Claims
- 1. A camera system having a camera unit and a lens unit detachably mounted on said camera unit, both said units being so arranged that a controlled object on the lens unit side is controlled by said camera unit by transmissions to said lens unit, said system comprising:
- A) control information generating means in said camera unit for generating control information for said controlled object and outputting said control information at a predetermined interval;
- B) transmitting means for transmitting said outputted control information to said lens unit at said predetermined interval;
- C) operation means in said lens unit for decoding the control information transmitted from said camera unit and converting each of the control information into a plurality of driving values for driving said controlled object by dividing an amount of driving for said controlled object corresponding to said control information into said plurality of driving values;
- D) setting means for setting a dividing number of said amount of driving; and
- E) control means for driving said controlled object a plurality of times corresponding to said dividing number within the predetermined interval based on the plurality of driving values output by said operation means.
- 2. A camera system according to claim 1, wherein said control information are transmitted in a predetermined communication period from said camera unit to said lens unit, and said given interval corresponds to the duration of said communication period.
- 3. A camera system according to claim 2, wherein said operation means compares the control information by comparing the control information transmitted from said camera unit with the driving condition of said controlled object, and said control means drives said controlled object by performing interruption processing said plurality of times based on said driving values.
- 4. A camera system according to claim 2, wherein said communication period corresponds to a vertical sync signal.
- 5. A camera system according to claim 1, wherein said controlled object is an iris.
- 6. A camera system according to claim 1, wherein said dividing number set by said setting means is changeable.
- 7. A lens unit detachably mounted on a camera unit, comprising:
- A) operation means for receiving and decoding control information transmitted from said camera unit at a predetermined interval and for converting the decoded control information into a plurality of driving values for driving a controlled object by dividing an amount of driving for said controlled object corresponding to each of the control information into said plurality of driving values;
- B) setting means for setting a dividing number of said amount of driving; and
- C) control means for driving said controlled object a plurality of times corresponding to said dividing within the predetermined interval based on the plurality of driving values output by said operation means.
- 8. A lens unit according to claim 7, wherein said control information is transmitted in a given communication period from said camera unit to said lens unit, and said predetermined interval corresponds to the duration of said communication period.
- 9. A lens unit according to claim 7, wherein said operation means compares the control information transmitted from said camera unit with the driving condition of said controlled object, and said control means drives said controlled object by performing interruption processing said plurality of times based on said driving values.
- 10. A lens unit according to claim 7, wherein said controlled object is an iris.
- 11. A lens unit according to claim 7, wherein:
- the number of said plurality of driving values is equal to or greater than 2.
- 12. A lens unit according to claim 11, wherein said operation means operates said plurality of driving values by comparing the control information transmitted from said camera unit with the driving condition of said controlled object, and said control means drives said controlled object by performing interruption processing n times based on said plurality of driving values.
- 13. A lens unit according to claim 11, wherein said controlled object is an iris.
- 14. A lens unit according to claim 7, wherein said dividing number set by said setting means is changeable.
- 15. An image pickup apparatus comprising:
- A) master-side control means for detecting an operation state of an image picking-up system to generate control information and outputting said control information at a predetermined interval;
- B) operation changing means for changing the operation state of said image picking-up system;
- C) slave-side control means for controlling the operation state of said image picking-up system by the control information output by said master-side control means so as to drive said operation changing means n times within the predetermined interval to attain the change of the operation state of said image picking-up system by dividing an amount of driving for said image picking-up corresponding to said control information into n driving values for changing the operation state, wherein n is an integer equal to or greater than 2; and
- D) setting means for setting a dividing number of said amount of driving.
- 16. An image pickup apparatus according to claim 15, wherein said slave-side control means includes operation means for obtaining said driving values by comparing the control information output by said master-side control means with a condition of said operation changing means.
- 17. An image pickup apparatus according to claim 15, wherein said master-side control means is a video camera, and said predetermined interval corresponds to a vertical sync signal.
- 18. An image pickup apparatus according to claim 17, wherein said operation changing means is iris driving means.
- 19. An image pickup apparatus according to claim 15, wherein said dividing number set by said setting means is changeable.
- 20. An image pickup apparatus comprising:
- A) exposure changing means for varying exposure;
- B) operation means for operating and outputting control information of said exposure changing means in a predetermined interval;
- C) control means for controlling said exposure changing means by the control information output by said operation means so as to drive said exposure changing means n times within said predetermined interval by dividing an amount of driving for said exposure changing means corresponding to said control information into n driving values, wherein n is an integer equal to or greater than 2; and
- D) setting means for setting a dividing number of said amount of driving.
- 21. An image pickup apparatus according to claim 20, wherein said control means performs said controls extending over n times by utilization of interruption processing.
- 22. An image pickup apparatus according to claim 20, wherein said dividing number set by said setting means is changeable.
- 23. A camera comprising:
- A) control information generating means for generating control information for a controlled object and outputting said control information and a predetermined interval;
- B) transmitting means for transmitting said outputting control information to a lens unit detachably mounted on said camera at said predetermined interval;
- wherein said lens unit comprising:
- operation means for said lens unit for decoding the control information transmitted from said camera and converting each of the control information into a plurality of driving values for driving said controlled object to dividing values;
- setting means for setting a dividing number of said amount of driving; and
- control means for driving said controlled object a plurality of times corresponding to said dividing number within the predetermined interval based on the plurality of driving values output by said operation means.
- 24. A camera according to claim 23, wherein said dividing number set by said setting means is changeable.
- 25. A camera system comprising:
- A) a master-side microcomputer for detecting an image pickup operation state to generate control information and outputting said control information at a predetermined interval;
- B) operation changing means for changing said image pickup operation state;
- C) a slave side microcomputer for controlling said image pickup operation state by the control information output by said master-side microcomputer so as to drive said operation changing means a plurality of times within the predetermined interval to attain the change of said image pickup operation state by dividing an amount of driving of said operation changing means corresponding to said control information into a plurality of driving values for changing said image pickup operation state; and
- D) setting means for setting a dividing number of said amount of driving.
- 26. A camera system according to claim 25, wherein said control information are transmitted in a given communication period from said master side microcomputer to said slave-side microcomputer, and said predetermined interval corresponds to the duration of said communication period.
- 27. A camera system according to claim 26, wherein said slave-side microcomputer includes operation means for obtaining said driving values by comparing the control values output by said master-side microcomputer with a condition of said operation changing means.
- 28. A camera system according to claim 27, wherein said operation changing means is iris driving means.
Priority Claims (2)
Number |
Date |
Country |
Kind |
3-090149 |
Apr 1991 |
JPX |
|
3-220131 |
Aug 1991 |
JPX |
|
Parent Case Info
This is a continuation application under 37 CFR 1.62 of prior application Ser. No. 08/271,578, filed Jul. 7, 1994, abandoned, which is a continuation of Ser. No. 07/870,947, filed Apr. 20, 1992, abandoned.
US Referenced Citations (5)
Continuations (2)
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Number |
Date |
Country |
Parent |
271578 |
Jul 1994 |
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Parent |
870947 |
Apr 1992 |
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