Optical communication device and polarization plate set
AssigneeNitto Denko Corporation
InventorAkinori Nishimura
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Abstract
There is provided an optical communication apparatus having high communication stability. An optical communication apparatus of the present invention includes: a signal-transmitting portion; and a signal-receiving portion. The signal-transmitting portion includes a light-emitting element, and a first polarizing plate, which light output from the light-emitting element enters, and which is configured to output polarized light. The signal-receiving portion includes a second polarizing plate, which the light from the signal-transmitting portion enters, and a light-receiving element configured to receive light passing through the second polarizing plate. The first polarizing plate includes a first reflective polarizer.
Claims12
An optical communication apparatus, comprising:
- a signal-transmitting portion;
- and
- a signal-receiving portion,
- wherein the signal-transmitting portion includes
- a light-emitting element, and
- a first polarizing plate, which light output from the light-emitting element enters, and which is configured to output polarized light,
- wherein the signal-receiving portion includes
- a second polarizing plate, which the light from the signal-transmitting portion enters, and
- a light-receiving element configured to receive light passing through the second polarizing plate,
- wherein the first polarizing plate includes a first reflective polarizer,
- a reflective plate is arranged on a side of the light-emitting element opposite to the first reflective polarizer, and
- the second polarizing plate is configured to selectively transmit the polarized light that is output from the signal-transmitting portion and enters the signal-receiving portion, the second polarizing plate includes a circularly polarized light separation-type reflective polarizer.
An optical communication apparatus, comprising:
- a signal-transmitting portion;
- and
- a signal-receiving portion,
- wherein the signal-transmitting portion includes
- a light-emitting element, and
- a first polarizing plate, which light output from the light-emitting element enters, and which is configured to output polarized light,
- wherein the signal-receiving portion includes
- a second polarizing plate, which the light from the signal-transmitting portion enters, and
- a light-receiving element configured to receive light passing through the second polarizing plate,
- wherein the first polarizing plate includes a first reflective polarizer,
- a reflective plate is arranged on a side of the light-emitting element opposite to the first reflective polarizer, and
- the second polarizing plate is configured to selectively transmit the polarized light that is output from the signal-transmitting portion and enters the signal-receiving portion, the second polarizing plate includes a linearly polarized light separation-type reflective polarizer and a λ/4 plate.
Dependencies are inferred from the claim text.