CN216526696U

CN216526696U - Structure is adjusted to picture definition for short burnt camera lens

Info

Publication number: CN216526696U
Application number: CN202120581610.0U
Authority: CN
Inventors: 郭跃武; 孙波; 徐航宇; 侯健
Original assignee: Yipu Photoelectric Tianjin Co ltd
Current assignee: Yipu Photoelectric Tianjin Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2022-05-13
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to the technical field of short-focus lens equipment, and discloses a picture definition adjusting structure for a short-focus lens, which comprises a lens outer cover body, an adjusting movable ring and a linkage pin shaft, wherein the adjusting movable ring is rotatably sleeved on the lens outer cover body, a guide chute is formed in the lens outer cover body, a linkage through groove is formed in the adjusting movable ring, and the linkage pin shaft is simultaneously penetrated in the guide chute and the linkage through groove so as to move along a first adjusting direction when the adjusting movable ring and the lens outer cover body rotate relatively. According to the device, the guide chute is formed in the lens outer cover body, the linkage through groove is formed in the adjusting movable ring, and the linkage pin shaft is driven to move in the first adjusting direction when the lens outer cover body and the adjusting movable ring rotate mutually, so that the lens in the lens group is driven to move, and the definition degree of a projection picture is changed. The adjusting structure is simple and convenient and is convenient to process and manufacture.

Description

Structure is adjusted to picture definition for short burnt camera lens

Technical Field

The utility model relates to the technical field of short-focus lens equipment, in particular to a picture definition adjusting structure for a short-focus lens.

Background

The short-focus lens projector can project a picture with a large view field in a short projection distance, greatly shortens the projection distance compared with a common projector, improves the space utilization rate, and can effectively avoid the shielding of shadows or other objects. Therefore, in recent years, short-focus projectors have attracted more and more attention in the projection market.

In order to obtain a clear image projection effect, the existing short-focus lens needs to move the lenses in the lens group back and forth along the axis direction (i.e. the first adjustment direction) of the lens group arrangement to change the imaging position of the projected image and further ensure that the clear image is obtained on the imaging image, and the existing adjustment mechanism has a complex structure and is inconvenient to install and produce.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a picture definition adjusting structure for a short-focus lens, the device can electrically adjust the definition of a picture, and the adjusting mechanism is simple and convenient to install and produce.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model provides a structure is adjusted to picture definition for short burnt camera lens, includes the camera lens dustcoat body, adjusts rotating ring and linkage round pin axle, it locates on the camera lens dustcoat body to adjust the rotating ring rotating sleeve, the direction chute has been seted up on the camera lens dustcoat body, the logical groove of linkage has been seted up on the regulation rotating ring, the linkage round pin axle wears to locate the direction chute simultaneously and links logical inslot, so that the linkage round pin axle is in can remove along first regulation direction when adjusting rotating ring and camera lens dustcoat body and taking place relative rotation.

In the utility model, further, a driving mechanism is arranged between the lens outer cover body and the adjusting movable ring, and the driving mechanism is used for driving the adjusting movable ring and the lens outer cover body to rotate relatively.

In the utility model, further, the driving mechanism comprises an arc-shaped adjusting tooth block, a connecting support and a motor module, the arc-shaped adjusting tooth block is fixedly connected to the adjusting movable ring, the motor module is fixedly arranged on the lens outer cover body through the connecting support, and the motor module drives the arc-shaped adjusting tooth block to rotate around the axis of the motor module.

In the utility model, a stop lever is fixedly arranged on the adjusting movable ring, two groups of sensors are arranged on the connecting bracket, and the two groups of sensors are used for detecting the position of the stop lever.

In the utility model, further, the adjusting movable ring comprises an upper adjusting ring and a lower adjusting ring, and the upper adjusting ring is detachably arranged on the lower adjusting ring.

In the utility model, further, the connecting bracket is arranged in a bilaterally symmetrical structure, and comprises a connecting main body and two groups of mounting platforms, wherein the two groups of mounting platforms are symmetrically fixed on two sides of the connecting main body.

In the utility model, further, a guide ring groove is formed in the circumferential direction of the lens outer cover body, a sliding block is fixedly arranged on the adjusting movable ring, and the sliding block is slidably arranged in the guide ring groove.

In the utility model, further, the lens outer cover body is of a cylindrical structure, and a plurality of groups of the guide chutes are uniformly distributed along the circumferential direction of the lens outer cover body.

In the utility model, further, the length direction of the linkage through groove is consistent with the axial direction of the adjusting movable ring.

In the utility model, a screwing through groove is formed in one end part of the linkage pin shaft, and threads are arranged on the circumferential wall of the outer side of one end, far away from the screwing through groove.

Compared with the prior art, the utility model has the beneficial effects that:

the device is provided with a lens outer cover body, an adjusting movable ring and a linkage pin shaft, and is matched with a guide chute arranged on the lens outer cover body and a linkage through groove arranged on the adjusting movable ring, when the lens outer cover body and the adjusting movable ring rotate mutually, the linkage pin shaft is driven to move in a first adjusting direction, so that a lens in a lens group is driven to move, and the definition degree of a projection picture is changed. The adjusting structure is simple and convenient and is convenient to process and manufacture.

In addition, two groups of sensors for detecting the positions of the gear rods are symmetrically arranged on the connecting support, so that the maximum rotating stroke and the limit position of the adjusting movable ring are limited and used for protecting the motor module, and meanwhile, the two groups of sensors can also be used as position reference zero points for driving the motor module, so that an external control system can conveniently compile and send instructions.

Drawings

Fig. 1 is a schematic view of the general structure of the present invention.

Fig. 2 is an exploded structural schematic diagram of the lens outer cover body, the adjusting movable ring and the linkage pin shaft in the utility model.

Fig. 3 is a schematic view of the overall structure of the drive mechanism of the present invention.

In the drawings: 1. a lens outer cover body; 10. a guide chute; 11. a guide ring groove; 20. an upper adjusting ring; 201. a linkage through groove; 21. a lower adjustment ring; 210. a gear lever; 211. an arc-shaped adjusting tooth block; 212. a slider; 3. a linkage pin shaft; 40. a connecting body; 41. arranging a platform; 42. a motor module; 43. a drive gear; 44. a sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a preferred embodiment of the present invention provides a frame sharpness adjusting structure for a short-focus lens, including a lens housing 1, an adjusting rotating ring and a linking pin 3, wherein the adjusting rotating ring is rotatably sleeved on the lens housing 1, the lens housing 1 is provided with a guiding chute 10, the adjusting rotating ring is provided with a linking through groove 201, and the linking pin 3 is simultaneously inserted into the guiding chute 10 and the linking through groove 201, so that the linking pin 3 can move along a first adjusting direction when the adjusting rotating ring and the lens housing 1 rotate relatively. The lens outer cover body 1 is provided with a guide ring groove 11 in the circumferential direction, a sliding block 212 is fixedly arranged on the adjusting movable ring, and the sliding block 212 is arranged in the guide ring groove 11 in a sliding manner. The guide ring groove 11 is used to ensure that the adjusting moving ring does not axially move when rotating on the lens outer cover body 1, thereby ensuring the normal movement of the linkage pin shaft 3 in the guide chute 10 and the linkage through groove 201.

As shown in fig. 2, the lens housing body 1 is a cylindrical structure, and a plurality of groups of the guide chutes 10 are uniformly distributed along the circumferential direction of the lens housing body 1. In practice, 3 sets of guide chutes 10 are usually provided to achieve better use effect. The length direction of the linkage through groove 201 is consistent with the axial direction of the adjusting movable ring. Therefore, when the adjusting movable ring is sleeved with the lens outer cover body 1, the linkage pin shaft 3 can be just arranged at the joint of the guide chute 10 and the linkage through groove 201, then rotates around the axis along with the linkage through groove 201, and then the linkage pin shaft 3 can also rotate around the axis under the driving of the linkage through groove, but when the linkage pin shaft 3 does the circumferential motion, the linkage pin shaft can move in the axis direction due to the influence of the guide chute 10, so that the purpose of moving the lens is achieved, in order to adapt to the movement of the linkage pin shaft 3 in the axial direction, the linkage through groove 201 is arranged to be a long-strip-shaped U-shaped hole, so that the linkage pin shaft 3 can normally move in the linkage through groove.

As shown in fig. 3, a driving mechanism is disposed between the lens housing body 1 and the adjusting rotating ring, and the driving mechanism is configured to drive the adjusting rotating ring and the lens housing body 1 to rotate relatively. Actuating mechanism includes arc regulation tooth piece 211, linking bridge and motor module 42, arc regulation tooth piece 211 fixed connection is on adjusting the lower regulating ring 21 of rotating ring and the symmetry plane coincidence of arc regulation tooth piece 211 and lower regulating ring 21, motor module 42 passes through linking bridge fixed the setting on the lens dustcoat body 1, motor module 42 drives arc regulation tooth piece 211 and rotates around its axis. The motor module 42 comprises a driving motor and a controller, the controller is used for receiving and sending control signals to complete the control of the specific movement action of the motor, a driving gear 43 is fixedly mounted at the end part of an output shaft of the motor, and the driving gear 43 can drive the arc-shaped driving gear block to rotate through the driving gear 43, so that the driving of the adjusting movable ring is realized.

As shown in fig. 3, a shift lever 210 is fixedly disposed on the adjusting movable ring, two sets of sensors 44 are disposed on the connecting bracket, and both sets of sensors 44 are used for detecting the position of the shift lever 210. The connecting support is of a bilateral symmetry structure, the symmetry plane of the connecting support is also coincident with the symmetry plane of the lower adjusting ring 21, the connecting support comprises a connecting main body 40 and two groups of mounting platforms 41, and the two groups of mounting platforms 41 are symmetrically fixed on two sides of the connecting main body 40. The two sets of mounting platforms 41 are used for fixing the sensors 44, and the two sets of sensors 44 symmetrically arranged can be used as calibration limitation for adjusting the maximum stroke of the moving ring on one hand and can also be used as reference zero points when the shift lever 210 moves. When the product is debugged after being assembled, the motor can be used for driving the adjusting movable ring to move to obtain the clearest picture on the initial projection picture when leaving a factory, the position is memorized by the system, and the motor can be controlled by the external controller (remote control) to adjust the definition of the picture when a later-stage customer changes the projection picture.

The adjusting movable ring comprises an upper adjusting ring 20 and a lower adjusting ring 21, and the upper adjusting ring 20 is detachably arranged on the lower adjusting ring 21. The adjusting movable ring can be conveniently installed on the lens outer cover body 1 through the arrangement, and the disassembly and the assembly are convenient.

Because the linkage pin shaft 3 is fixed with the head to drive the lens to move, the linkage pin shaft 3 is usually fixedly connected with the mounting ring of the lens, so that the lens housing 1 is conveniently mounted and connected from the outside, a screwing through groove is formed in one end part of the linkage pin shaft 3, and a thread is arranged on the circumferential wall of the outer side far away from one end of the screwing through groove. The outer circumferential wall of the mounting ring of the lens is also provided with a threaded hole matched with the mounting ring, so that the connection can be completed only from the outside when the mounting ring is connected and mounted, and the convenience of product mounting is improved, and the later maintenance can be facilitated.

The working principle is as follows:

when using, with all parts ann shine above-mentioned connected mode and install the combination, then open projection equipment, whether watch the image on the projection picture and be in the clear state, if not clear come the control motor rotation to go on and drive and adjust the rotating ring and carry out relative rotation for lens dustcoat body 1 through external controller then direction chute 10 takes place relative rotation with linkage logical groove 201 and then drive linkage round pin axle 3 and move and then drive lens and move in the axial direction, can adjust the position of formation of image according to the position of lens from this, finally wait to throw and can stop adjusting after the image on the picture is clear, the projection effect of best definition has been obtained.

The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a structure is adjusted to picture definition for short burnt camera lens, a serial communication port, including the camera lens dustcoat body (1), adjust rotating ring and linkage round pin axle (3), it locates on the camera lens dustcoat body (1) to adjust the rotating ring rotating sleeve, direction chute (10) have been seted up on the camera lens dustcoat body (1), it leads to groove (201) to have seted up the linkage on the regulation rotating ring, the linkage round pin axle (3) is worn to locate simultaneously in direction chute (10) and the logical groove (201) of linkage, so that linkage round pin axle (3) are in can follow first regulation direction and remove when adjusting rotating ring and camera lens dustcoat body (1) and taking place the relative rotation.

2. The image sharpness adjusting structure for the short-focus lens according to claim 1, wherein a driving mechanism is disposed between the lens housing (1) and the adjusting rotating ring, and the driving mechanism is configured to drive the adjusting rotating ring and the lens housing (1) to rotate relatively.

3. The image sharpness adjusting structure for the short-focus lens according to claim 2, wherein the driving mechanism includes an arc-shaped adjusting tooth block (211), a connecting bracket and a motor module (42), the arc-shaped adjusting tooth block (211) is fixedly connected to the adjusting moving ring, the motor module (42) is fixedly arranged on the lens housing (1) through the connecting bracket, and the motor module (42) drives the arc-shaped adjusting tooth block (211) to rotate around the axis thereof.

4. The image sharpness adjusting structure for the short-focus lens according to claim 3, wherein a stop lever (210) is fixedly disposed on the adjusting rotating ring, two sets of sensors (44) are disposed on the connecting bracket, and both sets of sensors (44) are used for detecting the position of the stop lever (210).

5. The image sharpness adjusting structure for a short-focus lens according to claim 4, wherein the adjusting ring comprises an upper adjusting ring (20) and a lower adjusting ring (21), the upper adjusting ring (20) being detachably disposed on the lower adjusting ring (21).

6. The image sharpness adjusting structure for the short-focus lens according to claim 3, wherein the connecting bracket is configured as a bilateral symmetry structure, the connecting bracket comprises a connecting main body (40) and two sets of mounting platforms (41), and the two sets of mounting platforms (41) are symmetrically fixed on two sides of the connecting main body (40).

7. The image sharpness adjusting structure for short-focus lens according to claim 1, wherein a guiding ring groove (11) is formed along a circumferential direction of the lens housing (1), a sliding block (212) is fixedly disposed on the adjusting ring, and the sliding block (212) is slidably disposed in the guiding ring groove (11).

8. The image sharpness adjusting structure for the short-focus lens according to claim 1, wherein the lens housing (1) is a cylindrical structure, and a plurality of sets of the guiding chutes (10) are uniformly arranged along a circumferential direction of the lens housing (1).

9. The image sharpness adjusting structure for the short-focus lens according to claim 8, wherein a length direction of the linkage through groove (201) is consistent with an axial direction of the adjusting movable ring.

10. The image sharpness adjusting structure for the short-focus lens according to claim 1, wherein a screw through groove is formed at one end of the linkage pin shaft (3), and a thread is formed on an outer circumferential wall of one end far away from the screw through groove.