(redirected from Circular polarizer)
Also found in: Dictionary, Encyclopedia.


an appliance for polarizing light.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


The first element of a polariscope that polarizes the light, as distinguished from the analyzer, the second polarizing element.
Farlex Partner Medical Dictionary © Farlex 2012


1. An optical element or a device that produces polarized light from incident unpolarized light. Examples: Nicol prism, Polaroid sheet, tourmaline crystal. To see that light is polarized, another device called an analyzer is necessary. 2. In a polariscope, the first of the two polarizing elements, the second being the analyzer. See polarized light; polariscope; Nicol prism.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

Patient discussion about polarizer

Q. Can bi-polar be treated with acupuncture and Chinese medicine? Any help would be appreciated. I am a bipolar. I always get side effects from the meds being prescribed by my psychiatrist. I feel better one day but the very next day I feel moody and have outbursts even on meds as if I am not after them. I wish to follow a different system of treatment. Can bi-polar be treated with acupuncture and Chinese medicine? Any help would be appreciated.

A. Do a lot of research before coming off your meds. You should consult your doctor about how to come off your meds safely. First arm yourself with information about what the effective treatments are and how to get those treatments.

Q. My brother-in-law named Jacob has bi-polar schizophrenia; please help us by giving some solution for this… My brother-in-law named Jacob has bi-polar schizophrenia; he is currently on his medication and takes them faithfully in a positive mood. We have a hard time communicating with each other and it's destroying our marriage, please help us by giving some solution for this…

Q. Is spending money irresponsibely a sign of impending manic attack? My 32 years-old husband is known to have bi-polar disorder, but for the last ten years he has been on lithium treatment and had no attacks. Last week he bought some very expensive things to our home, without asking me (we usually discuss these things before we do anything). Does this mean he’s getting a new manic attack? Other than that purchase everything else is normal, and he appears and behaves as usual. I don’t want to take him for the psychiatrist just for spending some money.

A. Spending money is not a unique character of bi-polar people... Maybe it was a bit less calculated action. If he has manic attack, usually there'll be more things that would tell you about it.

More discussions about polarizer
This content is provided by iMedix and is subject to iMedix Terms. The Questions and Answers are not endorsed or recommended and are made available by patients, not doctors.
References in periodicals archive ?
Rill, et al., "Gold helix photonic metamaterial as broadband circular polarizer," Science, Vol.
Lu, "Ultrabroadband optical circular polarizers consisting of double-helical nanowire structures," Optics Letters, Vol.
Lu, "How to improve the signal-to-noise ratio for circular polarizers consisting of helical metamaterials?" Optics [E.sub.x]press, Vol.
The transmission coefficients and PER should be as high as possible for the circular polarizer or circular polarization convertor in engineering.
The proposed C2-symmetric ring/disk cavity can be used to realize a broadband circular polarizer as shown in Figure 5.
We will demonstrate numerically and experimentally our proposed CMMs for the dual-band circular polarizer and linear polarization transformation with strong AT effect.
As a circular polarizer for x or y-polarized incidence, the ratio [absolute value of [t.sub.yx(xy)]]/[absolute value of [t.sub.xx(yy)]] should be near unity while the phase difference [phi]([t.sub.yx(xy)]) - [phi]([t.sub.xx(yy)]) should be in the vicinity of [+ or -]90[degrees] at the operation frequency.
However, as a circular polarizer, it has relatively low polarization extinction ratio and polarization conversion efficiency.
A circular polarizer is a device to convert a right-hand circular polarization (RHCP) and/or left-hand circular polarization (LHCP) into linearly polarized signals of vertically polarized (VP) and/or horizontally polarized (HP) waves, or is used in a reverse way [1, 2].
In this paper, we develop a compact broadband waveguide dual circular polarizer. The design is intended for large-format focal plane arrays, which could be used in the next generation of cosmic microwave background (CMB) polarization experiments to understand the very early Universe [1,2].
Wu, "Designs of wide-view and broadband circular polarizers," Optics Express, vol.