1. A lens device comprising:
an optical element;
a relative position control unit configured to control a relative position of the optical element;
a relative position detection unit; and
an initialization control unit initializing an absolute position of the optical element after a power supply is turned on and returning the optical element to a position before the initialization in a first mode in which a control procedure for moving the optical element is set to a speed control procedure, and driving the optical element in accordance with a position command signal in a second mode in which a control procedure for moving the optical element is set to a position control procedure.
2. The lens device according to claim 1, further comprising an absolute position detection unit.
3. The lens device according to claim 1, further comprising an absolute position signal sending unit sending a signal indicating that an absolute position signal of the optical element is invalid to a camera device, responsive to the initialization control unit initializing the absolute position of the optical element.
4. The lens device according to claim 1, further comprising:
a storage unit storing the absolute position of the optical element before the power supply is turned off; and
an absolute position signal sending unit sending a signal indicating an absolute position signal of the optical element stored in the storage unit before the power supply is turned off to a camera device.
5. The lens device according to claim 1, further comprising a display unit displaying that the initialization control unit is initializing the absolute position of the optical element.
6. The lens device according to claim 1, wherein the optical element includes at least a zoom lens, a focus lens, and an iris.
7. The lens device according to claim 6, further comprising an absolute position detection unit; and
an absolute position control unit controlling an absolute position of the optical element.
8. The lens device according to claim 1, further comprising a nonvolatile storage unit storing the absolute position of the optical element before a voltage level of the power supply becomes zero when the power supply is turned off.
9. An imaging apparatus comprising:
the lens device according to claim 1; and
a camera device installed to the lens device.
10. The imaging apparatus according to claim 9, wherein a viewfinder of the camera device displays that the initialization control unit is initializing the absolute position.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed:
1. A compact disc carrier formed from a single piece of paper board stock, the carrier comprising:
a first panel, the first panel having a pair of opposed edge flaps, each of the flaps of the first panel being inwardly foldable along a fold line to create a first enclosure, the first enclosure sized to receive therein a compact disc, the edge flaps of the first panel being sized so as not to engage each other upon creation of the first enclosure, the edge flaps of the first panel further being free of mechanical securement to each other and being free of mechanical securement to the first panel;
a second panel, the second panel having pair of opposed edge flaps, each of the flaps of the first panel being inwardly foldable along a fold line to create a second enclosure, the second enclosure sized to receive therein a compact disc, the first and second panels joined to each other along a central fold line, the edge flaps of the second panel being sized so as not to engage each other upon creation of the second enclosure, the edge flaps of the second panel further being free of mechanical securement to each other and being free of mechanical securement to the second panel; the central fold line being oriented perpendicular to the fold lines of the edge flaps of the first panel and the fold lines of the edge flaps of the second panel;
whereby upon creating the first and second enclosures followed by folding the first and second panels along the central fold line, the first and second enclosures are positioned parallel to each other.
2. The compact disc carrier of claim 1, wherein each of the first and second panels includes an insertion cutout sized to permit placement of a compact disc into each of the first and second enclosures.
3. The compact disc carrier of claim 1, wherein the each of the first and second panels includes an edge tab, the edge tabs of the first and second panels disposed adjacent each other when the first and second panels have been folded along the central fold line, and wherein at least one of the edge tabs includes a locking flap sized to lock the edge tabs together when the first and second panels have been folded along the central fold line.
4. The compact disc carrier of claim 3, wherein the edge tabs of the first and second panels include a plurality of perforations adapted to be secured to a ring binder.
5. A folded paper board compact disc carrier, comprising:
paperboard blank divided into first and second panels by a centrally located fold line;
the first panel including a pair of opposed edge flaps, the edge flaps of the first panel foldable along fold lines disposed generally perpendicular to the centrally located fold line to thereby create a first enclosure, the first panel and the edge flaps of the first panel sized so that the first enclosure is adapted to receive therein a compact disc;
the second panel including a pair of opposed edge flaps, the edge flaps of the second panel foldable along fold lines disposed generally perpendicular to the centrally located fold line to thereby create a second enclosure, the second panel and the edge flaps of the second panel sized so that the second enclosure is adapted to receive therein a compact disc;
whereby upon creation of the first and second enclosures and upon folding the paperboard blank along the centrally located fold line the first and second enclosures are disposed in spaced apart and generally parallel relationship.
6. The compact disc carrier of claim 5, wherein each of the first and second panels includes an insertion cutout sized to permit placement of a compact disc into each of the first and second enclosures.
7. The compact disc carrier of claim 5, wherein the each of the first and second panels includes an edge tab, the edge tabs of the first and second panels disposed adjacent each other when the paperboard blank has been folded along the centrally located fold line, and wherein at least one of the edge tabs includes locking means for locking the edge tabs together.
8. The compact disc carrier of claim 7, wherein the edge tabs of the first and second panels include a plurality of perforations adapted to be secured to a ring binder.
9. The compact disc carrier of claim 5, wherein the edge flaps of the first panel are sized to overlap each other when folded along their corresponding fold lines, and further wherein the edge flaps of the second panel are sized to overlap each other when folded along their corresponding fold lines.
10. The compact disc carrier of claim 5, wherein the edge flaps of the first panel are sized so that they do not engage each other when folded along their corresponding fold lines, and further wherein the edge flaps of the second panel are sized so that they do not engage each other when folded along their corresponding fold lines.
11. A folded paper board compact disc carrier comprising:
paperboard blank divided into first and second panels by a central fold line;
the first panel including a pair of opposed edge flaps, the edge flaps of the first panel foldable to an inward position along edge panel fold lines disposed generally perpendicular to the central fold line, the edge flaps of the first panel defining a first enclosure when in the inward position;
the second panel including a pair of opposed edge flaps, the edge flaps of the second panel foldable to an inward position along edge fold lines disposed generally perpendicular to the central fold line, the edge flaps of the second panel defining a second enclosure when in the inward position; and
means for maintaining the edge flaps of the first and second panels in their inward positions, the means being defined solely by contact between the edge flaps of the first panel and the edge flaps of the second panel, the contact occuring upon folding the paperboard blank along the central fold line.
12. The compact disc carrier of claim 11, wherein each of the first and second panels includes an insertion cutout sized to permit placement of a compact disc into each of the first and second enclosures.
13. The compact disc carrier of claim 11, wherein the each of the first and second panels includes an edge tab, the edge tabs of the first and second panels disposed adjacent each other when the paperboard blank has been folded along the central fold line, and wherein at least one of the edge tabs includes locking means for locking the edge tabs together.
14. The compact disc carrier of claim 11, including means defined by cooperating edges of the first panel and the second panel for securing the carrier to a ring binder.
15. A method of carrying compact discs, comprising:
providing a paperboard blank;
forming a central fold line in the paperboard blank to create a first panel and a second panel separated by the central fold line;
folding side edge portions of the first panel along fold lines disposed perpendicular to the central fold line to form a first pair of opposed edge flaps;
folding side edge portions of the second panel along fold lines disposed perpendicular to the central fold line to form a second pair of opposed edge flaps;
creating a first enclosure by folding the first pair of opposed edge flaps along the fold lines of the first panel to an inward position;
creating a second enclosure by folding the second pair of opposed edge flaps along the fold lines of the second panel to an inward position;
folding the paperboard blank along the central fold line so that the first enclosure and the second enclosure are in a spaced apart generally parallel position; and
securing the enclosures in the spaced apart generally parallel position.
16. The method of claim 15, wherein the steps of forming the enclosures and securing the enclosures are performed without the use of adhesives.