200918931 九、發明說明： 【發明所屬之技術領域】 ’特別關於一種具有變色功能 本發明關於一種鏡片 的鏡片。 【先前技術】 隨著科技之進步，鏡片為現今曰常生活中不可或缺 ^用^。依據功能性的不同可區分為光學鏡片及護目鏡 〜、可應用於光學眼鏡、太陽眼鏡、防護眼鏡、隱形 眼鏡、安全帽的護目片或遮陽帽的遮陽片，甚至望遠 鏡、顯微鏡或照相機等光學儀II都是常見的使用態 樣。 ^ 研參照圖1所不，—種習知鏡片1〇包含一本體11 以及-底色層12。底色層12具有一底色材料124，1 可降低鏡片Π)對光線的穿透度，以改善陽光對眼睛ς 造成的不適。然而，由於鏡片1G對光線的穿透度益法 隨著環境變化自動改變，在夜間、室内或昏暗光線下， 底色層12反而無法提供足夠的f透度，容㈣於行動 或行車造成危險。 因此，如何提供一種具有隨著環境光線強弱變化而 自動改變穿透度的鏡片’能夠於強光下降低光線的強度 以維持視覺舒適，更能夠於昏暗光線下提供高穿透性二 已成為重要課題之一。 200918931 【發明内容】 有鑑於上述課題，本發明之目的為提供一種具有隨 著環境光線強弱變化而自動調整穿透度的變色鏡片，铲 夠於強光下降低光線的強度以維持視覺舒適，更能夠於 昏暗光線下提供高穿透性。 緣疋，為達上述目的，依據本發明之一種變色鏡片 包含一本體，本體具有一第一側及一第二侧與第一側相 對而設。本體包含至少一光致變色材料。 承上所述，依據本發明之一種變色鏡片藉由光致變 色材料的應用，於強光下降低光線的穿透度以維持視覺 舒適，於昏暗光線下則不致降低光線的穿透度，而提供 高穿透性。與習知技術相較，本發明能夠隨著環境光線 強弱變化而自動改變鏡片的穿透度，維持視覺舒適。製 作上’本發明能夠應用於既有的生產設備，增加設備的 應用範圍。 此外，變色鏡片能夠依據實際需要增設功能層而為 多功能性的光學鏡片或護目鏡片，其功能例如但不限於 抗反射、防水、防霧、抗刮、抗紫外線等附加功能。 【實施方式】 以下將參照相關圖式，說明依據本發明較佳實施例 之一種變色鏡片，其中相同的元件將以相同的符號加以 說明。下述實施例之變色鏡片以應用於安全帽的護目鏡 片為例说明，然非用以限制本發明，本發明亦可麂用於 200918931 光學鏡片。 弟一實施例 參照圖2所示，本發明第一實施例之一種變色鏡片 20包含一本體2卜本體21具有一第一侧211及一第二 側212，第二侧212與第一侧211相對而設。本體21 包含至少一光致變色材料2丨3。 本體21具有重量百分比介於〇〇5%至5%的光致變 色材料213 ’其中較佳的比例介於〇1%至〇.7%之間。 於本實施例中’為避免光致變色材料213混入本體21， 會與黏結劑（binder)發生作用，光致變色材料213可 藉由物理或化學方法預先包覆形成膠囊再混入黏結 劑。光致變色材料213混入黏結劑後本體21經由例如 但不限於射出成型方式製成。 本體21的材質可為玻璃或高分子，高分子可包含 熱固性高分子或熱塑性高分子，例如但不限於聚碳酸酯 (PC)、聚苯乙烯（PS)、聚氨乙烯（PVC)、丙烯腈_ 丁二烯-苯乙烯共聚物（ABS )、聚甲基丙烯酸甲酯 (PMMA )、變性聚氧化二甲苯（MPPO )、聚砜（PSF )、 聚醚颯（PES)、聚醚醯亞胺（PEI)、聚醯胺醯亞胺（PAI)、 聚氨基曱酸脂（PU)、聚對苯二甲酸乙二醇酯（pet) 及其組合。 參照圖3所示，光致變色材料213可選自Chromenes 系列、Spiropyrans 系列、Spirooxazines 系列、Salicylidene anilines系列、Fulgides系列或Azobenzenes系列等材料 200918931 及其組合所構成的群組。當光致變色材料受能量例如作 T限於紫外線（UV)的照射改變結構而為同分異構物 (I麵⑽），此時異構型光致變色材料對於可見光且有 不同的吸收波長故視覺上有變色反應，紫外線越強則可 反應越多的異構型光致變色材料。此為可逆反應，當紫 外線減弱時部分異構型光致變色材料會恢復成原^的 光致變色材料的結構。 本體21彳依據環境紫外線的強弱而有不同變色程 度’而提供舒適的視覺感受。當紫外線消失或減弱時， 不會有異構型光致變色材料’則本體21不致降低光線 的穿么透度（例如大於5G%)可維持高透光性。變色鏡片 20旎夠隨著環境光線強弱而改變鏡片的穿透度達到舒 適視覺感受，確實符合實際所需。 弟二實施例 請參照圖4所示，本發明第二實施例之另一種變色 鏡片20a包含一本體21a。 本體2la與上述本體21不同之處在於：本體 另具有重量百分比介於0.1%至5%之間的底色材料 214。在本體21a不改變穿透度而保有高透光性的情況 下，仍可提供一底色作用。當本體21a發生顏色變化時， 在視覺上與底色產生重疊效果，而呈現不同色彩於變色 鏡片20a。於本實施例中，底色以黃色為例說明，當然 亦可依實際需要，將底色以其他顏色取代或利用顏色混 合調配與藉由雙層至多層混搭設計，而得到不同色彩及 200918931 濃度使變色鏡片20a具有更多元化的變化態樣。 第二實施例 請參照目5所示，本發明第三實施例之再一種變色 鏡片20b包含-本體21以及一功能層现。由於本體 21已於第一實施例詳述，於此不再贅述。 功能層22b可藉由例如但不限於浸泡、沉積、喷 灑、塗佈或黏貼方式設置於本體21的第一側211及/或 第一側212。本實施例之功能層22b設置於本體21的 第一側211及第二侧212為例說明，然非用以限制本發 明。功能層22b的功能可選自抗反射（and_reflecti〇n )、 防水（Water-proofing )、防霧（anti_f〇g )、抗刮 (anti-scratch)、抗紫外線（anti_uv)等功能及其組合 所構成的群組。 為避免變色鏡片20b經外力刮傷而產生刮痕影響 光線穿透的效果，故功能層22b可例如具有抗刮功能， 抗刮材料例如但不限於矽氧烷類樹脂。當然，視實際需 要亦可增設例如抗反射功能於變色鏡片2〇b，抗反射材 料可為二氧化鈦（Ti〇2)、二氧化矽（Si〇2)或二氧化 結（Zr〇2)所構成之單層或多層結構（multilayer)，以 提升舒適視覺感受且能避免影響視線。 ^四實施例 請參照圖6所示，本發明第四實施例之又一種變色 鏡片20c包含一本體21、一功能層22b以及另一功能層 22c。由於本體21及功能層22b已於第三實施例詳述， 200918931 於此不再贅述。本實施例之功能層22c以鄰設於功能層 ⑽為例說明，然、非用以限制本發明。 為提供鏡片本身具有防護功能，故功能層22c可例 如具有抗紫外線功能，抗紫外線材質可以是由有機材料 例如3笨ί衣之聚脂類，或無機材料例如Ti〇2_Fe2〇3所構 成。當使^者的眼睛（圖未顯示）置於本體21的第二侧 212時％i兄中的紫外線可由第一侧進入以改變本體 的光致麦色材料213之結構而產生變色功能。另因功 能= 22c設^置於本體21的第二侧212，故紫外線不會穿射 出》又置於第一側212的功能層22c，而使變色鏡片2〇c兼 具防護眼睛的功能。 當然，視實際需要亦可增設例如防水功能於變色鏡 片20c防水材料可選自氟系石夕氧烧樹脂或其他疏水性 材料（圖未顯示）’使變色鏡片2〇c避免水分滯留而影響 視線此外，為防止因體熱或流汗而產生的水氣附著於 變色鏡片20c ’功能層22c可經過含氟元素或親水性材料 (圖未顯示）的處理，而具有防霧功能以確保視線清晰。 第五實施例 請參照圖7所示，本發明第五實施例之又一種變色 鏡片20d包含一本體21、一功能層22b以及另—功能 層22d。由於本體21及功能層22b已於上述實施例詳 述，於此不再贅述。本實施例之功能層22d設置於本體 21與功能層22b之間為例說明，功能層22d具有黏著 的性質，使功能層22b黏貼於本體21。 200918931 色二：！，依據本發明之-種變色鏡片藉由光致變 ." ’於強光下降低光線的穿透度以維持視覺 =透Γ:術則不致降低光線的穿…200918931 IX. Description of the invention: [Technical field to which the invention pertains] ‘Specially relating to a lens having a color change function The present invention relates to a lens for a lens. [Prior Art] With the advancement of technology, lenses are indispensable for today's everyday life. According to different functions, it can be divided into optical lenses and goggles~, sunshades that can be applied to optical glasses, sunglasses, safety glasses, contact lenses, safety glasses or visors, even telescopes, microscopes or cameras. Optics II is a common use. ^ Research refers to FIG. 1, which is a conventional lens 1 and a bottom layer 12. The base layer 12 has a base material 124, 1 which reduces the penetration of the lens to the light to improve the discomfort caused by the sun. However, since the lens 1G's penetration of light automatically changes with environmental changes, the underlying layer 12 does not provide sufficient f-transparency at night, indoors, or dim light, and (4) is dangerous in action or driving. . Therefore, how to provide a lens that automatically changes the transmittance as the ambient light intensity changes can reduce the intensity of light under strong light to maintain visual comfort, and it is more important to provide high penetration in dim light. One of the topics. 200918931 SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a color-changing lens that automatically adjusts the transmittance according to changes in ambient light intensity, and the blade is capable of reducing the intensity of light under strong light to maintain visual comfort. Provides high penetration in dim light. In order to achieve the above object, a color changing lens according to the present invention comprises a body having a first side and a second side opposite to the first side. The body comprises at least one photochromic material. According to the above, a color-changing lens according to the present invention reduces the light transmittance under strong light to maintain visual comfort by using a photochromic material, and does not reduce the light transmittance in dim light. Provide high penetration. Compared with the prior art, the present invention can automatically change the penetration of the lens as the ambient light intensity changes, maintaining visual comfort. The invention can be applied to existing production equipment and increase the application range of the equipment. In addition, the color-changing lens can be a multifunctional optical lens or a goggle lens according to actual needs, and its functions are, for example but not limited to, anti-reflection, waterproof, anti-fog, anti-scratch, anti-ultraviolet and the like. [Embodiment] Hereinafter, a color-changing lens according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals. The color-changing lens of the following embodiment is exemplified by a goggle lens applied to a safety helmet, but is not intended to limit the present invention, and the present invention can also be applied to an optical lens of 200918931. Referring to FIG. 2, a color changing lens 20 according to a first embodiment of the present invention includes a body 2 having a first side 211 and a second side 212, and a second side 212 and a first side 211. Relatively set. The body 21 comprises at least one photochromic material 2丨3. The body 21 has a photochromic material 213' having a weight percentage of 〇〇5% to 5%, wherein a preferred ratio is between 〇1% and 〇.7%. In the present embodiment, in order to prevent the photochromic material 213 from being mixed into the body 21, it acts with a binder, and the photochromic material 213 can be pre-coated by a physical or chemical method to form a capsule and then mixed with a binder. The photochromic material 213 is mixed with the binder and the body 21 is made by, for example, but not limited to, injection molding. The material of the body 21 may be glass or a polymer, and the polymer may comprise a thermosetting polymer or a thermoplastic polymer such as, but not limited to, polycarbonate (PC), polystyrene (PS), polyvinyl chloride (PVC), acrylonitrile. _ Butadiene-styrene copolymer (ABS), polymethyl methacrylate (PMMA), denatured polyxylene oxide (MPPO), polysulfone (PSF), polyether oxime (PES), polyether quinone (PEI), polyamidoximine (PAI), polyaminophthalic acid (PU), polyethylene terephthalate (pet), and combinations thereof. Referring to FIG. 3, the photochromic material 213 may be selected from the group consisting of the Chromenes series, the Spiropyrans series, the Spirooxazines series, the Salicylidene anilines series, the Fulgides series, or the Azobenzenes series 200918931 and combinations thereof. When the photochromic material is subjected to energy, for example, T is limited to ultraviolet (UV) irradiation to change the structure to be an isomer (I face (10)), at this time, the isomerized photochromic material has visible light and different absorption wavelengths. Visually, there is a color change reaction, and the stronger the ultraviolet light, the more the isomeric photochromic material can be reacted. This is a reversible reaction, and when the ultraviolet ray is weakened, the partially isomeric photochromic material will return to the structure of the original photochromic material. The body 21彳 provides a comfortable visual experience depending on the degree of discoloration of the ambient ultraviolet light. When the ultraviolet light disappears or weakens, there is no isomeric photochromic material, and the body 21 does not reduce the penetration of light (e.g., greater than 5 G%) to maintain high light transmittance. The color-changing lens 20 is enough to change the penetration of the lens with the intensity of the ambient light to achieve a comfortable visual experience, which is indeed in line with actual needs. Second Embodiment Referring to Fig. 4, another color changing lens 20a according to a second embodiment of the present invention comprises a body 21a. The body 2a is different from the body 21 described above in that the body further has a base material 214 having a weight percentage of between 0.1% and 5%. In the case where the body 21a does not change the transmittance while maintaining high light transmittance, a background color effect can still be provided. When the color change occurs in the body 21a, an overlapping effect is visually formed with the background color, and a different color is present on the color changing lens 20a. In the present embodiment, the background color is illustrated by taking the yellow color as an example. Of course, the background color may be replaced by other colors or mixed by color and mixed by double-layer to multi-layer design according to actual needs, thereby obtaining different colors and 200918931 concentration. The color-changing lens 20a is made to have a more diverse variation. SECOND EMBODIMENT Referring to Figure 5, a further color changing lens 20b according to a third embodiment of the present invention comprises a body 21 and a functional layer. Since the body 21 has been described in detail in the first embodiment, it will not be described again. The functional layer 22b can be disposed on the first side 211 and/or the first side 212 of the body 21 by, for example, but not limited to, soaking, depositing, spraying, coating or pasting. The functional layer 22b of the present embodiment is disposed on the first side 211 and the second side 212 of the body 21 as an example, and is not intended to limit the present invention. The function of the functional layer 22b may be selected from the group consisting of anti-reflection (and_reflecti〇n), water-proofing, anti-fog (anti-f〇g), anti-scratch, anti-UV, and the like. The group that is formed. In order to prevent the scratch of the color-changing lens 20b by external force and the effect of light penetration, the functional layer 22b may have, for example, a scratch-resistant function such as, but not limited to, a barium-based resin. Of course, depending on the actual needs, an anti-reflection function such as titanium dioxide (Ti〇2 Single layer or multilayer structure to enhance the comfort of the visual experience and avoid affecting the line of sight. Four Embodiments Referring to Figure 6, a further color changing lens 20c according to a fourth embodiment of the present invention comprises a body 21, a functional layer 22b and another functional layer 22c. Since the body 21 and the functional layer 22b have been described in detail in the third embodiment, 200918931 will not be further described herein. The functional layer 22c of this embodiment is illustrated as being disposed adjacent to the functional layer (10), and is not intended to limit the present invention. In order to provide the lens itself with a protective function, the functional layer 22c may have, for example, an anti-ultraviolet function, and the anti-ultraviolet material may be composed of an organic material such as a polyester of 3 stupid clothes or an inorganic material such as Ti〇2_Fe2〇3. When the eye of the person (not shown) is placed on the second side 212 of the body 21, the ultraviolet light in the %i brother can be entered by the first side to change the structure of the photo-gray material 213 of the body to produce a color changing function. In addition, since the function = 22c is placed on the second side 212 of the body 21, the ultraviolet rays are not allowed to pass through and are placed on the functional layer 22c of the first side 212, so that the color changing lens 2〇c has the function of protecting the eyes. Of course, depending on the actual needs, it is also possible to add, for example, a waterproof function to the color-changing lens 20c. The waterproof material may be selected from a fluorine-based oxysulfide resin or other hydrophobic material (not shown) to make the color-changing lens 2〇c avoid moisture retention and affect the line of sight. In addition, in order to prevent moisture generated by body heat or sweat from adhering to the color changing lens 20c, the functional layer 22c may be treated with a fluorine-containing element or a hydrophilic material (not shown), and has an anti-fog function to ensure clear vision. . Fifth Embodiment Referring to Fig. 7, a color changing lens 20d according to a fifth embodiment of the present invention comprises a body 21, a functional layer 22b and a further functional layer 22d. Since the body 21 and the functional layer 22b have been described in detail in the above embodiments, they are not described herein again. The functional layer 22d of the present embodiment is disposed between the body 21 and the functional layer 22b. The functional layer 22d has an adhesive property, and the functional layer 22b is adhered to the body 21. 200918931 Color 2:! According to the invention, the color-changing lens is light-induced. "' reduces the light penetration under strong light to maintain the vision = the lens: the technique does not reduce the light penetration...
強5;化而：1知技*相較，本發明能夠隨著環境光線 而自動改變鏡片的穿透度，維持視覺舒適。製 乍’本發明能夠應用於既有的生產設 應用範圍。 w J 變色鏡片能夠依據實際需要增設功能層而為 夕功此性的光學鏡片或護目鏡片，其功能例如但不限於 抗反射、防水、防霧、抗刮、抗料線等附加功能。、 以上所述僅為舉例性，而非為限制性者。任何未脫 離本發明之精神與料，而對其進行之等效修改 更，均應包含於後附之申請專利範圍中。 【圖式簡單說明】 圖1為一種習知鏡片的示意圖； 圖2為本發明第—實施例之-種變色鏡片的示音 圖； 圖3為光致變色材料結構改變成同分異構物 逆反應式； 圖4為本發明第二實施例之另一種變色鏡 意圖； 圖5為本發明第三實施例之再一種變色鏡片的 意圖； 11 200918931 圖6為本發明第四實施例之又一種變色鏡片的示 意圖，以及 圖7為本發明第五實施例之又一種變色鏡片的示 意圖。 ' 【主要元件符號說明】 10 .鏡片 11、21、21a :本體 12 :底色層 124、214 :底色材料 20、20a、20b、20c、20d :變色鏡片 211 :第一侧 212 :第二侧 213 :光致變色材料 22b、22c、22d :功能層 12Strong 5; and: 1 knowledge * compared to the present invention, the present invention can automatically change the lens penetration with ambient light to maintain visual comfort. The invention can be applied to existing production applications. w J The color-changing lens can be an optical lens or a goggle lens that can be added with a functional layer according to actual needs. Its functions are, for example but not limited to, anti-reflection, waterproof, anti-fog, anti-scratch, anti-feed line and other additional functions. The above description is for illustrative purposes only and not as a limitation. Any changes without departing from the spirit and scope of the invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a conventional lens; FIG. 2 is a sound diagram of a color-changing lens according to a first embodiment of the present invention; FIG. 3 is a structural change of a photochromic material into an isomer FIG. 4 is another embodiment of a color changing mirror according to a second embodiment of the present invention; FIG. 5 is a view showing still another color changing lens according to a third embodiment of the present invention; 11 200918931 FIG. 6 is still another embodiment of the fourth embodiment of the present invention. A schematic view of a color changing lens, and FIG. 7 is a schematic view of still another color changing lens according to a fifth embodiment of the present invention. ' [Main component symbol description] 10. Lens 11, 21, 21a: body 12: ground color layer 124, 214: ground color material 20, 20a, 20b, 20c, 20d: color changing lens 211: first side 212: second Side 213: Photochromic material 22b, 22c, 22d: functional layer 12