CN2775698Y

CN2775698Y - Low cost stereomicroscope

Info

Publication number: CN2775698Y
Application number: CN 200420013060
Authority: CN
Inventors: 王媛; 廖博
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-19
Filing date: 2004-12-19
Publication date: 2006-04-26
Anticipated expiration: 2014-12-19

Abstract

The utility model relates to the improvement of an ordinary optical microscope. The utility model is characterized in that an optical bench is additionally arranged on an objective table of an ordinary optical microscope. A collecting lens and a light source lamp are arranged on the optical bench. Under a high power objective, a slide with a cylindrical surface or a slide with an inclined surface are changed to use. Light rays ejected by the light source lamp are refracted by the collecting lens, and are concentrated on an observed sample; after refracted by the surface of the sample, the light rays enter a light path system to amplify and form an image. The microscope uses an ordinary optical tool to substitute a valuable beaming light source of the valuable stereomicroscope, has the advantages of low cost and convenient use, and has double purposes of a transmitted light microscope and a reflected light microscope.

Description

A kind of low-cost stereomicroscope

(1) technical field:

The utility model relates to the improvement of ordinary optical microscope.

(2) background technology:

Ordinary optical microscope can be divided into transmitted light microscope and reflected light microscope according to light in the light path situation of observing on the sample.The transmitted light microscopic structure is simple relatively, is worth one in the low only hundreds of units of person, generally uses in medical treatment, health and biological religion scientific research.Each large, medium and small laboratory can both fully dispose.The transmitted light microscope is mainly used in speck inner structure and the composition situation of observing, and observes for the surface condition of opaque speck, will use reflected light microscope, i.e. stereomicroscope.Stereomicroscope is because the configuration of various high power objective camera lenses and reflection source makes its complex structure, and volume is big, involves great expense.For example Japan OLYMPUS stereomicroscope price of producing reaches one in tens thousand of units, general in, all unable configuration of primary school even some laboratories in colleges and universities.

The purpose of this utility model is the microscope that common transmitted light microscope is repacked into transmission and stereoscopic dual-purpose, and its manufacturing cost is almost the same cheap with common transmitted light microscope, can be reduced to an only hundreds of unit.

(3) utility model content:

The utility model is realized by the following method:

Make optical bench 1 with the stainless steel substrates of 1.5 millimeters thick, the optical bench front end has axis hole 2, and the front end of microscope stage 19 also has the axis hole 18 of identical bore apart from the place ahead, center 3 centimeters of light hole 20, in the axis hole 18 screw thread is arranged.There is the block head rotating shaft 3 upper ends, and there is screw thread the lower end.Rotating shaft 3 is passed in the screw threads that screw in after the axis hole 2 in the axis holes 18, fixes with objective table and optical bench is connected with objective table, and optical bench is swayed on the loading table top.Screw rotating shaft, fixedly the position of optical bench.The condenser base 4 that can move forward and backward along optical bench is housed on the optical bench.Positioning screw 5 is arranged on the condenser base, be used to regulate and the fixing position of condenser base.Condenser carrier 6 relies on Luo bar 7 to be contained on the condenser base, and can rotate around Luo bar 7, in order to regulate radiation direction.Collector lens 8 relies on Luo bars 9 to be contained on the condenser carrier, and can around about the axis that is linked to be of two Luo bars 9 rotate, in order to regulate radiation direction.Be equipped with at the optical bench rear portion can have screw rod 11, in order to the position of adjusting and fixed light source base along the light source base 10 of slip before and after the optical bench on the light source base.Light source shelf 12 relies on Luo bar 13 to be contained on the light source base, and can rotate around Luo bar 13, in order to regulate radiation direction.Optically focused lampshade 14 be contained on the light source shelf 12 by Luo bar 15 and can around about the axis that is linked to be of two Luo bars 15 rotate, in order to regulate radiation direction.Can the change the outfit electric light source lamp 16 of 15W-60W of focus place in the optically focused lampshade, the optical bench rear end is a power switch box 17.The light that illuminator penetrates, part direct projection are to collector lens, and part reflexes to collector lens through the optically focused lampshade, to observed sample, are entered microscopical object lens imaging by lens refraction post-concentration after the sample surfaces reflection.

The high power objective focal length of ordinary optical microscope is very little, only has several millimeters, when doing the stereoscopic microexamination of high power.If use the plane micro slide, incident ray is difficult to enter the small space between object lens and the micro slide.At this moment can use the face of cylinder microslide 21 of diameter 6mm or the inclined-plane microslide 22 that slope angle is 30 °.Can enlarge the entry range of incident ray like this, reflection ray intensity is increased, the brightness of picture is increased.For the fixing position of microslide, cylindrical microslide 21 can be put into the cylinder shape groove 24 of objective box 23.If use inclined-plane microslide 22 instead, the inclined-plane microslide can be put into the objective box of 30 ° of slope angle skewed slots 25.

Good effect of the present utility model is:

1, the utility model is only to install auxiliary accessories additional on common transmitted light microscope, it can be repacked into both to do the stereomicroscope use, can make the transmitted light microscope again and use.

2, simple in structure, reliable in function, manufacturing cost increases slightly than ordinary optical microscope.Cost is low, price is low, can make configuration and the usable range of this stereomicroscope in teaching, scientific research, production all be easy to enlarge.

(4) description of drawings:

Be described further below by accompanying drawing:

Accompanying drawing 1 is the formation key diagram of this low-cost stereomicroscope.Respectively the amplification key diagram of cylindrical microslide, inclined-plane microslide and corresponding objective box in left and right two frames.Cylindrical microslide useable glass pipe is cut out to cut and is formed, and the inclined-plane microslide can be cut out to cut and form with the transmitted light microslide.

Accompanying drawing 2 is optical benchs, collector lens, accessories such as optically focused lampshade structure and assembly drawing.The optical bench location of can swaying.Collector lens, the optically focused lampshade can rotate around vertical pivot and transverse axis along optical bench running fix, and its purpose all is to make light focus on the observation sample surface suitably in order to reach, and becomes clear image.Here it is forms the bundling light source that low-cost light source substitutes the costliness of stereomicroscopes such as olympus with the normal optical tool.

Accompanying drawing 3 is imaging optical path synoptic diagram that light enters object lens under the high power objective after the reflection of the sample on the cylindrical micro slide.For the ease of signal, cylindrical microslide among the figure, the inclined-plane microslide, synoptic diagram such as objective box slightly amplify.

(5) embodiment:

The physical construction of ordinary optical microscope is quite accurate, and imaging optical path is closely perfect.This low-cost stereomicroscope does not make any changes to the physical construction and the imaging optical path system of ordinary optical microscope, only increases auxiliary accessories.Auxiliary accessories such as designed collector lens, illuminator, cylindrical micro slide, inclined-plane micro slide are repetition test mistake all, and effect reached purpose of design, so concrete enforcement is not difficult.In concrete enforcement, the material of each auxiliary accessories is selected, the configuration design, with the microscopical coordination of its matching optics etc., should be preferred in test relatively, in the hope of reaching more practical, more attractive in appearance, the effect that cost is lower.For example: among this figure collector lens and light source are installed in respectively on two bases, its objective is for the ease of electric light source and dispel the heat.Using when dispelling the heat less demanding electric light source, collector lens and optically focused lampshade can be fused, reach suitable focusing effect with the adjustable diameter and screw adjusting mutual alignment.

Claims

1, a kind of low-cost stereomicroscope, it is characterized in that on the objective table of ordinary optical microscope, setting up optical bench (1), the optical bench front end has rotating shaft (3), before rotating shaft (3) is fixed on light hole on the objective table, the light source base (10) that can move forward and backward is housed on the optical bench, being equipped with on the light source base can be around the light source shelf (12) of vertical axes rotation, being equipped with on the light source shelf can be around the optically focused lampshade (14) of transverse axis rotation, can the change the outfit electric light source lamp (16) of different capacity of focus place in the optically focused lampshade, before the optically focused lampshade, install can adjusting position collector lens (8), when using the high power objective of little focal length to do the micro-amplification of high power, carry sloping sheet and use cylindrical glass loading surface (21) or inclined-plane microslide (22) instead, cylindrical loading surface (21) is incorporated with in the objective box (23) of cylinder shape groove (24), and the inclined-plane microslide is incorporated with in the objective box of surface groove (25).