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Giant Linen Tester
Need your hands free? Try the giant linen tester. It has a 4" diameter plate glass lens in a folding plastic frame that acts as a stand to hold the lens over your work. Provides about 1.75 power of help for any project.
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17130 LINEN TESTER, GIANT |
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Safety Mirror
For the shaving kit, the campground or the kids, nothing says no nasty glass shards like plexiglass. This unframed, unbreakable, back-surfaced mirror is 3-1/2" x 2-1/2" x 3/32" thick.
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92618 PLEXI MIRROR |
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Square Deal
"Timmy, son, take a look at my beautiful new magnifier - nice and hefty, 3-1/8" square glass that blows stuff up to 2X, and best of all, it's got bright white LEDs at all four corners. And a purty 5" long colored-plastic handle that bends up to 20 degrees so your old gramps doesn't have to." "But, Grampa, I thought magnifying glasses were always round." "Well, most of them are, Timmy, but not all of them. Not if you know where to shop. This one's got corners, because those newspaper stories that Grampa can't see are rectangular, not round. It just makes sense. Here, you push this button and watch it light up these obits and Grampa'll read 'em to you." Requires (2) AA batteries not included.
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92980 MAGNIFIER PLUS |
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40+ And Failing?
You can switch reading glasses on and off all day and keep track of them, or you can try this 21st–century answer to the pince–nez. The acrylic lenses are 1–1/16” dia and the glasses are 3–1/2” across. The lightweight, clear frames have a small handle in the lower right corner. You just hold them up to your eyes for the few seconds it takes to read what you need. They’re always at the ready, since you can use the tiny hole in the handle to attach them to your collar and let them dangle –– or because at this price, you can leave them in strategic places all over the house!
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34745 1.5X GLASSES |
Dichroic Filters
Dichroic filters separate light by selective transmission and reflection depended on the wavelength. These examples are 69 x 97 mm (about 2-11/16" x 3-7/8") x about 1.8 mm thick. The "yellow" filter TRANSMITS yellow, and reflects all other colors. (Reflections therefore have a violet hue.) Good for lab demonstrations or projects, possibly for photography too.
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22253 YELLOW DICHROIC FILTER |
Protected Lenses
Closed, this 3-1/2" dia x 11/16" thick black- and maroon-plastic disc is a traditional yin/yang design. We don't know that it will produce "all that comes to be," but open, it can let you take a closer look at what's already here. The black section rotates, and within it, (4) magnifying lenses rotate. Double lenses provide (8) views, from 5x to 12x magnification. Not a very large field, but a good design to if it's going to be tossed into her purse/his pocket.
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91854 YIN/YANG MAGNIFIER |
Placebo Lens
Please don't pop these little glass DCX beauties in your mouth. Sure, they're shaped like zinc tablets or miniature communion wafers - thin, 14mm dia - but they'll do you no good inside; probably even cause you harm. Instead, utilize their 48.3mm focal lengths for all classroom projects, or combine these with other lenses to build binoculars, magnifiers, microscopes and telescopes.
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27756 DCX LENS, 14MM |
Be(prism)am
Nice little cubic beamsplitter prism. (Get it?) 12 x 11 x 10mm, it's painted black on (3) sides. Low transmission-about 70/30 or 80/20-but it'll be fine for classroom demos, experimentation, or perhaps souping up your fancy laser device.
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42819 BEAM SPLITTER PRISM |
Combo-Scope
The manufacturer of this great little device, C&A Scientific Company Inc., calls this a Spy Scope, but we think its multiple optical applications in one very small package are the story here. The very cool 8 X 20 spotting scope has an adjustable focal length graduated from 25cm to infinity. It measures a mere 4-7/8" long when extended, with a rubber grip and eyepiece cover and wrist strap. And it comes with a 3-1/4" tall 5X loupe that's threaded to mate with the scope to create a 25X microscope. The plastic microscope stand/extender is also threaded and will come apart from the loupe. Comes with a black nylon belt pouch for the spotting scope. Can you say "multi-task?"
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93204 COMBO-SCOPE |
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Prince Plastic
Sure, when it comes to optical precision, glass is king. But in other categories (price!), plastic is definitely heir to the throne. If you're not looking for precision, but just for some funky lenses for your art project, model or for messing around with light, these 20mm dia PCV lenses will work royally. 6.6mm thick, clear plastic with a -60mm focal length. With (2) 1/8" dia mounting nubs on the side; they should file right off if you don't like them. So let the bluebloods waste their bread on glass; you've got plastic.
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27657 PLASTIC 20MM PCV |
Big Sherlockian Glass
A magnifier so big it made us wish there were someone around here with a clue. The 5" dia lens says 2.5X but is more like 1.5X. It's just over 10" long OA, in a sturdy plastic frame with a contoured rubber grip, an acrylic lens, and a mysteriously low price.
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92766 LARGE MAGNIFIER |
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