OPTICAL COMPONENTS Cemented Achromatic Doublets Spherical Lenses Cylindrical Lenses Lens Kits Achromatic Doublets Multi-Element Micro Optics Cemented construction Focal lengths from 20 to 1000mm Diameters from 10 to 50.8mm Broadband Anti-Reflection coated Mirrors Prisms Substrates & Windows Beamsplitters Polarizers Filter & Apertures Chromatic aberration is simply the result of optical materials having different indices of refraction at different wavelengths - and as a result the focal length of a lens will be slightly different for different colors. A bandwidth of These are cemented achromats with a very precise range of tolerances and specifications. They are extremely convenient general purpose lenses. Being cemented they do not need a lens cell and can be treated as an individual component. These lenses can be used as collimators, focusing lenses or light collectors. Optimized for use at three wavelengths, 486.1, 546.1 and 656.3nm, these lenses perform well throughout the visible spectrum. They have a minimum of spherical and chromatic aberration and perform well for all paraxial imaging tasks. These achromats are coated with a broadband Anti-Reflection coating to reduce surface losses in the visible region. Optional Anti-Reflection coatings for other wavelength regions are also available. 100nm or less will rarely produce problems. Specifications & Tolerances But when your operating range is much larger than this you really should use an achromat that has been designed for use in this region. Focal length: ±1% @546.1nm Diameter: +0, -0.1mm Thickness: ±0.2mm Surface quality: 40-20 Temperature range: -40°C to 90°C Material: Grade A optical crown and Coating: Broadband Anti-Reflection flint glasses 425-675nm, or specify from pages 18 and 19 Our high quality achromats are designed for use throughout the visible spectrum. ORDERING & TECHNICAL SUPPORT www.optosigma.com ACHROMATIC DOUBLET

OPTICAL COMPONENTS Spherical Lenses Cylindrical Lenses PART NUMBER Lens Kits Achromatic Doublets Multi-Element Micro Optics Mirrors Prisms Substrates & Windows Beamsplitters Polarizers Filter & Apertures ORDERING & TECHNICAL SUPPORT

OPTICAL COMPONENTS Achromatic Doublets (continued) Spherical Lenses PART NUMBER Lens Kits Cylindrical Lenses Achromatic Doublets Multi-Element Micro Optics Mirrors Prisms Substrates & Windows Beamsplitters Polarizers Filter & Apertures ORDERING & TECHNICAL SUPPORT

OPTICAL COMPONENTS Achromatic Doublets (continued) D (mm) Spherical Lenses Cylindrical Lenses PART NUMBER Lens Kits Achromatic Doublets Multi-Element Micro Optics Mirrors Prisms Substrates & Windows Other sizes and focal lengths are available. Please call. Beamsplitters Polarizers Filter & Apertures The Laser Achromats mentioned on page 94 will also serve as very high quality imaging lenses for general applications. ORDERING & TECHNICAL SUPPORT Keeping your optics clean will both improve optical performance and increase the optic’s lifetime.