Optical: systems and elements – Polarization without modulation – Polarizarion by dichroism
Reexamination Certificate
2006-05-02
2006-05-02
Boutsikaris, Leonidas (Department: 2872)
Optical: systems and elements
Polarization without modulation
Polarizarion by dichroism
C359S485050, C359S494010, C359S490020, C359S584000, C359S572000
Reexamination Certificate
active
07038852
ABSTRACT:
A polarization conversion optical system converts light having a nonuniform plane of polarization into light having a uniform plane of polarization. The system includes a multilayer dielectric film at the side upon which the target light is incident. The film exhibits the property that it reflects one polarized component of the light and transmits a second polarized component of the light at a first angle of incidence, but transmits the first component at a second angle of incidence. Incident target light that is transmitted through the film at the first angle of incidence passes through a quarter-wavelength plate and is reflected at the second angle, whereupon it is retransmitted through the quarter-wavelength plate to be converted from one plane of polarization to the other. It is then emitted from the dielectric film in the same plane of polarization as light reflected by the film.
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Hatano Takuji
Sekine Koujirou
Takada Kyu
Takahara Koji
Boutsikaris Leonidas
Buchanan & Ingersoll PC
Minolta Co. , Ltd.
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