accurately made. Components The following section provides information and specifications on all of the optical components included in the OS-9254A Complete Optics System,which includes all the components available from PASCO scientific.For a list of the components that are included in each PASCO optics system,see Table 2 in the Equipment section of the manual. NOTE:All the components in the PASCO optics system have been constructed to stand up under normal laboratory use.The holders are strong and the components,where possible,are recessed for protection.However,care should be taken to avoid touching or scratching the optical surfaces of all components. When cleaning components: Use a very soft cloth,or better yet,use lens tissue,for the optical surfaces. Use only alcohol or mild,soapy water as a cleaning agent.Other solvents may attack the plastic holders. Lenses and Mirrors All lenses are made of glass.The mirrors are made of front-surface, aluminumcoated glass.Lenses and mirrors are mounted in 50 x 50 mm acrylic holders,and are recessed to protect the optical surface.The type of component and its focal length(if it has one)is printed on the label on each holder. The available lenses and mirrors are listed in Table4. Table 4:Available Lenses and Mirrors Catalog Number Focal Length Type Table 5: Available Spectral Lenses: Filters 0S-9131 -22mm Concave Catalog Number Color 0S-9132 18mm Convex 0S-9111 Red 0S-9112 Yellow 0S-9133 48mm Convex 0S-9113 Green 0S-9134 127mm Convex 0S-9114 Blue 0S-9135 252mm Convex Mirrors: 0S-9136 N/A Flat 0S-9137 25mm Concave Spectral Filter(four slide) Four spectral filters are listed in Table 5. The spectrophotometric absorption curves for the filters are shown in Figure 14. ✉14 accurately made. Components The following section provides information and specifications on all of the optical components included in the OS-9254A Complete Optics System, which includes all the components available from PASCO scientific. For a list of the components that are included in each PASCO optics system, see Table 2 in the Equipment section of the manual. ★NOTE: All the components in the PASCO optics system have been constructed to stand up under normal laboratory use. The holders are strong and the components, where possible, are recessed for protection. However, care should be taken to avoid touching or scratching the optical surfaces of all components. When cleaning components: ·Use a very soft cloth, or better yet, use lens tissue, for the optical surfaces. ·Use only alcohol or mild, soapy water as a cleaning agent. Other solvents may attack the plastic holders. Lenses and Mirrors All lenses are made of glass. The mirrors are made of front-surface, aluminumcoated glass. Lenses and mirrors are mounted in 50 x 50 mm acrylic holders, and are recessed to protect the optical surface. The type of component and its focal length (if it has one) is printed on the label on each holder. The available lenses and mirrors are listed in Table4. Table 4: Available Lenses and Mirrors Catalog Number Focal Length Type Lenses: OS-9131 -22 mm Concave OS-9132 18 mm Convex OS-9133 48 mm Convex OS-9134 127 mm Convex OS-9135 252 mm Convex Mirrors: OS-9136 N/A Flat OS-9137 25 mm Concave Spectral Filter (four slide) Four spectral filters are listed in Table 5. The spectrophotometric absorption curves for the filters are shown in Figure 14. Table 5: Available Spectral Filters Catalog Number Color OS-9111 Red OS-9112 Yellow OS-9113 Green OS-9114 Blue