CN201812119U - Focusing device of large format camera - Google Patents
Focusing device of large format camera Download PDFInfo
- Publication number
- CN201812119U CN201812119U CN2010205013043U CN201020501304U CN201812119U CN 201812119 U CN201812119 U CN 201812119U CN 2010205013043 U CN2010205013043 U CN 2010205013043U CN 201020501304 U CN201020501304 U CN 201020501304U CN 201812119 U CN201812119 U CN 201812119U
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- CN
- China
- Prior art keywords
- slide plate
- group
- slide
- front group
- guide rail
- 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 - Fee Related
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Abstract
The utility model provides a focusing device of a large format camera, which comprises a main bottom board, a rear slide board set and a front slide board set. The main bottom board is provided with a guide rail groove for the front slide board set, and a guide rail groove for the rear slide board set, and a slide rail of the front slide board set and a slide rail of the rear slide board set are respectively positioned in the guide rail groove for the front slide board set and the guide rail groove for the rear slide board set on the main bottom board. A screw is disposed on the rear slide board set of the focusing device, and the rear slide board can move forward and backward along the screw under driving of the screw, thereby realizing precise focusing. The front slide board set is detachably mounted on the main bottom board of the focusing device, rough focusing function is realized by only manual sliding, so that a front extended slide board set is convenient to replace, and wider adjustment of the distance between a front lens set and a rear viewing set of the large format camera is guaranteed.
Description
Technical field
The utility model relates to the focus control of camera, relates in particular to the focus control of big picture camera.
Background technology
The focusing structure of big picture camera generally includes base plate, preceding group of slide plate, back group slide plate and the syndeton between them.At present, organize the focusing of slide plate screw rod before common big image camera focusing is often adopted on the market, perhaps front group of slide plate and rear group of slide plate all adopt the gear focusing, and the shortcoming of doing like this is that operation is very inconvenient when needing to change the prolongation rail.
Summary of the invention
The purpose of this utility model provides a kind of focus control of big format camera, and it is convenient to replacing and the prolongation of front group of slide plate.
For this reason, the utility model is by the following technical solutions: it comprises main floor, rear group of slide plate, front group of slide plate, described front group of slide plate connects the front lens frame of described camera, described rear group of slide plate connects the rear view-finder of described camera, be respectively equipped with the guide rail groove of front group of slide plate and the guide rail groove of rear group of slide plate on the described main floor, described front group of slide plate below both sides be respectively equipped with slide rail, described rear group of slide plate connects two one slide rails, the slide rail of the slide rail of described front group of slide plate and described rear group of slide plate lays respectively in the guide rail groove of the guide rail groove of the described front group of slide plate that main floor is provided with and rear group of slide plate, and can be respectively moves forward and backward along separately guide rail groove;
Also be provided with position-limit mechanism and the locking mechanism of described front group of slide plate on the described main floor, described position-limit mechanism and locking mechanism lay respectively at the both sides of described front group of slide plate; Described position-limit mechanism comprises the gathering sill of banking stop and banking stop, and the slide rail both sides of described front group of slide plate are provided with locating slot along its length, and an end of described banking stop can be placed in the locating slot in the slide rail outside of front group of slide plate; The retaining mechanism of described front group of slide plate comprises locking button and locking pressure plate.
When adopting technique scheme, further technical scheme below the utility model also can adopt or make up and adopt:
On the described rear group of slide plate screw rod can be installed, described rear group of slide plate can move forward and backward under screw rod drives, and realizes accurate focusing.
Because adopt the technical solution of the utility model, the focus control of big image camera of the present utility model arranges screw rod at rear group of slide plate, rear group of slide plate can move forward and backward at the drive lower edge of screw rod screw rod, realizes accurate focusing; Front group of slide plate then is installed on the main floor of focus control removably, only realize the function of rough focusing in the mode of manual push-and-pull, thereby made things convenient for change before group prolong slide plate so that the front lens group of big image camera and after the distance of finding a view between the group have bigger degree of regulation.And the utility model is simple in structure, and is easy to operate, is easy to realize.
Description of drawings
Fig. 1 is the structural representation of embodiment provided by the utility model when front group of slide plate and rear group of slide plate all are retracted main floor.
Fig. 2 is the structural representation of embodiment that the utility model provides when front group of slide plate and rear group of slide plate all are pulled outwardly out.
Fig. 3 is the preceding group of slide plate of embodiment that the utility model provides and the synoptic diagram of slide rail.
Embodiment
With reference to accompanying drawing 1,2.
The utility model comprises main floor 1, rear group of slide plate 2, front group of slide plate 3, front group of slide plate 3 connects the front lens frame 4 of camera, rear group of slide plate 2 connects the rear view-finder 5 of camera, be respectively equipped with the guide rail groove 30 of front group of slide plate 3 and the guide rail groove 20 of rear group of slide plate 2 on the main floor 1, front group of slide plate 3 below both sides be respectively equipped with slide rail 31a and 31b, rear group of slide plate 2 connects two one slide rail 21a and 21b, the slide rail 21a of the slide rail 31a of front group of slide plate and 31b and rear group of slide plate and 21b lay respectively in the guide rail groove 20 of the guide rail groove 30 of the front group of slide plate that main floor is provided with and rear group of slide plate, and can be respectively move forward and backward along separately guide rail groove.
The position-limit mechanism and the locking mechanism of group slide plate 3 before also being provided with on the main floor 1, the both sides of group slide plate 3 before described position-limit mechanism and locking mechanism lay respectively at; Described position-limit mechanism comprises the gathering sill 7 of banking stop 6 and banking stop 6, and slide rail 31a, the 31b of preceding group of slide plate is respectively equipped with locating slot 32,33 along its length in the outside, in the locating slot 32 before an end of banking stop 6 can be placed into outside the slide rail 31b of group slide plate; Can banking stop 6 is fixing in vertical direction with respect to main floor 1 by screw.
The latch mechanism of group slide plate 3 comprises locking button 100 and locking pressure plate 200 before described.Main floor 1 is provided with the locating slot of placing described locking pressure plate 200, the both sides of group slide plate 3 before locking pressure plate 200 and banking stop 6 lay respectively at; One end of locking pressure plate 200 stretches in the locating slot 33 in the slide rail 31a outside, and under the effect of locking button 100 slide rail 31a is compressed, thus group slide plate 3 before the location.
When needing to obtain big focal length, unclamp locking button 100 and locking pressure plate 200, the banking stop 6 of opposite side is outwards transferred to, the locating slot 32 of group slide plate slide rail before banking stop 6 is broken away from, then, front group of slide plate 3 and slide rail 31a and 31b are extracted out from guide rail groove 30, and the slide rail of changing suitable length gets final product.
On the rear group of slide plate 2 screw rod 8 can be installed, main floor 1 is provided with nut 9, and rear group of slide plate 2 can move forward and backward under screw rod 8 drives, and realizes accurate focusing.After being adjusted to suitable focal length, screw the fastening nut 12 and 13 in the main floor outside, can be with rear group of slide plate 2 location.
Claims (2)
1. the focus control of a big format camera, comprise main floor, rear group of slide plate, front group of slide plate, described front group of slide plate connects the front lens frame of described camera, described rear group of slide plate connects the rear view-finder of described camera, it is characterized in that: be respectively equipped with the guide rail groove of front group of slide plate and the guide rail groove of rear group of slide plate on the described main floor, described front group of slide plate below both sides be respectively equipped with slide rail, described rear group of slide plate connects two one slide rails, the slide rail of the slide rail of described front group of slide plate and described rear group of slide plate lays respectively in the guide rail groove of the guide rail groove that is located at described front group of slide plate on the main floor and rear group of slide plate, and can be respectively moves forward and backward along separately guide rail groove;
Also be provided with position-limit mechanism and the locking mechanism of described front group of slide plate on the described main floor, described position-limit mechanism and locking mechanism lay respectively at the both sides of described front group of slide plate; Described position-limit mechanism comprises the gathering sill of banking stop and banking stop, and the slide rail both sides of described front group of slide plate are provided with locating slot along its length, and an end of described banking stop can be placed in the locating slot of front group of slide plate both sides; The retaining mechanism of described front group of slide plate comprises locking button and locking pressure plate.
2. the focus control of big format camera as claimed in claim 1 is characterized in that: on the described rear group of slide plate screw rod can be installed, described rear group of slide plate can move forward and backward under screw rod drives, and realizes accurate focusing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205013043U CN201812119U (en) | 2010-08-23 | 2010-08-23 | Focusing device of large format camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205013043U CN201812119U (en) | 2010-08-23 | 2010-08-23 | Focusing device of large format camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812119U true CN201812119U (en) | 2011-04-27 |
Family
ID=43895060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205013043U Expired - Fee Related CN201812119U (en) | 2010-08-23 | 2010-08-23 | Focusing device of large format camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243353A (en) * | 2011-06-09 | 2011-11-16 | 江苏明富自动化科技股份有限公司 | Lengthened adjustable slider for lens fixed plates |
| CN112230491A (en) * | 2020-10-30 | 2021-01-15 | 广西代达科技有限公司 | Application method of technical camera capable of automatically focusing |
-
2010
- 2010-08-23 CN CN2010205013043U patent/CN201812119U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243353A (en) * | 2011-06-09 | 2011-11-16 | 江苏明富自动化科技股份有限公司 | Lengthened adjustable slider for lens fixed plates |
| CN112230491A (en) * | 2020-10-30 | 2021-01-15 | 广西代达科技有限公司 | Application method of technical camera capable of automatically focusing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20140823 |
|
| EXPY | Termination of patent right or utility model |