Planepolarized light

Is asymmetric light diffuser film approved for direct and indirect skin contact? Although asymmetric light diffusers are perfectly safe for direct and indirect skin contact, they are not certified as such.

By using this film at different angles and in different positions, you can create swirling lines of light in parallel, or in different directions. Pair this film with our Circular Light Diffusers to shape and blend the light to produce even backlighting effect.

Retail store inquiries are usually handled by our Consumer Products Division directly. Please click on the preceding link to be transferred to their website.

P polarized lightapp

This website uses cookies to deliver some of our products and services as well as for analytics and to provide you a more personalized experience. Click here to learn more. By continuing to use this site, you agree to our use of cookies. We've also updated our Privacy Notice. Click here to see what's new.

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution. Contact your librarian or system administrator or Login to access Optica Member Subscription

Yes, DFML is Thermoformable.  However the more you draw this film, the more the micro louvre lens surface gets distorted.  This could be a good thing or a bad thing depending on the diffusion you are trying to create.  For something like this, it is always best to experiment.

Home Materials Specialty Materials OptiGrafix™ Optical Film Light Diffuser Film and Sheets Asymmetric Light Diffusion Film (DFML)

s-polarization vsppolarization

Circularlypolarized light

Is our asymmetric light diffuser film biodegradable? No, it is not. The only biodegradable film product we offer is acetate film and sheets.

Ellipticallypolarized light

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution. Contact your librarian or system administrator or Login to access Optica Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution. Contact your librarian or system administrator or Login to access Optica Member Subscription

OptiGrafix™ Asymmetric Light Diffusion Films are specially engineered to shape bright point lights like LEDs. We manipulate the surface of our film to give you the ability to create unique, innovative lighting solutions.

The condition of minimum deviation (MD) by a transparent optically isotropic prism is re-derived, and expressions for the intensity transmittances Tp(θ) and Ts(θ) of an uncoated prism of refractive index n and prism angle α for incident p- and s-polarized light and their derivatives with respect to the internal angle of refraction θ are obtained. When the MD condition (θ=α/2) is satisfied, Ts is maximum and Tp is maximum or minimum. The transmission ellipsometric parameters ψt,Δt of a symmetrically coated prism are also shown to be locally stationary with respect to θ at θ=α/2. The constraint on (n,α) for maximally flat transmittance (MFT) of p-polarized light at and near the MD condition is determined. The transmittance Tp of prisms represented by points that lie below the locus (n,α) of MFT exhibits oscillation as a function of θ. No similar behavior is found for the s polarization. Magnitudes and angular positions of the maxima and minima of the oscillatory Tp-versus-θ curves are also calculated as functions of α for a ZnS prism of refractive index n=2.35 in the visible.

Linearlypolarized light

Our Asymmetric Light Diffuser Film is commercially available at a price that will not break your budget when designing mass market light fixtures and signage. Applications include: Light fixtures, electronic signage, backlight systems, and other applications that require creative light play. This type of diffuser is useful for reducing the density of bright point sources, thus reducing component cost of the lighting system.

Can asymmetric light diffuser film be recycled? Yes it can, as long as it’s recycled with other polyester resin materials. Asymmetric light diffuser film can be recycled with any other materials that have this symbol.

The condition of minimum deviation (MD) by a transparent optically isotropic prism is re-derived, and expressions for the intensity transmittances Tp(θ) and Ts(θ) of an uncoated prism of refractive index n and prism angle α for incident p- and s-polarized light and their derivatives with respect to the internal angle of refraction θ are obtained. When the MD condition (θ=α/2) is satisfied, Ts is maximum and Tp is maximum or minimum. The transmission ellipsometric parameters ψt,Δt of a symmetrically coated prism are also shown to be locally stationary with respect to θ at θ=α/2. The constraint on (n,α) for maximally flat transmittance (MFT) of p-polarized light at and near the MD condition is determined. The transmittance Tp of prisms represented by points that lie below the locus (n,α) of MFT exhibits oscillation as a function of θ. No similar behavior is found for the s polarization. Magnitudes and angular positions of the maxima and minima of the oscillatory Tp-versus-θ curves are also calculated as functions of α for a ZnS prism of refractive index n=2.35 in the visible.

P polarized lightformula

This website uses cookies to deliver some of our products and services as well as for analytics and to provide you a more personalized experience. Click here to learn more. By continuing to use this site, you agree to our use of cookies. We've also updated our Privacy Notice. Click here to see what's new.

What is the heat resistance of asymmetrical diffuser film? Asymmetric diffuser film is designed to withstand heat up to 80C/145F. Exposure at higher temperatures will cause the film to start to melt, and its diffusion lens system will become deformed.

Does Asymmetric light diffuser film have good electrical properties? Sort of. Although it’s made out of polyester, it’s not meant for direct electrical exposure, and we don’t have any testing data on this product. For electrical applications, we recommend our Hazy DuraLar™ polyester film products. Please contact us today and we can help you with your requirements.

Are any of our optical films, including our various diffuser film and paper, approved for direct food contact? No. Grafix stocks other types of film products that are, including acetate, specific brands andgrades of polyester film, HDPE and polypropylene. Other types food-safe films are available as a custom order; larger production minimums may apply.

P polarized lightmeaning

DFML can be printed on its gloss side, by Screen Printing, or Offset Lithography.  DFML might be suitable for Solvent, Latex or UV Curable Inkjet printing, which are the only digital printing options could work on DFML.  DO NOT USE DFML in any plain paper copier, laser printer, or other heat fusing digital printing technology.

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution. Contact your librarian or system administrator or Login to access Optica Member Subscription

For small quantities, personal use, or retailing options, our consumer retail division can assist you best. More info about buying from us Buy wholesale craft supplies

Are our asymmetric diffuser films suitable for outdoor use? No, not as a first surface. If exposed to the elements, our asymmetric diffuser film will degrade over time. If you need to use this material outside, it must be contained in some-thing else that will keep it from being exposed to excessive UV and moisture.