CN100440025C - Camera regulator - Google Patents
Camera regulator Download PDFInfo
- Publication number
- CN100440025C CN100440025C CNB2004100886324A CN200410088632A CN100440025C CN 100440025 C CN100440025 C CN 100440025C CN B2004100886324 A CNB2004100886324 A CN B2004100886324A CN 200410088632 A CN200410088632 A CN 200410088632A CN 100440025 C CN100440025 C CN 100440025C
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- camera
- mensuration
- imaging apparatus
- card
- image
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- Studio Devices (AREA)
- Automatic Focus Adjustment (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Viewfinders (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
Abstract
Camera regulator to easily adjust a position on the imaging plane of an imaging element and a position on the focusing plane of a focusing screen to each other with high precision. A mirror unit 20 having a reference lens 13 and a subject image formed on the focusing screen of the mirror unit 20 is picked up by a video scope 30. When a quick-return mirror 22 is at a 1st position, an image of a chart 11 on the focusing screen 26 is picked up by the video scope 30 and when the quick-return mirror 22 is at a 2nd position, the image of the chart 11 is picked up by a CCD 37. The images acquired by the 1st and 2nd imaging operations are used to detect a relative position shift of the CCD 37 from the chart 11 and a relative position shift of the focusing screen from the chart 11.
Description
Technical field
The present invention relates to the position regulator of the focus(s)ing glass of digital single-lens reflex camera, be specifically related to adjust the device of position of the focusing surface of position on the imaging surface of imaging apparatus of digital single-lens reflex camera and focus(s)ing glass.
Background technology
In using the single-lens reflex camera of film, utilize the exposure area on the aperture decision film of camera shell.And the design view finder is so that the visual field of this exposure area and view finder is consistent.And in the camera of this use film, less make the exposure area special adjustment consistent with view finder.This is because in the structure of camera, only relies on assembly precision can guarantee in the deviation allowed band of exposure area and visual field.
On the other hand, in digital camera, the field frame that is located at the setting camera coverage of finder optical system constitutes on the face vertical with the optical axis of this finder optical system can adjust its position, even photographic optical system produces the offset of CCD relatively, by field frame is carried out the position adjustment, make the consistent technology of the setting camera coverage of the image pickup scope of CCD and field frame by known (for example, with reference to patent documentation 1).
Patent documentation 1 spy opens flat 11-15046 communique
But in digital single-lens reflex camera, the imaging apparatus of making a video recording (CCD) is fixed on the circuit substrate, and this circuit substrate is installed on the camera body.Therefore, compare with the film camera that utilizes camera body directly to limit the film position, the deviation that only relies on assembly precision to suppress camera watch region and view finder visual field in digital camera is very difficult thing.
And the size of the CCD of digital camera is generally less than film, so need be with higher precision with the position of CCD and the position alignment of view finder.
Summary of the invention
The present invention is exactly In view of the foregoing and proposes, and its purpose is, provide a kind of can be easily and accurately with the adjusting gear of the camera of the position alignment of the focusing surface of position on the imaging surface of imaging apparatus and focus(s)ing glass.
The adjusting gear of camera of the present invention is used to adjust and is built-in with focus(s)ing glass, moving reflector and photography with the main unit of the single-lens reflex camera of imaging apparatus, it is characterized in that having: be installed in the reference lens on the described main unit; Shooting images in the mensuration imaging apparatus of the shot object image on the described focus(s)ing glass; Be configured in the mensuration card in described reference lens the place ahead; The moving reflector control module is controlled described moving reflector, and is set the subject light beam by described reference lens is being imported the 1st position of described focus(s)ing glass or the 2nd position of avoiding with the light path of photography of imaging apparatus from described photography; The shooting action control unit, it carries out following actions, promptly, when described moving reflector is positioned at described the 1st position, move with the 1st shooting of the image of card by the described mensuration that described mensuration is taken on the described focus(s)ing glass with imaging apparatus, when described moving reflector is positioned at described the 2nd position, take of the 2nd shooting action of described mensuration with imaging apparatus with the image of card by described photography; Detecting unit, utilization detect the relative position skew that described photography is used card with the described relatively mensuration of imaging apparatus with the relative position skew and the described relatively mensuration of described focus(s)ing glass of card by each image that the described the 1st and the 2nd shooting action is obtained.
It is desirable in the adjusting gear of camera of the present invention, also to have alarm unit, when the arbitrary offset that detects by described detecting unit exceeds allowed band, carry out alarm indication.
It is desirable in the adjusting gear of camera of the present invention, also have zone decision unit, utilize the effective coverage of the image that described photography takes with imaging apparatus according to the output decision of described detecting unit.
It is desirable in the adjusting gear of camera of the present invention, described detecting unit uses imaging apparatus to use the position of card image with the described mensuration in the camera watch region of at least one side in the imaging apparatus with photographing by judging described mensuration, detects the relative position relation that described mensuration is used card image and described at least one side.
It is desirable in the adjusting gear of camera of the present invention, described detecting unit detects the relative position relation of described mensuration with card image and described at least one side by judging the center or the peripheral position of described mensuration with card image.
It is desirable in the adjusting gear of camera of the present invention, also to have storage control unit, in information stores the memory element during being located at described main unit of expression by the effective coverage of described decision unit decision.
According to the present invention, can provide can be easily and accurately with the adjusting gear of the camera of the position alignment of the focusing surface of position on the imaging surface of imaging apparatus and focus(s)ing glass.
Description of drawings
Fig. 1 (a) is the structural drawing of adjusting gear of the camera of expression an embodiment of the present invention, and Fig. 1 (b) is that the exemplary plot with card 11 is adjusted in expression.
Fig. 2 is expression by the camera shell 85 that main unit 20 has been installed and changes the block scheme of the structure of the Electrofax that camera lens 60 constitutes.
Fig. 3 is used to illustrate the mensuration action of adjusting gear of the camera of an embodiment of the present invention, is operator's the process flow diagram of action of the adjusting gear of description operation camera.
Fig. 4 is used to illustrate the mensuration action of adjusting gear of the camera of an embodiment of the present invention, is the process flow diagram of action of the personal computer 45 of the actual adjusting gear of carrying out camera of explanation.
Fig. 5 is used to illustrate the mensuration action of adjusting gear of the camera of an embodiment of the present invention, is the process flow diagram of the photography action of explanation camera.
Fig. 6 is the exemplary plot of focus(s)ing glass 26 of the field positions of expression view finder.
Fig. 7 is explanation CCD camera watch region 110 and the figure that adjusts the offset of using card 11.
Fig. 8 is the exemplary plot of the relation in explanation CCD camera watch region and trimming data zone.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.
Fig. 1 (a) is the structural drawing of adjusting gear of the camera of expression an embodiment of the present invention.
In Fig. 1 (a), on worktable 10, separate predetermined distance configuration as measuring adjustment with card with card 11 be used to adjust the unit maintenance anchor clamps 12 of main unit 20 described later.
Keeping being provided with on the anchor clamps 12 light from described card 11 in this unit imports the reference lens 13 of main unit 20 and is used to install the camera lens installing component 14 of this main unit 20.
Camera lens installing component 14 in described main unit 20 is installed main unit 20 by housing installing component 21.This main unit 20 is installed on the camera shell of single-lens reflex digital camera, under the state that is installed in described unit maintenance anchor clamps 12, as hereinafter described, adjusts the position of focus(s)ing glass.
The central portion of described returning quickly catoptron 22 is a semi-transparent semi-reflecting lens, and when this returning quickly catoptron 22 descended (shown position), a part of light beam saw through.And the light beam that is seen through is in secondary catoptron 32 reflections of being located at returning quickly catoptron 22 and import AF sensor 33.In addition, when described returning quickly catoptron 22 rose, secondary catoptron 32 was folded state.
When described returning quickly catoptron 22 rises (not shown), keep the light of reference lens 13 incidents in the anchor clamps 12 by the unit, arriving the photography that is installed on CCD substrate 36 by shutter 35 is CCD37 with imaging apparatus.The signal that obtains at this CCD37 is exported to personal computer (PC) 45 as the action control unit of making a video recording by the CCD interface circuit 41 camera interface circuits 40 in.
And, connect at personal computer 45 and to be used for the image that obtains at video camera 30 is presented at vision signal change-over circuit 50 on the personal computer 45.
Fig. 1 (b) is the exemplary plot of the above-mentioned adjustment of expression with card 11.For example, recording and narrating the frame shape datum line 11c～11f of the scope in crosswise datum line 11a, the 11b at the center of representing camera watch region and this photography zone of expression at this card 11.
Fig. 2 is expression by the camera shell 85 that described main unit 20 has been installed and changes the block scheme of the structure of the Electrofax that camera lens 60 constitutes.
On replacing camera lens 60, be provided with camera lens installing component 61, be used for this replacing camera lens 60 is installed in the housing installing component 21 of being located at camera shell 85.And, regulate with aperture 63 to be directed among the interior CCD37 of main unit 20 by photographic lens 62, light quantity from the light beam of not shown subject.
Camera lens CPU (LnsCPU) 64 is used to control the action of changing the each several part in the camera lens 60, within it portion to dispose record cell be flash memory (Flush) ROM65.In this flash rom 65, writing down the controlled variable of the program code of camera lens CPU64, the departure of focal position etc.
In addition, changing camera lens 60 has: lens motor-drive circuit 67, aperture motor-drive circuit 68, DC motor 69, lens actuating device 70, disk 71, photoelectricity interrupter (PI) 72, stepper motor 78, aperture driving mechanism 79.
Described lens motor-drive circuit 67 drives DC motor 69, and scioptics driving mechanism 70 moves photographic lens 62 on optical axis.And, utilize photoelectricity interrupter 72 to detect the disk 71 that rotates in prescribed direction by the driving of DC motor 69, obtain the amount of movement of photographic lens 62 thus.In addition, aperture motor-drive circuit 68 drives aperture 63 by drive stepping motor 78 by aperture driving mechanism 79.
On the other hand, in camera shell 85, the light by photographic lens 62 incidents in the described replacing camera lens 60 arrives eyepieces 87 in 22 reflections of returning quickly catoptron by focus(s)ing glass 26, pentaprism 86.Though not shown, when returning quickly catoptron 22 was avoided from light path, the light by photographic lens 26 imaged in the CCD37 that is installed on the CCD substrate 36 by shutter 35.
When described returning quickly catoptron 22 descended, the light beam that sees through this returning quickly catoptron 22 was in secondary catoptron 32 reflections and be directed into AF sensor 33.
In the system controller 90 that comprises image processing circuit (ASIC), various interface and control circuit, detecting unit, connecting light measuring circuit 91, mirror drive mechanism 92, imaging apparatus IF circuit 93, fast door drive mechanism 94, focus detection circuit 95, nonvolatile memory 96, image displaying circuit 99, data carrier 103, operating switch (SW) 104, and connecting flash memory (Flush) ROM100, SDRAM101 and SRAM102 by bus.This system controller 90 can communicate with camera lens CPU64 by the camera lens installing component 61 in housing installing component 21, the replacing camera lens 60.
In addition, though described mirror drive mechanism 92, imaging apparatus IF circuit 93, fast door drive mechanism 94, focus detection circuit 95, nonvolatile memory 96 are not shown in Fig. 1, be included in the main unit 20.
Described light measuring circuit 91 is the circuit that are used to measure the brightness of not shown subject and determine the time shutter.The rise and fall that mirror drive mechanism 92 carries out returning quickly catoptron 22 drive.
Imaging apparatus IF circuit 93 is to be used to drive the interface circuit that imaging apparatus is CCD37.Fast door drive mechanism 94 is the mechanisms that are used to control the action of shutter 35.
In addition, focus detection circuit 95 connects AF sensor 33, is according to the circuit that carries out focus detection by the light of photographic lens 62 incidents.Described nonvolatile memory 96 is used to store surface from housing installing component 21 to the data deviation amount of the distance (flange back) on CCD37 surface or the side-play amount of memory card 11, is made of EEPROM etc.
Described flash rom 100 storages are used to make the program of system controller 90 actions.And SDRAM101 is the storer of temporarily storing image data etc., and SRAM102 is the storer as various perform regions.The compressed view data of data carrier 103 records.
In addition, operating switch 104 utilizes a plurality of switches of operating in order to make this Electrofax carry out exercises to constitute.
In addition, the structure of main unit 20 is identical with described structure shown in Figure 1, gives same-sign to the part identical with Fig. 1, omits its diagram and explanation.
Below, with reference to the mensuration action of the adjusting gear of the camera of flowchart text an embodiment of the present invention of Fig. 3 and Fig. 5.
Fig. 3 is operator's the process flow diagram of action of the adjusting gear of this camera of description operation.
After beginning to operate the position regulator of focus(s)ing glass, at first, at step S1, main unit 20 is installed in the unit by housing installing component 21 and camera lens installing component 14 and keeps on the anchor clamps 12.Then, at step S2, carry out field positions by personal computer 45 and measure program.
Finish the mensuration of field positions at step S3 and move, change step S4 over to, main unit 20 is removed from lens holding jig 12.Then, at step S5, judge that by video camera 30 field positions of view finder is whether in regulatory specifications on the picture of personal computer 45.Herein, if in specification, change step S6 over to, if outside specification, change step S8 over to.
Fig. 6 is the exemplary plot of focus(s)ing glass 26 of the field positions of expression view finder.In focus(s)ing glass 26, for example represent that illustrated three kinds focus on target 120a, 120b, 120c.According to these datum line 11a～11f that focuses on target 120a, 120b, 120c and card 11 (with reference to Fig. 1 (b)), obtain the side-play amount of focus(s)ing glass 26.For example, if frame shape datum line 11a～11f enters in the focus(s)ing glass 26, we can say that then above-mentioned field positions is in specification.
At step S6, judge the offset that is installed in the CCD37 on the main unit 20 by CCD substrate 36.As a result, if the offset of CCD37 in regulatory specifications, the offset of ascending the throne move described later can the scope of electric correction in, then change step S7 over to, this main unit 20 is transported to the assembly process of back.That is,, change the assembly process of back when having only all in specification at above-mentioned steps S5 and S6.
On the other hand, in arbitrary step of above-mentioned steps S5 or S6, if field positions or offset outside specification, then can not be carried out electric correction described later.Therefore, change step S8 over to, this main unit 20 is returned assembly process.
Like this, the end operation person is to the camera adjustment.
Fig. 4 is the process flow diagram of action of the personal computer 45 of the actual adjusting gear of carrying out camera of explanation.
At the step S2 of the process flow diagram of above-mentioned Fig. 3, the operator starts field positions and measures program, begins to carry out this process flow diagram.That is, at the time point that this program begins, the main unit 20 that needs to adjust is in the state that is installed on the lens holding jig 12.
At first, at step S11, the returning quickly catoptron 22 in the main unit 20 is driven to not shown lifting position (avoiding the position) by the catoptron rising/decline control circuit 43 in the camera interface circuits 40.Then, at step S12, send the exposure commencing signal to CCD37 by CCD interface circuit 41.In addition, by shutter control circuit 42 shutter 35 is only opened the stipulated time, thereby exposed.
When end exposure, at follow-up step S13, returning quickly catoptron 22 is driven to down position (with reference to Fig. 1 (a)) by catoptron rising/decline control circuit 42.At step S14, read view data from CCD37.
In addition, at step S15, according to the view data of reading from described CCD37 calculate card 11 middle position, be the position of the cross section of crosswise datum line 11a, the 11b shown in Fig. 1 (b).At step S16, calculate the position of described card 11 and the side-play amount of CCD37, this side-play amount is stored in the nonvolatile memory telecommunication circuit 44 in the camera interface circuits 40.
For example, as shown in Figure 7, in the camera watch region 110 of CCD37,, be benchmark with this imagination coordinate according to setting X-axis, Y-axis among the figure shown in the dot-and-dash line, obtain side-play amount with the center of card 11.Imaginary reference coordinate is made as (X0, Y0), the coordinate of the cross section of above-mentioned crosswise datum line 11a, 11b is made as (Xc, Yc), the position of the card 11 of this moment and the side-play amount of CCD37 become Xc, Yc.This side-play amount is stored in the described nonvolatile memory telecommunication circuit 44.
Then, at step S17, whether the offset of judging described CCD37 is in the specification value scope of regulation., only when described offset is outside above-mentioned scope, change step S18 over to herein, on the monitor of personal computer 45, carry out alarm indication.The operator judges CCD offset (with reference to step S6 of Fig. 3) outside specification according to this alarm indication.
At step S19, read view data from video camera 30.At follow-up step S20, calculate the side-play amount (with reference to Fig. 8) of the position of the position of card 11 and focus(s)ing glass 26 according to above-mentioned view data of reading.
Then, at step S21, judge that the result is if described offset finishes this program in specification value in the specification value the scope whether offset of the focus(s)ing glass 26 that this step S20 calculates is stipulating.On the other hand, if described offset not in specification value, changes step S22 over to, on the monitor of personal computer 45, carry out alarm indication.The operator judges the field positions (with reference to step S6 of Fig. 3) outside specification of view finder according to this alarm indication.
Below, with reference to the photography action of the camera of the flowchart text present embodiment of Fig. 5.In addition, this photography action is by system controller 90 controls.
At first, at step S31, judge the release-push in the operating operation switch 104 whether.If this release-push is operated,, calculate the side-play amount of focus according to the output of AF sensor 33 at follow-up step S32.
At step S33, according to the side-play amount driving DC motor 69 of the focus of calculating, the position of scioptics driving mechanism 70 control photographic lenss 62.Then, at step S34, by fast door drive mechanism 94 and aperture driving mechanism 79 control shutter 35 and apertures 36, CCD37 light quantity is according to the rules exposed.
At step S35, read the view data that obtains by CCD37.This view data of reading is temporarily stored among the SDRAM101.And, read the side-play amount of the CCD position that is stored in the nonvolatile memory 96 at the step S6 of process flow diagram shown in Figure 4 at step S36.
At step S37, according to the side-play amount of reading, from the necessary area data of described view data finishing.In addition, at step S38, be converted into the regulation file according to the data of being repaired, this data converted is stored in the data carrier 103.
Fig. 8 represents the camera watch region of above-mentioned CCD and repairs the exemplary plot that concerns in zone.Trimming data zone 112 is as shown shown in the oblique line portion, forms the zone narrower and small than CCD camera watch region 110.And as mentioned above, the side-play amount of the cross section of datum line becomes Xc, Yc.Therefore, utilize, obtain each location of pixels of CCD camera watch region 110 of each position in corresponding trimming data zone 112 based on the offset X c of the cross section of this datum line, the adjustment amount of Yc.
Like this, finish the mensuration action of the position regulator of camera.
In addition, in the above-described embodiment, carry out in the action of personal computer 45 of adjusting gear of camera, after the offset of judging CCD, judge the offset of focus(s)ing glass, but be not limited thereto, also can constitute according to opposite order in reality.
According to the present invention, can provide easily a kind of and accurately with the adjusting gear of the camera of the position alignment of the focusing surface of position on the imaging surface of imaging apparatus and focus(s)ing glass.
Claims (6)
1. the adjusting gear of a camera is used to adjust and is built-in with focus(s)ing glass, moving reflector and the photography main unit with the single-lens reflex camera of imaging apparatus, it is characterized in that having:
Be installed in the reference lens on the described main unit;
Shooting images in the mensuration imaging apparatus of the shot object image on the described focus(s)ing glass;
Be configured in the mensuration card in described reference lens the place ahead;
The moving reflector control module is controlled described moving reflector, and is set the subject light beam by described reference lens is being imported the 1st position of described focus(s)ing glass or the 2nd position of avoiding with the light path of photography of imaging apparatus from described photography;
The shooting action control unit, it carries out following actions, promptly, when described moving reflector is positioned at described the 1st position, move with the 1st shooting of the image of card by the described mensuration that described mensuration is taken on the described focus(s)ing glass with imaging apparatus, when described moving reflector is positioned at described the 2nd position, take of the 2nd shooting action of described mensuration with imaging apparatus with the image of card by described photography;
Detecting unit, utilization detect the relative position skew that described photography is used card with the described relatively mensuration of imaging apparatus with the relative position skew and the described relatively mensuration of described focus(s)ing glass of card by each image that the described the 1st and the 2nd shooting action is obtained.
2. the adjusting gear of camera according to claim 1 is characterized in that, also has alarm unit, carries out alarm indication when the arbitrary offset that detects by described detecting unit exceeds allowed band.
3. the adjusting gear of camera according to claim 1 is characterized in that, also has zone decision unit, utilizes the effective coverage of the image that described photography takes with imaging apparatus according to the output decision of described detecting unit.
4. the adjusting gear of camera according to claim 1, it is characterized in that, described detecting unit uses imaging apparatus to use the position of card image with the described mensuration in the camera watch region of at least one side in the imaging apparatus with photographing by judging described mensuration, detects the relative position relation that described mensuration is used card image and described at least one side.
5. the adjusting gear of camera according to claim 4, it is characterized in that, described detecting unit detects the relative position relation of described mensuration with card image and described at least one side by judging the center or the peripheral position of described mensuration with card image.
6. the adjusting gear of camera according to claim 3 is characterized in that, also has storage control unit, in information stores the memory element during being located at described main unit of expression by the effective coverage of described decision unit decision.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003377184 | 2003-11-06 | ||
| JP2003377184A JP2005142837A (en) | 2003-11-06 | 2003-11-06 | Adjusting device for camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1614500A CN1614500A (en) | 2005-05-11 |
| CN100440025C true CN100440025C (en) | 2008-12-03 |
Family
ID=34687989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100886324A Expired - Fee Related CN100440025C (en) | 2003-11-06 | 2004-11-05 | Camera regulator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005142837A (en) |
| CN (1) | CN100440025C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308052A (en) * | 2009-02-04 | 2012-01-04 | 博奈提锁具股份公司 | Locking device with magnetic actuation for doors |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006323273A (en) * | 2005-05-20 | 2006-11-30 | Olympus Imaging Corp | Digital camera |
| JP2007243561A (en) * | 2006-03-08 | 2007-09-20 | Olympus Imaging Corp | One-eye reflex camera |
| JP2008109467A (en) * | 2006-10-26 | 2008-05-08 | Nikon Corp | Camera |
| JP4706728B2 (en) * | 2008-07-11 | 2011-06-22 | ソニー株式会社 | Imaging device and focusing screen replacement mechanism |
| US9366839B2 (en) * | 2012-11-01 | 2016-06-14 | Sharp Kabushiki Kaisha | Position adjustment device and position adjustment method |
| JP2015004742A (en) * | 2013-06-19 | 2015-01-08 | シャープ株式会社 | Position adjusting mechanism for imaging element |
| JP6206127B2 (en) * | 2013-11-26 | 2017-10-04 | 株式会社ニコン | Imaging apparatus and adjustment method |
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|---|---|---|---|---|
| JP2001281751A (en) * | 2000-03-31 | 2001-10-10 | Olympus Optical Co Ltd | Single lens reflex camera |
| JP2002237993A (en) * | 2001-02-09 | 2002-08-23 | Asahi Optical Co Ltd | Single-lens reflex electronic still camera |
| JP2002290826A (en) * | 2001-03-28 | 2002-10-04 | Minolta Co Ltd | Digital camera |
| JP2003101827A (en) * | 2001-09-21 | 2003-04-04 | Canon Inc | Image pickup device and its method |
| JP2003140246A (en) * | 2001-11-02 | 2003-05-14 | Canon Inc | Camera |
| US6591065B1 (en) * | 2001-01-17 | 2003-07-08 | Tamron Co., Ltd. | Single-lens reflex camera having a focusing detection sensor capable of calibrating, and a viewfinder |
-
2003
- 2003-11-06 JP JP2003377184A patent/JP2005142837A/en active Pending
-
2004
- 2004-11-05 CN CNB2004100886324A patent/CN100440025C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001281751A (en) * | 2000-03-31 | 2001-10-10 | Olympus Optical Co Ltd | Single lens reflex camera |
| US6591065B1 (en) * | 2001-01-17 | 2003-07-08 | Tamron Co., Ltd. | Single-lens reflex camera having a focusing detection sensor capable of calibrating, and a viewfinder |
| JP2002237993A (en) * | 2001-02-09 | 2002-08-23 | Asahi Optical Co Ltd | Single-lens reflex electronic still camera |
| JP2002290826A (en) * | 2001-03-28 | 2002-10-04 | Minolta Co Ltd | Digital camera |
| JP2003101827A (en) * | 2001-09-21 | 2003-04-04 | Canon Inc | Image pickup device and its method |
| JP2003140246A (en) * | 2001-11-02 | 2003-05-14 | Canon Inc | Camera |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308052A (en) * | 2009-02-04 | 2012-01-04 | 博奈提锁具股份公司 | Locking device with magnetic actuation for doors |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005142837A (en) | 2005-06-02 |
| CN1614500A (en) | 2005-05-11 |
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Granted publication date: 20081203 Termination date: 20161105 |