Variable aperture with gears of adjacent apertures capable of being adjusted at equal angle

Abstract

The utility model relates to the technical field of camera shooting, in particular to a variable aperture with gears of adjacent apertures capable of being adjusted at equal angles, which comprises an angle-adjustable variable aperture assembly, a driving ring is arranged on the upper side of the angle-adjustable variable aperture assembly, a track groove is arranged on the inner side of the driving ring, a fixed seat is arranged on the lower side of the driving ring, and the fixed seat is fixed on the fixed seat. Positioning holes are formed in the periphery of the inner side of the fixing base respectively, and rotating pins are clamped and embedded in the inner walls of the positioning holes. According to the variable diaphragm, the gears of the adjacent diaphragms can be adjusted at equal angles, and the angle of the driving ring is rotated, so that the diaphragm blades are driven to obtain the corresponding clear apertures required by the gears; the blade rotates around the axis of the rotating pin, the sliding pin slides along the track groove in the driving ring, when the driving ring rotates, the diaphragm blades are driven by the track groove to synchronously rotate, and the inner edges of the diaphragm blades form an equilateral polygon, so that the gear of the diaphragm can be conveniently adjusted at equal angles.

Description

TECHNICAL FIELD

[0001] The utility model relates to camera technology field especially adjacent aperture gear can equal angle adjustment's variable aperture. BACKGROUND

[0002] The basic principle of aperture can be understood as using annular diaphragm to change the light quantity entering the lens, in the actual application of lens, we use FNo. to express aperture gear, the commonly used aperture F value has: F1, F1.4, F2, F2.8, F4, F5.6, F8, F11, F16, under normal circumstances, the rotation angle of driving ring between two adjacent aperture gears of same lens is different, which leads to the aperture gear scale angle size of lens product being different, and the aperture adjustment consistency of aperture gear scale is poor, therefore, it is necessary to develop a variable aperture that can satisfy the equal angle adjustment of adjacent aperture gears to solve the current difficulties.

[0003] In view of the above problems, a variable aperture with equal angle adjustment of adjacent aperture gears is needed to overcome the above problems. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a variable aperture with equal angle adjustment of adjacent aperture gears, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A variable aperture with equal angle adjustment of adjacent aperture gears, comprising an angle-adjustable variable aperture assembly, a driving ring is arranged on the upper side of the angle-adjustable variable aperture assembly, a track groove is arranged on the inner side of the driving ring, a fixing seat is arranged on the lower side of the driving ring, a positioning hole is arranged on the inner side of the fixing seat, a rotating pin is clamped on the inner wall of the positioning hole, a diaphragm blade is arranged on one side of the rotating pin, a sliding pin is arranged on the other side of the diaphragm blade, and the outer wall of the sliding pin is clamped in the inner wall of the track groove arranged on the driving ring.

[0007] As a preferred scheme of the utility model, the sliding pin and the diaphragm blade are fixedly connected.

[0008] As a preferred scheme of the utility model, the rotating pin and the diaphragm blade are fixedly connected.

[0009] As a preferred scheme of the utility model, the sliding pin and the track groove are slidingly connected.

[0010] As a preferred scheme of the utility model, the rotating pin and the positioning hole are rotationally connected.

[0011] As the preferred scheme of the utility model, the driving ring and the fixed seat are detachably installed.

[0012] As the preferred scheme of the utility model, the number of the positioning holes is same as the number of the diaphragm blades, and the number of the track grooves is same as the number of the diaphragm blades.

[0013] Beneficial effects

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] In the utility model, the adjacent aperture positions can be adjusted at equal angles by using the rotating driving ring angle to drive the diaphragm blades to obtain the corresponding light passing aperture required by each position, the blades rotate around the rotating pin axis, the sliding pin slides along the track groove on the driving ring, the diaphragm blades are synchronously rotated by the track groove when the driving ring rotates, and the inner edges of the multiple diaphragm blades form an equilateral polygon, so that the aperture positions can be adjusted at equal angles. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the structure schematic view of the angle-adjustable variable aperture assembly of the utility model;

[0017] Figure 2 is the front view structure schematic view of the angle-adjustable variable aperture assembly of the utility model;

[0018] Figure 3 is the front view structure schematic view of the fixed seat of the utility model;

[0019] Figure 4 is the front view structure schematic view of the driving ring of the utility model;

[0020] Figure 5 is the structure schematic view of the diaphragm blade of the utility model;

[0021] Figure 6 is the front view structure schematic view of the diaphragm blade of the utility model.

[0022] In the drawing: 1, angle-adjustable variable aperture assembly; 101, driving ring; 102, diaphragm blade; 103, fixed seat; 104, positioning hole; 105, track groove; 106, sliding pin; 107, rotating pin. DETAILED DESCRIPTION

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, 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 pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figures 1-6 As shown, a variable aperture with adjustable angles for adjacent aperture stops includes an angle-adjustable variable aperture assembly 1. A drive ring 101 is provided on the upper side of the angle-adjustable variable aperture assembly 1, and a track groove 105 is provided on the inner side of the drive ring 101. A fixing seat 103 is provided on the lower side of the drive ring 101. Positioning holes 104 are respectively opened around the inner side of the fixing seat 103. A rotating pin 107 is embedded in the inner wall of the positioning hole 104. An aperture blade 102 is provided on one side of the rotating pin 107, and a sliding pin 106 is provided on the other side of the aperture blade 102. The outer wall of the sliding pin 106 is embedded in the inner wall of the track groove 105 provided in the drive ring 101.

[0029] Please see the appendix Figure 1 AppendixFigure 3 Appendix Figure 4 and attached Figure 5 As shown, the sliding pin 106 is fixedly connected to the aperture blade 102, the rotating pin 107 is fixedly connected to the aperture blade 102, the sliding pin 106 is slidably connected to the track groove 105, the rotating pin 107 is rotatably connected to the positioning hole 104, the drive ring 101 is detachably installed to the fixed base 103, the number of positioning holes 104 is the same as the number of aperture blades 102, and the number of track grooves 105 is the same as the number of aperture blades 102.

[0030] Among them, the fixed base 103 is the main body supporting the variable aperture, and the positioning holes 104 provided on it are evenly distributed in an array around the axis of the fixed base 103.

[0031] The track grooves 105 provided in the drive ring 101 are evenly distributed in an array around the axis of the drive ring 101.

[0032] Among them, several sets of aperture blades 102 are driven to move along the track groove 105 by rotation. The aperture blades 102 are made of metal or non-metal opaque material, and their inner edges are through a designed curve with a cylindrical structure.

[0033] The working process of this utility model is as follows: Using the variable aperture designed in this scheme, adjacent aperture positions can be adjusted at equal angles. During operation, several sets of aperture blades 102 are assembled onto the positioning holes 104 on the fixed base 103 via rotating pins 107. According to design requirements, the aperture blades 102 are stacked clockwise or counterclockwise and assembled onto the inner side of the fixed base 103. The drive ring 101 is assembled onto the fixed base 103. The sliding pins 106 on the aperture blades 102 are installed on the track grooves 105 on the drive ring 101. The aperture blades 102 rotate around the axis of the rotating pins 107, and the sliding pins 106 slide along the track grooves 105 on the drive ring 101. When 101 rotates, the aperture blades 102 are driven to rotate synchronously by the track groove 105. The inner edges of several sets of aperture blades 102 form an equilateral polygon, which facilitates the equal angle adjustment of adjacent aperture positions. The aperture diameters in the order of aperture positions are D1, D2, D3... The rotation angle of the drive ring 101 between adjacent aperture positions is K. By designing the trajectory curve of the track groove 105, when the rotation angle of the drive ring 101 is K, the equilateral polygon formed by several sets of aperture blades 102 has the same effect as the aperture diameters D1, D2, D3..., thereby achieving that the rotation angle of the drive ring 101 between adjacent aperture positions is K, which is convenient for people to operate and use.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable aperture with adjacent aperture stops adjustable at equal angles, comprising an angle-adjustable variable aperture assembly (1), characterized in that: The adjustable aperture assembly (1) has a drive ring (101) on its upper side, a track groove (105) on its inner side, and a fixing seat (103) on its lower side. The fixing seat (103) has positioning holes (104) on its inner circumference. A rotating pin (107) is fitted into the inner wall of the positioning hole (104). An aperture blade (102) is provided on one side of the rotating pin (107), and a sliding pin (106) is provided on the other side of the aperture blade (102). The outer wall of the sliding pin (106) is fitted into the inner wall of the track groove (105) of the drive ring (101).

2. The variable aperture with adjacent aperture stops adjustable at equal angles according to claim 1, characterized in that: The sliding pin (106) is fixedly connected to the aperture blade (102).

3. A variable aperture with adjacent aperture stops adjustable at equal angles according to claim 1, characterized in that: The rotating pin (107) is fixedly connected to the aperture blade (102).

4. A variable aperture with adjacent aperture stops adjustable at equal angles according to claim 1, characterized in that: The sliding pin (106) is slidably connected to the track groove (105).

5. A variable aperture with adjacent aperture stops adjustable at equal angles according to claim 1, characterized in that: The rotating pin (107) is rotatably connected to the positioning hole (104).

6. A variable aperture with adjacent aperture stops adjustable at equal angles according to claim 1, characterized in that: The drive ring (101) and the fixed base (103) are detachably installed.

7. A variable aperture with adjacent aperture stops adjustable at equal angles according to claim 1, characterized in that: The number of positioning holes (104) is the same as the number of aperture blades (102), and the number of track grooves (105) is the same as the number of aperture blades (102).

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