Workplace systems - joke Technology GmbH - #21

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522 8 Bestseller! i Tel. +49 (0) 22 04 / 8 39-0 • Fax +49 (0) 22 04 / 8 39-61 • info@joke.de 8. Workplace systems // 8.1. Workshop equipment Dioptres denotes the power of refraction of the lens. This value also determines the ratio between the magnification factor and the focal distance. Focal distance is the distance between the centre of the magnifying glass and the object observed, with no image distortion. Magnification factor is the degree of magnification of the object observed. How is the magnification calculated? The following formula can be used to calculate the magnification factor: The illuminated magnifying glass therefore corresponds to a magnification of: Some useful tips: • The focal length and size of the lens decrease with increasing magnification. • In order to achieve maximum, distortion-free magnification, hold the magnifying glass approx. 25 cm from your eyes. Illuminated magnifying glass Illuminated magnifying glass This illuminated magnifying glass is characterised by several special features: • A wide range of action – even large workpieces can be observed • A mobile magnifying glass unit – workpieces can be observed from any angle • Individually switchable lamps, a third lamp can be switched on separately for perfect illumination • The light arrangement generates an even, shadow-free light • A distortion-free field of vision allows optimum work under the magnifying glass • Screw-fit lamp foot • Ground lens made of optical glass 3 4 + 1 = 1.75 Illuminated magnifying glass Order No. Price Equipment 3 x compact fluorescent tubes Colour temperature 4000 K Mains connection cable ca. 3 m, earthing plug Material steel tubing, powder-coated Articulated arms 400 x 300 mm Light output multiply adjustable Lamp cover shade, matt Joint relief spring Pivot range 60° / 310° Rotation range 360° magnifying glass Protection class I Dimensions of lens 162 x 105 mm Dioptres, lens 3 Supply voltage 230 V / 50 Hz Weight approx. 4.5 kg Colour RAL 7035 Specific features Luminance adjustable by dual position switch 0 200 560 Spares and accessories Order No. Price Table clamp 0 200 561 clamping range 0 - 65 mm Clip-on magnifying glass 0 200 562 for clipping to illuminated magnifying glass, lens 4 dioptres, allowing total magnification to 7 dioptres, dimensions: 162 x 105 mm Spare fluorescent tube, 4000 K 0 200 564 Spare fluorescent tube, 5600 K 0 200 565 Clip-on magnifying glass Number of dioptres + 1 = magnification factor 4