CN116841104A

CN116841104A - Device for stepwise adjusting aperture size and application method thereof

Info

Publication number: CN116841104A
Application number: CN202210292217.9A
Authority: CN
Inventors: 林海荣; 杨光; 欧埒君
Original assignee: Taizhou Shenglin Photoelectric Technology Co ltd
Current assignee: Taizhou Shenglin Photoelectric Technology Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2023-10-03

Abstract

The invention discloses projector equipment, which aims to provide equipment for adjusting the aperture size in a stepping manner.

Description

Device for stepwise adjusting aperture size and application method thereof

Technical Field

The invention relates to the field of projector equipment, in particular to equipment for stepwise adjusting the size of an aperture and a using method thereof.

Background

The projector, also called projector, is a device capable of projecting images or videos onto a curtain, and can be connected with computers, VCD, DVD, BD, game machines, DV and the like through different interfaces to play corresponding video signals, and is widely applied to families, offices, schools and entertainment places, according to different working modes, CRT, LCD, DLP and other different types, the device capable of stepwise adjusting the aperture size is an important component in the projector, the existing products in the industry are manually adjusted products at present, namely, a rocker is added on a turntable to manually adjust or externally connected with a power mechanism, so that the products are opened or closed, the aperture size is usually manually adjusted, but the difficulty of the products in the optimal position is higher, the speed of the products in the adjustment of the aperture size is unstable, the adjustment precision is not high, and the difficulty of the adjustment to the optimal position is higher. Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a device for stepwise adjusting the aperture size and a using method thereof.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a step-by-step equipment of adjusting light ring size, includes fixing base, blade group, carousel, solid fixed ring, driving motor, light sense subassembly, well accuse subassembly and FPC circuit, and the blade group sets up on the fixing base, and the carousel cladding is on the blade group, and gu fixed ring sets up on the carousel, and driving motor sets up on the fixing base, and driving motor output is connected with the carousel, and FPC circuit and driving motor fixed connection, light sense subassembly and well accuse subassembly set up in driving motor.

The invention is further provided with: the blade group comprises at least 8 blades, the blades form the blade group through stacking and mounting, positioning columns are arranged at two ends of the arc length direction of the blades, and the positioning columns are arranged at different sides of the blades.

The invention is further provided with: the rotary table is provided with a round hole and teeth, the round hole is used for fixing the blade group, the round hole is mutually matched with a positioning column arranged on the blade, and the teeth are arranged on the periphery of the rotary table.

The invention is further provided with: the light sensing component is arranged as a photosensitive sensor, the photosensitive sensor is used for detecting the light quantity and then controlling the operation of the driving motor, and the central control component is connected with the light sensing component.

The invention is further provided with: the driving motor is used for driving the turntable to rotate.

The invention is further provided with: the blade is made of metal and has toughness.

The invention is further provided with: the fixed ring is set to 240 degree opening ring, and the fixed ring passes through screw fixed mounting on the fixing base.

The invention is further provided with: the drive motor is provided as a stepper motor.

The invention is further provided with: a method for using a device for stepwise adjusting aperture size comprises the following steps,

s1, in a light quantity judging stage, capturing outside light change through a photosensitive sensor, transmitting captured light real-time change information to a central control assembly, and adjusting the operation of a stepping motor through further detection and analysis of the information by the central control assembly;

s2, in the working stage of the stepping motor, the aperture is adjusted by controlling the rotating angle of the turntable through the working of the stepping motor, comprising the following procedures,

step S20, determining an aperture procedure, wherein at any moment, an optimal position always exists to enable the light-transmitting hole to be of an optimal size, the optimal position is obtained through the central control assembly, and the stepping motor is controlled to rotate towards the optimal position;

and S21, adjusting the aperture procedure, wherein the aperture procedure is synchronously performed through a full-step mode and a half-step mode, the aperture is required to be rotated to an nth step when the aperture is adjusted to an optimal position, the optimal position of the aperture is between the nth step and the n+1 step, meanwhile, an nth step exists between the nth step and the n+1 step, and the aperture is the optimal position of the size of the light passing hole when the aperture is rotated to the nth step.

And S22, a real-time judging process, namely detecting the light quantity in real time through a photosensitive sensor, and automatically executing the step S1 when the light is changed.

Through adopting above-mentioned technical scheme, can be with this product and other rear end products lug connection through the fixing base, realize with other rear end products an organic whole and combine, through this product control other rear end products, simple installation convenient and fast.

The stepping motor is used for providing power for other equipment of the product, the integrated design of the stepping motor and the aperture is realized, when the aperture of the equipment moves, a full-driving mode of the light sensor and the stepping motor is adopted, a rapid high-precision intelligent aperture adjusting scheme is realized, the high-precision adjustment of the aperture can be realized by arranging the blade group with 8 blades, when external light rays or a place change, the photosensitive sensor performs response according to the light source change of the place, the optimal light passing requirement is intelligently maintained, and the advantage that the aperture can be maintained at an optimal position for a longer time is realized.

The blade material adopts metal and has a ductile material, so that the durable service life of the product during high-frequency switching is ensured, and the surface of the blade product adopts a extinction coating process, so that the illumination intensity of 3W/mm is 600H in the wavelength range of 400-800nm, the temperature of 170 ℃ is 170 ℃, the surface of the product is free from damage and volatile substances, and the surrounding environment is prevented from being polluted.

Drawings

FIG. 1 is a schematic view of an apparatus for stepwise adjusting aperture size according to an embodiment of the present invention;

reference numerals in the drawings: 1. a fixing seat; 2. a blade group; 3. a turntable; 4. a fixing ring; 5. a driving motor; 6. an FPC circuit.

Detailed Description

An apparatus for stepwise adjusting the aperture size and a method for using the same according to an embodiment of the present invention will be further described with reference to fig. 1.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

The utility model provides a device of step-by-step adjustment light ring size, including fixing base 1, blade group 2, carousel 3, solid fixed ring 4, driving motor 5, the light sensation subassembly, well accuse subassembly and FPC circuit 6, blade group 2 sets up on fixing base 1, carousel 3 cladding is on blade group 2, gu fixed ring 4 sets up on carousel 3, driving motor 5 sets up on fixing base 1, driving motor 5 output is connected with carousel 3, FPC circuit 6 and driving motor 5 fixed connection, light sensation subassembly and well accuse subassembly set up in driving motor 5, fixing base 1 sets up to the ring base, the well flutedly of middle part is set up and is used for the installation to place blade group 2 and carousel 3, fixing base 1 week side top evenly is provided with three slotted hole and is used for installing mode solid fixed ring 4, blade group 2 installs fixedly through the stopper that sets up in fixing base 1 bottom, the upper strata is provided with carousel 3, carousel 3 week side is provided with the teeth of a cogwheel with driving motor 5 output end is connected, through light quantity control driving motor 5 drive 3 rotations of light sensation subassembly, thereby obtain the best projection position, carousel 3 is as driven motor 5 and driving motor 5 can accomplish the quick connect in the rear end of the quick-end of a flexible printed circuit, the product is comparatively convenient for the product, can be dismantled after the equipment is installed in this and the position is fixed to the position is fixed in the end is comparatively practical, the equipment is suitable for the end after the equipment is installed.

The blade group 2 comprises at least 8 blades, the more the blades are arranged, the higher the control precision is, the 8 blades form the circular blade group 2 through stacking installation, positioning columns are arranged at two ends of the arc length direction of the blades, the positioning columns are arranged at the opposite sides of the blades, round holes and teeth are arranged on the rotary table 3, the round holes are used for fixing the blade group 2, the round holes are mutually matched with the positioning columns arranged on the blades, the two ends of the arc length direction of each blade are respectively provided with the positioning columns on two surfaces, the positioning columns are symmetrical along the chord length center vertical line during design, positive and negative distinction is avoided during assembly, the assembly difficulty is reduced, the assembly efficiency is improved, one of the positioning columns is used as a positioning function, the other one is used as a transmission function, the stacking of blade sheets Cheng Huanzhuang can be realized, the movement space of the blades is reduced, the thinning of the whole product can be realized, the blade has the shading effect as a product, the shape design has the design advantage of combining a fixed part, a transmission part and a functional part into a whole, the fixed ring 4 is arranged on the fixed seat 1 and is arranged at the top end of the rotary table 3, the fixed ring 4 is used for limiting the rotary table 3 and the blade, the limiting precision of the fixed ring 4 is 0.02mm, the stable movement space can be provided for the movement track of the rotary table 3 and the blade, the rotary table 3 is a transmission mechanism, the 1/4 circumference of the rotary table 3 is provided with gear teeth, the gear teeth can also be arranged on the 360-degree whole circular arc at the circumferential side of the rotary table 3, the gear teeth arrangement mode can ensure that the rotary table 3 has high precision, the surface treatment process of the blade is a novel process, the specific process flow is to increase the high temperature 170 ℃ after the surface of the blade is blackened, the process can ensure that no volatile substances are generated in the working environment of 170 ℃, the high temperature that can guarantee that the projecting apparatus produced when the operation can not heat the blade and lead to ambient air pollution, the blade material adopts the metal and has the material of toughness simultaneously, can guarantee that the projecting apparatus has more durable life-span when high frequency switches, secondly, blade product surface adopts extinction application, can guarantee that light is in 400-800nm wavelength range, illumination intensity 3W/mm, illumination 600 hours and temperature are in 170 ℃ environment, product surface does not have damage and volatile matter production, solid fixed ring 4 sets up to 240 open ring, gu fixed ring 4 passes through screw fixed mounting on fixing base 1, the screw position sets up in 3 recesses that fixing base 1 surface evenly set up, can guarantee that the fixed effect is best, make the product have higher stability, the photosensitive sensor sets up in driving motor 5, the photosensitive sensor is used for detecting the light quantity and then controlling driving motor 5's operation, well accuse subassembly and light sensing subassembly interconnect, be provided with the driving gear on the driving motor 5 output, the tooth intermeshing that sets up on driving gear and the carousel 3 is in, driving motor 5 is arranged in driving motor 3 rotates, driving motor 5 sets up to step motor driving motor 5 and is set up to the measuring the light quantity evenly in the 3 recesses that the surface evenly sets up, thereby guarantee that the effect is good real-time controlled in the light quantity is controlled to the projecting apparatus. A method of using a stepwise aperture size adjustment apparatus, comprising the steps of:

In step S1, the control of the motor is completed by adopting a design mode of optimizing software algorithms in the light sensor, the stepper motor and the central control assembly, the control turntable at the output end of the motor completes the judgment of the optimal light quantity, the light sensor is used for detecting, analyzing and adjusting the running of the stepper motor on the external light quantity, and the central control assembly is used for transmitting information in real time and driving and controlling the motor.

In step S20, the stepper motor has two modes during operation, including a full-step mode and a half-step mode, wherein the rotation angle of the full-step mode is defined as: a, A is as follows; the rotation angle of the half-step mode is defined as B, the rotation angle of the full-step mode is 2 times of the rotation angle of the half-step mode, the gear transmission principle is that the rotation accuracy of an aperture is higher when the ratio of d1 to d2 is smaller under the condition that the motor is unchanged, the rotation accuracy of the aperture is higher when the rotation angle of a turntable is smaller and the rotation accuracy of the aperture is higher when a stepping motor moves one step, and therefore high-accuracy intelligent rotation can be realized.

In step S21, the size of the light-passing hole presented by the N-th step and the n+1-th step is not the optimal size when the aperture is adjusted, so that a combination of a full-step mode and a half-step mode is adopted, namely, a combination of N steps exists between the N-th step and the n+1-th step, the N steps are between the N-th step and the n+1-th step, the size of the light-passing hole is the optimal position when the N-th step and the n+1-th step are rotated, the size of the light-passing hole is the optimal position at the moment, the advantages of the combination of the two modes are realized, the aperture size is quickly adjusted, the imaging effect of the size of the light-passing hole is optimal, meanwhile, the light sensor can sense the intensity of the light-passing hole when the aperture is driven by the stepping motor, the size of the light-passing hole is analyzed, the driving source is transmitted to the motor, the motor is adjusted, the aperture is adjusted by the fixed rotating disk, when the position of the aperture is between the N-th step and the n+1 step of the motor, the driving mode is adjusted again when the aperture is combined, the step number and the driving mode is switched, and the aperture is turned when the step motor is completed, the adjustment is repeatedly performed, the aperture is once controlled to the optimal size position.

In step S22, when the external light or the place where the light is located is changed, the photosensitive sensor performs step S1 according to the light source change of the place, so that the optimal light passing requirement can be intelligently maintained, and the advantage of maintaining the optimal position for a longer time can be achieved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention, but one skilled in the art can make common changes and substitutions within the scope of the technical solution of the present invention.

Claims

1. An apparatus for stepwise adjusting aperture size, characterized by: including fixing base (1), blade group (2), carousel (3), solid fixed ring (4), driving motor (5), light sense subassembly, well accuse subassembly and FPC circuit (6), blade group (2) set up on fixing base (1), carousel (3) cladding are on blade group (2), gu fixed ring (4) set up on carousel (3), driving motor (5) set up on fixing base (1), driving motor (5) output is connected with carousel (3), FPC circuit (6) and driving motor (5) fixed connection, light sense subassembly and well accuse subassembly set up in driving motor (5).

2. A device for stepwise adjusting the size of an aperture according to claim 1, wherein: the blade group (2) comprises at least 8 blades, the blades form the blade group (2) through stacking installation, positioning columns are arranged at two ends of the blade in the arc length direction, and the positioning columns are arranged at different sides of the blades.

3. A device for stepwise adjusting the size of an aperture according to claim 2, wherein: the rotary table (3) is provided with a round hole and teeth, the round hole is used for fixing the blade group (2), the round hole is mutually matched with a positioning column arranged on the blade, and the teeth are arranged on the periphery of the rotary table (3).

4. A device for stepwise adjusting the size of an aperture according to claim 3, wherein: the light sensing assembly is arranged as a photosensitive sensor, the photosensitive sensor is used for detecting the light quantity and further controlling the operation of the driving motor (5), and the central control assembly is connected with the light sensing assembly.

5. The apparatus for stepwise adjusting a size of a diaphragm according to claim 4, wherein: the driving motor (5) is provided with a driving gear at the output end, the driving gear is connected with teeth on the turntable (3) in a meshed and toothed manner, and the driving motor (5) is used for driving the turntable (3) to rotate.

6. The apparatus for stepwise adjusting a size of a diaphragm according to claim 5, wherein: the blade is made of metal and has toughness.

7. The apparatus for stepwise adjusting a size of a diaphragm according to claim 6, wherein: the fixing ring (4) is a 240-degree opening ring, and the fixing ring (4) is fixedly arranged on the fixing seat (1) through screws.

8. The apparatus for stepwise adjusting a size of a diaphragm according to claim 7, wherein: the driving motor (5) is arranged as a stepping motor.

9. A method of using a stepwise aperture size adjustment device according to claims 1-8, comprising the steps of:

s21, an aperture adjusting procedure is synchronously carried out through a full-step mode and a half-step mode, the aperture is adjusted to an optimal position, the aperture is required to rotate to an nth step, the optimal position of the aperture is between the nth step and the n+1 step, meanwhile, an nth step exists between the nth step and the n+1 step, and the aperture is the optimal position of the size of the light passing hole when the aperture is rotated to the nth step;