- 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
- Optical-grade acrylic lens plate ground and polished into prismatic lenses for quality, clarity, and durability
- 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")
- Can be worn over prescription or safety eyeglasses
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Donegan OptiVISOR LX Headband Magnifier with Optical Grade Acrylic Lensplate
|Price:||$24.54 - $115.00|
|Brand Name||Donegan Optical|
The Donegan OptiVISOR LX is a hands-free, headband binocula... See more product details
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The Donegan OptiVISOR LX is a hands-free, headband binocular magnifier that has an optical-grade, acrylic lens plate that is ground and polished into prismatic lenses for quality, clarity, and durability, and is available in multiple dioptric strengths (indicated in the model number) which provide specific magnification power (X) at specified focal lengths, or distance from object. This magnifier enhances the size and resolution of an object or image, and is commonly used for a variety of applications such as jewelry-making, watch-making, needlework, artwork, electronic inspection, book-reading, print inspection, and stamp-collecting.
The OptiVISOR LX magnifier features a durable, replaceable binocular lensplate, made of optical grade acrylic (model AL-13). 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”). 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) decrease. 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.
Donegan Optical manufactures and distributes precision visual devices for hobbyists and professionals in industry, home, office and crafts applications. The company was founded in 1952 and is headquartered in Lenexa, Kansas.
What’s in the Box?
- OptiVISOR LX magnifier
- Fitted, plastic carrying case
- Instruction manual
Top Customer Reviews
A MUST HAVE!
This Visor is an esential part of anyones tools .. that do fine detail work or for someone whose sight has been limited ... the different magnifications will suit anyones needs,,, also available are 2 attatchments I highlt reccomend ..
1) The Opti-Light.. this attaches to the visor and lights your work for easy viewing
2} The Opti-Loupe .. This adds extra magnification when in the down position .. also flips up out of the way with 1 finger
It is a magnifying optical visor i.e. 'Optivisor' and Donegan's is the very best on the market. Nothing else comes close. You may wish to review the product more fully and realize that the LX is the 'lightweight' version which in essence means that the lens' are plastic. The Optivisor is also available with glass lens'. Since plastic will scratch more easily, consider that. On the other hand, save some money on the LX and just be as careful as you always should be with a professional grade tool. I recommend the two and a half lens for starters. You can always buy more or less powerful lens as you need them. They interchange. You don't need another base visor. Also look up the optional 'loupe'. It attaches easily and is very helpful in extreme closeup work. I used to use mine often polishing out molds to 8 micron by hand.
Most Recent Customer Reviews
works for these old eyes, not perfectly comfortable but doable for short spurtsPublished 2 days ago by Amazon Customer
A little awkward to use. Need to get used to it. Works best if you get an assortment of lenses.Published 10 days ago by ron
Nice googles. Hard to appreciate how close you have to get to whatever you're working on until you actually put on a pair. 2. Read morePublished 20 days ago by Patrick A. Barrett
These are very nice because your hands are free and you can see small details that you are working on.Published 5 months ago by Jimmy