Photographing auxiliary device applied to hair evaluation

Abstract

The utility model relates to a photographing auxiliary device for hair evaluation, including support, arc guide rail and positioning assembly, the side surface of arc guide rail is away from its center of circle and is connected with support rotation, the side surface of arc guide rail is used for installing the clamping piece of camera and is movably arranged, positioning assembly includes jaw rest and laser sensor, jaw rest is installed on the support, jaw rest is located below arc guide rail, and the side surface of arc guide rail is towards its center of circle and is towards jaw rest, laser sensor is two, two laser sensors are along the front and back direction interval arrangement of subject. In different photographing period, because the head position of subject and camera position are positioned, make the picture of different time period all correspond to the same area on the scalp, and then improve the accuracy of hair evaluation.

Description

Technical Field

[0001] This utility model relates to the field of medical aesthetic equipment technology, and in particular to a photo-assisted device for hair assessment. Background Technology

[0002] With changing times, people are paying increasing attention to beauty, and hair plays a significant role in this. It's well known that hair loss is becoming increasingly prevalent due to factors such as diet, social stress, environmental pollution, and hair perming and dyeing. In hair care and hair loss prevention treatments, photographs of the scalp are frequently taken for comparison during subsequent hair assessments. During these photographs, a tripod is typically used to stabilize the camera, and the subject sits beneath it. However, due to the long time span before and after treatment, the subject's head position varies considerably in each photograph, resulting in inconsistent scalp areas shown in images taken at different times, thus affecting the accuracy of hair assessments. Utility Model Content

[0003] The purpose of this invention is to propose a photographic auxiliary device for hair assessment, which can locate the position of the subject's head, so that the scalp area captured at different times is the same, thereby improving the accuracy of hair assessment.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A photographic aid device for hair assessment is provided, comprising a bracket, an arc-shaped guide rail, and a positioning component. The side of the arc-shaped guide rail opposite to its center is rotatably connected to the bracket. The side of the arc-shaped guide rail facing its center is movably provided with a clamp for mounting a camera. The positioning component includes a chin rest and laser sensors. The chin rest is mounted on the bracket and is located below the arc-shaped guide rail, with the side of the arc-shaped guide rail facing its center towards the chin rest. There are two laser sensors, which are spaced apart along the front-back direction of the subject.

[0006] Furthermore, the positioning component also includes a support rod, one end of which is connected to the bracket and the other end of which is connected to the chin rest.

[0007] Furthermore, the top of the jaw support is formed with a groove for accommodating the subject's lower jaw, and a cleaning film is provided on the groove wall.

[0008] Furthermore, an air chamber is formed inside the jaw support, and several air holes communicating with the air chamber are provided on the groove wall of the groove. An air passage is formed inside the support rod, and the air passage communicates with the air chamber. An air pump is connected to the end of the air passage away from the air chamber.

[0009] Furthermore, the support includes a base, a column, and a crossbeam. The column is vertically mounted on the base, the crossbeam is horizontally mounted on the column, and the arc-shaped guide rail is movably mounted on the crossbeam.

[0010] Furthermore, the column includes a lower column connected to the base and an upper column connected to the crossbeam. The upper column is inserted into the lower column, and the upper column and the lower column are selectively fixed by a locking device.

[0011] Furthermore, the upper column is inserted into the lower column, and the outer surface of the upper column is provided with scale lines.

[0012] Furthermore, the laser sensor can be vertically mounted on the lower column, and the lower column is also provided with an indicator light that is electrically connected to the laser sensor.

[0013] Furthermore, the bracket also includes a mounting base, a guide groove is provided in the crossbeam, one end of the mounting base extends into the guide groove and is rotatably connected to the guide groove, the other end of the mounting base extends to the outside of the crossbeam, and the arc-shaped guide rail is rotatably connected to the mounting base.

[0014] Furthermore, a number of lighting lamps are spaced apart on one side of the arc-shaped guide rail facing its center.

[0015] The beneficial effects of this invention are as follows: By rotating an arc-shaped guide rail on the support and mounting the camera on it, the camera can be adjusted to various directions of the subject's head using the rotation of the arc-shaped guide rail, thus achieving camera positioning and support. By setting a chin rest and two laser sensors on the support, the chin rest supports and fixes the subject's head, and combined with the detection feedback from the laser sensors, the subject's head is adjusted to the correct position. Because the subject's head position and camera position are both accurately positioned at different times of photography, images taken at different times correspond to the same area of ​​the scalp, thereby improving the accuracy of hair assessment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a photo-assisted device for hair assessment according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the installation of the crossbeam and mounting base according to an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the positioning of the laser sensor according to an embodiment of the present invention.

[0019] Figure 4This is a cross-sectional view of the jaw support according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Bracket; 11. Base; 12. Column; 121. Lower column; 122. Upper column; 123. Locking element; 124. Scale line; 13. Crossbeam; 131. Guide groove; 132. Limiting groove; 133. Roller; 134. Connecting shaft; 135. Screw; 136. Adjusting nut; 137. Elongated hole; 14. Mounting seat; 2. Arc-shaped guide rail; 3. Positioning assembly; 31. Jaw support; 311. Housing; 312. Air chamber; 313. Air hole; 314. Cleaning membrane; 32. Support rod; 321. Air passage; 33. Laser sensor; 4. Clamping element; 5. Nose. Detailed Implementation

[0022] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 3As shown, this embodiment provides a photographic assistance device (hereinafter referred to as the photographic assistance device) for hair assessment, which supports and positions the camera during hair assessment, ensuring that the camera accurately faces the same area on the scalp when taking photos at different times. The photographic assistance device includes a support 1, an arc-shaped guide rail 2, a positioning component 3, and a clamping component 4. The support 1 provides overall support, and the arc-shaped guide rail 2 and the positioning component 3 are mounted on the support 1. The arc-shaped guide rail 2 is used to mount the camera and restrict its movement, ensuring the camera is aligned with the area being tested on the scalp. The positioning component 3 positions the subject's head, ensuring the subject maintains the same posture when taking photos at different times. The arc-shaped guide rail 2 has an arc-shaped structure, with its center located below it. The side of the arc-shaped guide rail 2 opposite to its center is rotatably connected to the support 1, and the axis of rotation of the arc-shaped guide rail 2 extends vertically. A clamping member 4 is movably mounted on one side of the arc-shaped guide rail 2 facing its center, i.e., the clamping member 4 is installed on the bottom surface of the arc-shaped guide rail 2. The clamping member 4 is used to mount the camera. When the camera is mounted on the clamping member 4, the rotation of the arc-shaped guide rail 2 allows the camera to be moved to various directions around the subject's head to adjust the camera to a suitable position for photographing the area being measured on the scalp. The positioning component 3 includes a chin rest 31 and laser sensors 33. The chin rest 31 is mounted on the bracket 1 and is used to support the subject's chin to support the subject's head. The chin rest 31 is located below the arc-shaped guide rail 2, and the side of the arc-shaped guide rail 2 facing its center faces the chin rest 31. There are two laser sensors 33, both of which are mounted on the bracket 1 and are spaced apart along the subject's front-back direction.

[0024] Understandably, the laser sensor 33 is used to detect the position of the subject's nose 5. When the subject's chin is placed on the chin rest 31, the subject's head will shift forward, backward, left, and right at different times. The laser sensor 33 is located on one side of the subject in the left-right direction. By measuring the distance between the nose 5 and the support 1, the laser sensor 33 can obtain the amount of the subject's head shift in the left-right direction, allowing the subject to adjust the position of their head in the left-right direction. By setting two laser sensors 33 along the subject's front-back direction, it is possible to detect whether the nose 5 can block the laser, thereby obtaining the subject's head shift in the front-back direction, so that the subject can adjust the position of their head in the front-back direction. For example, when one laser sensor 33 can detect the nose 5, while the other laser sensor 33 cannot detect the nose 5, the subject's head is in the correct position; when both laser sensors 33 can detect the nose 5, the subject's head has shifted forward; when neither laser sensor 33 can detect the nose 5, the subject's head has shifted backward. In this embodiment, an arc-shaped guide rail 2 is rotatably mounted on the support 1, and the camera is installed on the arc-shaped guide rail 2. The rotation of the arc-shaped guide rail 2 allows the camera to be adjusted to various directions of the subject's head, achieving camera positioning and support. A chin rest 31 and two laser sensors 33 are installed on the support 1. The chin rest 31 supports and fixes the subject's head, and the detection feedback from the laser sensors 33 helps adjust the subject's head to the correct position. Because the subject's head position and the camera position are both accurately positioned during different photo-taking periods, images taken at different times correspond to the same area of ​​the scalp, thereby improving the accuracy of hair assessment.

[0025] Specifically, the support frame 1 includes a base 11, a column 12, and a crossbeam 13. The base 11 is equipped with a counterweight to ensure the stability of the entire support frame 1. The column 12 is vertically positioned, with its bottom end connected and fixed to the base 11. The crossbeam 13 is horizontally positioned, with one end connected and fixed to the top of the column 12, and the other end suspended. An arc-shaped guide rail 2 is movably mounted on the crossbeam 13. To facilitate height adjustment of the arc-shaped guide rail 2 to accommodate different height requirements of subjects, the column 12 is designed as a telescopic structure. The column 12 includes a lower column 121 and an upper column 122. The lower column 121 is mounted on the base 11, and the upper column 122 is used to mount the crossbeam 13. The upper column 122 and the lower column 121 are inserted into each other, and the height of the arc-shaped guide rail 2 can be adjusted by changing the insertion depth of the two components. The upper column 122 and the lower column 121 are selectively fixed together by a locking member 123, which can be a hand-tightening screw. The locking member 123 is installed on the lower column 121. In this embodiment, the outer diameter of the lower column 121 is larger than the outer diameter of the upper column 122, that is, the upper column 122 is inserted into the lower column 121. The outer surface of the upper column 122 is provided with scale lines 124 to record the height of the arc-shaped guide rail 2.

[0026] Specifically, the laser sensor 33 is vertically mounted on the outer wall of the lower column 121 to adjust to a suitable position for different subjects. An indicator light is provided on the lower column 121, electrically connected to the laser sensor 33. The indicator light allows observation of whether the nose 5 has been detected by the laser sensor 33, facilitating adjustment of the subject's head position.

[0027] Specifically, the bracket 1 also includes a mounting base 14, on which the arc-shaped guide rail 2 is mounted. A guide groove 131 is provided within the crossbeam 13, extending along the length of the crossbeam 13. One end of the mounting base 14 extends into the guide groove 131 and is rotatably connected to it, while the other end extends to the outside of the crossbeam 13. The arc-shaped guide rail 2 is mounted on the end of the mounting base 14 located outside the crossbeam 13, and is rotatably connected to the mounting base 14. Two limiting grooves 132 are provided on the wall of the guide groove 131, distributed on both sides of the width of the guide groove 131. A connecting shaft 134 is provided within the guide groove 131, and rollers 133 are provided within the limiting grooves 132. Both ends of the connecting shaft 134 are rotatably connected to the two rollers 133, and the mounting base 14 is connected to the connecting shaft 134. Roller 133 rolls within limiting groove 132 to achieve a rolling connection between mounting base 14 and crossbeam 13. Limiting groove 132 and roller 133 are configured to confine roller 133 within limiting groove 132, allowing roller 133 to roll only within this groove. A screw 135 is provided on the side of connecting shaft 134 opposite to mounting base 14. An elongated hole 137 is provided on the top of crossbeam 13, and one end of screw 135 passes through the elongated hole 137 and extends to the outside of crossbeam 13. An adjusting nut 136 is provided at the end of screw 135 located outside crossbeam 13, allowing mounting base 14 to be locked onto crossbeam 13. In this embodiment, mounting base 14 is adjusted to different positions on crossbeam 13 by roller 133 and locked using adjusting nut 136 and screw 135, achieving a movable arrangement between arc-shaped guide rail 2 and crossbeam 13.

[0028] Specifically, the arc-shaped guide rail 2 is rotatably connected to the mounting base 14. The arc-shaped guide rail 2 and the mounting base 14 can be connected via a damped rotating mechanism found in existing technology, or via existing rotating components such as a motor. By rotating the arc-shaped guide rail 2, the camera on it can be moved to a suitable shooting position. Several illumination lights are spaced apart on one side of the arc-shaped guide rail 2 facing its center. These lights provide supplementary lighting during photography to improve the brightness and clarity of the photos.

[0029] Specifically, refer to Figure 1 and Figure 4As shown, the positioning component 3 also includes a support rod 32, one end of which is connected to the bracket 1, and the other end is connected to the chin rest 31. The support rod 32 is configured to maintain a certain distance between the chin rest 31 and the bracket 1, allowing for head clearance. A groove is formed on the top of the chin rest 31 to accommodate the subject's lower jaw. A cleaning film 314 is provided on the groove wall; the cleaning film 314 is a disposable consumable for hygiene purposes. The chin rest 31 includes a housing 311 and an air chamber 312 formed within the housing 311. A groove is formed on the top of the housing 311, and several air holes 313 are provided on the groove wall, communicating with the air chamber 312. An air passage 321 is formed within the support rod 32, one end of which communicates with the air chamber 312, and the other end of which is connected to an air pump. The cleaning film 314 is installed in the groove and air is pumped out so that the cleaning film 314 can fit well against the groove wall, reducing the foreign body sensation when the subject places his / her jaw on the jaw support 31.

[0030] In other embodiments, the mounting base 14 and the crossbeam 13, and the upper column 122 and the lower column 121, can also be connected using existing gear-rack transmission mechanisms or lead screw-slider transmission mechanisms to achieve movable arrangement between the mounting base 14 and the crossbeam 13, and telescopic arrangement between the upper column 122 and the lower column 121. The connection between the clamping member 4 and the arc-shaped guide rail 2 can be the same as the connection between the mounting base 14 and the crossbeam 13, so that the clamping member 4 can move along the length of the arc-shaped guide rail 2. The specific connection form between the clamping member 4 and the arc-shaped guide rail 2 will not be described in detail here.

[0031] In this embodiment, the method of using the photography assistance device is as follows: Adjust the height of the crossbeam 13, adjust the relative position between the mounting base 14 and the crossbeam 13, adjust the direction of the arc-shaped guide rail 2, and adjust the relative position between the clamping member 4 and the arc-shaped guide rail 2 so that the camera is in the same position when taking photos at different times, thus achieving camera positioning. Then, have the subject place their chin on the chin rest 31, and use the detection feedback from the laser sensor 33 to adjust the head position so that the head is in the same position when taking photos at different times, thus achieving head positioning. Finally, take photos of the head with the camera so that the corresponding scalp area in the pictures taken at different times is consistent, facilitating subsequent hair evaluation.

[0032] The beneficial effects of this embodiment are as follows: By rotating the arc-shaped guide rail 2 on the support 1 and mounting the camera on the arc-shaped guide rail 2, the camera can be adjusted to various directions of the subject's head using the rotation of the arc-shaped guide rail 2, thereby achieving camera positioning and support. By setting a chin rest 31 and two laser sensors 33 on the support 1, the chin rest 31 supports and fixes the subject's head, and combined with the detection feedback from the laser sensors 33, the subject's head is adjusted to the correct position. Because the subject's head position and camera position are both positioned at different times of the photographing process, the images taken at different times correspond to the same area on the scalp, thus improving the accuracy of hair assessment.

[0033] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A photo-assisted device for hair assessment, characterized in that, The device includes a support, an arc-shaped guide rail, and a positioning assembly. The side of the arc-shaped guide rail opposite to its center is rotatably connected to the support. The side of the arc-shaped guide rail facing its center is movably equipped with a clamp for mounting a camera. The positioning assembly includes a chin rest and laser sensors. The chin rest is mounted on the support and is located below the arc-shaped guide rail, with the side of the arc-shaped guide rail facing its center towards the chin rest. There are two laser sensors, which are spaced apart along the anterior-posterior direction of the subject.

2. The photo-assisted device for hair assessment according to claim 1, characterized in that, The positioning component also includes a support rod, one end of which is connected to the bracket and the other end of which is connected to the jaw support.

3. The photo-assisted device for hair assessment according to claim 2, characterized in that, The top of the chin rest forms a groove for accommodating the subject's lower jaw, and a cleaning film is provided on the groove wall.

4. The photo-assisted device for hair assessment according to claim 3, characterized in that, An air chamber is formed inside the jaw support, and several air holes communicating with the air chamber are provided on the groove wall of the groove. An air passage is formed inside the support rod, and the air passage is communicating with the air chamber. An air pump is connected to the end of the air passage away from the air chamber.

5. The photo-assisted device for hair assessment according to claim 1, characterized in that, The support includes a base, a column, and a crossbeam. The column is vertically mounted on the base, the crossbeam is horizontally mounted on the column, and the arc-shaped guide rail is movably mounted on the crossbeam.

6. The photo-assisted device for hair assessment according to claim 5, characterized in that, The column includes a lower column connected to the base and an upper column connected to the crossbeam. The upper column is inserted into the lower column, and the upper column and the lower column are selectively fixed by locking components.

7. The photo-assisted device for hair assessment according to claim 6, characterized in that, The upper column is inserted into the lower column, and the outer surface of the upper column is provided with scale lines.

8. The photo-assisted device for hair assessment according to claim 7, characterized in that, The laser sensor is vertically mounted on the lower column, and the lower column is also equipped with an indicator light that is electrically connected to the laser sensor.

9. The photo-assisted device for hair assessment according to claim 5, characterized in that, The bracket also includes a mounting base, a guide groove is provided in the crossbeam, one end of the mounting base extends into the guide groove and is rotatably connected to the guide groove, the other end of the mounting base extends to the outside of the crossbeam, and the arc-shaped guide rail is rotatably connected to the mounting base.

10. The photographic aid device for hair assessment according to any one of claims 1 to 9, characterized in that, The curved guide rail has several lights spaced apart on one side facing its center.

Images