GB1577757A - Photographic camera with artificial illumination control - Google Patents
Photographic camera with artificial illumination control Download PDFInfo
- Publication number
- GB1577757A GB1577757A GB13202/77A GB1320277A GB1577757A GB 1577757 A GB1577757 A GB 1577757A GB 13202/77 A GB13202/77 A GB 13202/77A GB 1320277 A GB1320277 A GB 1320277A GB 1577757 A GB1577757 A GB 1577757A
- Authority
- GB
- United Kingdom
- Prior art keywords
- time delay
- source
- scene light
- artificial illumination
- flash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005286 illumination Methods 0.000 title claims description 58
- 239000003990 capacitor Substances 0.000 claims description 48
- 238000010791 quenching Methods 0.000 claims description 41
- 230000000977 initiatory effect Effects 0.000 claims description 32
- 238000010304 firing Methods 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 22
- 238000012163 sequencing technique Methods 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 20
- 230000004044 response Effects 0.000 claims description 8
- 230000002596 correlated effect Effects 0.000 claims description 4
- 230000003466 anti-cipated effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 240000007320 Pinus strobus Species 0.000 description 58
- 238000005266 casting Methods 0.000 description 11
- 230000010354 integration Effects 0.000 description 11
- 230000000875 corresponding effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000004804 winding Methods 0.000 description 8
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 230000000171 quenching effect Effects 0.000 description 6
- 230000001960 triggered effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000009877 rendering Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000881 depressing effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000000576 supplementary effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
- G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
- G03B2215/0503—Built-in units
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
- G03B2215/0514—Separate unit
- G03B2215/056—Connection with camera, e.g. adapter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stroboscope Apparatuses (AREA)
- Exposure Control For Cameras (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/674,840 US4058818A (en) | 1976-04-08 | 1976-04-08 | Fixed time delay quench strobe |
| US05/684,902 US4074288A (en) | 1976-04-08 | 1976-05-10 | Time delay quench strobe with improved fill-in flash performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1577757A true GB1577757A (en) | 1980-10-29 |
Family
ID=27101225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13202/77A Expired GB1577757A (en) | 1976-04-08 | 1977-03-29 | Photographic camera with artificial illumination control |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS52124332A (enrdf_load_stackoverflow) |
| CA (1) | CA1087433A (enrdf_load_stackoverflow) |
| DE (1) | DE2715829C2 (enrdf_load_stackoverflow) |
| FR (1) | FR2347700A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1577757A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072964A (en) * | 1976-05-13 | 1978-02-07 | Polaroid Corporation | Scene light responsive variable quench time delay for quench strobe |
| US4185905A (en) * | 1978-04-03 | 1980-01-29 | Polaroid Corporation | Dual purpose flash/strobe socket assembly for a photographic camera |
| US4192587A (en) * | 1978-11-13 | 1980-03-11 | Polaroid Corporation | Proportional fill flash |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1299218B (de) * | 1963-03-29 | 1969-07-10 | Polaroid Corp | Belichtungszeit-Steuervorrichtung fuer photographische Apparate |
| US3570381A (en) * | 1967-07-03 | 1971-03-16 | Konishiroku Photo Ind | Programmed electronic shutter |
| US3667357A (en) * | 1968-12-24 | 1972-06-06 | Minolta Camera Kk | Automatic control devices for a camera |
| DE1940616B2 (de) * | 1969-08-06 | 1975-11-06 | Loewe Opta Gmbh, 1000 Berlin | Schaltungsanordnung für Elektronenblitzgerät mit geregelter Lichtenergie |
| US3648104A (en) * | 1969-10-03 | 1972-03-07 | Bosch Photokino Gmbh | Electronic flash unit with preliminary flash for automatic timing |
| DE2123004C3 (de) * | 1970-05-11 | 1980-04-30 | Minolta Camera K.K., Osaka (Japan) | Kamera mit automatischer Belichtungssteuerung und einem Computerblitzlichtgerät |
| DE2130869B2 (de) * | 1970-06-23 | 1979-07-05 | Minolta Camera K.K., Osaka (Japan) | Kamera mit Computerblitzgerät |
| JPS5133284Y2 (enrdf_load_stackoverflow) * | 1971-06-22 | 1976-08-18 | ||
| US3776112A (en) * | 1972-08-11 | 1973-12-04 | Honeywell Inc | Adapter circuit for use with auto exposure camera |
| JPS50166U (enrdf_load_stackoverflow) * | 1973-05-02 | 1975-01-06 | ||
| JPS5038927U (enrdf_load_stackoverflow) * | 1973-08-01 | 1975-04-22 | ||
| JPS5314520Y2 (enrdf_load_stackoverflow) * | 1974-06-10 | 1978-04-18 | ||
| US3942183A (en) * | 1974-07-02 | 1976-03-02 | Polaroid Corporation | Camera with pivoting blades |
| US4008481A (en) * | 1975-10-03 | 1977-02-15 | Polaroid Corporation | Exposure control system with separate flash and ambient trigger levels |
-
1977
- 1977-03-29 GB GB13202/77A patent/GB1577757A/en not_active Expired
- 1977-04-05 FR FR7710219A patent/FR2347700A1/fr active Granted
- 1977-04-05 CA CA275,601A patent/CA1087433A/en not_active Expired
- 1977-04-07 JP JP3992777A patent/JPS52124332A/ja active Pending
- 1977-04-07 DE DE2715829A patent/DE2715829C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2715829C2 (de) | 1987-04-23 |
| CA1087433A (en) | 1980-10-14 |
| FR2347700B1 (enrdf_load_stackoverflow) | 1983-11-18 |
| JPS52124332A (en) | 1977-10-19 |
| DE2715829A1 (de) | 1977-10-20 |
| FR2347700A1 (fr) | 1977-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4023187A (en) | Exposure control system with fill flash race condition | |
| US4008448A (en) | Solenoid with selectively arrestible plunger movement | |
| US3953864A (en) | Camera device having a photographic flash device combined therewith | |
| US3568582A (en) | Electronic shutter | |
| US4317620A (en) | Variable proportional fill flash | |
| US4196988A (en) | Manual or automatic camera and electronic flash for use therewith | |
| US4058818A (en) | Fixed time delay quench strobe | |
| US4072964A (en) | Scene light responsive variable quench time delay for quench strobe | |
| US4302084A (en) | Automatic rangefinding device for use in a camera | |
| US4457602A (en) | Multiple light emission control system utilizing electronic flashes | |
| US4710012A (en) | Flash photography system | |
| US3610122A (en) | Shutter timing system | |
| US4008481A (en) | Exposure control system with separate flash and ambient trigger levels | |
| US3570381A (en) | Programmed electronic shutter | |
| GB1577757A (en) | Photographic camera with artificial illumination control | |
| US4057811A (en) | Quench strobe with predetermined quench rate | |
| GB2059608A (en) | Camera with proportional fill flash quench strobe | |
| JPH0738061B2 (ja) | 露出制御装置 | |
| US4040069A (en) | Fixed time delay circuit for quench strobe | |
| US4017873A (en) | Exposure control system with braking capability | |
| US4035813A (en) | Exposure control system for selectively determining exposure interval | |
| US3995286A (en) | Electronic strobe with optionally-operable controls | |
| US4311371A (en) | Exposure control system for camera | |
| US4272170A (en) | Photographic arrangement using various electronic flash devices | |
| US3748978A (en) | Exposure time controls for cameras operating with flash illumination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19970328 |