Lenses, Optics, and Mirrors

Plano-Convex Lens Back in Stock

21mm (5/8") dia. Focal length 25mm (approx. 1"). Glass.

97L018 $1.50

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Small First Surface Mirror
First surface mirrors by Optical Coating Labs. Inc. for some secret aerospace application. These featherweight flashers measure about 1&1/2 by 1&5/8" by 0.0025" thick. Coated for I/R as well as visible light. They are very thin and brittle so beware when handling. Clean with isopropyl alcohol and a soft cloth. Each unit new and individually packaged. Note: These are probably protected aluminum on a silicon wafer.  A
mirror like this can be warped to distort a reflected image.  Or to correct a distorted image by reflecting the image off a mirror distorted in the opposite direction.  This called "adaptive optics" when this is done.
These cute thin mirrors could be used for "voicecoil" mounting for image stabilization using PZTs, any fast pointing or slewing, and for light show applications or communications or by reflecting a laser off one that is being 'modulated' by voices in a room ...James Bond spy style..  And you could use one as a 'microphone' to modulate a  I/R or visible light beam as a communications device. 

25L100 Unit Price : $1.49

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Avimo Laser Splitter/Combiner
Avimo p/n 201-060-004 standard glass prism made for telecomm industry. These are used in fiber optic communications hardware where dense wavelengths are employed and are used for switching, combining and wavelength division multiplexing (wdm). They measure about 1.8 x 1 x .6 x 1 mm and are about .4 mm thick. We have a large quantity available and will discount orders of 1000 or more pieces.
25L014 Unit Price : $1.49

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Acrylic Prism
New Acrylic prism measures 38 x 38 MM on each edge.
These look good, they are quite clear.

25L003 Unit Price : $3.95

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Large Copy Lens by Minolta
These beautiful copy lenses measure 3.5" dia and 4" long. The focal length is about 1.5". There are four holes in the front flange for mounting and a groove in the rear collar for a clamp to hold the lens in place. Minolta is the mfr and the part number 4108122-001A/19970226MN is on the lens.
04L014 Unit Price : $29.95

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Biconvex Lens Big 3" in diameter
These nice big double convex lenses have a focal length of about 3". They are  Used, some have minor defects such as chips around the periphery and are color corrected. These are high quality glass lenses , not cheap plastic stuff or astigmatic made in the far east from discarded cola bottles.
04L015 Unit Price : $9.95

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Microfilm Projection Lens
These lenses were probably destined for 16mm microfilm viewers. The focal length is about 35mm and the speed is f5.6
The housing is of aluminum, the two element lens measures 1.25" long x 1" diameter. This is a good high quality used lens from industrial applications. Large quantity available; inquire about discount for cash purchases of 100 or more pieces.
04L016 Unit Price : $12.95

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Microscope Eyepiece with Prism
These 45 degree prism housings accept a standard microscope eyepiece and have 30mm threads to screw into a microscope or whatever body. They are new and made in Japan by folks unknown and are packed in boxes of 25 bearing p/n 312966-101. The housing is all metal, there is a thumbwheel for fine focus with a locking screw. Large quantity available.
04L017 Unit Price : $12.95

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Four Element  Lens
E-Lucky company is the maker of this four element lens, it's their part number 10981. This is a 40mm screw mount type lens (may fit some Olympus cameras?) and has a 77mm focal length. It is adjustable in standard stops from f4.5 to f22,
the iris is five bladed. Limited quantity.
04L008 $24.95

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10X Magnifier
Lightweight magnifier of the type we use to scrutinize maps perfect for close up inspection of photos, maps and serial numbers. Good for counting freckles on fleas 10x magnification.
04L004 $5.95

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25mm Equilateral Prism
Glass (don't be fooled by plastic imitations) prism, measuring approximately 2x2".
These new prisms are untouched by human hands; the factory is owned and operated by chimpanzees. These will split the largest of laser beams, one of these, a couple of good mirrors and a laser and you're in the hologram business. This could be the nucleus of a good school project.
These glass prisms are new and can be special ordered in quantity. The optical quality is questionable. Each one is individually wrapped to prevent damage. this one measures 25mm on each edge Three sizes currently available: 38mm see 04L002, 50mm see 04L003.

04L001 $5.99

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38mm Equilateral Prism
Glass (don't be fooled by plastic imitations) prism, measuring approximately 2x2".
These new prisms are untouched by human hands; the factory is owned and operated by chimpanzees. These will split the largest of laser beams, one of these, a couple of good mirrors and a laser and you're in the hologram business. This could be the nucleus of a good school project.
These glass prisms are new and can be special ordered in quantity. The optical quality is questionable. Each one is individually wrapped to prevent damage. this one measures 25mm on each edge Three sizes currently available: 25mm see 04L001, 50mm see 04L003.

04L002 $8.99

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50mm Equilateral Prism
Glass (don't be fooled by plastic imitations) prism, measuring approximately 2x2".
These new prisms are untouched by human hands; the factory is owned and operated by chimpanzees. These will split the largest of laser beams, one of these, a couple of good mirrors and a laser and you're in the hologram business. This could be the nucleus of a good school project.
These glass prisms are new and can be special ordered in quantity. The optical quality is questionable. Each one is individually wrapped to prevent damage. this one measures 25mm on each edge Three sizes currently available: 25mm see 04L001, 38mm see 04L002.

04L003 $12.99

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ACCESSORY LENSES
Were used on Mitsubishi Video Phone
Telephoto 6X
Wide Angle .4X
20mm Plastic lenses in plastic mounts
Instruction Sheet
22L006 $4.50 each

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99l001.gif (10446 bytes)RED PROJECTION LENS
Used in rear-screen projection TV sets. Also useful for photography and laser light shows.
Focal length 7.5mm: diameter = 75mm.
99L001 $19.95 each

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ILLUMINATED MAGNIFIER LAMP
26" swing arm lamp with a 4" diameter lens clamps to desk or workbench. A standard 60W bulb (not included)  illuminates the circuit board or other work being examined. Handy to search for solder splashes, broken traces or the part that let all the smoke out
MC327B       $19.95 each

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  Here is some information about Fresnel Lenses you can download. You can also find more information about them on the How Stuff Works website.

Fresnel1.jpg (127505 bytes) Fresnel2.jpg (151470 bytes)

Giant Fresnel Lens
Build a solar furnace with one of our  giant Fresnel lenses the size  is approx 31" x 41".
The material is a plastic sheet approx 1/16" thick.
 
Made by Kuraray P/N 491P043A90
Shipped via regular UPS but do to dimensions it will be a flat $28.00 for shipping to the Continental U.S.
22L004 price $89.95 each
 

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Giant Fresnel Lens
Build a solar furnace with one of our  giant Fresnel lenses the size  is approx 37" x 28".
The material is a plastic sheet approx 1/16" thick.
 
Made by Kuraray P/N 491P044A60
Shipped via regular UPS but do to dimensions it will be a flat $28.00 for shipping to the Continental U.S.

22L005   price $79.95 each

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96l006a.jpg (8321 bytes)SMALL GLASS PLANO-CONVEX LENS
8mm diameter, f=25mm, 3mm thick.
96L006 $1.95 each

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96L006S 10 of 96L006 for  $15.00

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PRECISION EYEPIECE
21mm f:3.5. Four coated glass lenses in black aluminum case measuring 1.15625" long by 1.0" diameter. Excellent correction of all aberrations for an angle of 35 deg. without vignetting. Resolution in focus is 385 lines/mm when the image of object is in focus (D=6mm), or 500 lines/mm when object is in focus (numerical aperture 1.41). Possible applications include: objective lens for scanners; photographic objective enlarging nearly 10X; objective for a hand-held microscope, enlarging from 30X to 120X (numerical aperture=1.41); lens working with light sensor or emitter as a precise focusing element; or lens for shaping a laser beam.
92L031 $4.95 each
 

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SQUARE MAGNIFYING LENS
Double convex. Approx. 1.75" x 2", 4X magnification.
A pair of these would make a nifty set of magnifying goggles.

97L003 $2.99 each

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DIAGONAL PRISM

Accepts 0.965" diameter eyepieces. Prism surfaces are coated for better light transmission. Brand new, boxed. Orion's price for similar item = $61.50.

96L007 $39.95 each 

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LENZ IN DA HOOD
Double-convex lens magnifies approx. 3X. Mounted in end of 3" long rubber sleeve.
 May be from auto timing light.
97L004 $1.99 each

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92l003.jpg (14961 bytes)LASER DISK OPTICAL ASSEMBLY

Voice coil operated lens for precision focusing. Feedback coils for tracking. Sorry, no specs.

92L003    $4.95 each

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Front surface mirrors are used for laser and optical applications because they are free of ghost images. These mirrors produce one reflection from the aluminized surface.  The aluminum is easily scratched so it is protected with a peel-off layer of plastic for you to remove after you have installed it..
Rear surface mirror are the usual kind of mirror.  A laser pointer will produce two reflected spots from these mirrors.   This is because the reflective silvered surface is on the backside of a normal  mirror - so light is reflected back by both the glass and the silvered surface.  The aluminum coating is protected by paint and may only be seen though the glass. The reflection from the glass is about 4% of the incident light at perpendicular incidence, but increases to 8% at 45 degrees.  If multiple rear surface mirrors are used, each one will contribute a ghost image displaced from the primary image by an amount related to the thickness of the glass and the angles.  In some instances the ghosts are not noticeable and so these mirrors are still used in rear projection systems.  Laser work generally requires front surface mirrors.

All of our mirrors are made from "float glass" which means that liquid glass is poured onto a stream of molten tin and allowed to seek its own level while cooling.  This is how traditional window glass is made today.  There is a slight waviness of about ten wave peak to valley.  Small diameter laser beams are not affected by this so much as larger beams so front surface mirrors are well suited for affordable laser, holography, and imaging projects.  Our sheets can be cut to size using normal glass cutting methods.


Mirror from Projection TV
This mirror was made for use in a projection TV set.
It is an optically high grade mirror. The measurements are 26.75" high, 40.5" on the long side and 29" on the short end of the trapezoid. The glass is approx 3/32" thick.
04L010 Unit Price : $29.95

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Front surface mirror from Projection TV
These new first surface mirrors still have the protective film attached. These were made for use in rear screen projection TV sets in conjunction with our fresnel lenses.
This mirror is a trapezoid measuring 30&1/8" on the long side, 21" & 3/4" on the short side and 18" & 1/4" high. The glass is approx 3/32" thick.
04L011 Unit Price : $99.50

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Mirror from Projection TV
These mirrors were made for use in rear screen projection TV's. They are of high optical quality.
The measurements on this rectangular mirror are 24" x 17". The glass is approx 3/32" thick.
04L012 Unit Price : $59.95

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First Surface Mirror from Projection TV
These new front surface mirrors still have the protective film attached to their front side. They were designed to be used with our fresnel lenses (se p/n 22L005) in projection TV sets.
This mirror is a trapezoid that measures 34" x 25.5" x 23"
high. These are 3/32" thick
04L013 Unit Price : $169.00

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