Star Filter
Star filter is one of camera filters,as the center of light emitting,include 2 lines,4 lines,6 lines,8 lines,16 lines...
Star filters turn point light sources and specular highlights into stars. Commonly seen star filters can generate four to sixteen points stars. A star filter consists of two glasses. The top one is rotatable and has a grid etched into the glass surface. The following image is a four-point star filter. The etched grid is easily seen. The distance between two parallel etched lines is an important factor. More precisely, the wider the distance, the fewer number of stars. This distance can be 1mm to 4mm. The 2mm version is the most common one. Some star filters can even create variable star shapes. That is, in the case of 4-point star, the two etched lines do not have to be perpendicular to each other, and can be rotated to form any desired angle.
Picturn shown is 37mm,8 lines.We'd like to supply other size filters as per your requested.
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滤光片尺寸说明如下: 材料:滤光片玻璃，BK7或者其他光学材料 尺寸: 4mm-160mm - 0.20mm Squares/Rectangles:1mm-165mm 厚度:0.5mm-4mm 厚度公差:+/-0.01mm-0.1mm 平行度: 3弧分 Edges:Fine 基地面型:La... |
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反射镜（圆形&方形） |
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我们提供非球面镜片。
非球面镜片的规格如下：
材料：BK7或其他光学材料
尺寸：10mm - 200毫米
边缘：λ/ 2
中心厚度：15nm的，25nm的
弥散圆：0.03-0.2毫米
心：3弧分
表面质量:60-40划痕/开掘
通光口径：90... |
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双凸柱面镜 |
平凸柱面镜，平凹柱面镜，双凸柱面镜，双凹柱面镜，弯月柱面镜，超长柱面镜，特殊柱面镜等。 柱面镜规格说明如下： *材料：BK7 或者其他光学材料 *尺寸公差：+0.0 -- -0.1mm *中心厚度：+/-0.1mm *焦距公差:+/-1% *光洁度：20-10 *面型： lambda/8 at... |
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