Blogs

  • 淺談鏡片的超低反射鍍膜

    by 四眼小編
    鏡片的鍍膜能夠提高透光率，增強影像的對比度。同時，它也能大幅減少鏡片的反光，讓他人看不到討厭的反射光。 右圖為有/沒有鍍膜的對比 隨著鍍膜技術多年的發展，眼鏡鏡片使用的鍍膜通常可以達到98-99%的透光率。近年來，有些製造商推出了透光率超過99.5%的鍍膜。這樣的鍍膜有哪些好處呢？ 一般來...

  • 淺談近視控制鏡片

    by 四眼小編
    小朋友的近視控制鏡片主要有2種 漸進鏡 (抗疲勞鏡片原理) 多點離焦設計 (Myopia Defocus)  多點離焦設計(Myopia Defocus) 的原理比較複雜，要從近視形成機制講起。 近視的主要成因是Axial Elongation (眼球拉長) 使角膜和視網膜（眼睛的 "前...
    Posted in Essilor, hoya, myosmart, stellest, 近視控制

  • Super Clear Optical 選購指南2022/23

    by 四眼小編
    我們的產品雖然只是覆蓋常用眼鏡光學產品約90%，亦盡量避免複雜化，但對一般人來說仍是太多了。很多朋友都要來親自來鋪頭詢問(我們是歡迎的)。所以寫篇選購指南也有必要吧。 超清系列入門選擇，搜羅了OEM 系世上最高性價比的光學鏡片，包括了所有主流鏡種。(小編的12副眼鏡有6副都是這個系列。) 是預...
    Posted in Essilor, HEV, hoya, Lutina, UV420, 人工葉黃素鏡片, 東海, 防藍光

  • Above glasses fitting

    by 四眼小編
    很多找我們的朋友都有兩副或以上的眼鏡，以同一個度數，配同一款鏡片。 度數和鏡片都一樣，配戴起來的視覺上都會有分別，怎至某些情況下會感到暈眩。這是因為不同眼鏡框和不同臉形組合的結果。 這裡簡單講解部分常見的因素 (單光鏡片適用) 1. 眼鏡框Size 大框 = 大鏡片 = 更多入光量 = 視覺光...
    Posted in Tilt Angle, Vertex Distance, 傾斜角, 後頂距, 眼鏡框, 眼鏡框的弧度

  • About the Abbe number

    by 四眼小編
    important optical factors Lenses with different refractive index are made of different optical materials. They will have different physical proper...
    Posted in 色散, 阿貝數

  • Above high-end single vision lenses

    by 四眼小編
    High-end single vision lenses   There is a high-end lens technology called free-form lens (also called digital surfacing). It was first applie...
    Posted in FreeForm Lens, 自由曲面鏡片, 雙非球面鏡片, 高階鏡片

  • 淺談抗菌鍍膜

    by 四眼小編
    疫情的關係，所有人都對消毒殺菌都特別關注。而很多消毒殺菌產品都如雨後春筍出現。眼鏡鏡片都有抗菌鍍膜。 市面上比較多人認識的有 Zeiss 的DuraVision Antivirus Coating ， Hoya 的Bacterial Control  和東海的Ag Coating (其中Ho...

  • About polarized lenses

    by 四眼小編
    Polarized lenses (also known as Polaroid lenses) Functions of polarized lenses Regular sunglasses can reduce the amount of light and improve the co...
    Posted in polarized lens, Xtractive Polar, 偏光鏡, 寶麗萊鏡片

  • Anti-fatigue lenses (anti-fatigue lenses)

    by 四眼小編
    visual fatigue When looking at distant objects, the ciliary muscle in our eye relaxes, making the lens thinner; when looking at near objects, the c...
    Posted in eyezen, remark dynamic, Rest R, 單光鏡片, 抗疲勞

  • An introduction to high base curve lenses

    by 四眼小編
    Modern sports sunglasses often have a highly curved design. The lenses can fit tightly around the eyes and block the sun from all directions. They ...

  • Tokai Lutina and UV420 cut lens – new anti-blue light lenses

    by 四眼小編
    Tokai Optical Lutina & UV420 cut – new anti-blue light lenses According to the wavelength of light, light is divided into ultraviolet, visible...
    Posted in HEV, Lutina, UV420, 人工葉黃素鏡片, 東海, 防藍光

  • Stock lenses and RX lens

    by 四眼小編
    Stock lenses and RX lenses Patients with high astigmatism have to pay extra for glasses. Why? Was he cheated by the dealer? This is the reason for ...
    Posted in 深散光, 訂製鏡片, 車房鏡
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