CN107479122B - 一种有色渐变减光镜及其制造方法 - Google Patents
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- 238000002834 transmittance Methods 0.000 description 3
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Abstract
一种有色渐变减光镜及其制造方法,包括玻璃镜片及镀在玻璃镜片上的真空镀膜层,所述真空镀膜层由内往外依次包括Al2O3膜层、Cr膜层、H4膜层、第一层SiO2膜层、Ni膜层、第二层SiO2膜层、Fe膜层和SV‑55膜层。本发明采用玻璃材质,并使用光学真空镀膜的方法来镀制减光渐变彩色滤镜,解决了树脂基片成型而存在的面精度不够的问题,拍摄更加轻松享受,画面更加清晰逼真,真正实现了减光+渐变彩色滤镜,且本发明有效地解决了因为树脂材料不能耐高温真空光学镀膜而导致的表面易划伤的问题,大大提升了产品使用寿命。
Description
技术领域
本发明涉及摄影器材技术领域,具体是涉及一种有色渐变减光镜及其制造方法。
背景技术
目前,市面上普遍采用树脂材料的镜片,是通过染色来实现各种拍摄所需的颜色滤镜,这种镜片存在如下缺陷:1、树脂基片成型出来达不到摄影领域的高面精度要求,所以拍摄时通常会出现无法对焦的情况;2、树脂材料基片无法承受高温,所以无法通过真空光学镀膜来实现各种彩色膜、防水膜、防刮膜的镀制,所以在使用过程中,树脂片表面很容易就产生划痕,脏污,使用寿命极短。
发明内容
本发明的目的在于针对上述存在问题和不足,提供一种结构可靠、使用寿命长,能够使获取的画面更加清晰逼真的有色渐变减光镜及其制造方法。
本发明的技术方案是这样实现的:
本发明所述的有色渐变减光镜,其特点是:包括玻璃镜片及镀在玻璃镜片上的真空镀膜层,所述真空镀膜层由内往外依次包括Al2O3膜层、Cr膜层、H4膜层、第一层SiO2膜层、Ni膜层、第二层SiO2膜层、Fe膜层和SV-55膜层。
其中,所述Al2O3膜层的厚度为8.13nm。
所述Cr膜层的厚度为55.29nm。
所述H4膜层的厚度为6.14nm。
所述第一层SiO2膜层的厚度为76.32nm。
所述Ni膜层的厚度为8.76nm。
所述第二层SiO2膜层的厚度为84.36nm。
所述Fe膜层的厚度为3.52nm。
所述SV-55膜层的厚度为87.80nm。
本发明所述的有色渐变减光镜的制造方法,其特点是包括以下步骤:
步骤一:将所需规格的伞盘安装到真空光学镀膜设备的真空室顶端;
步骤二:将修正板固定在真空室内,用于修正膜料在玻璃镜片上分布;
步骤三:将所需镀膜的膜料放置到坩埚内;
步骤四:用超声波清洗好所需的玻璃镜片,并将玻璃镜片排入镀膜夹具中,然后放入伞盘指定的孔内;
步骤五:采用真空泵将真空室抽至真空度为8.0E-3~2.0E-4;
步骤六:开始镀膜,伞盘在真空室内按20~50转/分钟快速旋转,电子枪根据所需的光学厚度将膜料镀在玻璃镜片上,镀膜的先后顺序如下:
Al2O3膜层,厚度8.13nm;
Cr膜层,厚度55.29nm;
H4膜层,厚度6.14nm;
第一层SiO2膜层,厚度76.32nm;
Ni膜层,厚度8.76nm;
第二层SiO2膜层,厚度84.36nm;
Fe膜层,厚度3.52nm;
SV-55膜层,厚度87.80nm。
本发明与现有技术相比,具有以下显著优点:
1、本发明首次采用玻璃材质,并使用光学真空镀膜的方法来镀制减光渐变彩色滤镜,解决了树脂基片成型而存在的面精度不够的问题,拍摄更加轻松享受,画面更加清晰逼真;而且,首次用玻璃材质镀膜实现了减光渐变彩色滤镜,为彩色滤镜摄影需求者填补了这一市场空白;
2、本发明有效地解决了因为树脂材料不能耐高温真空光学镀膜而导致的表面易划伤的问题,大大提升了产品使用寿命;
3、本发明既能确保准确的彩色滤镜镀膜,又能精确的把控该产品所需的透光率,真正实现了减光+渐变彩色滤镜。而传统染色树脂滤镜,通过传统的染色工艺实现彩色滤镜功能,但因工艺问题,不能掌控镜片的透光率,只是单纯的着色。
下面结合附图对本发明作进一步的说明。
附图说明
图1为本发明的结构示意图。
图2为本发明在图1中I:I处的放大结构示意图。
图3为本发明的反射率光谱图。
图4为本发明的透过率光谱图。
具体实施方式
如图1-图2所示,本发明所述的有色渐变减光镜,包括玻璃镜片1及镀在玻璃镜片1上的真空镀膜层2,所述真空镀膜层2由内往外依次包括厚度为8.13nm的Al2O3膜层21、厚度为55.29nm的Cr膜层22、厚度为6.14nm的H4膜层23、厚度为76.32nm的第一层SiO2膜层24、厚度为8.76nm的Ni膜层25、厚度为84.36nm的第二层SiO2膜层26、厚度为3.52nm的Fe膜层27和厚度为87.80nm的SV-55膜层28。当然,所述各膜层的厚度在本实施方式中为最优的厚度,也可以根据实际的使用需要将各膜层设置为其它厚度。其中,所述SV-55膜层28采用SiO2和Al2O3组成的混合物镀制而成。
本发明所述有色渐变减光镜的制造方法,包括以下步骤:
步骤一:将所需规格的伞盘安装到真空光学镀膜设备的真空室顶端;
步骤二:将修正板固定在真空室内,用于修正膜料在玻璃镜片上分布;
步骤三:将所需镀膜的膜料放置到坩埚内;
步骤四:用超声波清洗好所需的玻璃镜片,并将玻璃镜片排入镀膜夹具中,然后放入伞盘指定的孔内;
步骤五:采用真空泵将真空室抽至真空度为8.0E-3~2.0E-4;
步骤六:开始镀膜,伞盘在真空室内按20~50转/分钟快速旋转,电子枪根据所需的光学厚度将膜料镀在玻璃镜片上,镀膜的先后顺序如下:
Al2O3膜层,厚度8.13nm;
Cr膜层,厚度55.29nm;
H4膜层,厚度6.14nm;
第一层SiO2膜层,厚度76.32nm;
Ni膜层,厚度8.76nm;
第二层SiO2膜层,厚度84.36nm;
Fe膜层,厚度3.52nm;
SV-55膜层,厚度87.80nm。
如图3所示,通过测试可知,本发明所述的有色渐变减光镜的反射率光谱:蓝色波段(420-450)Ravge>1,红色、橙色等其它波段小于2以下。
如图4所示,通过测试可知,本发明所述的有色渐变减光镜的透过率光谱:以GND0.9为例,蓝色波段(420-450)Tavge>20,红色、橙色等其它波段平均12.5。
本发明是通过实施例来描述的,但并不对本发明构成限制,参照本发明的描述,所公开的实施例的其他变化,如对于本领域的专业人士是容易想到的,这样的变化应该属于本发明权利要求限定的范围之内。
Claims (2)
1.一种有色渐变减光镜,其特征在于:包括玻璃镜片(1)及镀在玻璃镜片(1)上的真空镀膜层(2),所述真空镀膜层(2)由内往外依次包括Al2O3膜层(21)、Cr膜层(22)、H4膜层(23)、第一层SiO2膜层(24)、Ni膜层(25)、第二层SiO2膜层(26)、Fe膜层(27)和SV-55膜层(28);
所述H4膜层(23)的厚度为6.14nm;所述Al2O3膜层(21)的厚度为8.13nm;所述Cr膜层(22)的厚度为55.29nm;所述第一层SiO2膜层(24)的厚度为76.32nm;所述Ni膜层(25)的厚度为8.76nm;所述第二层SiO2膜层(26)的厚度为84.36nm;所述Fe膜层(27)的厚度为3.52nm;所述SV-55膜层(28)的厚度为87.80nm。
2.一种用于制造权利要求1所述有色渐变减光镜的方法,其特征在于包括以下步骤:
步骤一:将所需规格的伞盘安装到真空光学镀膜设备的真空室顶端;
步骤二:将修正板固定在真空室内,用于修正膜料在玻璃镜片上分布;
步骤三:将所需镀膜的膜料放置到坩埚内;
步骤四:用超声波清洗好所需的玻璃镜片,并将玻璃镜片排入镀膜夹具中,然后放入伞盘指定的孔内;
步骤五:采用真空泵将真空室抽至真空度为8.0E-3~2.0E-4;
步骤六:开始镀膜,伞盘在真空室内按20~50转/分钟快速旋转,电子枪根据所需的光学厚度将膜料镀在玻璃镜片上,镀膜的先后顺序如下:
Al2O3膜层,厚度8.13nm;
Cr膜层,厚度55.29nm;
H4膜层,厚度6.14nm;
第一层SiO2膜层,厚度76.32nm;
Ni膜层,厚度8.76nm;
第二层SiO2膜层,厚度84.36nm;
Fe膜层,厚度3.52nm;
SV-55膜层,厚度87.80nm。
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CN104880742A (zh) * | 2015-05-04 | 2015-09-02 | 中青辰光(北京)科技有限公司 | 一种超硬防水镀膜眼镜镜片 |
CN204740414U (zh) * | 2015-05-14 | 2015-11-04 | 惠州信诺精密光学有限公司 | 一种玻璃渐变镜 |
CN205942212U (zh) * | 2016-08-03 | 2017-02-08 | 江门市蓬江区卡色商贸有限公司 | 一种中心渐变灰滤镜 |
CN106349495A (zh) * | 2016-09-30 | 2017-01-25 | 郑州航空工业管理学院 | 一种用于通航飞机舷窗玻璃的高耐磨节能薄膜及其制备方法 |
CN207336793U (zh) * | 2017-08-30 | 2018-05-08 | 惠州信诺精密光学有限公司 | 一种有色渐变减光镜 |
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