CN110703539B

CN110703539B - Optical assembly

Info

Publication number: CN110703539B
Application number: CN201910999259.4A
Authority: CN
Inventors: 何凌刚; 许尧军; 梁海; 其他发明人请求不公开姓名
Original assignee: Shenzhen Hengtian Weiyan Technology Co ltd
Current assignee: Shenzhen Hengtian Weiyan Technology Co.,Ltd.
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2021-08-17
Anticipated expiration: 2039-10-17
Also published as: CN110703539A

Abstract

The invention relates to the field of optical components, in particular to an optical component. Including objective lens shell, the mirror body, preceding group, well a set of, well two, back group, space ring, preceding pressure cap, clamping ring, first expanding spring, back diaphragm, shading lid, guiding mechanism, positioning mechanism and explosion-proof mirror, the mirror body is established in the inside of objective lens shell, preceding group, well a set of, well two, back group and space ring are all established in the inside of mirror body in proper order, the clamping ring is established and is pushed down preceding group, well a set of, well two, back group and space ring in the right side of group at the back, first expanding spring establishes between objective lens shell and mirror body, back diaphragm threaded connection is on the right side of objective lens shell. By arranging the front group, the middle group and the rear group and utilizing the arrangement modes of the front group, the middle group and the rear group, higher coaxial precision can be obtained when shooting, the structure of the lens is optimized, and the shooting effect is greatly improved.

Description

Optical assembly

Technical Field

The invention relates to the field of optical components, in particular to an optical component.

Background

Optics is an important branch of physics and is also a subject related to optical engineering. In a narrow sense, optics is the science of light and vision, and the term optics was used earlier only for things that are related to the eyes and vision. While optics, as it is common today, is a broad term that is the science of studying the generation, transmission, reception and display of electromagnetic radiation in a wide range of wavebands from microwaves, infrared, visible, ultraviolet, up to X-rays and gamma rays, and the interaction with matter, the emphasis being placed on the range from infrared to ultraviolet, which is an important component of physics. The lens in the camera is also combined by optical components, and the shot image is refracted by using the principle in optics to record the good time.

The lens component is widely applied to optical devices at present, but the lens retraction can be caused when the lens is inclined upwards in the use process of the current optical lens, the lens is easy to be collided or hit foreign matters in the use process to damage the lens, and the shading cover in front of the lens is complex in steps and difficult to disassemble when being disassembled.

Disclosure of Invention

To address the problems in the prior art, the present invention provides an optical assembly.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an optical assembly, includes objective lens shell, the mirror body, preceding group, well a set of, well two groups, back group, space ring, preceding pressure cap, clamping ring, first expanding spring, back diaphragm, shading lid, guiding mechanism, positioning mechanism and explosion-proof mirror, the mirror body is established in the inside of objective lens shell, preceding group, well a set of, well two groups, back group and space ring are all established in the inside of mirror body in proper order, preceding pressure cap is established in the left side of objective lens shell, the clamping ring is established and is pushed down preceding group, well a set of, well two groups, back group and space ring on the right side of back group, first expanding spring establishes between objective lens shell and mirror body, back diaphragm threaded connection is on the right side of objective lens shell, the shading lid passes through guiding mechanism and positioning mechanism swing joint in the left side of objective lens shell, the inside fixedly connected with explosion-proof mirror of shading lid.

Specifically, the front group, the middle group and the rear group are respectively provided with two lenses, the lenses in the middle group are glued together, and the front group, the middle group and the rear group are respectively provided with one lens.

Specifically, the tolerance of the outer diameter of the front group, the middle group and the rear group and the tolerance of the inner diameter of the mirror body are set to be 5um, and the gap between the middle group and the mirror body is set to be 0.1mm-0.2 mm.

Specifically, guiding mechanism includes guide block and guide way, guide block fixed connection is in the outside of objective shell left end, the inboard at the shading lid is seted up to the guide way, guide way and guide block sliding connection.

Specifically, the positioning mechanism comprises a spring groove, a second telescopic spring, a limiting block, a limiting hole, a fixing block, a pressing groove, a pressing spring, a sliding mechanism, a pressing block and a pressing column, the spring groove is formed on the outer side of the objective shell, the limiting block is fixedly connected inside the spring groove through the second telescopic spring, the limiting hole is formed on the side portion of the right end of the shading cover, the limiting block is in pin connection with the limiting hole, the fixing block is fixedly connected on the outer side of the right end of the shading cover and corresponds to the limiting hole, the pressing groove is formed inside the fixing block, the pressing block is slidably connected inside the pressing groove through the sliding mechanism, the upper end of the pressing spring of the pressing groove is fixedly connected to the upper end of the pressing block, the lower end of the pressing spring is fixedly connected to the outer side of the shading cover, the pressing spring is arranged inside the pressing groove, and the pressing column penetrates through the pressing spring and is fixedly connected to the lower end of the pressing block, and the pressing column extends into the limiting hole and is movably connected with the limiting block.

Specifically, slide mechanism includes slider and spout, the spout is seted up in the inside of pressing the groove, slider fixed connection presses the outside of briquetting, slider and spout sliding connection.

Specifically, U type groove has been seted up in the outside of shading lid, the left side of shading lid outwards opens and is the tubaeform.

The invention has the beneficial effects that:

(1) according to the optical assembly, the front group, the middle group and the rear group are arranged, and the arrangement modes of the front group, the middle group and the rear group are utilized, so that higher coaxial precision can be obtained during shooting, the structure of a lens is optimized, and the shooting effect is greatly improved.

(2) According to the optical assembly, the light shielding cover, the explosion-proof mirror, the positioning mechanism and the guide mechanism are arranged, when shooting is carried out, the lens in the optical assembly is protected by the explosion-proof mirror inside the light shielding cover, so that the lens is prevented from being impacted and damaged, the protection of the optical assembly is improved, the guide mechanism and the positioning mechanism inside the light shielding cover facilitate the dismounting and the mounting of the light shielding cover, and the use of the light shielding cover is facilitated in the shooting process.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of an optical assembly according to the present invention;

FIG. 2 is a partial cross-sectional view of an optical assembly provided by the present invention;

FIG. 3 is a front view of an optical assembly provided by the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 2 of an optical assembly according to the present invention;

fig. 5 is a cross-sectional view of a light shielding cover of an optical assembly according to the present invention.

In the figure: 1. an objective lens housing; 2. a mirror body; 3. a front group; 4. one group of the two groups; 5. two groups in (1); 6. a rear group; 7. a space ring; 8. a front pressing cap; 9. pressing a ring; 10. a first extension spring; 11. a rear diaphragm; 12. a light-shielding cover; 13. a guide mechanism; 131. a guide block; 132. a guide groove; 14. a positioning mechanism; 141. a spring slot; 142. a second extension spring; 143. a limiting block; 144. a limiting hole; 145. a fixed block; 146. pressing the groove; 147. a pressing spring; 148. a sliding mechanism; 1481. a slider; 1482. a chute; 149. a pressing block; 1410. pressing the column; 15. an explosion-proof mirror; 16. a lens; 17. a U-shaped groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, the optical assembly of the present invention comprises an objective housing 1, a lens body 2, a front group 3, a middle group 4, a middle group 5, a rear group 6, a spacer 7, a front pressing cap 8, a pressing ring 9, a first expansion spring 10, a rear diaphragm 11, a light shielding cover 12, a guiding mechanism 13, a positioning mechanism 14 and an explosion-proof lens 15, wherein the lens body 2 is arranged inside the objective housing 1, the front group 3, the middle group 4, the middle group 5, the rear group 6 and the spacer 7 are arranged inside the lens body 2 in sequence, the front pressing cap 8 is arranged on the left side of the objective housing 1, the pressing ring 9 is arranged on the right side of the rear group 6 to press the front group 3, the middle group 4, the middle group 5, the rear group 6 and the spacer 7, the first expansion spring 10 is arranged between the objective housing 1 and the lens body 2, the rear diaphragm 11 is screwed on the right side of the objective housing 1, the light shielding cover 12 is movably connected to the left side of the objective housing 1 through the guiding mechanism 13 and the positioning mechanism 14, an explosion-proof mirror 15 is fixedly connected inside the shading cover 12.

Specifically, the front group 3, the middle group 4, the middle group 5 and the rear group 6 are all internally provided with two lenses 16, the two lenses 16 in the middle group 4 are glued together, and the two lenses 16 in the front group 3, the middle group 5 and the rear group 6 are all internally provided with one lens 16, so that the coaxial precision among optical components can be better improved.

Specifically, the outer diameter tolerance of the front group 3, the middle group 4 and the rear group 6 and the inner diameter tolerance of the mirror body 2 are set to be 5um, the gap between the middle group 5 and the mirror body 2 is set to be 0.1mm-0.2mm, the tolerance is most suitable for the matching of the principle between the optical components, and the shooting effect is favorably improved.

Specifically, guiding mechanism 13 includes guide block 131 and guide way 132, guide block 131 fixed connection is in the outside of objective housing 1 left end, guide way 132 sets up the inboard at shading lid 12, guide way 132 and guide block 131 sliding connection through guide way 132 and guide block 131 sliding connection, have made things convenient for shading lid 12 to insert the left side of objective lid and have installed.

Specifically, the positioning mechanism 14 includes a spring groove 141, a second extension spring 142, a limiting block 143, a limiting hole 144, a fixing block 145, a pressing groove 146, a pressing spring 147, a sliding mechanism 148, a pressing block 149 and a pressing column 1410, the spring groove 141 is opened on the outer side of the objective housing 1, the limiting block 143 is fixedly connected inside the spring groove 141 through the second extension spring 142, the limiting hole 144 is opened on the right end side of the light-shielding cover 12, the limiting block 143 is in pin connection with the limiting hole 144, the fixing block 145 is fixedly connected on the outer side of the right end of the light-shielding cover 12, the fixing block 145 corresponds to the limiting hole 144, the pressing groove 146 is opened inside the fixing block 145, the pressing block 149 is slidably connected inside the pressing groove 146 through the sliding mechanism 148, the upper end of the pressing spring 147 of the pressing groove 146 is fixedly connected to the upper end of the pressing block 149, the lower end of the pressing spring 147 is fixedly connected on the outer side of the light-shielding cover 12, and the pressing spring 147 is arranged inside the pressing groove 146, the pressing column 1410 penetrates through the pressing spring 147 and is fixedly connected to the lower end of the pressing block 149, the pressing column 1410 extends into the limiting hole 144 and is movably connected with the limiting block 143, the limiting block 143 in the positioning mechanism 14 is retracted into the spring groove 141 through the second expansion spring 142 in the spring groove 141 when the pressing column 1410 is inserted, when the limiting groove is opposite to the spring groove 141, the limiting block 143 releases and bounces up through the second expansion spring 142 and is inserted into the limiting hole 144 to position the lens, and the lens cover 12 is conveniently fixed on the left side of the objective cover.

Specifically, the sliding mechanism 148 includes a sliding block 1481 and a sliding groove 1482, the sliding groove 1482 is formed inside the pressing groove 146, the sliding block 1481 is fixedly connected to the outer side of the pressing block 149, the sliding block 1481 is slidably connected to the sliding groove 1482, and the sliding block 1481 slides inside the sliding groove 1482, so that the pressing block 149 slides inside the pressing groove 146, which facilitates the detachment of the light shielding cover 12.

Specifically, U type groove 17 has been seted up in the outside of shading lid 12, the left side of shading lid 12 outwards opens and is tubaeform, is favorable to improving the effect of shading.

When the lens is used, the arrangement mode of the front group 3, the middle group 4, the middle group 5 and the rear group 6 is utilized, so that higher coaxial precision can be obtained during shooting, the structure of the lens is optimized, the shooting effect is greatly improved, and the explosion-proof lens 15 in the shading cover 12 at the right end of the objective shell 1 effectively prevents an optical component from being impacted and damaged; when the light shield cover 12 is installed, the light shield cover 12 is inserted into the left side of the objective lens cover through the sliding connection of the guide groove 132 and the guide block 131 in the guide mechanism 13 at the inner side of the light shield cover 12 and the outer side of the objective lens shell 1, the limit block 143 in the positioning mechanism 14 is retracted into the inner side of the spring groove 141 through the second expansion spring 142 in the spring groove 141 when the light shield cover is inserted, and when the limit groove is opposite to the spring groove 141, the limit block 143 is released to be inserted into the inner side of the limit hole 144 through the second expansion spring 142 to position the light shield; when the light-shielding cover 12 is detached, the pressing block 149 in the positioning mechanism 14 is pressed, the pressing block 149 presses the pressing spring 147 to contract through pressure, the pressing block 149 slides in the sliding groove 1482 through the sliding block 1481 in the sliding mechanism 148 to enable the pressing block 149 to slide in the pressing groove 146, the pressing block 149 moves downwards to drive the pressing column 1410 to move downwards, the pressing column 1410 moves downwards to abut against the limiting block 143, the limiting block 143 abuts against the inside of the spring groove 141, the light-shielding lens is detached from the left end of the objective housing 1 through the guide groove 132, after the pressing block 149 is released, the pressing spring 147 is released, the pressing block 149 and the pressing column 1410 return to the original position, and the use and the detachment of the light-shielding cover 12 are facilitated.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an optical assembly, includes objective lens shell (1), the mirror body (2), preceding group (3), well a set of (4), well two (5), back group (6), spacer ring (7), preceding pressure cap (8), clamping ring (9), first expanding spring (10), back diaphragm (11), shading lid (12), guiding mechanism (13), positioning mechanism (14) and explosion-proof mirror (15), its characterized in that: the endoscope body (2) is arranged inside an objective lens shell (1), the front group (3), the middle group (4), the middle group (5), the rear group (6) and the spacer ring (7) are sequentially arranged inside the endoscope body (2), the front pressing cap (8) is arranged on the left side of the objective lens shell (1), the pressing ring (9) is arranged on the right side of the rear group (6) and presses the front group (3), the middle group (4), the middle group (5), the rear group (6) and the spacer ring (7), the first telescopic spring (10) is arranged between the objective lens shell (1) and the endoscope body (2), the rear diaphragm (11) is in threaded connection with the right side of the objective lens shell (1), the shading cover (12) is movably connected to the left side of the objective lens shell (1) through a guide mechanism (13) and a positioning mechanism (14), and the interior of the shading cover (12) is fixedly connected with an explosion-proof endoscope (15);

the front group (3), the middle group (4), the middle group (5) and the rear group (6) are respectively provided with two lenses (16), the lenses (16) in the middle group (4) are glued together, and the front group (3), the middle group (5) and the rear group (6) are respectively provided with one lens (16);

the tolerance of the outer diameter of the front group (3), the middle group (4) and the rear group (6) and the tolerance of the inner diameter of the lens body (2) are set to be 5um, and the gap between the middle group (5) and the lens body (2) is set to be 0.1mm-0.2 mm;

the guide mechanism (13) comprises a guide block (131) and a guide groove (132), the guide block (131) is fixedly connected to the outer side of the left end of the objective lens shell (1), the guide groove (132) is formed in the inner side of the shading cover (12), and the guide groove (132) is connected with the guide block (131) in a sliding mode;

the positioning mechanism (14) comprises a spring groove (141), a second telescopic spring (142), a limiting block (143), a limiting hole (144), a fixing block (145), a pressing groove (146), a pressing spring (147), a sliding mechanism (148), a pressing block (149) and a pressing column (1410), the spring groove (141) is formed in the outer side of the objective lens shell (1), the limiting block (143) is fixedly connected to the inner side of the spring groove (141) through the second telescopic spring (142), the limiting hole (144) is formed in the right end side portion of the shading cover (12), the limiting block (143) is in pin joint with the limiting hole (144), the fixing block (145) is fixedly connected to the outer side of the right end of the shading cover (12), the fixing block (145) corresponds to the limiting hole (144), the pressing groove (146) is formed in the fixing block (145), the pressing block (149) is connected to the inner portion of the pressing groove (146) in a sliding mode through the sliding mechanism (148), the upper end of a pressing spring (147) of the pressing groove (146) is fixedly connected to the upper end of the pressing block (149), the lower end of the pressing spring (147) is fixedly connected to the outer side of the shading cover (12), the pressing spring (147) is arranged in the pressing groove (146), the pressing column (1410) penetrates through the pressing spring (147) and is fixedly connected to the lower end of the pressing block (149), and the pressing column (1410) extends into the limiting hole (144) and is movably connected with the limiting block (143);

the sliding mechanism (148) comprises a sliding block (1481) and a sliding groove (1482), the sliding groove (1482) is formed in the pressing groove (146), the sliding block (1481) is fixedly connected to the outer side of the pressing block (149), and the sliding block (1481) is in sliding connection with the sliding groove (1482);

u type groove (17) have been seted up in the outside of shading lid (12), the left side of shading lid (12) outwards opens and is tubaeform.