The OptiVISOR magnifier features replaceable binocular lenses that have beveled edges that are mounted in an interchangeable plastic frame. An adjustable headband with padded leather comfort band conforms to a variety of head sizes and provides comfort for hours of continuous use. It can be worn over prescription or safety eyeglasses. A durable, plastic visor tips up above the forehead when not in use. Spring-loaded pivot screws hold the headband in a raised or a forward-facing position. The magnifier weighs 0.67 lbs., and comes housed in a protective shell and carrying case. It has a one-year limited warranty. Diopter (D) is a technical term for the measurement of the light curvature and thickness of a lens. A dioptric number and a magnification number are not the same thing. Diopter strength represents a specific magnification power (X). For example, a 5-diopter provides 2.5X magnification (at a distance of 8”). See the magnification chart. The higher the diopter, the more magnification a lens can provide. As magnification increases, distance to the object (focal length), and field of view (diameter, or narrowness of view) decreases. Magnifiers and prescription eyeglasses have a diopter value, such as 1.5 or 2. The dioptric strength of an accessory lens, such as prescription eyeglasses or an eye loupe, must be added to the dioptric strength of the magnifier to calculate total magnification. Magnifiers are devices used to enlarge the visual appearance of an object or image. Magnifiers come in a variety of styles such as hand-held, headband, standing, clip-on, eye loupe, and those that hang in a necklace form, or fit in a trouser pocket. Magnifiers are commonly made of plastic or glass. They can have one or more lenses with varying magnification abilities, and can have a binocular configuration with a single lens, or two separate lenses. They are sometimes used with LED or fluorescent light sources to help control viewing capabilities. Magnifier ability is often expressed as magnification at a specific length. For example, 1.75X at 14” means that when a magnifier is held at 14” from a viewer’s eyes, the object will be magnified 1.75 times (X) its actual size. As magnification increases, viewing areas and focal length decrease. Magnifiers sometimes have a diopter number, expressed as + or -D, which is a measurement of strength (or power) of the lens. Some magnifiers are marked with a dioptric number on the lens. A high diopter number has a higher magnification than a low diopter number. Aspheric magnifiers, unlike spheric magnifiers, produce a sharp image to the edge of the lens for less distortion. Magnifiers are widely used in jewelry inspection and fabrication, watch-making, needlework, artwork, reading, print inspection, and stamp-collecting. | | Determining Magnification Diopter Buy Donegan DA-5 OptiVisor Headband Magnifier, 2.5x Magnification, 8" Focal Length at amazon
- Amazon Sales Rank: #1191 in BISS
- Size: 2.5x Magnification, 8" Focal Length
- Brand: Donegan Optical
- Model: OP1761/05
- Number of items: 1
- Dimensions: 2.20" h x
8.00" w x 10.10" l, .55 pounds
Features
- Binocular headband magnifier provides hands-free magnification and viewing for a variety of applications such as jewelry-making, watch-making, needlework, artwork, electronic inspection, book-reading, print inspection, and stamp-collecting
- Available in multiple dioptric strengths (indicated by the model number) that provide a specific magnification power (X), depending on the distance from the object
- A dioptric number and a magnification number are not the same thing. Diopter strength represents a specific magnification power (X). For example, a 5-diopter provides 2.5X magnification (at a distance of 8")
- Optical glass lenses are ground and polished into prismatic lenses for quality and clarity
- Can be worn over prescription or safety eyeglasses
Plastic, graphite frame surrounds the contemporary stainless steel finish dry-erase surface of this magnetic board. Magnetic quality allows dual functionality as a writing board and magnetic bulletin board. 11” x 17” size is great for personal use and the coloring of the board allows it to blend seamlessly into any modern space. Easily mount dry-erase board horizontally or vertically to the wall using included permanent self-stick pads. Also includes accessories: one Quartet dry-erase marker and two round magnets. 60-day warranty. Buy Quartet Plastic Frame Stainless Steel Finish Magnetic Dry-Erase Board, 11 x 17 Inches, Silver (MHOS1117) at amazon
- Amazon Sales Rank: #7720 in Office Product
- Color: Silver
- Brand: Quartet
- Model: MHOS1117
- Published on: 2012-05-01
- Number of items: 1
- Dimensions: 17.50" h x
11.00" w x .50" l,
Features
- Stainless steel finish magnetic dry-erase board doubles as a magnetic bulletin board
- 11 Inches x 17 Inches board is best for personal, light use
- Plastic graphite color frame complements silver color board
- Permanent self-stick pads are including for flexible vertical or horizontal wall mounting
- Dry-erase marker and round magnet accessories included; 60 day warranty on board
Take control of your game. The futuro sport adjustable knee strap helps relieve symptoms related to active knees and other conditions with gentle pressure where it is needed. This knee support is ready to roll. The time out is over. Helps provide relief and compression. Targeted pressure pad. Adjustable strap and buckle for customized fit. Soft-touch materials for comfort. Buy Futuro Sport Adjustable Knee Strap, Adjustable at amazon
- Amazon Sales Rank: #42450 in Health and Beauty
- Size: 1 EA
- Brand: Futuro
- Published on: 2011-06-21
- Number of items: 1
- Dimensions: 5.13" h x
1.50" w x 3.75" l, .4 pounds
Features
- Helps provide relief and compression
- Provides comfortable, adjustable support
- Adjustable strap and buckle for customized fit
Korean keyboard stickers with transparent background with red lettering for computer laptops desktop are made with typographical method on high-quality Matt Vinyl, thickness - 80mkn. You can use Keyboard Stickers on different keyboards on Desktops, Laptops and Notebooks such as: Acer, Apple, Apple PowerBook, Apple iBook, Apple iMac, Ashton Digital's Passport Alienware, AST, Asus, Averatec, Cybertron, Compaq, Dell, eMachines, HP, IBM, Gateway, Lenovo, Macintosh ComputersSony, NEC, Panasonic, Power Mac, Samsung, Sharp, Systemax, Toshiba ... etc.(You can use our pictures and description with our permission only) Buy KOREAN KEYBOARD STICKERS WITH TRANSPARENT BACKGROUND WITH RED LETTERING FOR COMPUTER LAPTOPS DESKTOP at amazon
- Amazon Sales Rank: #152216 in Office Product
- Brand: Online-Welcome
Features
- Korean keyboard stickers with transparent background with red lettering
- High Quality Keyboard Stickers for any Computer, Desktop, Laptop, Notebook Keyboards
- Perfect for Communication, Education, Learning a New Language, or Great Gifts!
- Easy to Apply!
- Stickers for keyboard
Small enough to carry in a backpack, purse or pocket, this delightful doll is sure to be any little one's new best friend. With plenty of outfits to dress up in and realistic features, this set will have hearts melting wherever it goes. Buy Li'l Dolly Dress up Time Eva Doll at amazon
- Amazon Sales Rank: #764480 in Office Product
- Color: Pink
- Brand: Lil Dolly
Features
- Includes doll, 2 additional sets of clothing, and a hairbrush
- Recommended for ages 3 years and up
- Imported
Industrial-strength clear mounting tape attaches items to smooth surfaces. Perfect for glass and tile surfaces. Global Product Type: Mounting Tape; Hanger/Hook Type: N/A; Holds: Up to 2 lbs.; Permanent/Removable/Repositionable: Removable. Buy 3M Scotch Heavy Duty Mounting Tape, Clear (4010) at amazon
- Amazon Sales Rank: #987 in Home Improvement
- Size: 1 Pack
- Color: Clear
- Brand: Scotch
- Model: 4010
- Published on: 2011-02-11
- Number of items: 1
- Dimensions: 5.38" h x
3.75" w x 1.15" l,
Features
- Industrial-strength, clear mounting tape.
- Ideal for glass, tile.
- 1 Roll of Mounting Tape
The New papermonster F200 will effectively turn a standard business desktop printer into an awesome publications machine by folding just over 35 sheets per minute. Publicity material, flyers, letters, mailers, invitations and all-important invoices can be folded into one of two classic and popular folds before distribution. Why show up technology by using your hands? Buy Desktop Paper Folder Plus (395945) at amazon
- Amazon Sales Rank: #245830 in Office Product
- Color: white
- Brand: papermonster
- Model: 395945
- Published on: 2011-11-01
- Number of items: 1
- Dimensions: 7.00" h x
14.25" w x 6.75" l, 11.00 pounds
Features
- Hand-fed machine folds 1 to 3 sheets into a letter fold or 1 to 5 sheets into a half fold in just seconds.
- Folds up to 36 letters a minute, 2,200 sheets per hour
- For use with 8 1/2" x 11" paper, 16-24 lb. bond
- Accepts stapled sets
- Automatically folds paper when inserted
Royal Brites Poster Board is a double sided coated poster board. A special smooth coating is applied on each side of the Poster Boards surface to create display boards that can be used on both sides. Royal Brites poster board has unique features that makes it the #1 Poster Board on the market. Its benefits are: UV resistance, the color will stay the same for longer periods of time, water resistance, prevents the inks from washing out, high ink, marker and pen receptivity, the inks and marker will be easily absorbed in the coating and will stand out. Use the Royal Brites Poster Board with a foam board or a firm board sheet as a display board, apply photographs to create photo display boards, create a poster, attach letters, shapes and pictures to it. Great for announcement boards and various poster board projects, outdoor signs, sidewalk signs, indoor signs and signage. Other poster board ideas: mount Royal Poster Board on a board and use Royal Brites adhesive borders to link the two at the top. You can then flip the poster board on either side and use both sides: the same color, twice the space. You can use it the same way with our corrugated tri-fold presentation board to create a professional display board or a poster presentation board. Make a Poster Board collage, use it for an eye-catching science project, for any school or kindergarten project or school presentation, student of the month or students' corner displays, business presentations, etc. We mainly specialize in poster boards that are widely used in home, school and business. If you are running a promotional activity in your store, or announce a sale event at home, Royal Brites poster boards are an ideal choice Buy Royal Consumer Poster Board, Black, 22 x 28 Inches, Pack of 25 (24309B) at amazon
- Amazon Sales Rank: #78513 in Office Product
- Size: 22 X 28 Inches
- Color: Black
- Brand: Royal Consumer
- Model: 24309B
- Number of items: 1
- Dimensions: 28.00" h x
1.00" w x 22.00" l, 6.50 pounds
Features
- 25 sheets of poster board
- Each piece is 22 x 28 Inches
- Royal Poster Board is a quality 2-sided, 12pt poster board
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