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Please select from the list below or the links on the right. 

Lenses

BASIC LENS SET

Set of 6 lenses with outer diameter of 38mm and focal length of 50cm. 

Includes one of each:
  • Double Convex
  • Plano Convex
  • Plano Concave
  • Convex Concave
  • Meniscus*
  • Double Concave

* Meniscus lenses have one face curved inwards and the other curved outwards.

For showing the most important types of lenses. Optically true with ground glass edges. Recommended for demonstration and science experiments. Part#VG33038


LENSES SPHERICAL, UNMOUNTED, BI-CONVEX

 

 

Made of polished glass with ground edges.
Bi-convex lens: Magnifying or condensing lenses, with two outward curving symmetrical faces.

Diameter

Focal Length(+)

Cat. No.

38mm

50mm

3305-01

100mm

3305-02

150mm

3305-04

200mm

3305-05

300mm

3305-07

500mm

3305-08

1000mm

3305-09

50mm

50mm

3305-21

100mm

3305-22

150mm

3305-24

200mm

3305-25

300mm

3305-27

500mm

3305-28

1000mm

3305-29

75mm

150mm

3305-41

200mm

3305-45


 LENSES SPHERICAL, UNMOUNTED, BI-CONCAVE

 

Made of polished glass with ground edges.
Bi-concave lens: Used for reducing the size or spreading out light, with two inward curving symmetrical faces.

Diameter

Focal Length(+)

Cat. No.

38mm

50mm

3309-01

100mm

3309-02

150mm

3309-04

200mm

3309-05

300mm

3309-07

500mm

3309-08

1000mm

3309-09

50mm

50mm

3309-21

100mm

3309-22

150mm

3309-24

200mm

3309-25

300mm

3309-27

500mm

3309-28

1000mm

3309-29

75mm

2000mm

3309-45


 LENS, DEMONSTRATION SET, GLASS

 

For showing the most important types of lenses.
Optically true with ground glass edges. Includes one each of double convex, plano-convex, double concave, plano-concave, concavo-convex and convexo-concave lens arranged in a velvet lined case.

Diameter

Cat. No.

38mm

3313-01

50mm

3313-02


 NEUTRALISING LENS SET, GLASS

 

Comprised of one each of biconcave and biconvex lens, 38mm in dia. and 15.5cm focal length, which when used together neutralise each other, the resulting effect being that of a plane glass.

Cat. No.

3315-00


CYLINDRICAL LENSES, GLASS

 To focus light along a straight line. Useful for looking at full paths of rays on paper, such as pencils of light emerging from the slits of a comb illuminated by a small lamp.
Made of optically true glass with polished faces and ground edges. Surfaces follow the sides of cylinder(s). Beveled edges.
Dimensions: (h x w), 50mm x 45mm
Power 7D (focal length ~143mm)

 

Type

Cat. No.

Bi-convex

3318-01

Bi-concave

3318-02

Piano-convex

3318-03

Piano-concave

3318-04

Power 14D (focal length ~72mm)

Type

Cat. No.

Bi-convex

3318-11

Bi-concave

3318-12

Piano-convex

3318-13

Piano-concave

3318-14

Dimensions: (h x w), 50mm x 50mm
Power 10D (focal length 100mm)

Type

Cat. No.

Piano-convex

3318-21

Power 17D (focal length ~59mm)

Type

Cat. No.

Piano-convex

3318-31

Piano-concave

3318-32


  BLOCK, RECTANGULAR, ACRYLIC

 

Dimensions are:

l x w x h

Type

Cat. No.

100 x 75 x 20mm

Polished on all sides.

3349-02

79 x 27 x 13mm.

One face frosted.

3349-04

70 x 70 x 9mm.

Opposite edges frosted and the other two polished.

3349-06

 BLOCK, SEMICIRCULAR

 

Diameter 75mm and thickness 12mm

Type

Cat. No.

Glass

3353-01

Acrylic

3353-02

Diameter 60mm and thickness 15mm

Type

Cat. No.

Acrylic

3318-11


 LENSES, ACRYLIC

 

Dimensions: 90mm long and 15mm thick plate.
Bottom surface is frosted.

Type

Center width

Cat. No.

Bi-convex

25mm

3352-01

Bi-concave

18mm

3352-02

Dimensions : 60mm long and 12mm thick.
Bottom surface and both edges are frosted.

Type

Center width

Cat. No.

Double convex

14mm

3352-03

Double concave

5mm

3352-04

Piano-convex

11mm

3352-05

Piano-concave

5mm

3352-06


 BLOCK, SEMICIRCULAR

 

Diameter 75mm and thickness 12mm

Type

Cat. No.

Glass

3353-01

Acrylic

3353-02

Diameter 60mm and thickness 15mm.
Made of Acrylic, with one frosted surface.

Cat. No.

3318-11


 LENS DEMONSTRATION, SET OF SEVEN, ACRYLIC

 

For seeing the reflection and bending of light as it passes through lenses and prisms. Phenomenon of refraction and internal reflection is also easily visualized. The base surfaces are painted white for easy visibility of a ray of light. Thickness of the blocks is 10mm except for the last two items noted below.


Set includes the following:
Bi-convex lens 90mm long
Bi-concave lens 90mm long
Semicircular lens 93mm diameter
Trapezoidal block 85 and 30mm opposite faces
Right angle prism 100mm hypotenuse
Right angle prism 32mm hypotenuse and 50mm long
Equilateral prism 25mm face and 50mm long

Supplied in a velvet lined case.

Cat. No.

3355-01

We can also supply lenses with one side frosted.


 OPTICAL DISK, HARTL

 

For demonstrating important principles of optics such as reflection by various shapes of mirrors, refraction through several types of lenses, total internal reflection and dispersion.
The apparatus consists of a satin finished metallic disc about 30cm in diameter, graduated around the circumference in 360. A handle on the back can be used to rotate the disk through 360 in a vertical plane about a horizontal axis perpendicular to the plane and passing through the center of the disk.
The disk is partially shielded by a hood adjustable through 360 degrees. On the hood is a circular plate with slits to allow ray or rays of light to pass and fall on the optical elements. The hood also has a slot for placing red, green and blue filters. The disk face is outlined for various optical elements so that light coming through these slits strikes them at correct angles. The disk is mounted on a heavy tripod base.
A strong source of light for sending parallel rays through the slits and on to the shielding screen is required. Optics and filters are not included.

Cat. No.

3358-01


 ACCESSORIES FOR OPTICAL DISK, HARTL

 

Includes the following glass lenses or prisms. Frosted faces. Thickness 10mm.
Packed in a velvet lined case.
Spherical bi-convex lens, length 85mm
Spherical bi-concave lens, length 85mm
Triangular right angle prism (90-45-45), hypotenuse 75mm
Trapezoidal prism, base 85mm
Semicircular lens, diameter 85mm
Circular lens, diameter 85mm

Cat. No.

3358-05

Note: The optical elements are fixed on the metal disk by means of clamping screws which are provided with the Hartl Optical Disk.


Distributors of scientific and educational products

Where to buy?

Most pictures are linked to the pricing and online store for fast and convenient ordering

Our products are available at the following online stores. For large orders please call in advance and verify the availability, wholesale discounts and shipping options. If you cannot find any product in the online store of your choice, please use the search option of the store or call (973)777-3113 for further assistance.

SchoolOrders.com
MiniScience
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ScienceKitStore
ChemicalStore
ScienceProjectStore

  All orders will be shipped from our warehouses in United States (USA), Canada or United Kingdom. We ship worldwide to most countries including U.S., Canada, Australia, United Kingdom, New Zealand, Germany, France, Netherlands, and many other countries.

List of metals for science experiments

Light (Optics)
 
Prisms
Prisms
Lenses
lenses
Concave and Convex Mirrors
Mirrors
Magnifiers
Magnifiers
Spectrometer
Spectrometer
Optical Disk
Other Optics/ Light physics
Ray Box
Ray Box
 

 

Copyright 2005 MiniScience Inc.