Back to results
US 7,329,053 B2Granted
Optical transmission device and electronic apparatus
AssigneesSharp Kabushiki Kaisha, Yufu Gosei Kagaku Co., Ltd.
InventorsAtsushi Sohmura, Hiroshi Mizuno, Mitsuhisa Ikuta, Kazuhiro Mitsumoto, Shigeru Umeki
Life of this patent
Estimating the term…
Abstract
An optical transmission device configured from a case that holds an optical element that receives and/or transmits light, the case being provided with a plug insertion hole into which a plug for transmitting an optical signal is inserted; and a shutter mechanism having a shutter that opens and closes the plug insertion hole; wherein the case is provided with an installation part that holds the shutter such that it can rotate freely, and wherein the shutter mechanism can be installed from the outside to the installation part.
Claims18
An optical transmission device, comprising:
- a case that holds an optical element that receives and/or transmits light, provided with a plug insertion hole into which an optical signal transmission plug is inserted;
- and
- a shutter mechanism having a shutter that opens and closes the plug insertion hole;
- wherein the case is provided with an installation part that holds the shutter such that it can rotate freely, and the shutter mechanism can be installed from an outside to the installation part,
- wherein the shutter mechanism is provided with a torsion coil spring, the torsion coil spring being held by the shutter and biasing the shutter in a direction that closes the shutter,
- wherein the shutter is provided with a rotating shaft and a holding means for holding the torsion coil spring, the holding means being configured of a support portion for holding the torsion coil spring and a protrusion for preventing detachment of the torsion coil spring, and
- wherein the installation part is provided with a bearing into which the rotating shaft is fitted.
4 more elements
An optical transmission device, comprising:
- a case that holds an optical element that receives and/or transmits light, provided with a plug insertion hole into which an optical signal transmission plug is inserted;
- and
- a shutter mechanism having a shutter that opens and closes the plug insertion hole;
- wherein the case is provided with an installation part that holds the shutter such that it can rotate freely and a positioning means for preventing the shutter from popping out, and the shutter mechanism can be installed from an outside to the installation part,
- wherein the shutter mechanism is provided with a separate elastic body that biases the shutter in a direction that closes the shutter,
- wherein the shutter is provided with a rotating shaft and a holding means for holding the elastic body, and
- wherein the installation part is provided with a bearing into which the rotating shaft is fitted.
4 more elements
An optical transmission device, comprising:
- a case that holds an optical element that receives and/or transmits light, provided with a plug insertion hole into which an optical signal transmission plug is inserted;
- and
- a shutter mechanism having a shutter that opens and closes the plug insertion hole;
- wherein the case is provided with an installation part that holds the shutter such that it can rotate freely, and the shutter mechanism can be installed from an outside to the installation part,
- wherein the shutter mechanism is provided with a separate elastic body that biases the shutter in a direction that closes the shutter,
- wherein the shutter is provided with a rotating shaft and a holding means for holding the elastic body, and
- wherein the installation part is provided with a bearing into which the rotating shaft is fitted, and the bearing is provided with a detachment preventing means for preventing detachment of the rotating shaft of the shutter.
4 more elements
An optical transmission device, comprising:
- a case that holds an optical element that receives and/or transmits light, provided with a plug insertion hole into which an optical signal transmission plug is inserted;
- and
- a shutter mechanism having a shutter that opens and closes the plug insertion hole;
- wherein the case is provided with an installation part that holds the shutter such that it can rotate freely, and the shutter mechanism can be installed from an outside to the installation part,
- wherein the shutter mechanism is provided with a plate spring that biases the shutter in a direction that closes the shutter, and the shutter and the plate spring are molded in one piece,
- wherein the shutter is provided with a rotating shaft and a holding means for holding the plate spring, and
- wherein the installation part is provided with a bearing into which the rotating shaft is fitted.
4 more elements
Dependencies are inferred from the claim text.