CN216118245U

CN216118245U - Corner parallel light source lens cone

Info

Publication number: CN216118245U
Application number: CN202122881090.8U
Authority: CN
Inventors: 汪少东; 魏有海
Original assignee: Suzhou Xinheng High Tech Optoelectronic Technology Co ltd
Current assignee: Suzhou Xinheng High Tech Optoelectronic Technology Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-03-22
Anticipated expiration: 2031-11-23

Abstract

The utility model relates to a corner parallel light source lens barrel, which comprises a lens barrel body, wherein the lens barrel body comprises a corner lens barrel and a parallel lens barrel, a pentagonal prism is arranged in the corner lens barrel, a lamp bead is arranged in the corner lens barrel, the pentagonal prism has two mutually perpendicular sides, the two perpendicular sides are respectively arranged corresponding to the lamp bead and the parallel lens barrel, a first diaphragm is arranged in the corner lens barrel along a light path, a second diaphragm, a lens and a cemented lens are sequentially arranged in the parallel lens barrel along the light path, the lens is a biconcave lens, and the cemented lens comprises at least one plano-convex lens; the light source passes from the lamp pearl and comes back through pentagon prism twice reflection back, becomes a bunch of parallel light source behind lens, cemented lens in proper order, and the parallel light source distance through after the spotlight many times can reach 1000mm, and the facula size change is little, and the parasitic light is few, improves working distance greatly, and pentagon prism reflection is twice in addition, wholly reduces overall dimension, and easy to assemble.

Description

Corner parallel light source lens cone

Technical Field

The utility model relates to the technical field of optical devices, in particular to a rotating angle parallel light source lens barrel.

Background

The parallel light lens refers to a lens which can emit light in parallel after being refracted by a plurality of lenses, has multiple advantages and is commonly used for industrial equipment, but the existing parallel light source has the following defects:

firstly, the size is large, and the installation in a narrow space is not facilitated;

secondly, partial stray light appears in the outermost circle of the parallel light;

thirdly, the parallelism of the light source cannot meet the requirement of higher measurement precision;

fourthly, the working effective distance of the light source is relatively short, and the general working distance is only 300 MM.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lens barrel with a corner parallel light source, which solves the problem that the parallelism of optical glass is difficult to adjust when the optical glass is installed.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a corner parallel light source lens barrel which comprises a lens barrel body, wherein the lens barrel body comprises a corner lens barrel and a parallel lens barrel, a pentagonal prism is arranged in the corner lens barrel, a lamp bead is arranged in the corner lens barrel, the pentagonal prism is provided with two mutually perpendicular sides, the two perpendicular sides are respectively arranged corresponding to the lamp bead and the parallel lens barrel, a first diaphragm is arranged in the corner lens barrel along a light path, a second diaphragm, a lens and a cemented lens are sequentially arranged in the parallel lens barrel along the light path, the lens is a biconcave lens, and the cemented lens comprises at least one plano-convex lens.

Preferably, the lens and the cemented lens are pressed in the parallel lens barrels through fixed pressing rings.

Preferably, the lamp pearl sets up on the lamp stand, first diaphragm also sets up on the lamp stand.

Preferably, the parallel lens barrel comprises a front lens barrel and a rear lens barrel, the front lens barrel and the rear lens barrel are both in a cone structure, and the biconcave lens is located at the joint of the front lens barrel and the rear lens barrel.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a corner parallel light source lens barrel, which comprises a lens barrel body, wherein the lens barrel body comprises a corner lens barrel and a parallel lens barrel, a lamp bead is arranged on the corner lens barrel, a pentagonal prism is arranged between the corner lens barrel and the parallel lens barrel, the pentagonal prism has two mutually perpendicular edges, the two perpendicular edges are respectively arranged corresponding to the lamp bead and the parallel lens barrel, a first diaphragm is arranged in the corner lens barrel along a light path, and a second diaphragm, a lens and a cemented lens are sequentially arranged in the parallel lens barrel along the light path; the light source passes from the lamp pearl and comes back through pentagon prism twice reflection back, becomes a bunch of parallel light source behind lens, cemented lens in proper order, and the parallel light source distance through after the spotlight many times can reach 1000mm, and the facula size change is little, and the parasitic light is few, improves working distance greatly, and pentagon prism reflection is twice in addition, wholly reduces overall dimension, and easy to assemble.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

fig. 2 is a schematic diagram of optical path transfer according to a preferred embodiment of the present invention.

Wherein the reference numerals are as follows:

11. a front barrel; 12. a rear barrel; 13. a second diaphragm; 14. a biconcave lens; 15. a cemented lens;

2. a corner lens barrel; 21. a pentagonal prism; 22. a lamp bead; 23. a lamp socket; 24. a first diaphragm;

3. and fixing the pressing ring.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, the lens barrel includes a lens barrel body, the lens barrel body includes a corner lens barrel 2 and a parallel lens barrel, a lamp holder 23 is arranged on the corner lens barrel 2, the lamp holder 23 is arranged perpendicular to the corner lens barrel 2, a lamp bead 22 and a first diaphragm 24 are arranged on the lamp holder 23, the first diaphragm 24 is arranged along a light path, a pentagonal prism 21 is further arranged in the corner lens barrel 2, a light source of the lamp bead 22 enters the pentagonal prism 21 through the first grating 24, the pentagonal prism 21 includes two perpendicular sides, one side of the two perpendicular sides is arranged corresponding to the lamp bead 22, the other side of the two perpendicular sides is arranged corresponding to an opening of the parallel lens barrel 2, and the reason for selecting such a pentagonal prism 21 is that the light source can be reflected into the parallel lens barrel in the smallest size and reflected into the parallel lens barrel in parallel; the light source is reflected twice in the pentagonal prism 21 and finally enters the parallel lens barrel. The pentagonal prism 21 is arranged to enable the light source to emit light twice, the size of a lens barrel required by the light source is smaller than that of a lens barrel required by primary reflection, and the overall size is reduced.

Second diaphragm 13, lens and cemented lens have set gradually along the light path in the parallel lens cone, and lens are biconcave lens 14, and cemented lens 15 is two planoconvex lenses that glue together, and the light source that has passed through the reflection of pentagon prism 21 is at first through second diaphragm 13, and the biconcave lens 14 is again diverged, then carries out quadratic focus through the planoconvex lens again, makes multichannel light source parallel shooting at last. The parallel lens cone comprises a front lens cone 11 and a rear lens cone 12, the biconcave lens 14 is located at the joint of the front lens cone 11 and the rear lens cone 12, and the front lens cone 11 and the rear lens cone 12 are both of circular truncated cone structures with the diameters being large in the front and small in the rear, so that the assembly of the lenses is facilitated, the propagation of light sources is facilitated, and a plurality of parallel light sources can be formed.

The lens and the cemented lens 15 are pressed in the parallel lens barrel through the fixed pressing ring 3, and the fixed pressing ring 3 enables the connection between the lens and the lens to be tighter.

During the specific use, turn on lamp pearl 22, light source that light pearl 22 was beaten passes first diaphragm 24 and adjusts the back, and the final parallel entering parallel lens cone of twice reflection through pentagonal prism 21 then after second diaphragm 13 adjustment, get into biconcave lens 14 and diverge, focus in carrying out two plano-convex lens at last, and final parallel light source forms.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a corner parallel light source lens cone, its characterized in that, includes the lens cone body, the lens cone body includes corner lens cone and parallel lens cone, be provided with pentagonal prism in the corner lens cone, be provided with the lamp pearl in the corner lens cone, pentagonal prism has two limits of mutually perpendicular, two perpendicular limits correspond lamp pearl and parallel lens cone setting respectively, be provided with first diaphragm along the light path in the corner lens cone, second diaphragm, lens and cemented lens have set gradually along the light path in the parallel lens cone, lens are biconcave lens, cemented lens includes an at least plano-convex lens.

2. The rotating parallel light source barrel according to claim 1, wherein: and the lens and the cemented lens are pressed in the parallel lens barrels through the fixed pressing ring.

3. The rotating parallel light source barrel according to claim 1, wherein: the lamp bead is arranged on the lamp holder, and the first diaphragm is also arranged on the lamp holder.

4. The rotating parallel light source barrel according to claim 1, wherein: the parallel lens barrels comprise a front lens barrel and a rear lens barrel, the front lens barrel and the rear lens barrel are of circular truncated cone structures, and the biconcave lens is located at the joint of the front lens barrel and the rear lens barrel.