CN212456424U - Two segmentation focusing lamps - Google Patents
Two segmentation focusing lamps Download PDFInfo
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- CN212456424U CN212456424U CN202020903693.6U CN202020903693U CN212456424U CN 212456424 U CN212456424 U CN 212456424U CN 202020903693 U CN202020903693 U CN 202020903693U CN 212456424 U CN212456424 U CN 212456424U
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Abstract
A two-section focusing lamp comprises a light source, a first focusing structure and a second focusing structure, wherein the first focusing structure and the second focusing structure are arranged on a light path of the light source and connected end to end; the first and second focus structures each have: a coaxial focus barrel, a lens disposed within the coaxial focus barrel; the coaxial focusing barrel is composed of an inner focusing barrel and an outer focusing barrel which are coaxially arranged, the coaxial focusing barrel is also provided with a straight focusing slot and a thread focusing slot, the straight focusing slot is arranged on the inner focusing barrel or the outer focusing barrel, the thread focusing slot is arranged on the outer focusing barrel or the inner focusing barrel without the straight focusing slot, and the length direction of the straight focusing slot is parallel to the light path direction; be equipped with simultaneously with straight focusing groove and screw thread focusing groove complex slider on the lens, the utility model discloses two focusing structures of stack can make and possess the focus range that focus distance change rate is bigger than the single focusing structure of same length, and two focusing can provide multinomial application attributes such as facula size adjustment, facula definition adjustment simultaneously.
Description
Technical Field
The utility model relates to a lamps and lanterns field especially relates to a two segmentation focusing lamps.
Background
The application range of shot-light is very extensive, can change the focus point of shot-light after having added focusing device in the shot-light, widen application range, current shot-light generally uses single lens to change the focus of light behind the varifocal through the distance that changes this lens and light source, consequently will increase the range of zooming, can only realize through the form that increases the motion range of lens, can cause from this to cause a series of problems such as the shot-light is bulky, heavy, consequently a novel shot-light is required at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a two-segment focusing lamp for solving the problems, which comprises a light source, a first focusing structure and a second focusing structure, wherein the first focusing structure and the second focusing structure are arranged on the light path of the light source and are connected end to end;
the first and second focus structures each have: a coaxial focus barrel, a lens disposed within the coaxial focus barrel; the coaxial focusing barrel is composed of an inner focusing barrel and an outer focusing barrel which are coaxially arranged, the coaxial focusing barrel is also provided with a straight focusing slot and a thread focusing slot, the straight focusing slot is arranged on the inner focusing barrel or the outer focusing barrel, the thread focusing slot is arranged on the outer focusing barrel or the inner focusing barrel without the straight focusing slot, and the length direction of the straight focusing slot is parallel to the light path direction;
and the lens is provided with a sliding device which is matched with the straight focusing groove and the thread focusing groove simultaneously.
Preferably, still install the rubber circle between interior focusing section of thick bamboo and the outer focusing section of thick bamboo, rubber circle surface scribbles lubricating oil for all have the damping when first focusing structure and second focusing structure wrench movement.
Preferably, the first focusing structure is arranged on one side close to the light source, and the damping of the first focusing structure is greater than that of the second focusing structure.
The beneficial effects of the utility model are explained in conjunction with the detailed description of the preferred embodiments.
Drawings
Fig. 1 is an explosion diagram of the present invention.
Detailed Description
The invention will be further elucidated with reference to the accompanying drawings:
the invention will be further elucidated with reference to the accompanying drawings:
referring to fig. 1, a two-segment focusing lamp includes a light source 1, and a first focusing structure 2b and a second focusing structure 2a arranged on a light source light path and connected end to end;
the focusing structure 2 comprises a coaxial focusing barrel and a lens 21 arranged in the coaxial focusing barrel, wherein the coaxial focusing barrel consists of an inner focusing barrel 23(a, b) and an outer focusing barrel 24(a, b) which are coaxially arranged, and the coaxial focusing barrel is also provided with straight focusing slots 25(a, b) and threaded focusing slots 26(a, b);
the lens 21 is provided with a sliding device 27 which is matched with the straight focusing grooves 25(a, b) and the thread focusing grooves 26(a, b), and the external shape of the sliding device 27 is matched with the shapes of the straight focusing grooves 25(a, b) and the thread focusing grooves 26(a, b).
And three straight focusing grooves 25a are uniformly arranged on the inner side wall of an outer focusing barrel 24a of the second focusing structure 2a, three thread focusing grooves 26a are uniformly arranged on the side wall of an inner focusing barrel 23a of the second focusing structure, and the thread focusing grooves 26a penetrate through the inner side wall and the outer side wall of the inner focusing barrel along the depth direction.
The outer side wall of the outer focusing barrel 24b of the first focusing structure 2b is uniformly provided with three thread focusing grooves 26b, the side wall of the inner focusing barrel 23b of the first focusing structure is uniformly provided with three straight focusing grooves 25b, and the straight focusing grooves 25b penetrate through the inner side wall and the outer side wall of the inner focusing barrel 23b along the depth direction.
By rotating the outer barrel 24(a, b), the straight focusing slots 25(a, b) and the threaded focusing slots 26(a, b) are forced to simultaneously press the sliding means, so that the lens 21 can move in the focusing structure 2(a, b) along the optical path direction, and the use of the straight focusing slots 25(a, b) ensures that the lens 21 does not rotate during focusing, thereby affecting the focusing accuracy; the superposition of the two focusing structures (2a, b) can ensure that the single focusing structure with the same length has a focusing range with a larger focal distance change rate; furthermore, the double focusing can provide multiple application attributes such as spot size adjustment, spot definition adjustment and the like.
Furthermore, a rubber ring is further installed between the inner focusing barrel 23(a, b) and the outer focusing barrel 24(a, b), the surface of the rubber ring is coated with lubricating oil, the rubber ring is further installed between the inner focusing barrel and the outer focusing barrel to increase damping, and the virtual position generated by a mechanical structure between the inner focusing barrel and the outer focusing barrel is reduced, so that focusing precision is influenced.
As a modified form, the thread focusing grooves 26a of the second focusing structure 2a are spiral in the clockwise direction, the thread focusing grooves 2b of the focusing structure 2b close to the light source side are spiral in the counterclockwise direction, and the thread focusing grooves in opposite spiral directions are arranged, so that the focusing modes of the two focusing structures are different, and the force application operation is convenient.
As a safety measure, the first focusing mechanism 2b, in which the damping between the inner focusing barrel 23b and the outer focusing barrel 24b is larger than the damping between the inner focusing barrel 23a and the outer focusing barrel 24a of the second focusing mechanism 2a, can achieve different damping effects by using different types of lubricating oil; the function and the advantage are that when the second focusing structure 2a is connected with the inner focusing barrel 23b of the first focusing structure 2b, the force applied to the second focusing structure 2a can not influence the first focusing structure 2b, and the focusing precision is ensured.
The above-mentioned embodiments are merely preferred examples of the present invention, and do not limit the scope of the present invention, so all equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (3)
1. A two-section focusing lamp is characterized by comprising a light source, a first focusing structure and a second focusing structure, wherein the first focusing structure and the second focusing structure are arranged on a light path of the light source and are connected end to end;
the first and second focus structures each have: a coaxial focus barrel, a lens disposed within the coaxial focus barrel; the coaxial focusing barrel is composed of an inner focusing barrel and an outer focusing barrel which are coaxially arranged, the coaxial focusing barrel is also provided with a straight focusing slot and a thread focusing slot, the straight focusing slot is arranged on the inner focusing barrel or the outer focusing barrel, the thread focusing slot is arranged on the outer focusing barrel or the inner focusing barrel without the straight focusing slot, and the length direction of the straight focusing slot is parallel to the light path direction;
and the lens is provided with a sliding device which is matched with the straight focusing groove and the thread focusing groove simultaneously.
2. The two-stage focusing lamp of claim 1, wherein a rubber ring is further installed between the inner focusing barrel and the outer focusing barrel, and a surface of the rubber ring is coated with a lubricant oil, so that the first focusing structure and the second focusing structure are damped when being twisted.
3. A two stage focus lamp according to claim 2 wherein the first focus structure is located on a side adjacent the light source, the damping of the first focus structure being greater than the damping of the second focus structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020903693.6U CN212456424U (en) | 2020-05-26 | 2020-05-26 | Two segmentation focusing lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020903693.6U CN212456424U (en) | 2020-05-26 | 2020-05-26 | Two segmentation focusing lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212456424U true CN212456424U (en) | 2021-02-02 |
Family
ID=74500354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020903693.6U Active CN212456424U (en) | 2020-05-26 | 2020-05-26 | Two segmentation focusing lamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212456424U (en) |
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2020
- 2020-05-26 CN CN202020903693.6U patent/CN212456424U/en active Active
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