CN218237314U

CN218237314U - Modular medical treatment operation headlight structure

Info

Publication number: CN218237314U
Application number: CN202222380785.2U
Authority: CN
Inventors: 周思成; 闫斌
Original assignee: Shanghai Foye Optical Technology Co ltd
Current assignee: Shanghai Foye Optical Technology Co ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-01-06
Anticipated expiration: 2032-09-08

Abstract

The utility model discloses a modular medical treatment operation headlight structure, include: main part seat, the luminous piece of LED, plano-convex spherical lens, fresnel lens, the main part seat be the tubulose, main part seat rear end is for sealing, and main part seat front end is the opening, the luminous piece of LED set up the bottom in the main part seat outside, plano-convex spherical lens rigid coupling at the inboard middle part of main part seat, and plano-convex spherical lens's convex surface outwards, fresnel lens rigid coupling in the inboard front portion of main part seat, the axis of the luminous piece of LED, plano-convex spherical lens and fresnel lens is on same straight line. The Fresnel lens is used in the lighting device, so that the weight of a product is reduced, the overall length is reduced, and the production cost is reduced under the condition of providing the same high-quality lighting. The utility model has the advantages of simple structure, convenient use, good use effect, etc.

Description

Modular medical treatment operation headlight structure

Technical Field

The utility model relates to a medical treatment operation auxiliary articles for use technical field specifically is a modular medical treatment operation headlight structure.

Background

The operation head lamp is a lamp worn on the head of a doctor during an operation, is an illuminating tool for liberating hands, has the characteristics of long service life, higher energy efficiency than incandescent lamps and most halogen lamps, safe cold light beam contact, quick luminescence (less than 100 ns), no need of maintenance, no ultraviolet rays and the like, is suitable for surgical operation illumination, diagnosis and treatment of dentistry, ears, nose and throat, and makes up the illumination of parts which are difficult to be illuminated by shadowless lamps when the medical head lamp is used in operations such as thoracic surgery, brain surgery and the like.

The existing medical operation head lamp generally adopts a design scheme of an LED light source and a full glass lens, and comprises two to three glass lenses, and when the medical operation head lamp is used specifically, the defects of heavier product weight, longer integral length and higher production cost exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modular medical treatment operation headlight structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a modular medical procedure headlamp structure comprising: main part seat, the luminous piece of LED, plano-convex spherical lens, fresnel lens, the main part seat be the tubulose, main part seat rear end is for sealing, and main part seat front end is the opening, the luminous piece of LED set up the bottom in the main part seat outside, plano-convex spherical lens rigid coupling at the inboard middle part of main part seat, and plano-convex spherical lens's convex surface outwards, fresnel lens rigid coupling in the inboard front portion of main part seat, the axis of the luminous piece of LED, plano-convex spherical lens and fresnel lens is on same straight line.

Furthermore, the plano-convex spherical lens is made of glass brand H-K9L with Chengdu Guangming, the convex curvature radius of the plano-convex spherical lens is 2.051mm, the center thickness is 1.5mm, and the distance between the plane part of the plano-convex spherical lens and the LED light-emitting piece is 2mm.

Furthermore, the inner end surface of the Fresnel lens is a plane, the outer end surface of the Fresnel lens is a sawtooth surface, the inner end surface faces the plano-convex spherical lens, and the distance between the inner end surface and the convex point of the plano-convex spherical lens is 10.837mm.

Furthermore, the vertex curvature radius of a sawtooth surface of the outer end surface of the Fresnel lens is 7.734mm, the cone coefficient is-0.9599682, the aspheric surface uses an even aspheric surface expression, the quadratic term coefficient is-2.1429066 e-2, the quartic term coefficient is 5.4647743e-4, the sextic term coefficient is-2.3120376 e-5, the octave term coefficient is-5.1413304 e-7, and the decadic term coefficient is 2.8302058e-8.

Compared with the prior art, the beneficial effects of the utility model are that: the combined medical operation head lamp structure of the utility model adopts the LED as the light source, shapes the light source beam through the plano-convex spherical glass lens and the plano-convex aspheric Fresnel lens, forms a uniform and bright illumination light spot, can be worn at the bridge of the nose of a doctor by matching with the design of mechanical parts, and provides a high-quality illumination condition for the doctor in the process of performing surgical operation;

although the refraction accuracy of the Fresnel lens is lower than that of a common lens, the precision requirement is not high because the Fresnel lens is mainly used for illumination, and the Fresnel lens is used here to reduce the weight, the whole length and the production cost of the product under the condition of providing the same high-quality illumination.

Because the influence of the lens on light mainly lies in the curvatures of the front and rear surfaces, and the medium-thickness part has little effect, the Fresnel removes the glass in the middle of the lens, and only the curvatures of the front and rear surfaces are reserved, so that the original refraction effect on light can be kept, and meanwhile, the weight and the cost are greatly reduced. The design utilizes the advantages of the Fresnel lens, improves the use experience of products and reduces the cost on the premise of providing high-quality illumination.

In the design, an LED chip is used as a light source, a plano-convex spherical lens is placed behind the LED chip, and a high-temperature-resistant glass material is required in consideration of the fact that the lens is close to the LED light source in heat generation.

The utility model has the advantages of simple structure, convenient use, good use effect, etc.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the Fresnel lens structure of the present invention;

in the figure: 1-a main body seat; 2-LED light-emitting sheet; 3-plano-convex spherical lens; 4-Fresnel lens.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides a combined medical head lamp structure for operation, comprising: main part seat 1, the luminous piece 2 of LED, plano-convex spherical lens 3, fresnel lens 4, main part seat 1 be the tubulose, 1 rear end of main part seat is for sealing, and 1 front end of main part seat is the opening, the luminous piece 2 of LED set up the bottom in the main part seat 1 outside, 3 rigid couplings of plano-convex spherical lens at 1 inboard middle part of main part seat, and the convex surface of plano-convex spherical lens 3 outwards, fresnel lens 4 rigid coupling in the inboard front portion of main part seat, the axis of the luminous piece 2 of LED, plano-convex spherical lens 3 and fresnel lens 4 is on same straight line.

Further, the plano-convex spherical lens 3 is made of glass brand H-K9L with Chengdu Guangming, the convex curvature radius of the plano-convex spherical lens 3 is 2.051mm, the center thickness is 1.5mm, and the distance between the plane part of the plano-convex spherical lens 3 and the LED light-emitting sheet 2 is 2mm.

Furthermore, the inner end surface of the fresnel lens 4 is a plane, the outer end surface is a sawtooth surface, the inner end surface faces the plano-convex spherical lens 3, and the distance between the convex points of the inner end surface and the plano-convex spherical lens 3 is 10.837mm.

Furthermore, the vertex curvature radius of the sawtooth surface of the outer end surface of the Fresnel lens 4 is 7.734mm, the cone coefficient is-0.9599682, the aspheric surface uses an even aspheric surface expression, the quadratic term coefficient is-2.1429066 e-2, the quartic term coefficient is 5.4647743e-4, the sextic term coefficient is-2.3120376 e-5, the eighth term coefficient is-5.1413304 e-7, and the tenth term coefficient is 2.8302058e-8.

Although 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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A modular medical procedure headlight structure, comprising: main part seat (1), the luminous piece of LED (2), plano-convex spherical lens (3), fresnel lens (4), main part seat (1) be the tubulose, main part seat (1) rear end is for sealing, and main part seat (1) front end is the opening, luminous piece of LED (2) set up the bottom in the main part seat (1) outside, plano-convex spherical lens (3) rigid coupling at the inboard middle part of main part seat (1), and the convex surface of plano-convex spherical lens (3) outwards, fresnel lens (4) rigid coupling in the inboard front portion of main part seat (1), the axis of the luminous piece of LED (2), plano-convex spherical lens (3) and fresnel lens (4) is on same straight line.

2. The combined medical operation headlamp structure as claimed in claim 1, wherein the plano-convex spherical lens (3) is made of glass brand H-K9L, the convex curvature radius of the plano-convex spherical lens (3) is 2.051mm, the center thickness is 1.5mm, and the distance between the plane part of the plano-convex spherical lens (3) and the LED light-emitting sheet (2) is 2mm.

3. The combined medical operation head lamp structure as claimed in claim 1, wherein the fresnel lens (4) has a flat inner end surface and a sawtooth outer end surface, the inner end surface faces the plano-convex spherical lens (3), and the distance between the inner end surface and the convex point of the plano-convex spherical lens (3) is 10.837mm.

4. The combined medical operation headlamp structure as claimed in claim 1, wherein the Fresnel lens (4) has an outer end surface with a sawtooth surface vertex curvature radius of 7.734mm, a cone coefficient of-0.9599682, an aspheric surface using an even aspheric expression, a quadratic coefficient of-2.1429066 e-2, a quartic coefficient of 5.4647743e-4, a sextic coefficient of-2.3120376 e-5, an octave coefficient of-5.1413304 e-7, and a tenth quadratic coefficient of 2.8302058e-8.