Photographing apparatus

• US 20050219374A1
• Filed: 03/25/2005
• Published: 10/06/2005
• Est. Priority Date: 03/30/2004
• Status: Abandoned Application

• Current Assignee: Pentax Corporation (Hoya Corporation)
• Original Assignee: Pentax Corporation (Hoya Corporation)
• Inventors: Uenaka, Yukio
• Application Number:
  US11/088,778
• Publication Number:
  US 20050219374A1
• Time in Patent Office: Days
• US Class Current: 348/208.120
• CPC Class Codes: G02B 27/646 compensating for small deviations, e.g. due to vibration or shake movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68
• CPC Class Codes: G03B 17/20 visible in viewfinder
• CPC Class Codes: H04N 23/68 for stable pick-up of the scene, e.g. compensating for camera body vibrations
• CPC Class Codes: H04N 23/687 by shifting the lens or sensor position

Abstract

A photographing apparatus comprises a detecting unit and an indicating unit. The detecting unit performs a detecting operation to detect a first quantity of a hand-shake of the photographing apparatus in a first direction, and to detect a second quantity of the hand-shake in a second direction. The first direction is perpendicular to an optical axis of a photographing lens of the photographing apparatus. The second direction is perpendicular to the optical axis and the first direction. The indicating unit performs an indicating operation to indicate the first and second quantities.

Claims

1. A photographing apparatus, comprising:

a detecting unit which performs a detecting operation to detect a first quantity of a hand-shake of said photographing apparatus in a first direction being perpendicular to an optical axis of a photographing lens of said photographing apparatus, and to detect a second quantity of said hand-shake in a second direction being perpendicular to said optical axis and said first direction; and

an indicating unit which performs an indicating operation to indicate said first and second quantities.

2. The photographing apparatus according to claim 1, wherein said detecting unit has a hand-shake quantity detecting unit and a calculating unit;

said hand-shake quantity detecting unit detects a first signal regarding said hand-shake in said first direction and a second signal regarding said hand-shake in said second direction, and outputs said first and second signals; and

said calculating unit calculates said first quantity on the basis of said first signal, and calculates said second quantity on the basis of said second signal.

3. The photographing apparatus according to claim 2, wherein said hand-shake quantity detecting unit has first and second angular velocity sensors and a filter circuit;

said first angular velocity sensor detects a first velocity-component in said first direction of an angular velocity of said photographing apparatus;

said second angular velocity sensor detects a second velocity-component in said second direction of said angular velocity; and

said filter circuit outputs a first angular velocity signal which is amplified and has a reduced null voltage and panning for said first velocity-component, as said first signal, and outputs a second angular velocity signal which is amplified and has a reduced null voltage and panning for said second velocity-component, as said second signal.

4. The photographing apparatus according to claim 1, wherein said detecting operation and said indicating operation are performed at every first time-interval.

5. The photographing apparatus according to claim 4, wherein said first time-interval is 1 ms.

6. The photographing apparatus according to claim 4, wherein said indicating unit indicates said first and second quantities according to time.

7. The photographing apparatus according to claim 6, wherein said indicating operation indicating said first and second quantities according to time is performed by plotting values of said first and second quantities changed in accordance with said first time-interval, on a graph;

said graph has a first axis being parallel to said first direction and a second axis being parallel to said second direction; and

one of said first and second axes represents time, and another of said first and second axes represents the value of the hand-shake quantity.

8. The photographing apparatus according to claim 7, wherein, the values of said first and second quantities from a first past-point until a present point are plotted on said graph;

said present point is a time point at which the latest said detecting operation is performed;

said first past-point is a time point in the past which is a predetermined time-length back from said present point.

9. The photographing apparatus according to claim 8, wherein said predetermined time-length is the time range of said graph.

10. The photographing apparatus according to claim 7, wherein the values of said first and second quantities are plotted by using a figure or a sign to indicate a point on said graph;

a form of one of said figure and sign for plotting the values of said first quantity is different from a form of one of said figure and sign for plotting the values of said second quantity.

11. The photographing apparatus according to claim 10, wherein a character form for plotting the values of said first quantity is a rectangle whose long sides are parallel to said first direction, and a character form for plotting the values of said second quantity is a rectangle whose long sides are parallel to said second direction.

12. The photographing apparatus according to claim 7, wherein said indicating operation indicates a first graph and a second graph;

in said first graph, said second axis represents time, and said first axis represents the value of the hand-shake quantity;

in said second graph, said first axis represents time, and said second axis represents the value of the hand-shake quantity;

the values of said first quantity are plotted on said first graph; and

the values of said second quantity are plotted on said second graph.

13. The photographing apparatus according to claim 7, wherein said first axis is a horizontal axis and said second axis is a vertical axis.

14. The photographing apparatus according to claim 1, further comprising an anti-shake apparatus which has one of an imaging device and a hand-shake correcting lens, and corrects said hand-shake by moving one of said imaging device and said hand-shake correcting lens which is included in said anti-shake apparatus, in both said first and second directions.

15. The photographing apparatus according to claim 14, wherein said indicating unit indicates a range of an anti-shake operation by said anti-shake apparatus, in addition to indicating the values of said first and second quantities.

16. The photographing apparatus according to claim 1, wherein the values of said first and second quantities are indicated and layered on an image which is imaged by said photographing apparatus and is indicated on said indicating unit.

17. A portable apparatus, comprising:

a detecting unit which performs a detecting operation to detect a first quantity of a hand-shake of said portable apparatus in a first direction being perpendicular to an optical axis of an optical system of said photographing apparatus, and to detect a second quantity of said hand-shake in a second direction being perpendicular to said optical axis and said first direction; and

an indicating unit which performs an indicating operation to indicate said first and second quantities;

said detecting operation and said indicating operation being performed at every first time-interval;

said indicating operation which indicates said first and second quantities according to time, being performed by plotting values of said first and second quantities changed in accordance with said first time-interval, on a graph;

said graph having a first axis being parallel to said first direction and a second axis being parallel to said second direction; and

one of said first and second axes representing time, and another of said first and second axes representing the value of the hand-shake quantity.