Depolarizer and spectroscope and polychromater

Details Depolarizer and spectroscope and polychromater Depolarizer and spectroscope and polychromater

2006-07-11

2006-07-11

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C359S490020

Reexamination Certificate

active

07075644

ABSTRACT:
A depolarizer includes a second birefringent plate having a thickness which continuously changes in a direction of an optical axis of the second birefringent plate; and a third birefringent plate having a thickness which continuously changes in a direction of 45 degree with respect to an optical axis of the third birefringent plate; wherein the second birefringent plate is stuck on the third birefringent plate so that a reduction direction of the thickness of the second birefringent plate and a reduction direction of the thickness of the third birefringent plate are opposite to each other.

REFERENCES:
patent: 3807837 (1974-04-01), Schmidt et al.
patent: 4198123 (1980-04-01), Kremen
patent: 2003/0007149 (2003-01-01), Yamamoto et al.

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