CN211603675U - Focusing device is used in projecting apparatus production - Google Patents

Abstract

The utility model discloses a focusing device is used in projecting apparatus production, including being used for focusing first adjustment mechanism, the second adjustment mechanism that removes, second adjustment mechanism sets up on the first adjustment mechanism, still including focusing mechanism and the polarisation mechanism that is used for focusing, focusing mechanism is including fixed to the frame, remove to the frame, focus the lens, fixed to the frame connection first adjustment mechanism. The utility model discloses utilize black and inside coarse focusing mechanism to come to fix the camera lens respectively with focusing the lens to prevent that other light from entering into the condition that influences imaging efficiency between the two, utilize polarizing lens to install in the top to focusing the lens, thereby change and enter into the light of focusing in the lens, and then can reduce the influence of other light to the camera lens.

Description

Focusing device is used in projecting apparatus production

Technical Field

The utility model relates to a projecting apparatus production field especially relates to a focusing device is used in projecting apparatus production.

Background

Machine vision inspection uses a camera to convert a target object into an image signal, so that a dedicated image processing system performs various operations on the captured image signal to extract the features of the target object. Before the machine vision detection, the focal length of a lens between a detected product and a camera lens module needs to be adjusted, so that the camera lens module can obtain a clearer visual field; there are many direct light sources in the workshop of projector production, and the traditional focusing device often these lights can enter the camera lens when focusing to cause the situation that the camera lens after the formation of image is unclear or the exposure is too big.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is just to provide a focusing device is used in production of projecting apparatus in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a focusing device for projector production comprises a first adjusting mechanism and a second adjusting mechanism which are used for focusing and moving, wherein the second adjusting mechanism is arranged on the first adjusting mechanism, and the focusing device also comprises a focusing mechanism and a polarizing mechanism which are used for focusing, the focusing mechanism comprises a fixed focusing frame, a movable focusing frame and a focusing lens, the fixed focusing frame is connected with the first adjusting mechanism, the lower end of the movable focusing frame is sleeved on the upper side of the fixed focusing frame, the other side of the movable focusing frame is connected onto the fixed focusing frame through a sliding rail, the focusing lens is connected to the central position of the top of the movable focusing frame through a clamping groove, the inner walls of the fixed focusing frame and the movable focusing frame are uneven and are black as a whole; the polarizing mechanism comprises a polarizing frame and polarizing lenses, the polarizing frame is connected to the position, outside the top of the polarizing frame, of the movable focusing frame through clamping grooves, and the polarizing lenses are connected to the inner side of the polarizing frame through clamping grooves and located above the focusing lenses.

Preferably: the second adjustment mechanism comprises a second motor, a second lead screw and a second moving seat, the second motor is connected with the bottom of the alignment frame through bolts, the upper end and the lower end of the second lead screw are connected with the alignment frame through bearings, the alignment frame is fixed, and the second moving seat is connected with the middle of the other side face of the alignment frame through screws.

So set up, utilize second motor rotation portion drives the second lead screw rotates, through the rotation of second lead screw drives the second removes the seat and carries out reciprocating motion to make through the second removes the seat remove the frame and carry out reciprocating motion and realize the processing of focusing of shorter distance.

Preferably: the second adjustment mechanism comprises a second motor, a fine adjustment gear and a fine adjustment rack, the second motor is connected with the rear side of the fixed alignment frame through a bolt, the fine adjustment gear is connected with the rotating part of the second motor through a key, and the fine adjustment rack is installed at the middle position of the moving alignment frame on the other side face.

So set up, utilize second motor rotation portion drives the fine setting gear rotates, through the positive and negative rotation of fine setting gear drives the fine setting rack carries out reciprocating motion, thereby through the fine setting rack drives the removal is carried out reciprocating motion to the frame and is realized the processing of focusing of short distance.

Preferably: first adjustment mechanism includes mount, first motor, first removal seat, first lead screw, first motor passes through bolted connection in the mount bottom, both ends are all connected through the bearing about the first lead screw on the mount, first removal seat cover is in on a mount side, the first removal seat other end passes through threaded connection in the first lead screw outside.

According to the arrangement, the first motor rotating part is used for driving the first lead screw to rotate, and the first moving seat is driven to reciprocate through the rotation of the first lead screw, so that the second adjusting mechanism is driven to reciprocate to realize long-distance focusing.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the lens and the focusing lens are respectively fixed by using a black focusing mechanism with rough inner part, so that the condition that other light rays enter between the lens and the focusing lens to influence the imaging efficiency is prevented;

2. the polarized lens is arranged above the focusing lens, so that the light rays entering the focusing lens are changed, and the influence of other light rays on the lens can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a focusing device for projector production according to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a focusing device for projector production according to embodiment 2 of the present invention;

FIG. 3 is a partial view of a second adjusting mechanism 1 of a focusing device for projector production according to an embodiment of the present invention;

FIG. 4 is a partial view of a second adjusting mechanism of a focusing device for projector production according to an embodiment 2 of the present invention;

FIG. 5 is a partial view of a focusing lens of a focusing device for use in projector production according to the present invention;

FIG. 6 is a partial view of a fixed focusing frame of a focusing device for projector production according to the present invention;

fig. 7 is a partial cross-sectional view of the inner wall of the focusing mechanism of the focusing device for projector production.

The reference numerals are explained below:

1. a first adjustment mechanism; 2. a second adjustment mechanism; 3. a focusing mechanism; 4. a polarization mechanism; 11. a fixed mount; 12. a first motor; 13. a first movable base; 14. a first lead screw; 21. a second motor; 22. a second lead screw; 23. a second movable base; 212. fine-tuning the gear; 213. finely adjusting the rack; 31. fixing the alignment frame; 32. moving the alignment rack; 33. a focusing lens; 41. a polarizing frame; 42. a polarized lens.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

a focusing device for projector production comprises a first adjusting mechanism 1 and a second adjusting mechanism 2 which are used for focusing movement, wherein the second adjusting mechanism 2 is arranged on the first adjusting mechanism 1, and further comprises a focusing mechanism 3 and a polarization mechanism 4 which are used for focusing, the focusing mechanism 3 comprises a fixed focusing frame 31, a movable focusing frame 32 and a focusing lens 33, the fixed focusing frame 31 is connected to the side surface of a first movable seat 13 through a bolt, the lower end of the movable focusing frame 32 is sleeved on the upper side of the fixed focusing frame 31, the other side surface of the movable focusing frame 32 is connected to the fixed focusing frame 31 through a slide rail, the focusing lens 33 is connected to the center position of the top of the movable focusing frame 32 through a clamping groove, the inner walls of the fixed focusing frame 31 and the movable focusing frame 32 are uneven and are black as a whole; the polarization mechanism 4 includes a polarization frame 41 and a polarization lens 42, the polarization frame 41 is connected to the position outside the top of the movable focusing frame 32 through a card slot, and the polarization lens 42 is connected to the inner side of the polarization frame 41 through a card slot and is located above the focusing lens 33.

Example 1

As shown in fig. 1, 3, 5, 6, and 7, the second adjusting mechanism 2 includes a second motor 21, a second lead screw 22, and a second moving base 23, the second motor 21 is connected to the bottom of the fixed alignment rack 31 through a bolt, the upper and lower ends of the second lead screw 22 are connected to the fixed alignment rack 31 through a bearing, the second moving base 23 is connected to the middle position of the other side surface of the moving alignment rack 32 through a screw, the second lead screw 22 is driven to rotate by the rotating part of the second motor 21, the second moving base 23 is driven to reciprocate through the rotation of the second lead screw 22, and thus the moving alignment rack 32 is driven to reciprocate through the second moving base 23 to realize the focusing processing of a short distance; first adjustment mechanism 1 includes mount 11, first motor 12, first removal seat 13, first lead screw 14, first motor 12 passes through bolted connection in mount 11 bottom, both ends all are connected on mount 11 through the bearing about first lead screw 14, first removal seat 13 cover is on a mount 11 side, the first removal seat 13 other end passes through threaded connection in the first lead screw 14 outside, utilize first motor 12 rotation portion to drive first lead screw 14 and rotate, the rotation through first lead screw 14 drives first removal seat 13 and carries out reciprocating motion, thereby drive second adjustment mechanism 2 and carry out reciprocating motion and realize the processing of focusing of longer distance.

The working principle is as follows: when the device is used, a camera needing focusing is installed in a circular hole at the bottom of the fixed focusing frame 31, the device is installed at a needed position, the first motor 12 and the second motor 21 are connected to corresponding controllers, at the time, when a projector is produced, the first screw 14 is driven to rotate by the rotating part of the first motor 12, the first movable seat 13 is driven to move by the rotation of the first screw 14, so that the fixed focusing frame 31 is driven to move for longer-distance focusing treatment, the second screw 22 is driven to rotate by the rotating part of the second motor 21 so as to drive the second movable seat 23 to move, and the moving frame 32 is driven to move by the movement of the second movable seat 23, so that the distance between the focusing lens 33 and a lens is driven, so that the shorter-distance focusing treatment is realized; in the focusing process, the direct light in the light beam is eliminated and filtered by the polarized lens 42, so that the light can be projected into the visual image in the lens at the light transmission axis of the front rail, and the visual field is clear; meanwhile, the light rays of diffuse reflection can be blocked by fixing the light focusing frame 31 and moving the uneven plane on the inner side of the light focusing frame 32, and the imaging effect of the whole lens can be further improved.

Example 2

As shown in fig. 2 and 4, the difference between the embodiment 2 and the embodiment 1 is that the second adjusting mechanism 2 includes a second motor 21, a fine adjustment gear 212, and a fine adjustment rack 213, the second motor 21 is connected to the rear side of the fixed alignment rack 31 by a bolt, the fine adjustment gear 212 is connected to the rotating part of the second motor 21 by a key, the fine adjustment rack 213 is installed at the middle position of the other side of the moving alignment rack 32, the rotating part of the second motor 21 is used to drive the fine adjustment gear 212 to rotate, the fine adjustment rack 213 is driven to reciprocate by the forward and backward rotation of the fine adjustment gear 212, and thus the fine adjustment rack 213 is driven to move to reciprocate the alignment rack 32 to realize the focusing process of a short distance.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (4)

1. A focusing device for projector production comprises a first adjusting mechanism (1) and a second adjusting mechanism (2) which are used for focusing movement, wherein the second adjusting mechanism (2) is arranged on the first adjusting mechanism (1), and the focusing device is characterized in that: the focusing mechanism (3) comprises a fixed focusing frame (31), a movable focusing frame (32) and a focusing lens (33), the fixed focusing frame (31) is connected with the first adjusting mechanism (1), the lower end of the movable focusing frame (32) is sleeved on the upper side of the fixed focusing frame (31), the other side of the movable focusing frame (32) is connected onto the fixed focusing frame (31) through a sliding rail, the focusing lens (33) is connected onto the center of the top of the movable focusing frame (32) through a clamping groove, the inner walls of the fixed focusing frame (31) and the movable focusing frame (32) are uneven and are black on the whole; polarization mechanism (4) are including polarisation frame (41), polarized lens (42), polarisation frame (41) are connected through the draw-in groove the removal is to frame (32) top outside position, polarized lens (42) are connected through the draw-in groove polarisation frame (41) inboard and be located focus lens (33) top.

2. The focusing device for projector production according to claim 1, wherein: second adjustment mechanism (2) include second motor (21), second lead screw (22), second removal seat (23), second motor (21) pass through bolted connection and are in fixed to light frame (31) bottom, both ends all are connected through the bearing about second lead screw (22) fixed to light frame (31) on, second removal seat (23) pass through screwed connection and are in remove the intermediate position to light frame (32) another side.

3. The focusing device for projector production according to claim 1, wherein: second adjustment mechanism (2) include second motor (21), fine setting gear (212), fine setting rack (213), second motor (21) pass through bolted connection and are in fixed to light frame (31) rear side position, fine setting gear (212) are in through the key-type connection second motor (21) rotation portion, fine setting rack (213) are installed the removal is to the intermediate position of light frame (32) another side.

4. The focusing device for projector production according to claim 1, wherein: first adjustment mechanism (1) is including mount (11), first motor (12), first removal seat (13), first lead screw (14), first motor (12) pass through bolted connection mount (11) bottom, both ends all are connected through the bearing about first lead screw (14) on mount (11), first removal seat (13) cover is in on mount (11) a side, first removal seat (13) other end passes through threaded connection and is in first lead screw (14) outside.

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