Claims
- 1. A control device of a camera, comprising:
- (a) plurality of discontinuous program lines having a combination of a shutter time and an aperture value determined by object brightnesses, said plurality of discontinuous program lines having different picture image effects obtainable from respective program lines;
- (b) selecting means for selecting one program line out of said plurality of program lines, said means being able to select said one program line by operation from outside;
- (c) display means for displaying the selected program line, said means displaying the picture image effect obtainable by said selected program line in pictographs and/or letters;
- (d) signal generating means for generating an electrical signal corresponding to photographing information;
- (e) means for determining whether the picture image effect to be derived from the selected program line is obtainable or not on the basis of the electrical signal from said signal generating means;
- (f) means for forcibly varying a selected program line to another program line in said plurality of discontinuous program lines, said varying means being arranged to become operative when said determining means determines that the picture image effect is not obtainable; and
- (g) display control means for controlling a display operation of said display means by an output of said determining means, said display control means varying a display state of said display means when said determining means determines that the picture image effect cannot be obtained, wherein said control means forces said display means to flicker at a first or second frequency, said flickering at the first frequency being forced when the picture image effect is not obtainable due to a photographing information of the photographing lens, while said flickering at the second frequency is forced when the picture image effect is not obtainable due to an object brightness information.
- 2. A control device of a camera, comprising:
- (a) a plurality of discontinuous program lines having a combination of a shutter time and an aperture value determined by object brightnesses, said plurality of discontinuous program lines having different picture image effects obtainable from respective program lines;
- (b) selecting means for selecting one program line out of said plurality of program lines, said means being able to select said one program line by operation from outside;
- (c) display means for displaying the selected program line, said means displaying the picture image effect obtainable by said selected program line in pictographs and/or letters;
- (d) signal generating means for generating an electrical signal corresponding to photographing information;
- (e) means for determining whether the picture image effect to be derived from the selected program line is obtainable or not on the basis of the electrical signal from said signal generating means;
- (f) means for forcibly varying a selected program line to another program line in said plurality of discontinuous program lines, said varying means being arranged to become operative when said determining means determines that the picture image effect is not obtainable; and
- (g) display control means for controlling a display operation of said display means by an output of said determining means, said display control means varying a display state of said display means when said determining means determines that the picture image effect cannot be obtained, wherein said display control means controls changes in the display state of said display means differently when picture image effect is not obtainable due to photographic information and when the picture image effect is not obtainable due to an object brightness information.
- 3. A control device of a camera, comprising:
- (a) a plurality of program lines having a combination of a shutter time and an aperture value determined against object brightnesses, said plurality of program lines including a first program line mainly composed of a program line portion for maintaining a predetermined aperture value almost constant against changes in object brightness, and said first program line providing a picture image effect for obtaining an almost constant focal depth against changes in object brightness;
- (b) selecting means for selecting one program line out of said plurality of program lines, with at least said first program line being selectable by exterior operation;
- (c) first display means for displaying the selected said first program line, said means displaying the picture image effect obtainable by said selected first program line in pictographs and/or letters;
- (d) signal generating means for generating an electrical signal corresponding to photographing information;
- (e) means for determining whether the picture image effect to be derived from the selected said first program line is obtainable or not on the basis of the electrical signal from said signal generating means; and
- (f) second display means for displaying by an output of said determining means, said second display means displaying when said determining means determines that the picture image effect cannot be obtained, wherein said second display means performs different displays when the picture image effect is not obtainable due to a photographic information and when the picture image effect is not obtainable due to an object brightness information.
- 4. A control device of a camera, comprising:
- (a) a plurality of discontinuous program lines having a combination of a shutter time and an aperture value determined by object brightnesses, said plurality of discontinuous program lines having different picture image effects obtainable from respective program lines;
- (b) selecting means for selecting one program line out of said plurality of program lines, said means being able to select said one program line by operation from outside;
- (c) signal generating means for generating an electrical signal corresponding to a photographing lens information;
- (d) means for determining whether the picture image effect to be derived from the selected program line is obtainable or not on the basis of the electrical signal from said signal generating means; and
- (e) means for forcibly varying a selected program line to another program line in said plurality of discontinuous program lines, said varying means being arranged to become operative when said determining means determines that the picture image effect is not obtainable, wherein, for use as said photographing lens information, a minimum aperture value information is used.
- 5. A control device of a camera, comprising:
- (a) a plurality of discontinuous program lines having a combination of a shutter time and an aperture value determined by object brightnesses, said plurality of discontinuous program lines having different picture image effects obtainable from respective program lines;
- (b) selecting means for selecting one program line out of said plurality of program lines, said means being able to select said one program line by operation from outside;
- (c) signal generating means for generating an electrical signal corresponding to a photographing lens information;
- (d) means for determining whether the picture image effect to be derived from the selected program line is obtainable or not on the basis of the electrical signal from said signal generating means; and
- (e) means for forcibly varying a selected program line to another program line in said plurality of discontinuous program lines, said varying means being arranged to become operative when said determining means determines that the picture image effect is not obtainable, wherein, for use as said photographing lens information, a focal length information is used.
- 6. A control device of a camera, comprising:
- (a) a plurality of discontinuous program lines having a combination of a shutter time and an aperture value determined against object brightnesses, said plurality of discontinous program lines including:
- (1) a first program line mainly composed of a program line portion for maintaining a predetermined aperture value almost constant against changes in object brightness, said first program line providing a picture image effect for obtaining an almost constant focal depth against changes in object brightness;
- (2) a second program line mainly composed of a program line portion for changing both of the aperture value and the shutter time value against the change of the object brightness;
- (3) said first program line and said second program line being discontinuous;
- (b) selecting means for selecting one program line out of said plurality of discontinuous program lines, with at least said first program line being selectable by exterior operation;
- (c) signal generating means for generating an electrical signal corresponding to photographing information;
- (d) means for determining whether the picture image effect to be derived from the selected first program line is obtainable or not on the basis of the electrical signal from said signal generating means; and
- (e) means for forcibly varying the selected first program line to said second program line, said varying means being arranged to become operative when said determining means determines that the picture image effect is not obtainable.
- 7. A control device of a camera, comprising:
- (a) a plurality of discontinuous program lines having a combination of a shutter time and an aperture value determined against object brightnesses, said plurality of discontinuous program lines including:
- (1) a first program line composed mainly of a program line portion for maintaining a predetermined shutter time almost constant against changes in the object brightness, said first program line providing a picture image effect for obtaining an almost constant shutter time against changes in object brightness;
- (2) a second program line mainly composed of a program line portion for changing both of the aperture value and the shutter time value against the change of the object brightness;
- (3) said first program line and said second program line being discontinuous;
- (b) selecting means for selecting one program line out of said plurality of discontinuous program lines, with at least said first program line being selectable by exterior operation;
- (c) signal generating means for generating an electrical signal corresponding to photographing information;
- (d) means for determining whether the picture image effect to be derived from the selected first program line is obtainable or not on the basis of the electrical signal from said signal generating means; and
- (e) means for forcibly varying the selected first program line to said second program line, said varying means being arranged to become operative when said determining means determines that the picture image effect is not obtainable.
- 8. A control device according to claim 6, further comprising:
- display means for displaying by an output of said determining means, said display means displaying when said determining means determines that the picture image effect cannot be obtained.
- 9. A control device according to claim 7, further comprising:
- display means for displaying by an output of said determining means, said display means displaying when said determining means determines that the picture image effect cannot be obtained.
- 10. A control device according to claim 6, wherein said photographing information of said signal generating means includes information of variable aperture value of the photographing lens.
- 11. A control device according to claim 7, wherein said photographing information of said signal generating means includes information of variable aperture value of the photographic lines.
- 12. A control device according to claim 6, wherein said photographing information of said signal generating means includes information of brightness of an object.
- 13. A control device according to claim 7, wherein said photographing information of said signal generating means includes information of brightness of an object.
Priority Claims (2)
Number |
Date |
Country |
Kind |
57-216333 |
Dec 1982 |
JPX |
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57-216334 |
Dec 1982 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 559,220, filed Dec. 8, 1983, now abandoned.
US Referenced Citations (3)
Foreign Referenced Citations (1)
Number |
Date |
Country |
57-78033 |
May 1982 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
559220 |
Dec 1983 |
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