CN106842776B

CN106842776B - Diameter-variable light beam tube

Info

Publication number: CN106842776B
Application number: CN201710215760.8A
Authority: CN
Inventors: 吴卫军
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-04
Filing date: 2017-04-04
Publication date: 2022-05-13
Anticipated expiration: 2037-04-04
Also published as: CN106842776A

Abstract

The invention relates to a variable-diameter beam light tube, which comprises an outer tube and is characterized in that: be equipped with stairstepping axial direction through-hole in the urceolus, stairstepping axial direction through-hole inserts stairstepping pivot and leaded light spare by big bore diameter end in proper order, the minor axis diameter end of stairstepping pivot is held by stairstepping axial direction through-hole's minor axis and is stretched out, the stairstepping pivot supports together with stairstepping axial direction through-hole's ladder terminal surface, stairstepping axial direction through-hole is clearance fit with stairstepping pivot, leaded light spare and stairstepping axial direction through-hole are interference fit, be equipped with the axial leaded light hole with the axial lead coincidence of urceolus on the leaded light spare, be equipped with the axial beam unthreaded hole in a plurality of different apertures in the stairstepping pivot, each axial beam unthreaded hole is located same periphery with the axial leaded light hole's axial lead. The device has the advantages of reasonable structural design, convenient and flexible use, good light distribution effect and wide application range, can assist in shooting black background pictures of small benthos with the size of less than 2mm, and has low production and use cost.

Description

Diameter-variable light beam tube

Technical Field

The invention relates to a beam light barrel for underwater photographing, in particular to a variable-diameter beam light barrel.

Background

What is a light beam barrel is a device for converting light rays emitted by a flashlight or a light supplement lamp into ultra-small light spots, is commonly used for underwater photographing, only increases the overall or local brightness of a photographed object, and is matched with the adjustment of exposure of a camera to photograph a picture or video with a black background. The underwater microspur shooting is carried out, ultra-small organisms as small as 2mm and 3 mm are shot, a black background picture is expected by each photographer, only the shot micro organisms are exposed, the disordered environment around the organisms becomes black, even in the daytime underwater environment, through the adjustment of functions such as camera exposure and the like, and the light focusing and the light spot reduction of the irradiation target organisms, the illumination brightness of the shot objects is far higher than that of the surrounding environment, the exposure of the camera is reduced, and then a picture with a black background is obtained. The black background picture is monopolized by expensive single-reflex underwater cameras of hundreds of thousands of RMB, and few believe that card cameras of thousands of RMB can also shoot the black background picture.

At present in the submarine shooting field of dive, a beam of light section of thick bamboo is in the state of the fixed bore of single section of thick bamboo, that is to say with the light that flashlight or shooting light filling lamp jetted out, changes the light spot of fixed bore into to beam of light section of thick bamboo bore because the restriction of machining foundry goods technique can't accomplish below the 3 millimeters diameter, then it has following defect: 1. the aperture of the beam-forming barrel is fixed, so that the diversity of the volume of underwater organisms cannot be adapted; 2. because of the technical process limitation of mechanical casting, beam light holes with the diameter less than 3 mm cannot be manufactured, so that benthos with the diameter less than 3 mm cannot be independently lightened, the surrounding area of a shot object can be lightened, and a black background picture of the independently lightened object cannot be shot in the daytime environment, particularly for shooting ultra-small organisms; 3. at present, the light bundling barrel is almost designed for a flashlight or a light supplementing lamp of a factory by a manufacturer of a diving flashlight or a diving light supplementing lamp, a user needs to buy the diving flashlight or the light supplementing lamp with high cost firstly, the cost of the diving light supplementing lamp is less than that of two thousand yuan RMB, and then the light bundling barrel is bought, so that a plurality of diving enthusiasts can be prohibited.

Disclosure of Invention

The invention aims to provide the diameter-variable beam light tube for reducing the seabed microspur shooting threshold, which overcomes the defects, has reasonable structural design, convenient and flexible use, good light distribution effect and wide application range, can assist in shooting black background pictures of small benthos with the size of less than 2mm, and has low production and use cost.

The technical scheme of the invention is as follows:

the utility model provides a reducing beam tube, includes the urceolus, its characterized in that: be equipped with stairstepping axial direction through-hole in the urceolus, stairstepping axial direction through-hole inserts stairstepping pivot and leaded light spare by big aperture end in proper order, the small aperture end of stairstepping pivot is held by stairstepping axial direction through-hole's small aperture and is stretched out, the stairstepping pivot supports with stairstepping axial direction through-hole's ladder terminal surface and leans on together, stairstepping axial direction through-hole is clearance fit with the stairstepping pivot, leaded light spare and stairstepping axial direction through-hole are interference fit, be equipped with the axial leaded light hole with the axial lead coincidence of urceolus on the leaded light spare, the axial beam unthreaded hole that is equipped with a plurality of different apertures in the stairstepping pivot, each axial beam unthreaded hole is located same periphery with the axial leaded light hole's axial lead.

In the diameter-variable light beam tube, the position of the stepped axial through hole of the outer tube, which corresponds to the stepped rotating shaft, is provided with the limiting structure so as to circumferentially position the stepped rotating shaft.

In the diameter-variable light beam barrel, the outer barrel is provided with the external thread at one end provided with the light guide piece, so that the outer barrel is in threaded connection with the light-gathering flashlight.

In the diameter-variable beam tube, the aperture of the axial beam hole is greater than or equal to 0.5 mm.

The beneficial effects of the invention are:

1. axial beam unthreaded hole with different apertures, through rotating the stairstepping pivot, make each axial beam unthreaded hole respectively corresponding with the axial leaded light hole of leaded light spare, realize shining the light beam effect of different bores, that is to say, in the actual seabed is shood, can be according to the size of target toy, rotate the stairstepping pivot, select suitable axial beam unthreaded hole, the light that makes spotlight flashlight jet out shines on the target object through this device, form facula not of uniform size, so that accurately shoot the target object with the camera, realize also can shoot the effect of black background daytime, and it is nimble convenient to use.

2. Many benthos are tiny to 2mm, 1mm, even smaller, and the minimum design among a plurality of beam holes of this product can reach 0.5mm, so, this product can shoot the black background photo of the tiny benthos of little below 2mm with adjusting the camera setting cooperation, and the cloth light is effectual, and application scope is wide.

3. The dive light filling lamp or the dive flashlight producer in the existing market produced a beam of light section of thick bamboo, almost all be only on the dive light filling lamp of the appointed model of installation this factory, the price is very expensive, and this product can be equipped with low-price dive flashlight for the whole set of product price of dive flashlight and beam of light section of thick bamboo is below the thousand yuan, that is to say with very cheap beam of light section of thick bamboo equipment, also can shoot good microspur biological photo, production and use cost are low.

4. This product will restraint light hole direct design in the pivot, the benefit of design like this no longer needs additional pivot, can realize a beam barrel and rotate, has reduced the complexity of accessory, has reduced the volume of product, has reduced manufacturing cost.

Drawings

FIG. 1 is an external structural view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a schematic view of a light guide according to the present invention;

FIG. 4 is a schematic structural view of a stepped shaft according to the present invention;

fig. 5 is a schematic structural view of the outer tub of the present invention.

In the figure: 1. the outer barrel, 2, the step-shaped rotating shaft, 3, the axial beam hole, 4, the light guide piece and 5, the axial light hole.

Detailed description of the invention

In order to more clearly describe the present invention, the present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1-5, this reducing beam light tube includes urceolus 1, be equipped with stairstepping axial through hole in the urceolus 1, stairstepping axial through hole inserts stairstepping pivot 2 and leaded light spare 4 by big footpath end in proper order, stairstepping pivot 2's minor axis footpath end stretches out by stairstepping axial through hole's minor axis footpath end, stairstepping pivot 2 supports together with stairstepping axial through hole's ladder terminal surface, stairstepping axial through hole and stairstepping pivot 2 are clearance fit, leaded light spare 4 is interference fit with stairstepping axial through hole, be equipped with the axial leaded light hole 5 with the axial lead coincidence of urceolus 1 on the leaded light spare 4, be equipped with the axial beam light hole 3 of a plurality of different apertures on the stairstepping pivot 2, each axial beam light hole 3 is located same periphery with the axial leaded light hole 5's axial lead.

And a limiting structure is arranged at the position, corresponding to the stepped rotating shaft 2, of the stepped axial through hole of the outer barrel 1 so as to circumferentially position the stepped rotating shaft 2. And one end of the outer barrel 1, which is provided with the light guide part 4, is provided with an external thread so as to be conveniently connected with the light-gathering flashlight through the thread. The aperture of the axial beam unthreaded hole 3 is greater than or equal to 0.5mm, in the embodiment, the number of the axial beam unthreaded holes 3 is four, and the aperture is 9mm, 6mm, 4mm and 2mm respectively. In addition, the length of the stepped rotating shaft 2 can be adjusted according to the requirement.

When assembling, firstly the stepped rotating shaft 2 is inserted into the outer cylinder 1, the stepped rotating shaft 2 can smoothly rotate in the outer cylinder 1, and then the light guide member 4 is tightly installed in the outer cylinder 1. The product after the equipment utilizes threaded connection in spotlight flashlight front end, flashlight light gets into in the axial leaded light hole 5 of leaded light spare 4 at first, rotate stairstepping pivot 2, make the certain axial beam unthreaded hole 3 that the axle goes out to leaded light hole 5 can pass through stairstepping pivot 2 from the axle, shine on the target object, form the super bright facula, when the actual dive was shot, can be according to seabed target animal's size, rotate stairstepping pivot 2, select the beam unthreaded hole of different bores, so that shoot the seabed super small animal photo of black background daytime.

The embodiments of the present invention have been described in detail, but the description is only for the purpose of describing the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the invention are also within the scope of the present patent.

Claims

1. The utility model provides a reducing beam tube, includes the urceolus, its characterized in that: be equipped with stairstepping axial direction through-hole in the urceolus, stairstepping axial direction through-hole inserts stairstepping pivot and leaded light spare by big aperture end in proper order, the small aperture end of stairstepping pivot is held by stairstepping axial direction through-hole's small aperture and is stretched out, the stairstepping pivot supports with stairstepping axial direction through-hole's ladder terminal surface and leans on together, stairstepping axial direction through-hole is clearance fit with the stairstepping pivot, leaded light spare and stairstepping axial direction through-hole are interference fit, be equipped with the axial leaded light hole with the axial lead coincidence of urceolus on the leaded light spare, the axial beam unthreaded hole that is equipped with a plurality of different apertures in the stairstepping pivot, each axial beam unthreaded hole is located same periphery with the axial leaded light hole's axial lead.

2. The variable diameter beam splitter cylinder of claim 1, wherein: and the stepped axial through hole of the outer barrel is provided with a limiting structure at a position corresponding to the stepped rotating shaft.

3. The variable diameter beam tube of claim 1, wherein: and one end of the outer barrel, provided with the light guide part, is provided with an external thread so as to be in threaded connection with the light-gathering flashlight.

4. The variable diameter beam splitter cylinder of claim 1, wherein: the aperture of the axial beam light hole is larger than or equal to 0.5 mm.