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Fresnel Lenses NGSS

  • Fresnel Lens (7 in. x 10 in.)
    Item #: LEN-500
  • - +
Used in conjunction with our book, Physics Demonstration Apparatus, you can easily build a device that will melt pennies in as little as 30 seconds!

Description

Traditionally used to focus the beam in lighthouse lamps, a Fresnel lens replaces the curved surface of a conventional lens with a series of small, narrow concentric grooves on its surface. Compared to conventional, bulky lenses, our plastic Fresnel lens is thinner, lighter, and flatter and captures more oblique light from the source. This Fresnel lens is perfect for magnifying images. Used in conjunction with our book, Physics Demonstration Apparatus, you can easily build a device that will melt pennies in as little as 30 seconds! 10.25" x 7". About 12" focal length.

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1 review
Spotlights
Review star icon Review star icon Review star icon Review star icon Review star icon Jul 9, 2018
I'm a trained optical engineer. I got my dad some halogen lights for his shop and we were joking about smelt fishing with them (which we have done) but using them as spotlights. I ordered some fresnel lenses form the site to show him how we could make his halogen lamps into spotlights. I also showed him how you can use a few lenses to make someone invisible and image. Wait until it isn't super sunny and just hold a fresnel lens above the ground to image trees and clouds and stuff in color. Really fresnel lenses are a great way to do alot of cheap optics demonstrations. You can easily and quickly burn wood or even the sealant on concrete with these. If you want to do a real metal melting demo on a day that is less than super bright I'd say you need a bigger fresnel lens. All in all they are Fresnel lenses and they work as described... so 5/5 on that. If you know optics and lens design you can set up a few demos with these that are easily as cool as a Van De Graaff generator.
Scott

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NGSS

This product will support your students' understanding of the Next Generation Science Standards (NGSS)*, as shown in the table below.

Elementary Middle School High School

1-PS4-3

Students can use the Fresnel Lens to conduct an investigation of how different materials affect the path of light.

2-PS1-2

Students can use these in an investigation where the Fresnel Lens and other different materials are tested with analyze data and determine which materials have the properties that are best suited for an intended purpose.

4-PS3-2

Students can use the Fresnel Lens to make observations to provide evidence that energy can be transferred from place to place by heat currents.

5-PS1-3

Students can use the Fresnel Lens to make observations and measurements to identify materials based on their properties.

K-2-ETS1-2

Students can use the Fresnel Lens to develop a simple sketch, drawing, or physical model to illustrate how the shape of an object helps it function as needed to solve a given problem.

3-5-ETS1-3

Students can make observations of the Fresnel Lens to provide evidence that energy can be transferred from place to place by sound, light, heat, and electric currents.

MS-PS3-3

Students can use the Fresnel Lens to apply scientific principles to design, construct, and test a device that either minimizes or maximizes thermal energy transfer.

MS-PS4-2

Students can use the Fresnel Lens to develop and use a model to describe how waves are reflected, absorbed, or transmitted through various materials.

MS-ETS1-4

Students can use the Fresnel Lens to develop a model or experiment to generate data for iterative testing and modification of a proposed object, tool or process such that an optimal design can be achieved.

HS-PS4-1

Students can use the Fresnel Lens to conduct investigations and use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.

HS-PS3-3

Students can use the Fresnel Lens to design, build, and redefine a device that works with given constraints to convert one form of energy into another form of energy.

HS-PS3-4

Students can use the Fresnel Lens to plan and conduct an investigation to provide evidence that the transfer of thermal energy when two components of different temperature are combined within a closed system results in a more uniform energy distribution among the components in the system (Second Law of Thermodynamics).

HS-PS4-5

Students can use the Fresnel Lens to conduct investigations about technological devices use the principles of wave behavior and wave interactions with matter to transmit.

HS-ETS1-2

Students can use the Fresnel Lens in an investigation to design a solution to a complex real-world problem by breaking it down into smaller, more manageable problems that can be solved through engineering.

Suggested Science Idea(s)

5-PS1-3

Students can use the Fresnel Lens to test for reflectivity when shining it with a light or laser.

MS-PS4-2

Students can use the Fresnel Lens and other objects during investigations about what materials allow the light from a laser to pass through, be absorbed or reflected.

 

* NGSS is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards were involved in the production of, and do not endorse, this product.

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