立陶宛4Lasers公司維爾克斯光電在中國銷售透鏡系列產品，平凹球面透鏡是普通的聚焦鏡之一，其具有一個平面和一個凹面，而它們的焦距在凹面的一側。其可以用于發散準直光束，準直會聚光束（或對匯聚到焦點的入射光束進行準直）。為了防止球面像差，準直光束應始終入射在彎曲的透鏡表面上，反之亦然。平凹球面透鏡的英文翻譯為Plano-concave spherical lenses。
Edmund對平凹透鏡有以下的分類：平凹透鏡，PCV（平凹鏡片）可見光范圍鍍減反射膜，平凹鏡片鍍NIR增透膜，NIR II 平凹鏡片（PCV），VIS-NIR平凹鏡片（PCV）,UV級熔融石英平凹透鏡，平凸鏡片（PCX）和單透膜組件。
4Lasers平凹透鏡的主要特點：
-材質為UV級熔融石英和BK7玻璃
-標準直徑：Φ12,7mm和Φ25,4mm
-焦距范圍：-20 mm至-10000 mm
-可根據要求提供抗反射鍍膜，定制材料，尺寸和焦距
凹透鏡的主要應用：
-準直會聚光束
-發散準直光束
-繼電器成像
平凹透鏡的主要參數：
平凹透鏡 | |
材料 | BK7，UVFS |
波長范圍 | 未鍍膜BK7鏡片：350 nm-2μm，未鍍膜UVFS鏡片：185 nm-2.1μm
無涂層UVFS鏡片：185 nm-2,1μm未涂布的BK7鏡片：350 nm-2μm
|
通光孔徑 | ＞90% |
直徑公差 | +0/-0.1mm |
厚度公差 | ±0.5mm |
中心誤差 | ＜3 arcmin
|
焦距公差 | ±3%@632.8 nm |
倒角 | <0.35 mm at 45° |
表面質量 | 40-20 S-D |
面形 | <λ/8@632.8 nm |
鍍膜 | 未鍍膜，可根據要求提供 |
平凹透鏡的產品訂購信息：
以下產品對應歐元匯率7.7，隨匯率浮動。
SKU型號 | 材料 | 直徑 | 邊緣厚度 | 焦距 | （RMB） |
7507 | BK7 | 12.7mm | 2mm | -25mm | 141 |
7508 | BK7 | 12.7mm | 2mm | -50mm | 141 |
7509 | BK7 | 12.7mm | 2mm | -60mm | 141 |
7510 | BK7 | 12.7mm | 2mm | -75mm | 141 |
7511 | BK7 | 12.7mm | 2mm | -100mm | 141 |
7512 | BK7 | 12.7mm | 2mm | -150mm | 141 |
7513 | BK7 | 12.7mm | 2mm | -200mm | 141 |
7514 | BK7 | 12.7mm | 2mm | -250mm | 141 |
7515 | BK7 | 12.7mm | 2mm | -300mm | 141 |
7516 | UVFS | 12.7mm | 2mm | -20mm | 300 |
7518 | UVFS | 12.7mm | 2mm | -50mm | 300 |
7519 | UVFS | 12.7mm | 2mm | -100mm | 300 |
7520 | UVFS | 12.7mm | 2mm | -200mm | 300 |
7521 | UVFS | 12.7mm | 2mm | -300mm | 300 |
7522 | UVFS | 12.7mm | 2mm | -400mm | 300 |
7523 | UVFS | 12.7mm | 2mm | -500mm | 300 |
7524 | UVFS | 12.7mm | 2mm | -1000mm | 300 |
7525 | BK7 | 25.4mm | 2mm | -30mm | 179 |
7526 | BK7 | 25.4mm | 2mm | -50mm | 179 |
7527 | BK7 | 25.4mm | 2mm | -75mm | 179 |
7528 | BK7 | 25.4mm | 2mm | -100mm | 179 |
7529 | BK7 | 25.4mm | 2mm | -200mm | 179 |
7530 | BK7 | 25.4mm | 2mm | -300mm | 179 |
7531 | BK7 | 25.4mm | 2mm | -400mm | 179 |
7532 | BK7 | 25.4mm | 2mm | -500mm | 179 |
7533 | BK7 | 25.4mm | 2mm | -1000mm | 179 |
7534 | UVFS | 25.4mm | 2mm | -30mm | 357 |
7535 | UVFS | 25.4mm | 2mm | -50mm | 357 |
7536 | UVFS | 25.4mm | 2mm | -2000mm | 357 |
7537 | UVFS | 25.4mm | 2mm | -100mm | 357 |
7538 | UVFS | 25.4mm | 2mm | -200mm | 357 |
7539 | UVFS | 25.4mm | 2mm | -300mm | 357 |
7540 | UVFS | 25.4mm | 2mm | -400mm | 357 |
7541 | UVFS | 25.4mm | 2mm | -500mm | 357 |
7542 | UVFS | 25.4mm | 2mm | -1000mm | 357 |
7543 | BK7 | 25.4mm | 2mm | -40mm | 179 |
7544 | BK7 | 25.4mm | 2mm | -125mm | 179 |
7545 | BK7 | 25.4mm | 2mm | -150mm | 179 |
7546 | BK7 | 25.4mm | 2mm | -250mm | 179 |
7547 | BK7 | 25.4mm | 2mm | -90mm | 179 |
7548 | BK7 | 25.4mm | 2mm | -2000mm | 179 |
7549 | BK7 | 25.4mm | 2mm | -1500mm | 179 |
7550 | BK7 | 25.4mm | 2mm | -3000mm | 179 |
7551 | BK7 | 25.4mm | 2mm | -5000mm | 179 |
7552 | BK7 | 25.4mm | 2mm | -10000mm | 179 |
7553 | UVFS | 25.4mm | 2mm | -40mm | 357 |
7554 | UVFS | 25.4mm | 2mm | -60mm | 357 |
7555 | UVFS | 25.4mm | 2mm | -70mm | 357 |
7556 | UVFS | 25.4mm | 2mm | -80mm | 357 |
7557 | UVFS | 25.4mm | 2mm | -90mm | 357 |
7558 | UVFS | 25.4mm | 2mm | -150mm | 357 |
7559 | UVFS | 25.4mm | 2mm | -700mm | 357 |
7560 | UVFS | 25.4mm | 2mm | -3000mm | 357 |
7561 | UVFS | 25.4mm | 2mm | -5000mm | 357 |
7562 | UVFS | 25.4mm | 2mm | -10000mm | 357 |
所有評論僅代表網友意見，與本站立場無關。