A position and angle adjustment device for infrared digital imaging mechanism

Abstract

The present invention discloses a position and angle adjustment device for an infrared digital imaging mechanism, comprising a fixed adjustment plate, a camera lens holder fixed to the fixed adjustment plate, a 45° cold mirror mounted within the camera lens holder, an infrared digital imaging mechanism slidably mounted on the fixed adjustment plate, and an infrared digital imaging mechanism lens adjustment block mounted on the infrared digital imaging mechanism; the infrared digital imaging mechanism moves along a guide groove toward or away from the camera lens holder; the projection lens of the infrared digital imaging mechanism is fixedly connected to the infrared digital imaging mechanism lens adjustment block, and the infrared digital imaging mechanism lens adjustment block drives the projection lens of the infrared digital imaging mechanism to move toward or away from the camera lens holder to achieve fine angle adjustment. The present invention has the advantages of simple structure, strong practicality, and simple adjustment, and meets the needs for adjusting the size, position, and clarity of projected images.

Description

Technical Field

[0001] The present invention relates to the fields of optical projection and medical equipment, and in particular to a position and angle adjustment device for an infrared digital imaging mechanism. Background Art

[0002] Visual imaging of blood vessels utilizes the principle that the absorption rate of near-infrared light by hemoglobin in blood vessels is different from that of other tissues. Through a series of methods such as infrared backscattering image acquisition and micro-projection technology, the subcutaneous blood vessels are projected in situ onto the skin surface, thereby achieving the purpose of clearly displaying the subcutaneous blood vessels. In the fields of optical projection and medical devices, high requirements are usually placed on the accuracy and adjustment speed of optical adjustment devices. The position and angle adjustment devices of existing infrared digital imaging mechanisms are complex in structure, making it difficult to directly adjust the size, position, clarity, etc. of the projection. Additional moving axes are required to achieve the purpose of adjusting the plane position and angle, but this also increases the complexity and structural space of the adjustment structure, and the cost is relatively high. In addition, the assembly space is small, and the position and angle cannot be adjusted quickly during adjustment, making operation difficult. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a position and angle adjustment device for an infrared digital imaging mechanism, which has the advantages of simple structure, strong practicality and simple adjustment, and meets the needs of adjusting the size, position and clarity of the projected image.

[0004] The technical solution of the present invention is:

[0005] A position and angle adjustment device for an infrared digital imaging mechanism, comprising a fixed adjustment plate, a camera lens bracket fixed on the fixed adjustment plate, a 45° cold mirror installed in the camera lens bracket, an infrared digital imaging mechanism slidably arranged on the fixed adjustment plate, and an infrared digital imaging mechanism lens adjustment block arranged on the infrared digital imaging mechanism; a guide groove is provided on the upper end surface of the fixed adjustment plate, one end of the guide groove faces the camera lens bracket, and the other end of the guide groove faces away from the camera lens bracket, a slider at the bottom end of the infrared digital imaging mechanism is embedded in the guide groove and slides along the guide groove; a U-shaped groove with a horizontal opening is provided on the infrared digital imaging mechanism lens adjustment block, the U-shaped groove faces the camera lens bracket or faces away from the camera lens bracket, the projection lens of the infrared digital imaging mechanism is fixedly connected to the infrared digital imaging mechanism lens adjustment block, the locking bolt fixed on the infrared digital imaging mechanism passes through the U-shaped groove from bottom to top, and is locked and positioned with the infrared digital imaging mechanism lens adjustment block by a locking nut.

[0006] The 45° cold mirror is adhesively fixed on a 45° cold mirror fixing seat, and the 45° cold mirror fixing seat 5 is connected to the camera lens bracket.

[0007] The camera lens bracket includes two relatively parallel vertical side panels, and the 45° cold mirror fixing seat is located between the two vertical side panels. A pin hole is provided on the two vertical side panels adjacent to the bottom end, and the two pin holes overlap with each other. The two pins pass through the corresponding pin holes and are hinged to the bottom end of the 45° cold mirror fixing seat. The two vertical side panels are provided with inclined waist-shaped holes, that is, the axis of the waist-shaped hole forms an angle with the bottom edge of the vertical side panel, and a locking bolt is provided in each waist-shaped hole. The locking bolts in the two waist-shaped holes are both threadedly locked with the 45° cold mirror fixing seat.

[0008] The fixed adjustment plate is provided with four guide grooves, and there are four sliders, which are respectively fixed at the four corners of the bottom end of the infrared digital imaging mechanism. Each slider is embedded in the corresponding guide groove so that the infrared digital imaging mechanism moves along the four guide grooves toward or away from the camera lens bracket.

[0009] The infrared digital imaging mechanism lens adjustment block is an L-shaped plate structure. The projection lens of the infrared digital imaging mechanism is connected to the vertical part of the infrared digital imaging mechanism lens adjustment block through a fixing pin. The U-shaped groove is arranged on the horizontal part of the infrared digital imaging mechanism lens adjustment block, and the opening of the U-shaped groove faces away from the camera lens bracket.

[0010] Advantages of the present invention:

[0011] The present invention adjusts the infrared digital imaging mechanism's lens adjustment block, thereby fine-tuning the projection lens to change the projection angle. This results in projection images of varying sizes after reflection via a 45-degree cold mirror. Furthermore, the present invention adjusts the projection position by moving the infrared digital imaging mechanism within a guide slot, resulting in projection images of varying sizes after reflection via a 45-degree cold mirror. This invention can simultaneously adjust the size and position of the projection image to achieve the desired image clarity, and has the advantages of a simple structure, minimal space occupation, and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 It is a projection schematic diagram of the present invention. DETAILED DESCRIPTION

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] See Figure 1 A position and angle adjustment device for an infrared digital imaging mechanism includes a fixed adjustment plate 1, a camera lens holder 2 fixed to the fixed adjustment plate 1, a cold mirror fixing seat 3 installed in the camera lens holder 2, a 45° cold mirror 4 adhesively fixed to the 45° cold mirror fixing seat 3, an infrared digital imaging mechanism 5 slidably arranged on the fixed adjustment plate 1, and an infrared digital imaging mechanism lens adjustment block 6 arranged on the infrared digital imaging mechanism 5;

[0016] The camera lens holder includes two relatively parallel vertical side panels, a 45° cold mirror fixing seat 3 is located between the two vertical side panels, a pin hole is provided on each of the two vertical side panels near the bottom end, and the two pin holes overlap with each other, two pins 7 pass through the corresponding pin holes and are hinged to the bottom end of the 45° cold mirror fixing seat 3, and an oblique waist-shaped hole 8 is provided on each of the two vertical side panels, that is, the axis of the waist-shaped hole 8 forms an angle with the bottom edge of the vertical side panel, and a locking bolt 9 is provided in each waist-shaped hole 8, and the locking bolts 9 in the two waist-shaped holes are both threadedly locked with the 45° cold mirror fixing seat 3;

[0017] Four guide grooves 10 are provided on the upper end surface of the fixed adjustment plate 1, one end of the guide groove 10 faces the camera lens holder 2, and the other end of the guide groove 10 faces away from the camera lens holder 2. Corresponding sliders 11 are provided at the four corners of the bottom end of the infrared digital imaging mechanism 5. Each slider 11 is embedded in the corresponding guide groove 10 so that the infrared digital imaging mechanism 5 moves along the four guide grooves 10 toward or away from the camera lens holder 2;

[0018] The infrared digital imaging mechanism lens adjustment block 6 is an L-shaped plate structure. The projection lens of the infrared digital imaging mechanism 5 is connected to the vertical part of the infrared digital imaging mechanism lens adjustment block 6 through a fixing pin. The horizontal part of the infrared digital imaging mechanism lens adjustment block 6 is provided with a U-shaped groove 12 with an opening facing horizontally, and the opening of the U-shaped groove 12 faces away from the camera lens bracket 2. The locking bolt fixed on the infrared digital imaging mechanism 5 passes through the U-shaped groove 12 from bottom to top, and is locked and positioned with the infrared digital imaging mechanism lens adjustment block 6 through a locking nut.

[0019] See Figure 2 By adjusting the infrared digital imaging mechanism lens adjustment block 6, the projection lens of the infrared digital imaging mechanism 5 is fine-tuned to change the projection angle (see projection angle). Figure 2 C and D in the figure), different sizes of projection images are obtained after reflection by the 45° cold mirror 4; the present invention changes the projection position by moving the infrared digital imaging mechanism 5 in the guide groove 10 (the projection position is shown in FIG. Figure 2 A and B in the figure) are projected images of different sizes after being reflected by a 45° cold mirror.

[0020] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A position and angle adjustment device for an infrared digital imaging mechanism, characterized in that: The infrared digital imaging mechanism lens adjustment block is a plurality of lens adjustment blocks, each of which is a plurality of lens adjustment blocks, and the plurality of lens adjustment blocks are a plurality of lens adjustment blocks. The plurality of lens adjustment blocks are a plurality of lens adjustment blocks, and the plurality of lens adjustment blocks are a plurality of lens adjustment blocks. The 45° cold mirror is adhesively fixed to a 45° cold mirror fixing seat, and the 45° cold mirror fixing seat is connected to a camera lens bracket; The camera lens holder includes two relatively parallel vertical side panels, the 45° cold mirror fixing seat is located between the two vertical side panels, a pin hole is provided on each of the two vertical side panels adjacent to the bottom end, and the two pin holes overlap with each other, two pins pass through the corresponding pin holes and are hinged to the bottom end of the 45° cold mirror fixing seat, the two vertical side panels are provided with an inclined waist-shaped hole, that is, the axis of the waist-shaped hole forms an angle with the bottom edge of the vertical side panel, each waist-shaped hole is provided with a locking bolt, and the locking bolts in the two waist-shaped holes are both threadedly locked with the 45° cold mirror fixing seat; The infrared digital imaging mechanism lens adjustment block is an L-shaped plate structure. The projection lens of the infrared digital imaging mechanism is connected to the vertical part of the infrared digital imaging mechanism lens adjustment block through a fixing pin. The U-shaped groove is arranged on the horizontal part of the infrared digital imaging mechanism lens adjustment block, and the opening of the U-shaped groove faces away from the camera lens bracket.

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