Claims
- 1. A camera, capable of being loaded with a film having a leader-end and a trailer-end, having information detecting means for detecting frame information in a record portion provided for each frame of a film loaded in said camera, and which performs exposure on an unexposed frame of the film, said camera comprising:
- a judgement circuit for judging whether a frame of a film is exposed or not based on information detected by the information detecting means;
- unexposed frame detecting means for detecting, based on a judgement result of said judgement circuit, a first leader-end unexposed frame of film from the leader end of the film and a first trailer-end unexposed frame of film from the trailer-end of the film;
- an exposure control circuit for controlling successive exposures from the first trailer-end unexposed frame of film detected by said unexposed frame detecting means to the first leader-end unexposed frame of film detected by said unexposed frame detecting means, or from the first leader-end unexposed frame of film detected by said unexposed frame detecting means to the first trailer-end unexposed frame of film detected by said unexposed frame detecting means;
- a frame number count circuit for counting frame numbers in the process of film feeding;
- a frame number detecting circuit for detecting, based on the frame number counted by said frame number count circuit, a frame number corresponding to a first leader-end unexposed frame and a frame number corresponding to a first trailer-end unexposed frame which are detected by said unexposed frame detecting means;
- a calculation circuit for calculating, based on the frame number detected by said frame number detecting circuit, an exposure order number representing an exposure order that sequentially follows a number of previously exposed frames; and
- record control means for recording the exposure order number calculated by said calculation circuit in the record portion of each frame of film.
- 2. A camera according to claim 1, wherein said calculation circuit calculates an exposure order number of a frame of film to be exposed after exposure of the previously exposed frames of film, the exposure order number sequentially following the number of all the previously exposed frames of film, based on frame numbers corresponding to the first leader end unexposed frame of film and the first trailer-end unexposed frame of film out of frame numbers corresponding to respective frames of film, and on a total number of frames of film.
- 3. A camera, capable of being loaded with a film cartridge having a film with a leader-end and a trailer-end, having information detecting means for detecting frame information in a record portion provided for each frame of a film loaded in said camera, and which performs exposure on an unexposed frame of the film, said camera comprising:
- first feed control means for successively feeding a loaded film from the leader-end portion of the film in such a direction that frames on the trailer-end of the film are drawn out of the cartridge;
- a judgement circuit for judging whether each frame of the film is exposed or not, based on frame information detected by the information detecting means upon feeding of the film by said first feed control means; and
- control means for controlling exposure of each frame of the film, the exposure control being based on the frame information of the first unexposed frame from the leader-end of the film as judged by said judgement circuit and frame information of the last successively exposed frame from the trailer-end of the film as judged by said judgement circuit from the first unexposed frame from the leader-end of the film to a frame immediately adjacent, on the leader-end side of the film, to the last successively exposed frame from the trailer-end of the film, or from the frame immediately adjacent, on the leader-end side of the film, to the last successively exposed frame from the trailer-end of the film to the first unexposed frame from the leader-end of the film.
- 4. A camera according to claim 3, further comprising second feed control means for feeding the film into the film cartridge up to the first unexposed frame from the trailer end of the film after completion of the feed operation by said first feed control means, whereby the first unexposed frame from the trailer end of the film is positioned at an exposure position.
- 5. A camera according to claim 3, further comprising a calculation circuit for calculating a number of unexposed frames, based on the frame information of the first unexposed frame from the leader end of the film and the last successively exposed frame from the trailer end of the film, and a display circuit for displaying the number of unexposed frames calculated by said calculation circuit.
- 6. A camera, capable of being loaded with a film cartridge having a film with a leader-end and a trailer-end, having information detecting means for detecting frame information in a record portion provided for each frame of a film loaded in said camera, and which performs exposure on an unexposed frame of the film, said camera comprising:
- first feed control means for successively feeding a loaded film from the leader-end portion of the film in such a direction that frames on the trailer-end of the film are drawn out of the cartridge;
- a judgement circuit for judging whether each frame of the film is exposed or unexposed, based on frame information detected by the information detecting means upon feeding of the film by said first feed control means; and
- an exposure control circuit for controlling successive exposures from a first unexposed frame from the leader-end of the film to a frame immediately adjacent, on the leader-end side of the film, to a last successively exposed frame from the trailer-end of the film, or from the frame immediately adjacent, on the leader-end side of the film, to the last successively exposed frame from the trailer-end of the film to the first unexposed frame from the leader-end of the film on the basis of a judgement result by said judgement circuit.
- 7. A camera according to claim 6, further comprising a calculation circuit for calculating a number of unexposed frames, based on frame information of a frame immediately adjacent, on the leader-end side of the film, to the first unexposed frame from the leader end of the film as judged by said judgement circuit and frame information of the last successively exposed frame from the trailer end of the film as judged by said judgment circuit, and a display circuit for displaying the number of unexposed frames calculated by said calculation circuit.
- 8. A camera according to claim 6, further comprising a display circuit for displaying at least one of frame numbers of unexposed frames and frame numbers of exposed frames, based on frame information of a frame immediately adjacent on the leader-end side of the film to the first unexposed frame from the leader end of the film as judged by said judgment circuit and frame information of the last successively exposed frame from the trailer end of the film as judged by said judgement circuit.
- 9. A camera according to claim 6, wherein the camera comprises display means for displaying at least one of which frames are the exposed frames on the basis of the judgement result and for displaying which frames are the unexposed frames on the basis of the judgement result.
- 10. A camera, capable of being loaded with a film having a leader end and a trailer end, having information detecting means for detecting frame information in a record portion provided for each frame of a film loaded in said camera, and which performs exposure on an unexposed frame of the film, said camera comprising:
- a judgement circuit for judging whether each frame of film is exposed or unexposed, based on the frame information; and
- a calculation circuit for calculating a number of unexposed frames based on a judgement result of said judgement circuit; and
- display means for displaying the number of unexposed frames.
- 11. A camera, capable of being loaded with a film cartridge having a film with a leader end and a trailer end, having information detecting means for detecting frame information in a record portion provided for each frame of a film loaded in said camera, and which performs exposure on an unexposed frame of the film, said camera comprising:
- first feed control means for successively feeding a loaded film from the leader-end portion of the film in such a direction that frames on the trailer-end of the film are drawn out of the cartridge;
- a first judgement circuit for judging whether each frame of the film is exposed or not, based on frame information detected by the information detecting means upon feeding of the film by said first feed control means;
- a second judgement circuit for judging whether a number of successive unexposed frames, which is judged during feeding of the film by said first feed control means after said first judgement circuit judges a first unexposed frame of film, is smaller than a predetermined value; and
- a first processing circuit for processing an unexposed frame as an exposed frame if said second judgement circuit judges that the number of successive unexposed frames is smaller than the predetermined value.
- 12. A camera according to claim 11, further comprising:
- a second processing circuit that processing as unexposed frames, all frames except for frames judged as exposed by said first judgement circuit and unexposed frames processed as exposed frames according to a judgment result of said first processing circuit.
- 13. A camera according to claim 12, further comprising exposure control means for effecting exposure control on each frame processed as an unexposed frame by said second processing circuit.
- 14. A camera according to claim 13, further comprising inhibiting means for making said exposure control means nonoperative if said first processing circuit is operated more than a predetermined number of times.
- 15. A camera, capable of being loaded with a film cartridge having a film with a leader end and a trailer end, having information detecting means for detecting frame information in a record portion provided for each frame of a film loaded in said camera, and which performs exposure on an unexposed frame of the film, said camera comprising:
- first feed control means for successively feeding a loaded film from the leader-end portion of the film in such a direction that frames on the trailer-end of the film are drawn out of the cartridge;
- a judgement circuit for judging whether each frame of the film is exposed or not, based on frame information detected by the information detecting means upon feeding of the loaded film by said first feed control means; and
- an abnormal judgement circuit for giving a judgement of abnormal operation if, after said judgement circuit has judged at least a first predetermined number of successive frames as unexposed, said judgement circuit judges a second predetermined number of successive frames as unexposed following at least one frame judged as exposed.
- 16. A camera, capable of being loaded with a film cartridge having a film with a leader end and a trailer end, having information detecting means for detecting frame information in a record portion provided for each frame of a film loaded in said camera, which performs exposure on an unexposed frame of the film, said camera comprising:
- first feed control means for successively feeding the loaded film from the leader-end portion of the film in such a direction that frames on the trailer end of the film are drawn out of the cartridge;
- a judgement circuit for judging whether each frame of the film is exposed or not, based on the frame information detected by the information detecting means upon feeding of the film by said first feed control means; and
- an abnormal judgement circuit for providing a judgement of abnormal operation if, in film feeding after said judgment circuit judges a frame as exposed, frames judged as unexposed are discontinuously present.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4-175074 |
Jun 1992 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 08/073,071 filed Jun. 8, 1993 now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (4)
Number |
Date |
Country |
4-171433 |
Jun 1992 |
JPX |
4-257837 |
Sep 1992 |
JPX |
WO90-04225 |
Apr 1990 |
WOX |
WO90-04204 |
Apr 1990 |
WOX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
73071 |
Jun 1993 |
|