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Donegan Replacement Lens for Opti-Visor

Available in multiple versions


Price: $19.48 - $67.61
Product Specifications
Brand Name Donegan Optical
UNSPSC Code 41100000

The Donegan replacement lens plate for the OptiVISOR hands-... Read full product description


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Size Name Part Number Price Quantity
   
10 Diopers B0015IN8HS
In Stock (11)
$28.99
Prime Eligible
2 Diopers B000M4BPUS
In Stock (7)
$26.17
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3 Diopers B000M48DXK
In Stock (63)
$29.99
Prime Eligible
4 Diopers B0015IS6GQ
In Stock (25)
$22.91
Prime Eligible
5 Diopers B0015IN8H8
In Stock (118)
$23.31
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7 Diopers B0015IS6HU
In Stock (66)
$35.32
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Product Features

  • Replacement lens plate for OptiVISOR magnifier which 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 that provide a specific magnification power (X), depending on the distance from the object (focal length)
  • 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-grade, acrylic lens plate ground and polished into a prismatic lens for quality, clarity, and durability
  • High-strength, durable plastic lens plate offers simple fit in OptiVISOR magnifier visor

Product Details

  • Shipping Information: View shipping rates and policies
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B005KLTM94
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (62 customer reviews)
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Product Description

The Donegan replacement lens plate for the OptiVISOR hands-free, headband binocular magnifier, has an optical-grade, acrylic lens ground and polished into a prismatic lens, and is available in multiple dioptric strengths 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, knitting, artwork, electronic inspection, book-reading, print inspection, and stamp-collecting.

Determining Magnification

Diopter
Magnification
Focal Length
(Distance from Object)
Sample View
20/20 vision
20" (50.8cm)
No Magnification
2-diopter lens
1.50X
20" (50.8cm)
1.50x Magnification
3-diopter lens
1.75X
14" (35.56cm)
1.75x Magnification
4-diopter lens
2.00X
10" (25.4cm)
2.0x Magnification
5-diopter lens
2.50X
8" (20.32cm)
2.50x Magnification
7-diopter lens
2.75X
6" (15.24cm)
2.75x Magnification
10-diopter lens
3.50X
4" (10.16cm)
3.50x Magnification

The OptiVISOR replacement lens plate is made of a durable plastic material. It is constructed to interchange in and out of the OptiVISOR body with ease. The replacement lens plate comes housed in a protective carrying case, and 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, electronic inspection, 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?

  • Replacement lens plate for OptiVISOR magnifier
  • Fitted carrying case
  • Instruction manual

Customer Reviews

I just grab the one I need for the job and it is ready to go.
Timothy J. Sexton
I paint small pendants with a lot of detail so I really needed a lens that I could work with.
Bonnie B.
Excellent replacement lens for the Donegan OptiVISOR, and it's GLASS!
S. Padilla II

Most Helpful Customer Reviews

9 of 9 people found the following review helpful By R. McCoy on January 19, 2011
Size Name: 2 Diopers Verified Purchase
This is in the Toys n games category, but it should be under hardware.
I normally use reading glasses when working on scale models. But if I use any of the stronger magnification optivisor lenses, I can't use them in conjunction with the reading glasses, the visor becomes too strong and the focal length too short. That means I have to keep switching between glasses and visor. Doesn't work very well. But with these weaker lenses I can keep the reading glasses on and get a reasonable focal length, and can flip them up when I don't need the visor. problem solved!
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6 of 7 people found the following review helpful By David Chapman on July 4, 2010
Size Name: 10 Diopers Verified Purchase
The product easily fit my older model Opti-Visor. Needed more power to see, as I get
older. Great service with prompt shipping.
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3 of 3 people found the following review helpful By Mr Frank on January 8, 2012
Size Name: 7 Diopers Verified Purchase
It's good for about 6 inches away. Perfect for close work. (I build scale ship and plane models). It's very easy to install. Good lens quality!
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3 of 3 people found the following review helpful By F. David on March 29, 2011
Size Name: 7 Diopers Verified Purchase
There is not much to say about a product like this: it does only one thing and it works or it doesn't. It works: it gives a clear image, and was easy to install.
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2 of 2 people found the following review helpful By Ginger on December 10, 2011
Size Name: 7 Diopers Verified Purchase
The Opti-Visor is an excellent tool for anyone whose eyesight is insufficient to handle the task. It provides comfortable "hands free" magnification for everything from model building to sewing to sliver removal (and even deer tick removal). The variety of interchangeable lenses make it possible to get just the right magnification for the job.
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4 of 5 people found the following review helpful By S. Hayashi on October 2, 2011
Size Name: 3 Diopers Verified Purchase
Good optical system. I had a #5 lens but it was a little too strong for most things. I love the magnifier. The only nit is that it's difficult to switch the lenses so you pick the strength and leave it on. I have an additional flip down single lens which helps for really small stuff.
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1 of 1 people found the following review helpful By PC on November 20, 2013
Size Name: 3 Diopers Verified Purchase
These lenses come with nice plastic retaining fasteners that push 'n' click right into your Donegan headset. You don't need to use the nuts and bolts that may have come with the original headset. I assume the nuts and bolts in my original were to secure the quite heavy 3x lenses so they would not slip out. These are "real" ground glass lenses. Not plastic.
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1 of 1 people found the following review helpful By William H. Rice on June 13, 2012
Size Name: 10 Diopers Verified Purchase
I have a low vision problem, technically legally blind, 20/200, and use magnification devices to read, use computer, etc. The Donegan LP 10 Replacement Lens for Opti-Visor, 3.5X Magnification, 10 Diopers, 4" Focal Length is the highest power lens for the Opti-Visor and although the distance...4 inches or so...is a little inconvenient, once focused, allows for reading even the smallest print. Serves as a nice addendum to my electronic device....
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