CN202281861U

CN202281861U - Lighting device capable of achieving fast replacement of different excitation wavelengths

Info

Publication number: CN202281861U
Application number: CN201120250778XU
Authority: CN
Inventors: 陈木旺
Original assignee: Maike Aodi Industry Group Co Ltd
Current assignee: Maike Aodi Industry Group Co Ltd
Priority date: 2011-07-15
Filing date: 2011-07-15
Publication date: 2012-06-20
Anticipated expiration: 2021-07-15

Abstract

The utility model discloses a lighting device capable of achieving fast replacement of different excitation wavelengths. The lighting device comprises a solid state light emitter, a condenser system, a color filter, an electricity-taking device, an electricity-supplying device and a cavity, wherein the solid state light emitter, the condenser system, the color filter and the electricity-taking device are mounted in a casing to form a lighting module; the casing is provided with an upper hole and a lower hole; the color filter is mounted between the upper hole and the lower hole; the solid state light emitter electrically connected with the electricity-taking device and the condenser system are located on one side of the color filter; the cavity is formed between the objective lenses and the viewing head of a microscope, and is provided with an upper aperture and a lower aperture up and down opposite to the upper aperture, and a hole for the insertion and draw of the lighting module; the upper and the lower apertures are respectively opposite to the upper and the lower holes of the casing; and the electricity-supplying device opposite to the electricity-taking device is mounted in the cavity, so that the electricity-taking can be electrically connected with the electricity-taking device after the lighting device is inserted into the cavity. By adopting the design, the lighting device provided by the utility model is capable of achieving the fast replacement of the different excitation wavelengths.

Description

The lighting device of the different excitation wavelengths of fast changeable

Technical field

The utility model relates to the lighting device of the different excitation wavelengths of a kind of fast changeable.

Background technology

The image of high-contrast receives application widely to fluorescent microscope because of obtaining more; Mainly form by fluorescence excitation source, condenser system, colour filter piece (by exciting color filter, beam split color separation film and stopping that color filter forms) and microscope; Concrete principle is: the light that sends after the energising of fluorescence excitation source through condenser system, excite color filter (can only see through light) to filter less than certain wavelength after; Get into object lens by beam split color separation film (reflection is less than the light of certain wavelength, and transmissive is greater than the light of this wavelength) reflection back, be radiated on the sample at last; Sample excitation goes out fluorescence; Its wavelength greater than the beam split color separation film can transmission light wavelength, this fluorescence directly sees through the beam split color separation film and stops color filter (can only see through the light greater than a certain wavelength), arrives eyepiece or camera head for observation.Select different colour filter pieces for use, can realize that different wavelengths excites.

In order to guarantee that the observer can see fluoroscopic image, require the fluorescence excitation source that stronger brightness can be provided on certain wavelengths, traditional fluorescent microscope mainly is to adopt gases at high pressure lamp such as mercury lamp, Metal halogen lamp as the fluorescence excitation source; These light sources can provide stronger radiation intensity on special wave band, but power high (generally wanting 200W), the life-span short (life-span of import mercury lamp was generally 200 hours); Cost an arm and a leg; Poor stability simultaneously, the heat radiation sample of can burning by force, start needs preheating, shutdown to need to cool off; Even can bring the danger of blast, these unfavorable factors have limited the range of application of fluorescent microscope to a certain extent.

Along with the development of solid state light emitters such as LED, its radiation power can satisfy the requirement in fluorescence excitation source, has begun to be applied in the illumination of fluorescent microscope; Have the following advantages: stability is high, and brightness is adjustable continuously, promptly opens promptly and closes; Low in energy consumption, volume is little, and cost is low; Life-span is long, does not have heat radiation can not damage section, without explosion danger.

Existing employing LED has Primo star iLED (Zeiss), CyScope (Partec) etc. as the product of fluorescence excitation light source.This two LED fluorescent microscope can only provide an excitation wavelength at every turn, as when using other excitation wavelengths instead, need change LED and colour filter piece simultaneously.For Primo star iLED, when changing other excitation wavelengths, need be by the lid of TO LED fluorescent lighting device; Pull down the led module and the colour filter piece of the inside again, change the LED and the colour filter piece of other wavelength then, at last cover lid again; Could use; Speed is slow, and the replacing program is loaded down with trivial details, and LED and the unmatched mistake of colour filter piece take place simultaneously easily.CyScope does not need instrument just can realize the replacing of other excitation wavelengths; The replacing velocity ratio is very fast; But the colour filter piece is the split design; The parts that need to change simultaneously are more, comprise LED, excite color filter, the beam split color separation film, stop color filter etc., occur LED and the color filter mistake that do not match more easily.

The utility model content

The purpose of the utility model is to provide the lighting device of the different excitation wavelengths of a kind of fast changeable; Adopt modular design; Form by lighting module and cavity; Lighting module adopts the plug type design, can move into or shift out cavity apace, and the lighting module of changing different wave length can be realized the quick replacing of different excitation wavelengths.

To achieve these goals, the technical scheme of the utility model is following:

The lighting device of the different excitation wavelengths of fast changeable comprises solid state light emitter, condenser system, colour filter piece, electricity getting device, gives electric installation and cavity; Solid state light emitter, condenser system, colour filter piece and electricity getting device are installed in and constitute lighting module in the housing; Housing has last hole and following hole; The colour filter piece is installed between the last hole and following hole of housing, and solid state light emitter and condenser system are positioned at a side of colour filter piece, and solid state light emitter is electrically connected with electricity getting device; Cavity is formed between microscopical object lens and the viewing head, the plug hole that has relative up and down last light hole and following light hole and supply lighting module to insert or extract, and the last light hole of cavity and following light hole are corresponding with the position in the last hole of housing and following hole respectively; Corresponding electricity getting device is installed in cavity to electric installation, is made lighting device insert behind the cavity electricity getting device and be electrically connected to electric installation.

Above-mentioned solid state light emitter is LED or LD (semiconductor laser).

Above-mentioned colour filter piece is excited color filter, beam split color separation film and is stopped that color filter forms by optional.

Above-mentioned electricity getting device and be two parts of contact-making switch to electric installation, like sheet metal and spring thimble, only both just can contact conducting when the working position.

The lighting module of above-mentioned different wave length refers to the different lighting module of the curve of spectrum of solid state light emitter or colour filter piece.

The utility model when work, lighting module is inserted in the cavity shift-in to the working position, electricity getting device and connecting to electric installation; Solid state light emitter obtains power supply and emits beam; After the condenser system collection, behind the colour filter piece, be radiated on the sample, excite sample to produce fluorescence; After the object lens collection, directly pass the colour filter piece and get into viewing head.When needing to change the lighting module of different wave length, only need from cavity, to extract current lighting module, insert then and will use the lighting module of wavelength to get final product.

After adopting such scheme, the utility model is compared with the fluorescent lighting device of prior art, has the following advantages:

One, need can not change the lighting module of different wave length fast by instrument;

Solid state light emitter and the unmatched mistake of colour filter piece can not appear when two, changing lighting module.

Description of drawings

Fig. 1 a is quick-replaceable principle schematic that the utility model is realized different excitation wavelengths with Fig. 1 b;

Fig. 2 a and Fig. 2 b are the lighting module synoptic diagram of the utility model;

Fig. 3 a, Fig. 3 b and Fig. 3 c are the cavity synoptic diagram of the utility model.

Label declaration

Lighting module 1 solid state light emitter 11

Condenser system 12 colour filter pieces 13

Electricity getting device 14 housings 15

101 times holes 102, last hole

Cavity 2 is given electric installation 21

201 times light holes 202 of last light hole

Excite 131 45 ° of beam split color separation films 132 of color filter

Stop color filter 133 plug holes 203

Viewing head 3 object lens 4.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

Shown in Fig. 1 a and Fig. 1 b, be a kind of embodiment of the utility model, comprise solid state light emitter 11, condenser system 12, colour filter piece 13, electricity getting device 14, give electric installation 21 and cavity 2.

Shown in Fig. 2 a and Fig. 2 b, solid state light emitter 11, condenser system 12, colour filter piece 13 and electricity getting device 14 are installed in and constitute lighting module 1 in the housing 15.Housing 1 has last hole 101 and following hole 102.Colour filter piece 13 is installed between the last hole 101 and following hole 102 of housing 15.Solid state light emitter 11 and condenser system 12 are positioned at a side of colour filter piece 13.Solid state light emitter 11 is electrically connected with electricity getting device 14 (two sheet metals).Wherein, solid state light emitter 11 can be shown in present embodiment LED, perhaps LD.Colour filter piece 13 is by exciting 131,45 ° of beam split color separation films 132 of color filter and stopping that color filter 133 forms, stop color filter 133 be positioned at hole 101 under.Lighting module 1 has multiple, different lighting module 1, and the spectral characteristic of its solid state light emitter 11 or colour filter piece 13 is different, changes the replacing that different lighting modules 1 can be realized different wave length.

Shown in Fig. 3 a, Fig. 3 b and Fig. 3 c; Cavity 2 is formed between microscopical object lens 4 and the viewing head 3; The plug hole 203 that has relative up and down last light hole 201 and following light hole 202 and supply lighting module 1 to insert or extract, the last light hole 201 of cavity 1 and following light hole 202 are corresponding with the position in the last hole 101 of housing 15 and following hole 102 respectively.Corresponding electricity getting device 14 is installed in cavity 2 for electric installation 21 (constant current source adopts spring thimble), is made lighting device 1 insert cavity 2 back electricity getting devices 14 and be electrically connected with giving electric installation 21.

The utility model when work, with lighting module 1 insert in the cavity 2 be shift-in to the working position, electricity getting device 14 is connected with giving electric installation 21; Solid state light emitter 11 emits beam with giving electric installation 21 connection acquisition power supplys, after assembling through condenser system 12, passes and excites color filter 131; Get into object lens 3 by 45 ° of beam split color separation films, 132 reflection backs, be radiated at last on the sample 4, excite sample 4 to produce fluorescence; Again after object lens 3 are collected, directly pass and stop color filter 133, get into and observe head 5.

When changing different excitation wavelength, only need from cavity 2, extract current lighting module 1, insert then and will use the lighting module 1 of wavelength to get final product.

Owing to extract or insert lighting module 1, need can not realize that excitation wavelength is changed fast by other work.

Claims

1. the lighting device of the different excitation wavelengths of fast changeable is characterized in that: comprise solid state light emitter, condenser system, colour filter piece, electricity getting device, give electric installation and cavity; Solid state light emitter, condenser system, colour filter piece and electricity getting device are installed in and constitute lighting module in the housing; Housing has last hole and following hole; The colour filter piece is installed between the last hole and following hole of housing, and solid state light emitter and condenser system are positioned at a side of colour filter piece, and solid state light emitter is electrically connected with electricity getting device; Cavity is formed between microscopical object lens and the viewing head, the plug hole that has relative up and down last light hole and following light hole and supply lighting module to insert or extract, and the last light hole of cavity and following light hole are corresponding with the position in the last hole of housing and following hole respectively; Corresponding electricity getting device is installed in cavity to electric installation, is made lighting device insert behind the cavity electricity getting device and be electrically connected to electric installation.

2. the lighting device of the different excitation wavelengths of fast changeable as claimed in claim 1, it is characterized in that: solid state light emitter is LED or LD.

3. the lighting device of the different excitation wavelengths of fast changeable as claimed in claim 1 is characterized in that: the colour filter piece is by the optional color filter, 45 that excites ^oThe beam split color separation film with stop that color filter forms.

4. the lighting device of the different excitation wavelengths of fast changeable as claimed in claim 1 is characterized in that: electricity getting device and be two parts of contact-making switch to electric installation.