3X Ruler Custom Bar Magnifier for Reading (20cm) #2153

3X Ruler Custom Bar Magnifier for Reading (20cm) Measuring plastic ruler magnifier  Promotional premium 2 scales measuring plastic bar ruler magnifying glass Durable plastic ruler with bar magnifier Ruler Bar magnifier that lies flat on the page doubling the height of letters, easily covers the full page width of most books. Bar magnifier Ruler assists reading of books, newspapers and financial reports. Size: 210mm(L) X 53mm (W) X 8mm(H) RELATED Click...

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#3155 Ruler Magnifier for School

Ruler Magnifier for School Promotional gift Plastic advertising ruler reading magnifier 1/ 30cm ruler  2/ Ruler bar magnifier that lies flat on the page doubling the height of letters, easily covers the full page width of most books. 3/ Bar magnifier ruler assists reading of books, newspapers and financial reports. 4/ Size: 315mm(L) X 52mm (W) X 6mm(H) RELATED Click...

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2X Bar Magnifier with Color Guiding Line for Reading #606

2X Bar Magnifier with Color Guiding Line for Reading Promotional Gift Durable plastic magnifier ruler Handy bar ruler Transparent bar magnifying ruler and can with custom logo printed. Ruler bar magnifier that lies flat on the page doubling the height of letters, easily covers the full page width of most books. Bar magnifier ruler assists reading of books, newspapers and financial reports. RELATED Click me ...

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Bar Magnifier with Handle 8inches #2432-1

Bar Magnifier with Handle 8inches Specification Magnification: 2X power Dimension:      200mm / 8 inches L x 25 mm W x 15 mm H Material:         acrylic Cover 2-3 bar of texts, easy to read, hands free, lay flat on surface without focusing Help people with visual disorder, low vision etc Designed with handle Distortion free, super clarity Optical grade acrylic, shatter proof Ideal for reading small prints,...

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#1553 3X Bar Magnifier

3X Bar Magnifier Specification Magnification: 3X power Dimension:      150 mm / 6 inches L x 45 mm W x 15 mm H Material:         acrylic Cover 4-5 bar of texts, easy to read, hands free, lay flat on surface without focusing Help people with visual disorder, low vision, astigmatism etc Distortion free, super clarity Optical grade acrylic, shatter proof Ideal for reading small prints, bible, book, directory,...

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Fresnel Lens

What is the fresnel lens?      Fresnel lenses resemble a planoconvex or planoconcave lens that is cut into narrow rings and flattened. If the steps are narrow, the surface of each step is generally made conical and not spherical. The convex surface is reduced to concentric ridges, to avoid overheating and to reduce weight.  Fresnel lenses are flat rather than thick in the center and can be stamped out in a mold. Fresnel lenses...

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Ruler Bar Magnifier with Handle #2432

Ruler Bar Magnifier with Handle Specification Magnification: 4X power Dimension:      240 mm L x 32 mm W x 15 mm H Material:         acrylic lens Cover 3-4 bar of texts, easy to read Ideal for reading small prints, newspaper, book, map, directory, magazine, dictionaries etc RELATED click me...

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