 460nm and coating thickness at 38.13nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 267.23nm. The 5th layer is S1O2 while reflection wavelength setting at 509nm and coating thickness at 129.59nm. The 6th layer is an anti- reflective coating while coating thickness setting at 1 .6nm. The 1 st layer of reverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 1 .6nm. The 2nd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 289nm. The 3rd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 1 26nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 55.65nm. The 5th layer is S1O2 while reflection wavelength setting at 650nm and coating thickness at 47.12nm. The 6th layer is an anti-reflective coating and coating thickness setting at 1 .6nm.

Results:

The lens coatings caused large aberrations. Two subjects felt dizzy after wearing the spectacles, and the experiment was discontinued.

Experiment 5

Material and methods:

Eyewear (spectacles) having vacuum coating on both sides of non-coated lens, the 1 st layer of obverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 1 .61 nm. The 2nd layer is T13O5 while reflection wavelength setting at 440nm and coating thickness at 26.25nm. The 3rd layer is T13O5 while reflection wavelength setting at 460nm and coating thickness at 38.13nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 267.23nm. The 5th layer is S1O2 while reflection wavelength setting at 509nm and coating thickness at 129.59nm. The 6th layer is an anti- reflective coating with a coating thickness setting at 1 .6nm. The 1 st layer of reverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 1 .61 nm. The 2nd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 289.1 26nm. The 3rd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 1 26nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 55.65nm. The 5th layer is S1O2 while reflection wavelength setting at 650nm and coating thickness at 47.12nm. The 6th layer is an anti-reflective coating with a coating thickness setting at 1 .6nm.

Results: The lens coatings caused large aberrations. No one felt dizzy after wearing the eyewear. Researchers chose one subject to do further test under the procedures of Experiment 1 , the subject felt sleepy at 10:35a.m., 15:20 and 22:45. No detection on concentration of melatonin.

Further experiment:

Material and methods:

Eyewear (spectacles) having vacuum coating on both sides of non-coated lens, the 1 st layer of obverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 0.8~1 .6nm. The 2nd layer is T13O5 while reflection wavelength setting at 440nm and coating thickness at 26.25nm. The 3rd layer is T13O5 while reflection wavelength setting at 460nm and coating thickness at 38.13nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 56~267nm. The 5th layer is S1O2 while reflection wavelength setting at 509nm and coating thickness at 129.59nm. The 6th layer is an anti- reflective coating with a coating thickness setting at 1 .6nm. The 1 st layer of reverse side is S1O2 while reflection wavelength setting at 420nm and coating thickness at 0.8~1 .6nm. The 2nd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 83~289nm. The 3rd layer is Zr02 while reflection wavelength setting at 440nm and coating thickness at 1 26nm. The 4th layer is T13O5 while reflection wavelength setting at 509nm and coating thickness at 55.65nm. The 5th layer is S1O2 while reflection wavelength setting at 650nm and coating thickness at 47.12nm. The 6th layer (12) is an anti-reflective coating with a coating thickness setting at 1 .6nm.

Results:

Researchers randomly selected three coatings among these sections and proceeded under the same method with Experiment 1 , received certain effects. During all above experiments, subjects had no dry eye, dizziness or other sense of discomfort while using cellphones, computers and IPAD.

Testing of the preferred embodiment:

The experiment is divided into four parts: prevention of insomnia, eye- protection, therapy or adjuvant therapy of insomnia, reduce jet lag, biological rhythms adjustment. Sources of testing subjects: volunteer, hospital recommended.

Occupation of testing subjects: student, teacher, office worker, civil servant, scientific worker, medial worker, pilot, financial worker, etc.

Symptom of testing subjects: no insomnia 40%, light insomnia 50%, serious insomnia 2%, trans-time zone business people 2%, night shift workers 6%.

Sex distribution of testing subjects: 2400 males and 2600 females.

Age distribution of testing subjects: age 12-18, 500 individuals; age 1 9-30, 1000 individuals; age 31 -45, 1000 individuals; age 46-65, 2000 individuals; age 66-75, 500 individuals.

Nationality of testing subjects: 4892 Chinese; 1 German; 2 Australians; 50

Canadians; 50 Americans; 3 Italians.

Testing product model and number: HBY5601 -9 5000 spectacles.

Testing time: May 12th, 2015 to August 12th, 2015

Testing Method: testing subjects wear the spectacles according to their own conditions and kept a record of effects. After continuous use for one month, users completed and returned feedback forms.

Usage:

I. Protect eyes, improve sleep quality, prevent sleep disorders (including those who use cellphone or play IPAD by night, potential sleep disorders, sleep procrastination, etc.)

Wear the spectacles while using cellphone, IPAD, computer and watching TV by night, when feeling sleepy, take off the spectacles, turn off light and other electronic equipments and go to sleep.

II. Improve (ease) insomnia, aid therapy for insomnia (potential, light, medium and serious sleep disorders)

Wear the spectacles 1 -3 hours before sleep (or 2 hours after sunset), under illumination (including light from cellphone, IPAD, etc), when feeling sleepy, take off the spectacles, turn off light and other electronic equipment and go to sleep.

III. Improve jet lag (international trans-regional business person)

1 -3 days before leaving, user can adjust in accordance with time conversion table as below, sleep or awake ahead (or delay) 2-6 hours every day according to time difference between departure and arriving place. Sleep and awake time advanced if fly eastward; Sleep and awake time delayed if fly westward. When on board and arrive at the destination, user can rest according to destination time schedule and wear the spectacles as usage II before sleep. During waking period, keep enough illumination and watch high light cellphone, IPAD and other electronics as much as possible.

IV. Adjust or recover biological rhythms (shift and night shift workers) Night shift workers who need to have sound sleep at daytime and work by night, can use illumination which is rich in light spectrum restraining the secretion of melatonin by human body (such as LED light). The user can turn on lights, wear the spectacles under light circumstances after work (Attention: do not wear the spectacles while driving nor doing job that needs high concentrated energy). No light or illumination during sleep.

When night work shift to day work, user should adjust their circadian rhythms in accordance with outside day-night environment. The way of adjustment should be in line with the time period of continuous night work. We suggest users to adopt a method in a gradual way and conform to their self condition. Users can go to sleep or wake up 2~6 hours before or after normal schedule until keep pace with outside environment. During the adjustment period, users can wear the spectacles for 0.5-3 hours in light environment and turn off the electronic equipment and other lights, take off the spectacles and go to sleep when feeling sleepy.

Test result:

No adverse reaction or other side effects happened on testing subjects during the process of experiment.

Table of results:

. Category Symptom Before Use After Use Statements

Using Dry eyes, sour 1452 test All symptoms Asymptomatic cellphone, eyes, subjects have disappeared. persons

IPAD dizziness, etc. these symptoms. before use

(computer) light sleep, 1 765 subjects 1695 (96%) said no side and other dreaminess, have these subjects effect electric restless sleep, symptoms symptoms occurred after equipment difficult to fall respectively at disappeared, use. Some by night. asleep, etc. different levels the others subjects felt

(2000 had no sleep individuals) obvious deepened. effects.

Slight light sleep, 2400 subjects 1960 subjects

insomniacs dreaminess, have these (81 %)

(2500 restless sleep symptoms symptoms

individuals obviously

with improved

different difficult to fall 1 721 subjects 1659 subjects

symptoms, asleep (need have this (96%)

partly had 10-40 symptom symptoms

several minutes) obviously

symptoms improved

at one Short sleep 203 subjects 132 subjects

person) time (between have these (65%)

5~7 hours) symptoms symptoms

obviously

improved

heavy- 967 subjects 822 subjects

headedness, have these (85%)

headache, symptoms symptoms

exhausted, obviously

agitated, improved

irritable,

anxious,

depressed etc

when wake up

in the morning

Serious difficult to fall 94 subjects 56 1 subject felt insomniacs asleep (over these symptoms subjects(59%) dizzy at first

(100 30 minutes), can fall use.

individuals) cannot fall asleep quickly Dizziness asleep without without taking disappeared medications, medications; one day later. slight 12 subjects depression can fall

asleep quickly

after reduce

dosage; 26

subjects no

obvious

improvement.

Light sleep, 79 subjects have 42(52%) 3 subjects felt repeatedly these symptoms subjects dizzy at first wake up (more symptoms use.

than 3 times), obviously Dizziness short sleep improved; the disappeared time (less than others had no 2-3 days

5 hours) obvious later.

accompanied effects or

with vague

depression and statement.

anxiety, etc.

International difficult to fall 93 subjects have 92 subjects Those who trans- asleep, jet lag these symptoms had no had no regional obvious symptoms business reaction before use person (100 said no side individuals) effect

occurred during experiment.

Some subjects felt sleep deepened.

Shift difficult to fall 264 subjects 220(83%)

workers asleep by day, have these subjects (300 short sleep symptoms symptoms

individuals) time, low- obviously

quality sleep, improved; the etc. others no

obvious

improvement.

ADVANTAGES

An advantage of the preferred embodiment of the eyewear includes relieving the negative effects of artificial lighting on human sleep. Another advantage of the preferred embodiment of the eyewear includes stimulating the production of melatonin by the pineal gland. A further advantage of the preferred embodiment of the eyewear includes treating insomnia and other sleep disorders. Another advantage of the preferred embodiment of the eyewear includes treating disorders such as anxiety, depression and seasonal affective disorder.

VARIATIONS

It will of course be realised that while the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and ambit of this invention as is herein set forth.

Throughout the description and claims of this specification the word "comprise" and variations of that word such as "comprises" and "comprising", are not intended to exclude other additives, components, integers or steps.

Claims

CLAIMS:

1 . Eyewear having at least one lens, each of the at least one lens having

a first layer of Si02 having a thickness of 0.8nm to 1 .6nm;

a second layer of Ti305 having a thickness of 25 to 28nm;

a third layer of ΊΊ305 having a thickness of 37 to 40nm;

a fourth layer of ΤΊ305 having a thickness of 56nm to 267nm;

a fifth layer of Si02 having a thickness of 127 to 131 nm;

a seventh layer of Si02 having a thickness of 0.8nm to 1 .6nm;

an eighth layer of Zr02 having a thickness of 83nm to 289nm;

a ninth layer of Zr02 having a thickness of 125 to 127nm;

a tenth layer of Ti305 having a thickness of 54 to 57nm; and

an eleventh layer of Si02 having a thickness of 46 to 49nm.

2. Eyewear as claimed in claim 1 , wherein the first layer, the second layer, the third layer, the fourth layer and the fifth layer are located on a first side of the at least one lens, and the seventh layer, the eighth layer, the ninth layer, the tenth layer and the eleventh layer are located on a second side of the at least one lens.

3. Eyewear as claimed in claim 2, wherein each of the at least one lens has an anti-reflective layer on the first side, and wherein the anti-reflective layer on the first side is a sixth layer.

4. Eyewear as claimed in claim 3 wherein the sixth layer has a thickness of substantially 1 .6nm.

5. Eyewear as claimed in claim 2, wherein each of the at least one lens has an anti-reflective layer on the second side, wherein the anti-reflective layer on the second side is a twelfth layer.

6. Eyewear as claimed in claim 5 wherein the twelfth layer has a thickness of substantially 1 .6nm.

7. Eyewear as claimed in any one of the preceding claims, wherein the at least one lens is made from nylon.

8. Eyewear as claimed in any one of the preceding claims, wherein the at least one lens is two lenses.

9. Eyewear as claimed in any one of the preceding claims, wherein the first layer reflects or blocks light having a wavelength of around 420nm, the second layer reflects or blocks light having a wavelength of around 440nrm, the third layer reflects or blocks light having a wavelength of around 460nm, the fourth layer reflects or blocks light having a wavelength of around 509nm, the fifth layer reflects or blocks light having a wavelength of around 509nm, the seventh layer reflects or blocks light having a wavelength of around 420nm, the eighth layer reflects or blocks light having a wavelength of around 440nm, the ninth layer reflects or blocks light having a wavelength of around 440nm, the tenth layer reflects or blocks light having a wavelength of around 509nm and the eleventh layer reflects or blocks light having a wavelength of around 650nm.

10. Eyewear as claimed in any one of the preceding claims, wherein the at least one lens allows transmission of 10 to 35% of light in the 400nm to 520nm wavelength spectral range, 35 to 96% of light in the 540nm to 569nrm wavelength spectral range, 92 to 97% of light in the 570nm to 600nm wavelength spectral range and 88 to 93% of light in the 600 to 700nm wavelength spectral range.

1 1 . Eyewear as claimed in any one of the preceding claims, wherein the layers are vacuum coated onto the at least one lens or an adjacent layer.

12. Eyewear having at least one lens, each of the at least one lens having

a first layer of S1O2 having a thickness of 0.8nm to 1 .6nm;

a second layer of T13O5 having a thickness of 25 to 28nm;

a third layer of ΪΊ3Ο5 having a thickness of 37 to 40nm;

a fourth layer of ΪΊ3Ο5 having a thickness of 56nm to 267nm; and

a fifth layer of S1O2 having a thickness of 127 to 131 nm.

13. Eyewear as claimed in claim 1 2, wherein the first layer, the second layer, the third layer, the fourth layer and the fifth layer are located on a first side of the at least one lens.

14. Eyewear as claimed in claim 13, having a seventh layer of Si02 having a thickness of 0.8nm to 1 .6nm, an eighth layer of Zr02 having a thickness of 83nm to 289nm, a ninth layer of Zr02 having a thickness of substantially 1 26nm, a tenth layer of Ti305 having a thickness of substantially 55.65nm, and an eleventh layer of Si02 having a thickness of substantially 47.12nm.

15. Eyewear as claimed in claim 13, wherein each of the at least one lens has an anti-reflective layer on the first side, and wherein the anti-reflective layer on the first side is a sixth layer having a thickness of substantially 1 .6nrm.

16. eyewear having at least one lens, each of the at least one lens having

a seventh layer of Si02 having a thickness of 0.8nm to 1 .6nm;

an eighth layer of Zr02 having a thickness of 83nm to 289nm;

a ninth layer of Zr02 having a thickness of 125 to 127nrm;

a tenth layer of Ti305 having a thickness of 54 to 57nm; and

an eleventh layer of Si02 having a thickness of 46 to 49nm.

17. Eyewear as claimed in claim 16, wherein the seventh layer, the eighth layer, the ninth layer, the tenth layer and the eleventh layer are located on a second side of the at least one lens.

18. Eyewear as claimed in claim 17, having a first layer of Si02 having a thickness of 0.8nm to 1 .6nm, a second layer of Ti305 having a thickness of substantially 26.25nm, a third layer of Ti305 having a thickness of substantially 38.13nm, a fourth layer of Ti305 having a thickness of 56nm to 267nm, and a fifth layer of Si02 having a thickness of substantially 129.59nm.

19. Eyewear as claimed in claim 17, wherein each of the at least one lens has an anti-reflective layer on the second side, and wherein the anti-reflective layer on the second side is a twelfth layer having a thickness of substantially 1 .6nm.

20. Eyewear as claimed in any one of the preceding claims for stimulating melatonin production.