CN206920794U - A kind of portable photoelectricity automatic focusing device - Google Patents

Abstract

The utility model discloses a portable photoelectric automatic focusing device, which comprises a fixer and a lens. The fixer includes a bracket, a dust-proof cover, a base, an elastic card and a clip, and the top of the right surface of the bracket is hinged with a dust-proof cover. An elastic card is fixedly installed in the middle of the right surface of the bracket, a base is fixedly installed on the upper surface of the bottom end of the bracket, the lens includes a lens base of a fixed-focus lens, and the fixed-focus lens is inserted and installed on the lens base The upper surface of the fixed-focus lens in the inner cavity of the seat is provided with an infrared distance measuring module. This model can fix the lens through a holder with a clip, making the lens easy to carry. The holder is provided with a dust cover so that the lens can During the carrying process, the lens is not easy to be dirty and the clarity is guaranteed; through the cooperation of the focusing lens, stepping motor, cam and lens base, the lens can automatically focus and reduce the difficulty of operation.

Description

A Portable Photoelectric Automatic Focusing Device

technical field

The utility model relates to the technical field of photography equipment, in particular to a portable photoelectric automatic focusing device.

Background technique

A camera lens is usually a lens group composed of one or more pieces of optical glass, generally consisting of a concave lens, a convex lens, or a combination thereof; modern camera lenses also use aspheric lenses, and aspheric lenses also have optical glass ground aspheric lenses, composite aspheric surfaces, Plastic pressed aspheric mirror; in the case of basically the same imaging quality, its manufacturing cost and service life are quite different; the camera lens is the most important part of the camera, because its quality directly affects the quality of the captured image ; At the same time, the lens is also the most important criterion for classifying camera types and grades; but usually in the process of using the camera, manual adjustment is more troublesome, and many people are not very clear about focusing; and shooting is usually based on the shooting The scene needs to change the lens, and the photographer needs to carry a variety of lenses, and the existing lens is extremely inconvenient to carry. For this reason, we have proposed a portable photoelectric automatic focusing device.

Utility model content

The purpose of this utility model is to provide a portable photoelectric automatic focusing device to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions: a portable photoelectric automatic focusing device, including a fixer and a lens, the fixer includes a bracket, a dust cover, a base, an elastic card and a clip, and the bracket is L-shaped, the top of the right surface of the bracket is hinged with a dust cover, the middle of the right surface of the bracket is fixedly installed with an elastic card, the upper surface of the bottom end of the bracket is fixedly installed with a base, and the lens can be clamped on Inside the elastic card;

The lens includes a lens base of a fixed-focus lens, the fixed-focus lens is inserted into the inner cavity of the lens base, the upper surface of the fixed-focus lens is provided with an infrared distance measuring module, and the inner cavity of the lens base A cam is installed, and the left side wall of the inner cavity of the lens base is provided with a mounting groove, and a stepping motor is fixedly installed in the mounting groove, and a gear is arranged on the top of the rotor of the stepping motor, and the outer wall of the cam A guide ring is provided, and the guide ring and the gear mesh with each other, the inner cavity side wall of the lens base is provided with a groove corresponding to the guide ring, the outer wall of the lens base is provided with a pin, and the cam The inner wall is provided with a curved guide rail corresponding to the latch, and the latch is inserted and installed in the curved guide rail.

Preferably, the clip includes a splint and a bottom plate, and the bottom plate is fixedly installed on the left surface of the base. The right surface of the splint is provided with a first ear plate, and the side wall of the first ear plate is provided with a round hole. The bottom plate A second ear plate is provided on the left surface of the second ear plate, and a round hole is opened on the side wall of the second ear plate, and the first ear plate and the corresponding round hole of the second ear plate are installed together, and a The pin shaft is covered with a torsion spring on the surface of the pin shaft.

Preferably, the upper surface of the base is provided with a circular slot corresponding to the lower surface of the lens.

Compared with the prior art, the beneficial effect of the utility model is that the lens can be fixed by the fixer with clips, making the lens easy to carry, and the fixer is provided with a dust cover, so that the lens can be easily carried during the carrying process. The lens is not easy to be dirty, and the clarity is guaranteed; through the cooperation of the lens base, stepping motor, cam and lens base, the lens can automatically focus and reduce the difficulty of operation.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a sectional view of the lens of the present invention;

Fig. 3 is the connection schematic diagram of motor, cam and lens base of the present utility model;

Fig. 4 is a structural schematic diagram of the clip of the present invention.

1. Fixer, 11. Bracket, 12. Dustproof cover, 13. Base, 14. Elastic card, 15. Clip, 151. Plywood, 152. Bottom plate, 153. First ear plate, 154, Second ear plate, 155, torsion spring, 156, pin shaft, 157, round hole, 2, lens, 21, fixed-focus lens, 211, cam, 2111, curved guide rail, 2112, guide ring, 212, stepper motor, 2121, gear, 213, installation groove, 214, groove, 22, lens base, 221, infrared distance measuring module, 222, latch.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: a portable photoelectric automatic focusing device, including a holder 1 and a lens 2, and the holder 1 includes a bracket 11, a dust cover 12, a base 13, Elastic card 14 and clip 15, described support 11 is L-shaped, and the top of the right surface of described support 11 is hinged with dustproof cover 12, and described dustproof cover 12 can rotate up and down, covers the upper surface of lens 2, prevents lens 2, the lens dust is not clear, the middle of the right surface of the bracket 11 is fixedly installed with an elastic card 14, the upper surface of the bottom end of the bracket 11 is fixedly installed with a base 13, and the bottom of the lens 2 is placed on the base 13. The lens 2 can be clamped in the elastic card 14 to fix the lens 2;

Described lens 2 comprises the lens base 22 of fixed-focus lens 21, and described fixed-focus lens 21 is inserted and installed in the inner chamber of lens base 22, and the upper surface of described fixed-focus lens 21 is provided with infrared distance measuring module 221, measures Scenery distance, signal is sent to processor, and the inner chamber of described lens base 22 is equipped with cam 211, and the inner cavity left side wall of described lens base 22 is provided with installation groove 213, and is fixedly installed in described installation groove 213 There is a stepper motor 212, and the processor controls the stepper motor 212 to work through the driver according to the signal. The rotor top of the stepper motor 212 is provided with a gear 2121, and the outer wall of the cam 211 is provided with a guide ring 2112, and the guide ring 2112 Mesh with the gear 2121, the stepper motor 212 rotates through the gear 2121 and the guide ring 2112 to drive the cam 211 to rotate, the inner cavity side wall of the lens base 22 is provided with a groove 214 corresponding to the guide ring 2112, the guide ring 2112 Installed in the groove 214, the outer wall of the lens base 22 is provided with a latch 222, the inner wall of the cam 211 is provided with a curved guide rail 2111 corresponding to the latch 222, and the latch 222 is inserted and installed on the curved guide rail 2111 Inside, the rotation of the cam 211 moves the fixed-focus lens 21 forward and backward through the latch 222 and the curved guide rail 2111 .

Specifically, the clip 15 includes a clamping plate 151 and a bottom plate 152, the bottom plate 152 is fixedly installed on the left surface of the base 13, the right surface of the clamping plate 151 is provided with a first ear plate 153, and the first clamping plate 153 is two , the side wall of the first ear plate 153 is provided with a round hole 157, the left surface of the bottom plate 152 is provided with a second ear plate 154, and the second ear plate 154 is provided with two pairs, and a first ear plate 153 is inserted and installed Between the two second lugs 154, the side walls of the second lugs 154 are provided with circular holes 157, and the first lugs 153 and the corresponding circular holes 157 of the second lugs 154 are installed together. A pin shaft 156 is inserted into the round hole 157 to make the splint 151 and the bottom plate 152 rotate and installed together. The surface of the pin shaft 156 is covered with a torsion spring 155 .

Specifically, the upper surface of the base 13 is provided with a circular slot corresponding to the lower surface of the lens 2 to facilitate fixing the lens 2 .

Working principle: When using the new model, the lens 2 can be fixed on the holder 1 through the elastic card 14, the bottom surface of the lens 2 is placed in the circular groove of the base 13, and the dust cover 12 is covered, and the lens can be fixed through the clip 15 It is clipped in the user's belt and other places that are easy to carry and use; when the lens 2 needs to be used, open the dust cover 12 to take out the lens 2, install the lens 2 on the corresponding device, and the infrared distance measuring module 221 measures the distance of the scene, through the processor For calculation and processing, the processor controls the rotation of the stepping motor 212 through the driver, and the rotation of the stepping motor 212 drives the fixed-focus lens 21 to move back and forth through the cam 211 to realize automatic focusing.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (3)

1. a kind of portable photoelectricity automatic focusing device, including fixator (1) and camera lens (2), it is characterised in that：The fixator (1) support (11), dust cap (12), base (13), elastic card (14) and clip (15) are included, the support (11) is L-type, The right surface top of the support (11) is hinged with dust cap (12), and the right surface middle of the support (11) is installed with Elastic card (14), the bottom upper surface of the support (11) are installed with base (13), and the camera lens (2) can be connected to In elastic card (14)；

The camera lens (2) includes the lens base (22) of tight shot (21), and tight shot (21) insertion is arranged on camera lens The inner chamber of pedestal (22), the upper surface of the tight shot (21) are provided with infrared distance measurement module (221), the lens base (22) inner chamber is provided with cam (211), and the inner chamber left side wall of the lens base (22) offers mounting groove (213), described Stepper motor (212) is installed with mounting groove (213), the apex rotor of the stepper motor (212) is provided with gear (2121), the lateral wall of the cam (211) is provided with lead ring (2112), and lead ring (2112) and gear (2121) mutual tooth Close, the intracavity sidewall of the lens base (22) is provided with groove (214) corresponding with lead ring (2112), the lens base (22) lateral wall is provided with latch (222), and the madial wall of the cam (211) is provided with corresponding curved with latch (222) Guide rail (2111), and latch (222) insertion is arranged in curved guide rail (2111).

A kind of 2. portable photoelectricity automatic focusing device according to claim 1, it is characterised in that：Clip (15) bag Clamping plate (151) and bottom plate (152) are included, the bottom plate (152) is fixedly mounted on the left surface of base (13), the clamping plate (151) Right surface be provided with the first otic placode (153), the side wall of first otic placode (153) offers circular hole (157), the bottom plate (152) left surface is provided with the second otic placode (154), and the side wall of second otic placode (154) offers circular hole (157), and One otic placode (153) circular hole (157) corresponding with the second otic placode (154) is installed together, and inserts and is provided with the circular hole (157) Bearing pin (156), the surface of the bearing pin (156) are set with torsion spring (155).

A kind of 3. portable photoelectricity automatic focusing device according to claim 1, it is characterised in that：The base (13) Upper surface be provided with circular neck corresponding with camera lens (2) lower surface.