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Double Convex Lenses, Spherical (P-2900)
Focal Length (cm) Dia mm (1) (2) (3) (4) (5) (6) (7) (8) A 38 5 10 15 20 25 30 50 100 B 50 5 10 15 20 25 30 50 100 C 75 5 10 15 20 25 30 50 100 D 100 5 10 15 20 25 30 50 100
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Double Concave Lenses, Spherical (P-2905)
Made from optically worked glass, ground edges. Focal Length (cm) Dia mm (1) (2) (3) (4) (5) (6) (7) (8) A 38 5 10 15 20 25 30 50 100 B 50 5 10 15 20 25 30 50 100 C 75 5 10 15 20 25 30 50 100
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Set of Six Lenses (P-2920)
Made from optically, worked glass, round edges and polished faces, dia 50 mm. one each double convex, plano-convex, concave-convex, convexo-concave, double concave, plano-concave, in wooden case.
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Lens Holder Wooden (P-2940)
Wooden, for lenses or mirrors upto 75 mm dia, 100 mm high upright with V-slot mounted on base. An index mark is engraved at each end of the base.
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Lens Holder, Metal (P-2945)
With sides grooved to take lenses or mirror, black painted (a) For 38 mm dia (b) For 50 mm dia
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Mirrors Plane (P-2965)
Glass, unmounted, back silvered with protective coating (a) 50 x 50 mm (b) 75 x 25 mm (c) 75 x 75 mm (d) 100 x 75 mm (e) 150 x 25 mm (f) 150 x 50 mm (g) 150 x 100 mm
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Mirror Support Block (P-2970)
Wooden with slot on one side to take mirrors. (a) 50 x 50 x 50mm (b) 75 x 50 x 50mm (c) 100 x 50 x 50mm
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Mirrors, Concave/Convex (P-2985)
Glass, optically worked, back silvered both concave & convex type. I : Convex (cx) II : Concave (cv) (I) CV (II) CX Dia (mm) Focal Length(mm) a) 38 75 b) 38 100 c) 38 150 d) 38 200 e) 38 300 f) 50 75 g) 50 100
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Prisms Equilateral, Glass (P-3005)
60° x 60° x 60° , polished faces. Side (mm) Height (mm) a) 25 25 d) 38 38 e) 50 50 f) 62 62
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Prisms, Right Angled, Glass (P-3010)
90° x 45° x 45° polished faces. Hypotenuse (mm) Height (mm) a) 35 25 b) 54 38 c) 70 50
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Prisms, Perspex (P-3020)
60° x 60° x 60° clear perspex, polished surfaces Side (mm) Height (mm) a) 38 38 b) 50 50 c) 62 62
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Prisms, Perspex (P-3025)
90° x 45° x 45°, all faces fully polished, Hypotenuse (mm) Height (mm) a) 35 25 b) 70 50
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Blocks, Glass (P-3050)
Rectangular, all sides polished, made from slightly greenish glass free from bubbles Dimensions (a) 75 x 50 x 12 mm (b) 75 x 50 x 18 mm (c) 100 x 60 x 18 mm (d) 115 x 65 x 18 mm (e) 125 x 65 x 18 mm
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Blocks, Glass (P-3055)
Made from moulded glass, polished surfaces (a) 75 x 50 x 18 mm (b) 100 x 60 x 25 mm
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Block Perspex, Rectangular (P-3060)
Clear acrylic, all faces fully polished (a) 75 x 50 x 18 mm (b) 100 x 65 x 18 mm (c) 115 x 65 x 20 mm (d) 100 x 45 x 25 mm
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Acrylic Plastic Blocks, Set (P-3075)
Clear acrylic plastic blocks 18 mm thick with bottom surface finished in white, to show ray tracks and all other surfaces fully polished. The set comprises a) Rectangle 75 x 50 mm b) Triangle 90° x 45° x 45°, 75 mm hyp. c) Triangle 60° x 60° x 60°, 57 mm side d) Semi-circular 75 mm diameter e) Bi-convex 75 mm long, curved faces, 115 mm radius f) Bi-convex 75 mm long, curved faces, 145 mm radius g) Bi-concave 75 mm long, curved faces, 115 mm radius All packed in storage box. (Note : Other size and thickness can also be supplied on demand)
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