TWI725719B - 用以抗藍光之眼鏡鏡片材料、眼鏡鏡片及其製程 - Google Patents
用以抗藍光之眼鏡鏡片材料、眼鏡鏡片及其製程 Download PDFInfo
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- TWI725719B TWI725719B TW109102279A TW109102279A TWI725719B TW I725719 B TWI725719 B TW I725719B TW 109102279 A TW109102279 A TW 109102279A TW 109102279 A TW109102279 A TW 109102279A TW I725719 B TWI725719 B TW I725719B
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- Prior art keywords
- silver
- spectacle lens
- mixture
- silica composite
- nano particles
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Abstract
本發明係一種用以抗藍光之眼鏡鏡片材料、眼鏡鏡片及其製程,其中,該眼鏡鏡片材料能用以製作出所需的眼鏡鏡片,其至少包括由銀/氧化矽複合奈米顆粒與至少一種高分子單體所組成之混合物,各該高分子單體經一材料固化程序後能形成一本體,且該本體內混合含有該銀/氧化矽複合奈米顆粒,如此,該眼鏡鏡片材料中的銀/氧化矽複合奈米顆粒便能吸收具有較大能量的藍光,使得其製作出來的隱形眼鏡具有抗藍光效果。
Description
本發明係關於抗藍光之眼鏡鏡片,尤指一種將銀/氧化矽複合奈米顆粒(Ag/SiOx)混合至眼鏡鏡片材料中,以由該眼鏡鏡片材料製作出對應的眼鏡鏡片。
按,隨著液晶螢幕、智慧型手機與平板電腦…等3C產品的普及率愈來愈高,同時,人們使用與觀看3C產品的時間亦愈來愈多的情況下,「藍光傷眼」的問題逐漸為人們所重視,目前來說,「藍光傷眼」的普遍說法有三,一是藍光碰到物體容易散射,造成眼睛視物的影像與清晰度降低,進而導致眼睛疲勞;二是藍光會提高黃斑部病變(age-related macular degeneration,簡稱AMD)和視網膜病變風險;三是藍光會阻礙睡眠,其會延後或停止大腦製造褪黑色素的分泌,進而令人更難進入睡眠狀態。
一般來說,波長介於400 奈米(nm)至700奈米(nm)的光線稱為可見光,其中,波長介於465奈米至495奈米的藍光(或稱藍綠光),具有調整生物節律的作用,但是,波長介於415奈米至455奈米的藍光(或稱藍紫光),則因其波長較短而具有較大能量,故容易穿透人體眼睛角膜和水晶體,且容易產生氧化物、游離自由基,進而對視網膜的感光細胞(錐狀及桿狀細胞、色素上皮細胞)產生傷害,此亦是前述所稱會傷害眼睛的「藍光」。由於3C產品的背光源多半採用紅、綠、藍三色的LED(發光二極體)混合出各種光線,且前述藍光LED往往具備高能量的藍光(藍紫光),因此,長時間使用下,便容易衍生出「藍光傷眼」之相關情況。
鑑於前述問題,有越來越多人開始配戴抗藍光眼鏡,藉此減少藍光(藍紫光)對眼睛的危害,目前抗藍光眼鏡大多是在鏡片中添加黃色染劑或鍍膜方式,改變鏡片顏色,進而令鏡片能夠濾除藍光,但是,以隱形眼鏡來說,前述製法所能達成抗藍光效果約為15%~25%,對於多數使用者而言,其會需求更高的抗藍光效果,因此,如何提供使用者更為良好的抗藍光眼鏡產品,即成為本發明在此欲探討之一重要課題。
有鑑於習知抗藍光眼鏡產品仍有改善之處,因此,發明人憑藉著多年來專業從事設計的豐富實務經驗,且秉持精益求精的研究精神,在經過長久的努力研究與實驗後,終於研發出本發明之一種用以抗藍光之眼鏡鏡片材料、眼鏡鏡片及其製程,以期獲得消費者的青睞。
本發明之一目的,係提供一種用以抗藍光之眼鏡鏡片材料,其能用以製作眼鏡鏡片,其中,該眼鏡鏡片材料至少包括由銀/氧化矽複合奈米顆粒與至少一種高分子單體所組成之混合物,該混合物經一材料固化程序後能形成一本體,且該本體內混合含有該銀/氧化矽複合奈米顆粒,如此,該眼鏡鏡片材料中的銀/氧化矽複合奈米顆粒便能吸收具有較大能量(或短波長)的藍光(藍紫光),使得其製作出來的隱形眼鏡具有抗藍光效果。
本發明之另一目的,係提供一種用以抗藍光之眼鏡鏡片,其包括一本體,且該本體內混合含有銀/氧化矽複合奈米顆粒,如此,藉由該本體所製作出來的各種類型之眼鏡鏡片,便能夠具有預期的抗藍光效果。
本發明之再一目的,係提供一種用以抗藍光之眼鏡鏡片的製程,該眼鏡鏡片包括一本體,其中,該製程係先將銀/氧化矽複合奈米顆粒溶於醇類溶劑中,並加入表面改質劑,以進行改質;之後,將改質後的銀/氧化矽複合奈米顆粒混合至樹脂,以形成一混合物後,填充至一模具中;嗣,對該混合物進行一材料固化程序,直至該混合物固化後,即形成一本體,且該本體內混合含有該銀/氧化矽複合奈米顆粒,如此,透過前述整體流程,能夠使改質後的銀/氧化矽複合奈米顆粒,均勻地分佈於樹脂中,且透過調整銀奈米顆粒的尺寸,更是能達到可見光吸收可調性之效果,令最後製成的眼鏡鏡片能具有預期的抗藍光效果。
為便 貴審查委員能對本發明目的、技術特徵及其功效,做更進一步之認識與瞭解,茲舉實施例配合圖式,詳細說明如下:
本發明係一種用以抗藍光之眼鏡鏡片材料、眼鏡鏡片及其製程,請參閱第1A圖所示,在一實施例中,該眼鏡鏡片1能作為隱形眼鏡或一般外戴式眼鏡的鏡片,其包括一本體11以及混合於其內的銀/氧化矽複合奈米顆粒12(Ag/SiOx),其中,該等銀/氧化矽複合奈米顆粒12能夠均勻地分佈於該本體11中(如第1A圖所示),但不以此為限,在本發明之另一實施例中,請參閱第1B圖所示,該等銀/氧化矽複合奈米顆粒12能夠集中於該本體11的中間區域,前述中間區域係指本體11被製作成眼鏡鏡片1’,並被配戴於人眼後,其會對應到人眼瞳孔的位置。
復請參閱第1A圖所示,當銀的顆粒尺寸為1奈米(nm)至100奈米時,其能夠吸收波長400奈米至500奈米的藍光(如第2圖所示),因此,藉由在本體11中混合有銀/氧化矽複合奈米顆粒12,便能夠使穿透眼鏡鏡片1的可見光中,具有較大能量的藍光(藍紫光)被吸收,以達到抗藍光之目的,且本發明之眼鏡鏡片1的抗藍光效果約為30%,相較於現由產品更為優良。
茲就本發明之銀/氧化矽複合奈米顆粒12的一種生產流程,進行說明,請參閱第1A及3圖所示,在步驟(201)中,將硝酸銀溶於溶劑中,前述溶劑能夠為水、甲醇(Methanol)、乙醇(Ethanol)、丙醇(Propanol,分子式為C3H7OH)、異丙醇(isopropanol,分子式為C3H8O)、丁醇(Butanol,分子式為C4H9OH)或乙二醇(ethylene glycol)…等,之後,再加入保護劑或高分子材料,以形成一第一溶液,其中,前述保護劑能夠為界面活性劑(例如,溴化十六烷基三甲銨(hexadecyl trimethyl ammonium bromide)或十二烷基硫酸鈉(Sodium dodecyl sulfate)…等);前述高分子材料則能夠為聚乙烯醇(Polyvinyl alcohol,簡稱PVA)、聚乙二醇(Polyethylene glycol,簡稱PEG)、聚乙烯吡咯烷酮(Polyvinylpyrrolidone,簡稱PVP)、聚丙烯酸(Poly(acrylic acid),簡稱PAA)、聚乙烯亞胺(Polyethylenimine,簡稱PEI)…等,又,在該第一溶液中,硝酸銀的重量百分比為0.01%~10%,保護劑或高分子材料的重量百分比為1%~10%,其餘則為溶劑的重量百分比。
復請參閱第1A及3圖所示,在步驟(202)中,對第一溶液進行劇烈攪拌約0.5小時~1.5小時左右,且使該第一溶液的溫度保持於攝氏25度至150度之間;嗣,在步驟(203)中,在第一溶液中添加還原劑溶液,例如,硼氫化鈉(Sodium borohydride)、檸檬酸鈉(sodium citrate)、維生素C…等,並經過1小時的等待時間後,即形成一第二溶液;之後,在步驟(204)中,將第二溶液以丙酮(Acetone)稀釋5倍後裝入離心管中,再將離心管放入至離心機中,並使離心機以10000g的速度離心運轉30分鐘,即可取得銀奈米顆粒,且該銀奈米顆粒的尺寸為1奈米至100奈米間;在步驟(205)中,將前述銀奈米顆粒回溶於醇類溶劑(如:甲醇、乙醇、丙醇、丁醇或乙二醇…等)中,並加入四乙氧基矽烷(tetraethoxysilane,簡稱TEOS),以形成一第三溶液;最後,在步驟(206)中,於室溫下對該第三溶液攪拌一天(約22~26小時)後,即可取得銀/氧化矽複合奈米顆粒12。在前述形成銀/氧化矽複合奈米顆粒12的過程中,透過調整第一溶液中硝酸銀的含量,會影響銀奈米顆粒的生長完成之尺寸(如:1奈米至100奈米,且當銀奈米顆粒的尺寸愈大時,則其能往長波長的藍光範圍進行吸收),進而能夠達到可見光吸收可調性,如此,業者便能夠根據產品的實際需求(如:抗藍光效果15%~30%),製備出所需的銀/氧化矽複合奈米顆粒12,令最後製成的眼鏡鏡片1能夠具有業者預期的抗藍光效果。
另外,在取得銀/氧化矽複合奈米顆粒12後,便能藉由下列製程,將銀/氧化矽複合奈米顆粒12混合至本體11中,請參閱第1A及4圖所示,本發明之製程包括下列步驟:
(301) 將銀/氧化矽複合奈米顆粒12溶於醇類溶劑中,並加入表面改質劑,前述表面改質劑能為3-(甲基丙烯酰氧)丙基三甲氧基硅烷(3-(trimethoxysilyl)propyl methacrylate)、甲基乙烯基二甲氧基矽烷(Vinylmethyldimethoxysilane)、乙烯基三乙氧矽烷(Triethoxyvinylsilane)、3-氨基丙基三乙氧基矽烷((3-Aminopropyl)triethoxysilane ,簡稱APTES)…等,以進行改質,又,前述改質效果能夠使銀/氧化矽複合奈米顆粒12的官能基變化,進而能均勻分散於樹脂中,並更好地鏈接至高分子單體;
(302) 將改質後的銀/氧化矽複合奈米顆粒12混合至樹脂(例如:水凝膠或矽水凝膠)中,以形成一混合物(即,眼鏡鏡片材料),在該實施例中,該樹脂能由甲基丙烯酸羥乙酯((Hydroxyethyl)methacrylate,簡稱HEMA)、二甲基丙烯酸乙二醇酯(Ethyleneglycoldimethacrylate,簡稱EGDMA)、N-乙烯基吡咯烷酮(N-Vinylpyrrolidone)與聚甲基丙烯酸甲酯(poly(methyl methacrylate,簡稱PMMA)之至少一種或數種高分子單體聚合而成;
(303) 將前述混合物填充至模具中,其中,該模具至少包括一上模座與一下模座,該混合物能先填充至下模座後,再將上模座組裝至下模座(即,合模程序);
(304) 對該混合物進行一材料固化程序,使得該混合物能固化(或聚合)形成該本體11,同時,銀/氧化矽複合奈米顆粒12會混合於該本體11中,在該實施例中,銀/氧化矽複合奈米顆粒12於本體11中所佔之重量百分比較佳為0.00001%~10%。
此外,本發明之材料固化程序能有後續作法:一是在步驟(302)中,還會在混合物中添加光起始劑(Photoinitiator),之後,在步驟(304)中,該模具會轉動,令其內的混合物受離心力影響而形成所需的形狀,同時,以紫外光(UV)照射該混合物,使得樹脂(高分子單體)與光起始劑經紫外光(UV)交聯後,能固化(或聚合)形成該本體11;二是在步驟(302)中,還會在混合物中添加起始劑(Initiator),嗣,在步驟(304)中,以高溫加熱該混合物,直至該混合物與起始劑產生交聯後固化成該本體11。前述起始劑可為偶氮二異丁腈(Azobisisobutyronitrile或2,2’-Azobis(2-methylpropionitrile),簡稱AIBN)、phenyl-azo-triphenylmethane、tert-butyl-peroxide(TBP)、cumyl peroxide、過氧化苯甲醯(Benzoyl peroxide,簡稱BPO)、tert-butyl perbenzoate(TBPB)…等。又,前述光起始劑可為2,4,6-三甲基苯甲酰基-二苯基氧化膦(2,4,6-trimethylbenzoyldiphenyl phosphine oxide,簡稱TPO)、2-羥基-2-甲基-1-苯基丙酮(2-Hydroxy-2-Methyl-1-phenyl-1-Porpanone)、1-羟基环己基苯基甲酮(1-hydroxy cyclohexyl phenyl ketone)、苯基双(2,4,6-三甲基苯甲酰基)氧化膦(phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide)…等。
復請參閱第1A圖所示,前述固化而成的本體11在被取出模具後,即為乾片,因此,還需要經過水化程序(即,將乾片浸泡於液體中,使其膨脹變軟)與滅菌程序後,才能作為能夠使用的隱形眼鏡,或者,前述固化而成的本體11在被取出模具後,即可經過削磨等各種程序,以形成一般外戴式眼鏡的鏡片。此外,以隱形眼鏡來說,其在水化程序之前/後,以及滅菌程序之前/後,還能增加其它程序,例如,AOI(Automated Optical Inspection)檢驗、收料、萃取…等程序,端看眼鏡鏡片1的產品需求。在此特別一提者,在步驟(303)中,若工作人員只在模具中填充混合物,則能夠形成如第1A圖所示的本體11,即銀/氧化矽複合奈米顆粒12均勻地分佈於本體11中;若工作人員是先在模具中填充少量混合物後,再填充單純的樹脂(未包含銀/氧化矽複合奈米顆粒12),則能夠形成如第1B圖所示的本體11,即銀/氧化矽複合奈米顆粒12能夠集中於本體11的中間區域,又,前述「少量」一詞是以第1A、1B圖兩者數量進行比較,合先陳明。
再者,除了單色的隱形眼鏡之外,本發明之本體亦可製作為彩片的隱形眼鏡,請參閱第5圖所示,再又一實施例中,彩片的隱形眼鏡能夠由一內層片4A、一色素片4B與一外層片4C結合而成,由於該內層片4A、色素片4B與外層片4C的結合方式為習知技術,故不予贅述。其中,該內層片4A的本體41能夠混合含有銀/氧化矽複合奈米顆粒42,該外層片4C則能僅為樹脂固化而成的態樣(即,未包含銀/氧化矽複合奈米顆粒42),但不以此為限,在本發明之其它實施例中,內層片4A與外層片4C兩者的結構能夠相反,或者是外層片4C同樣能混合含有銀/氧化矽複合奈米顆粒42,如此,本發明之眼鏡鏡片材料與眼鏡鏡片即可滿足各種產品態樣。
按,以上所述,僅係本發明之較佳實施例,惟,本發明所主張之權利範圍,並不侷限於此,按凡熟悉該項技藝人士,依據本發明所揭露之技術內容,可輕易思及之等效變化,均應屬不脫離本發明之保護範疇。
[習知]
無
[本發明]
1、1’:眼鏡鏡片
11、41:本體
12、42:銀/氧化矽複合奈米顆粒
4A:內層片
4B:色素片
4C:外層片
第1A圖係本發明之一實施例的示意圖;
第1B圖係本發明之另一實施例的示意圖;
第2圖係本發明之銀奈米顆粒的吸光度示意圖;
第3圖係本發明之生產銀/氧化矽複合奈米顆粒之流程圖;
第4圖係本發明之製程;及
第5圖係本發明之又一實施例的示意圖。
1:眼鏡鏡片
11:本體
12:銀/氧化矽複合奈米顆粒
Claims (17)
- 一種用以抗藍光之眼鏡鏡片材料,係用以製作眼鏡鏡片,其中,該眼鏡鏡片材料至少包括由銀/氧化矽複合奈米顆粒與至少一種高分子單體所組成之混合物,各該高分子單體經一材料固化程序後能形成一本體,且該本體內混合含有經過表面改質劑進行改質的該銀/氧化矽複合奈米顆粒。
- 如請求項1所述之眼鏡鏡片材料,其中,該混合物中還添加光起始劑,且該材料固化程序是以紫外光照射該混合物,令各該高分子單體經紫外光交聯後形成該本體。
- 如請求項1所述之眼鏡鏡片材料,其中,該混合物中還添加起始劑,且該材料固化程序是以高溫加熱該混合物,以使該混合物硬化形成該本體。
- 如請求項1至3任一項所述之眼鏡鏡片材料,其中,該本體是由樹脂所構成。
- 如請求項4所述之眼鏡鏡片材料,其中,該銀/氧化矽複合奈米顆粒在該本體中所佔之重量百分比為0.00001%~10%。
- 如請求項5所述之眼鏡鏡片材料,其中,各該高分子單體係為甲基丙烯酸羥乙酯、二甲基丙烯酸乙二醇酯、N-乙烯基吡咯烷酮或聚甲基丙烯酸甲酯。
- 一種用以抗藍光之眼鏡鏡片,包括一本體,其特徵在於,該本體內混合含有銀/氧化矽複合奈米顆粒。
- 如請求項7所述之眼鏡鏡片,其中,該本體是由樹脂所構成,以被製作成隱形眼鏡。
- 如請求項8所述之眼鏡鏡片,其中,該銀/氧化矽複合奈米顆粒在該本體中所佔之重量百分比為0.00001%~10%。
- 如請求項9所述之眼鏡鏡片,其中,該樹脂是由高分子單體聚合而成,且包括甲基丙烯酸羥乙酯、二甲基丙烯酸乙二醇酯、N-乙烯基吡咯烷酮與聚甲基丙烯酸甲酯之至少一種或數種高分子單體。
- 一種用以抗藍光之眼鏡鏡片的製程,該眼鏡鏡片包括一本體,該製程至少具有下列步驟: 將銀/氧化矽複合奈米顆粒溶於醇類溶劑中,並加入表面改質劑,以進行改質; 將改質後的銀/氧化矽複合奈米顆粒混合至樹脂中,以形成一混合物後,再填充至一模具中;及 使該混合物經過一材料固化程序,直至該混合物固化後,即形成一本體,且該本體內混合含有該銀/氧化矽複合奈米顆粒。
- 如請求項11所述之製程,其中,該銀/氧化矽複合奈米顆粒在該本體中所佔之重量百分比為0.00001%~10%。
- 如請求項12所述之製程,其中,該銀/氧化矽複合奈米顆粒係由下列步驟製成: 將硝酸銀溶於溶劑中,並加入保護劑或高分子材料,以形成一第一溶液; 對該第一溶液進行攪拌,且使該第一溶液保持於攝氏25度至150度之間; 加入還原劑溶液,並等待1小時,以形成一第二溶液; 對該第二溶液進行離心處理,以取得銀奈米顆粒; 將銀奈米顆粒回溶於醇類溶劑中,並加入四乙氧基矽烷,以形成一第三溶液;及 在室溫下對該第三溶液攪拌22~26小時,以取得銀/氧化矽複合奈米顆粒。
- 如請求項13所述之製程,其中,該混合物中還添加光起始劑,且該材料固化程序是以紫外光照射該混合物,直至該混合物固化。
- 如請求項13所述之製程,其中,該混合物中還添加起始劑,且該材料固化程序是以高溫加熱該混合物,直至該混合物固化。
- 如請求項11至15任一項所述之製程,其中,該本體自該模具中被取出後,還會經過水化程序。
- 如請求項16所述之製程,其中,該樹脂是由高分子單體聚合而成,且包括甲基丙烯酸羥乙酯、二甲基丙烯酸乙二醇酯、N-乙烯基吡咯烷酮與聚甲基丙烯酸甲酯之至少一種或數種高分子單體。
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WO2017017374A1 (fr) * | 2015-07-28 | 2017-02-02 | Essilor International (Compagnie Générale d'Optique) | Lentille ophtalmique et procédé de fabrication associé |
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TW201518282A (zh) * | 2013-11-14 | 2015-05-16 | Novartis Ag | 眼用鏡片材料之紫外光吸收劑 |
CN105622835A (zh) * | 2014-11-04 | 2016-06-01 | 九扬贸易有限公司 | 用于制备抗蓝紫光隐形眼镜的组合物及抗蓝紫光隐形眼镜 |
WO2017017374A1 (fr) * | 2015-07-28 | 2017-02-02 | Essilor International (Compagnie Générale d'Optique) | Lentille ophtalmique et procédé de fabrication associé |
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