Image pick-up device

• US 4,599,657 A
• Filed: 12/23/1982
• Issued: 07/08/1986
• Est. Priority Date: 12/29/1981
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Kinoshita, Takao, Tanaka, Nobuyoshi, Kaji, Toshio, Takayama, Tsutomu, Tojo, Akihiko
• Primary Examiner(s): RICHARDSON, ROBERT
• Application Number:
  US06/452,500
• Time in Patent Office: 1,293 Days
• Field of Search: 358/335, 358/906, 358/213, 358/221, 358/209, 358/228, 360/33.1, 360/35.1
• US Class Current: 386/225
• CPC Class Codes: G03F 9/7088 Alignment mark detection, e.g. TTR, TTL, off-axis detection, array detector, video detection
• CPC Class Codes: H04N 1/0044 for image preview or review, e.g. to help the user position a sheet
• CPC Class Codes: H04N 1/2112 using still video cameras
• CPC Class Codes: H04N 1/212 Motion video recording combined with still video recording television signal recording H04N5/76
• CPC Class Codes: H04N 2101/00 Still video cameras
• CPC Class Codes: H04N 25/00 Circuitry of solid-state image sensors [SSIS]; Control thereof
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: Y10S 358/906 Hand-held camera with recorder in a single unit

Abstract

Disclosed is an image pick-up device which uses a charge transfer type solid state image pick-up device, and a shutter so as to form a high quality picture signal in which smear is prevented by prohibiting the incidence of the light on the device while the charge is transferred in the device. The device is driven by a clock signal for still photography in order to assure high quality picture information for one frame. The photographic parameters are automatically changed or the monitor is changed between the motion picture photography mode and the still photographing mode.

Claims

1. An image pick-up device comprising:

(a) solid-stage image pick-up means, having a light sensing portion for producing electrical information corresponding to optical information and a storage portion for storing the electrical information produced by the light sensing portion;

(b) control means for controlling the transfer of the electrical information from the sensing portion to the storage portion in the solid-state image pick-up means; and

(c) light shading means for shading the light sensing portion during transfer of the electrical information in the light sensing portion of the solid-state image pick-up means to the storage portion.

2. A device according to claim 1, wherein the control means transfers the electrical information formed in the light sensing portion of the solid-state image pick-up means to the storage portion periodically.

3. A device according to claim 2, wherein the control means are arranged for serially reading out the electrical information held in the storage portion.

4. A device according to claim 2, wherein said shading means is arranged to shade the light sensing portion outside the period for transferring the electrical information from the light sensing portion to the storage portion.

5. An image pick-up device comprising:

(a) image pick-up means for converting an optical image into an electrical information and having a light sensing portion and a storage portion;

(b) scanning means for periodically scanning the electrical information in the image pick-up means;

(c) switch means for switching on and off;

(d) timer means for starting to count the time of a predetermined phase of the scanning period of the scanning means after switching on the switching means, and for producing an output signal after lapse of the predetermined time from the start of the timer means;

(e) light shading means operating in accordance with the output of the timer means for allowing incidence light upon the image pick-up device until the output state of the timer means produces the signal and for preventing incidence of light upon the image pick-up means when the timer means produces the signal; and

(f) the electrical information formed in the image pick-up means after the start of the timer being transferred from the light sensing portion to the storage portion while incidence of light upon the image pick-up means is prevented by the light shading means.

6. A device according to claim 5, wherein the transfer timing is cynchronized with the periodic scanning time of the image pick-up means by the scanning means.

7. A device according to claim 6, wherein the scanning means stops the scanning of the image pick-up means till the transfer is carried out.

8. A device according to claim 5, further comprising:

(f) recording means for recording the output periodically obtained from the image pick-up means; and

(g) reproducing means for repeatedly reproducing the content of the recording means in response to start of the timer means.

9. A device according to claim 5, comprising:

(h) diaphragm means for controlling the amount of the light incidence upon the image pick-up means;

(i) setting means for presetting an aperture value of a diaphragm means; and

(j) control means for controlling the diaphragm means at the value preset by the setting means in response to switch on of the switch means.

10. A device according to claim 5, further comprising:

(k) a sample and hold means for scanning and holding brightness component of the output of the image pick-up means in synchronism with the scanning period of the scanning means; and

(l) gate means for stopping the sampling of the sample hold and means in response to the switch means.

11. An image pick-up device comprising:

(a) image pick-up means for converting an optical image into electrical information;

(b) shutter means for controlling light amount incident on said image pick-up means; and

(c) control means for scanning said image pick-up means for reading out the electrical information while said shutter means is shading said image pick-up means.

12. An image pick-up device according to claim 11, wherein the image pick-up means has a light sensing portion and a storage portion.

13. An image pick-up devide according to claim 12, in which said control means is arranged to scan said image pick-up means by transferring said image information from said light sensing portion to said storage portion.