Lens Strength
My Friend Has Glasses +1.00 lens strength, i have glasses -1.00 strength…whats the difference ?
Basicly..Whats the difference ? lol x
Think of it is you need a little help to see further out, and your friend needs a little help to see up close. So to achieve this you have reverse magnifying effect of a negative diopter (-1.00) in your lense.. your friend has a positive 1.00 diopter, which does the opposite.
Same defocus principle just applied in directly opposite manners. 
ByField Optics Lens Strength Test
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Delta 9 3/4 Long Water Filter Cartridge, 20 Micron Particle Filtering, Package of One $4.95 20 Micron Water Filter Cartridge-Standard 9″ replacement filter cartridges recommended for photprocessing. 3/4″ elements are Polypropylene spun and have high wet strength and holding capacity…. |
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Delta 9 3/4 Long Water Filter Cartridge, 5 Micron Particle Filtering, Package of One $5.99 5 Micron Water Filter Cartridge Standard 9″ replacement filter cartridges recommended for photprocessing. 3/4″ elements are Polypropylene spun and have high wet strength and holding capacity…. |
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Professional Wireless RF Signal Bug Detector $11.95 Brand new Bug detector. Detects all hidden cameras and bugs. This unit has an audio and vibration mode. The beeps get stronger in the presence of any bugs or cameras along with LED’s that show strength in signal. Each unit comes in it’s very on padded box with instructions, and earphones. This unit requires (2)AAA Batteries (not included). This radio frequency detector truly separates itself from … |
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Icon Link Carabiner Light (Pumpkin) $27.99 A high-output LED and TIR lens produce a brilliant beam that’s tightly focused at the high or low setting. And Link’s pact modern body is machined from durable high-strength aluminum and features an integrated carabiner clip that permits multiple carry options. Because how you choose to carry your light says as much about you as the light you choose to carry.Features: High-strength aluminum body w… |
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Mag-Safe Full Magnifying Reader Safety Glasses 1.25Magnifier $16.99 * Largest Magnifying Area Available… |
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Zalman King’s Red Shoe Diaries: Runway $1.99 … |
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Classic High Power Magnifying Glass Set – 6X, 8X and 10X – Chrome Rim and Handle $8.49 *Premium-grade set for hobbies, school or work where extra subject-size increase is required *Optical-grade glass lenses precision ground to produce high clarity with minimal distortion *Set of 3 with progressively stronger magnification: 6X (3 in. dia), 8X (2-1/2 in.) and 10X (1-1/2 in.) *Great for examining fine detail on collectibles, photos, documents or as high-strength reading aid *Chrome-pl… |
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OCUSOFT LID SCRUB FOAM Size: 7.25 OZ $13.95 OCUSOFT LID SCRUB FOAM Size: 7.25 OZ… |
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Donegan OptiVISOR The Donegan OptiVISOR is a hands-free, headband binocular magnifier that has optical glass lenses that are ground and polished into prismatic lenses for quality and clarity, and is available in multiple dioptric strengths (indicated by the number in the model) which provide specific magnification power (X) at specific focal lengths, or distance from object. This magnifier enhances the si… |
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Antec Advance 3X Strength Cleaning Spray 240 mL + 60 mL $11.94 SpecificationsMfr Part Number: 3X CLEANER SPRAY 240+60MLFeatures: Passes SGS testing by killing 99.9% of Staphylococcus aureus and Escherichia coli bacteriaUnique non-drip formula – adheres to screen to prevent damageAnti-bacterial – kills 99.9% of bacteria for over 24 hoursFingerprint resistant – maximizes your screen?ÇÖs displayAlcohol & ammonia-free – designed specifically for electronically … |
June 7th, 2009 in
Vision Eyewear | tags: adjust, cool, glasses, lens strength, lens strength diopters, lens strength focal length, lens strength there, lens strength vision, reader, safety