CN108954033A - A kind of lens type LED bulb - Google Patents

A kind of lens type LED bulb Download PDF

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Publication number
CN108954033A
CN108954033A CN201810053049.1A CN201810053049A CN108954033A CN 108954033 A CN108954033 A CN 108954033A CN 201810053049 A CN201810053049 A CN 201810053049A CN 108954033 A CN108954033 A CN 108954033A
Authority
CN
China
Prior art keywords
light
led
shell
lamp holder
guiding shade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810053049.1A
Other languages
Chinese (zh)
Inventor
潘煜彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201810053049.1A priority Critical patent/CN108954033A/en
Publication of CN108954033A publication Critical patent/CN108954033A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/237—Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention discloses a kind of lens type LED bulbs, including for being fixed on lamp holder and carrying out to take the screw socket of electricity, and the lamp holder connection base on screw socket is set, and it is arranged in lamp holder connection base and is used to provide the driving power of stable electric current and voltage, shell is provided on the lamp holder connection base, the shell is fixedly connected with lamp holder connection base, the LED illuminating module for serving as light source is provided on the shell, the light-guiding shade for spreading LED illuminating module light is arranged in the LED illuminating module, the light-guiding shade is arranged in the tubular consistent with LED illuminating module, and the surface of light-guiding shade is provided with more than one convex lens, the convex lens is in longitudinal surface for being uniformly looped around light-guiding shade, it is additionally provided between the convex lens and convex lens and engraves hole for heat dissipation, the light-guiding shade and shell It is fixedly connected；The lens type LED bulb has the advantages that structurally reasonable, luminous efficiency is high, good heat dissipation effect.

Description

A kind of lens type LED bulb
Technical field
The present invention relates to LED illumination lamp technical fields, and in particular to a kind of lens type LED bulb.
Background technique
LED illumination lamp is the lighting source of new generation after fluorescent lamp (i.e. common energy-saving lamp).LED, that is, semiconductor light emitting Diode, is a kind of solid state semiconductor devices, it can directly be converted electricity to light, using solid semiconductor chip as Luminescent material, one end of chip are attached on a bracket, and one end is cathode, and the other end connects the anode of power supply, makes entire chip It is encapsulated by epoxy resin.Semiconductor chip consists of two parts, and a part is P-type semiconductor, and hole accounts for master inside it Status is led, the other end is N-type semiconductor, is mainly electronics in this side.But when both semiconductors connect, they it Between just formed a P-N junction.When electric current acts on this chip by conducting wire, electronics will be pushed to the area P, in the area P In electronics with hole-recombination, energy then will be issued in the form of photon, here it is LED shine principle.LED bulb is to use High brightness white light-emitting diode has that light efficiency height, little power consumption, service life be long, easy to control, non-maintaining, safety collar as light emitting source The advantages of guarantor, therefore LED bulb corrigendum more and more replaces traditional light bulb；But existing LED bulb, especially big function The LED bulb of rate usually causes heat dissipation effect undesirable due to the package of bulb shell, and then leads to LED bulb light decay mistake Greatly, reduce Acceptable life；Although next existing LED bulb may be implemented 360 degree and illuminate, but the diffusivity of light It is smaller, it is unfavorable for improving the luminous efficiency of LED bulb.
Summary of the invention
In view of this, it is an object of the present invention to provide it is a kind of it is structurally reasonable, luminous efficiency is high, the lens type of good heat dissipation effect LED bulb.
In order to solve the above-mentioned technical problem, the technical scheme is that
A kind of lens type LED bulb, including for being fixed on lamp holder and carrying out that the screw socket of electricity, and setting is taken to exist Lamp holder connection base on screw socket, and be arranged in lamp holder connection base and be used to provide the driving of stable electric current and voltage Power supply, the screw socket are fixedly connected with lamp holder connection base, and the driving power is fixedly connected with lamp holder connection base, the lamp It is provided with shell on head attachment base, the shell is fixedly connected with lamp holder connection base, is provided on the shell and is served as light source LED illuminating module, the light-guiding shade for spreading LED illuminating module light, the leaded light are arranged in the LED illuminating module Cover is arranged in the tubular consistent with LED illuminating module, and the surface of light-guiding shade is provided with more than one convex lens, the convex lens In longitudinal surface for being uniformly looped around light-guiding shade, the hole of engraving for heat dissipation is additionally provided between the convex lens and convex lens, it is described to lead Light shield is fixedly connected with the casing.
Preferably, the LED illuminating module includes flexible base board and LED lamp bead, the flexible base board surround and fixes On the outer surface of shell, the LED lamp bead is provided with more than one, and LED lamp bead is indulged in the appearance of flexible base board in several Column setting, and LED lamp bead is uniformly looped around the outer surface of flexible base board, facilitates the illumination for making light bulb realize 360 degree.
Preferably, the light-emitting surface of the LED lamp bead is corresponded to each other with the lens on light-guiding shade, facilitate convex lens to LED The light of lamp bead is diffused, and improves the luminous efficiency of LED bulb.
Preferably, the light-guiding shade is transparent polycarbonate light-guiding shade, intensity is high and heat resistance is good, helps to mention The durability of high LED bulb.
Preferably, the shell is hollow Al-alloy casing, heat is distributed when facilitating LED lamp bead work.
Preferably, the flexible base board is polyimide flex substrate, facilitates LED illuminating module and be fixed on tubular On shell.
The technology of the present invention effect major embodiment is in the following areas: due to being provided with the LED illuminating module with flexible base board, And the surface of LED illuminating module is uniformly surrounded with LED lamp bead, therefore 360 degree of LED bulb of illumination may be implemented, to improve The illuminating effect of LED bulb；Due to being provided with tubular light-guiding shade, and the convex lens on light-guiding shade and LED illuminating module phase Mutually cooperation, the light of LED illuminating module is diffused, to improve the range of exposures of LED bulb, is also improved simultaneously LED bulb luminous efficiency；Due to being in be vertically arranged with several to engrave hole, the heat that LED lamp bead generates when working on light shield outer surface Amount can be distributed by engraving hole, while Al-alloy casing also can participate in distributing for LED lamp bead heat with hole mutual cooperation is engraved, Therefore the heat dissipation performance of LED bulb is improved, it is bad because radiating to avoid LED bulb, causes that light decay is too fast and shortening light bulb makes With the service life, therefore improve the applicability of LED bulb.
Detailed description of the invention
Fig. 1 is a kind of structural exploded view of lens type LED bulb of the present invention；
Specific embodiment
A specific embodiment of the invention is described in further detail below in conjunction with attached drawing, so that technical solution of the present invention is easier to In understanding and grasp.
In the present embodiment, it is to be understood that term " centre ", "upper", "lower", " top ", " right side ", " left end ", " top ", " back side ", " middle part ", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, only It is of the invention for ease of description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, the connection or fixed form between component if not otherwise specified in this embodiment, connection or solid Determine mode can for fixed by bolt commonly used in the prior art or pin fix or pin shaft connection etc. modes, therefore, this It is no longer described in detail in embodiment.
As shown in Fig. 1, a kind of lens type LED bulb, including for being fixed on lamp holder and carrying out to take the screw lamp of electricity First 1, and on screw socket 1 lamp holder connection base 2 is set, and is arranged in lamp holder connection base 1 and is used to provide stabilization Electric current and voltage driving power 3, the screw socket 1 fixed with lamp holder connection base 2 by threads, the driving electricity Source 3 is bolted with lamp holder connection base 2, and 2 are provided with shell 4 on the lamp holder connection base, and the shell 4 is connect with lamp cap Seat 2 is fixed by threads, and the LED illuminating module 5 for serving as light source, the LED illuminating module are provided on the shell 4 The light-guiding shade 6 for spreading 5 light of LED illuminating module is arranged on 5, the light-guiding shade 6 is in consistent with LED illuminating module 5 Tubular setting, and the surface of light-guiding shade 6 is provided with more than one convex lens 61, and the convex lens 61 is led in longitudinal be uniformly looped around The surface of light shield 6 is additionally provided between the convex lens 61 and convex lens 61 and engraves hole 62, the light-guiding shade 6 and shell 4 for heat dissipation It is fixed by threads.The LED illuminating module 5 includes flexible base board 51 and LED lamp bead 52, and the flexible base board 51 is surround And be fixed on by gluing on the outer surface of shell 4, the LED lamp bead 52 is provided with more than one, and LED lamp bead 52 is in flexibility The appearance of substrate 51 is arranged in several files, and LED lamp bead 52 is uniformly looped around the outer surface of flexible base board 51, and LED light Pearl 52, by being welded and fixed, facilitates the illumination for making light bulb realize 360 degree with flexible base board 51.The LED lamp bead 52 shines Face is corresponded to each other with the lens 61 on light-guiding shade 6, is facilitated convex lens 61 and is diffused to the light of LED lamp bead 52, passes through convex lens The lighting angle of LED lamp bead 52 can be diffused into 160 degree by 61, improve the luminous efficiency of LED bulb.The light-guiding shade 6 is transparent Polycarbonate light-guiding shade, intensity is high and heat resistance is good, helps to improve the durability of LED bulb.The shell 4 is hollow Al-alloy casing, facilitate heat when LED lamp bead 52 works and distribute.The flexible base board 51 is polyimide flex base Plate facilitates LED illuminating module 5 and is fixed on the shell 4 of tubular.
The technology of the present invention effect major embodiment is in the following areas: due to being provided with the LED illuminating module with flexible base board, And the surface of LED illuminating module is uniformly surrounded with LED lamp bead, therefore 360 degree of LED bulb of illumination may be implemented, to improve The illuminating effect of LED bulb；Due to being provided with tubular light-guiding shade, and the convex lens on light-guiding shade and LED illuminating module phase Mutually cooperation, the light of LED illuminating module is diffused, to improve the range of exposures of LED bulb, is also improved simultaneously LED bulb luminous efficiency；Due to being in be vertically arranged with several to engrave hole, the heat that LED lamp bead generates when working on light shield outer surface Amount can be distributed by engraving hole, while Al-alloy casing also can participate in distributing for LED lamp bead heat with hole mutual cooperation is engraved, Therefore the heat dissipation performance of LED bulb is improved, it is bad because radiating to avoid LED bulb, causes that light decay is too fast and shortening light bulb makes With the service life, therefore improve the applicability of LED bulb.
Certainly, above is representative instance of the invention, and in addition to this, the present invention can also have other a variety of specific implementations Mode, all technical solutions formed using equivalent substitution or equivalent transformation, is all fallen within the scope of protection of present invention.

Claims (6)

1. a kind of lens type LED bulb, including for being fixed on lamp holder and carrying out to take the screw socket of electricity, and setting in spiral shell Lamp holder connection base on mouth lamp cap, and the driving electricity for providing stable electric current and voltage being arranged in lamp holder connection base Source, the screw socket are fixedly connected with lamp holder connection base, and the driving power is fixedly connected with lamp holder connection base, and feature exists In: shell is provided on the lamp holder connection base, the shell is fixedly connected with lamp holder connection base, is arranged on the shell useful Make in the LED illuminating module of light source, the light-guiding shade for spreading LED illuminating module light be arranged in the LED illuminating module, The light-guiding shade is arranged in the tubular consistent with LED illuminating module, and the surface of light-guiding shade is provided with more than one convex lens, The convex lens is additionally provided with engraving for heat dissipation in longitudinal surface for being uniformly looped around light-guiding shade between the convex lens and convex lens Hole, the light-guiding shade are fixedly connected with the casing.
2. a kind of lens type LED bulb according to claim 1, it is characterised in that: the LED illuminating module includes flexibility Substrate and LED lamp bead, the flexible base board are surround and are fixed on the outer surface of shell, the LED lamp bead be provided with one with On, and LED lamp bead is arranged in the appearance of flexible base board in several files, and LED lamp bead is uniformly looped around the outer of flexible base board Surface.
3. a kind of lens type LED bulb according to claim 1, it is characterised in that: the light-emitting surface of the LED lamp bead with lead Lens on light shield correspond to each other.
4. a kind of lens type LED bulb according to claim 1, it is characterised in that: the light-guiding shade is transparent poly- carbon Acid esters light-guiding shade.
5. a kind of lens type LED bulb according to claim 1, it is characterised in that: the shell is hollow aluminium alloy Shell.
6. a kind of lens type LED bulb according to claim 1, it is characterised in that: the flexible base board is polyimides Flexible base board.
CN201810053049.1A 2018-01-19 2018-01-19 A kind of lens type LED bulb Withdrawn CN108954033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810053049.1A CN108954033A (en) 2018-01-19 2018-01-19 A kind of lens type LED bulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810053049.1A CN108954033A (en) 2018-01-19 2018-01-19 A kind of lens type LED bulb

Publications (1)

Publication Number Publication Date
CN108954033A true CN108954033A (en) 2018-12-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810053049.1A Withdrawn CN108954033A (en) 2018-01-19 2018-01-19 A kind of lens type LED bulb

Country Status (1)

Country Link
CN (1) CN108954033A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112386810A (en) * 2021-01-19 2021-02-23 武汉亚格光电技术股份有限公司 Semiconductor narrow spectrum luminous array, cooling type photodynamic therapeutic head for intracavity therapy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112386810A (en) * 2021-01-19 2021-02-23 武汉亚格光电技术股份有限公司 Semiconductor narrow spectrum luminous array, cooling type photodynamic therapeutic head for intracavity therapy

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Application publication date: 20181207