| 关键词（KeyWords） |
660 个字符（一般不超过100个字符）
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optics, lens, aspheric, condenser, fresnel, optical, filter, cylinder, cylindrical, manufacturer, reflector, mirror, ball, half-ball, hemisphere, borofloat, pyrex, borosilicate, fused silica, quartz, spherical, color, colour, glass, prism, conical, ohp, achromatic, projection, projectors, stage, lighting, theatre, toughening, condensing, industrial, commercial, camera, photographic, design, lcd, illumination, systems, magnifiers, bk7, b270, substrate, coating, aluminum, antireflection, coverglass, plane, flat, beamsplitter, transmit, schott, corning, desag, hoyer, laser, ultraviolet, infrared, uv, ir, nir, vis, transmission, reflection, windows, silver
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