Jiangxi Phenix Optical Technology Co., Ltd. Is the first listed company in the Chinese optical industry (SSE code: 600071), which is Successfully listed on the Shanghai Stock Exchange in 1997. It covers an area of about 333,000㎡ and employees about 3300 people.
We offer exclusive services you can't find with other companies. We have developed a unique service system designed to assist you in building your own Microscopes And of course our team members are always standing by to help you, Chat, Phone, or Email.
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Professional Team
We offer exclusive services you can't find with other companies. We have developed a unique service system designed to assist you in building your own Microscopes And of course our team members are always standing by to help you, Chat, Phone, or Email.
Factory
Jiangxi Phenix Optical Technology Co., Ltd. Is the first listed company in the Chinese optical industry (SSE code: 600071), which is Successfully listed on the Shanghai Stock Exchange in 1997. It covers an area of about 333,000㎡ and employees about 3300 people.
Our Certificate
We always feel that all success of our company is directly related to the quality of the products we offer. They meet the highest quality requirements as stipulated in ISO9001, ISO14001, ISO45001 and SGS authentication and our stringent quality control system.
Production Equipment
We have a huge production workshop and production equipment, under the premise of ensuring quality can quickly complete the order production.
XT-III-2040X stereo microscope, which is with novel shape and ergonomic line design, easy to operate and use. Mainly be used as mini stereo microscope, smartphone microscope, light stereo microscope and so on.
Binocular Stereo Zoom Microscope
XTL-165 Binocular Stereo Zoom microscope is widely used in various industry fields, such as machinery and electronics, industrial detecting, instrumentation, jewellery detecting and so on.
Binocular Stereoscopic Microscope
SMZ180 is mainly be used as pcb microscope, gemological microscope, gem microscope, scanning electron microscope, gemology microscope.
Digital Stereo Zoom Microscope
XTL-168 stereoscopic microscope, can be widely used in many industries and fields, such as machinery and electronics, instrumentation, precision parts, agriculture, forestry and environmental protection, criminal investigation and identification, and pearl treasure detection.
Polarizing Petrographic Microscope
PH 100 - PG series is the use of polarization microscope and polarization dentification precision instrument.lt is available for users to do single polarization observation orthogonal polarization observations cone oi ight.
Trinocular Polarizing Microscope
PH-PG3230 transreflectance polarizing microscope is a necessary instrument to study and identify the properties of birefringent objects by using the polarization characteristics of light.
The Trinocular Polarized Microscope uses polarized light to study anisotropic specimens like liquid crystals and minerals. It includes a polarizer positioned in the light path before the specimen and an analyzer placed in the light path between the observation tubes or camera port and objective rear aperture.
The microscope is equipped with two polarizing filters known as polarizer and analyzer. It includes a dividing eyepiece and a trinocular eyepiece tube that is inclined at 30° and can capture the images in 100% light flux. Long infinity objectives are present that make the field of view clear and wide. It also includes 50X ~ 600X magnification lenses, a reflected illumination system, a quadruple nosepiece, a focusing system, a puller-type Bertrand lens as an intermediate attachment, and λ, λ/4, and quarts wedge compensator.
Photography and Video Recording
The third port can be fitted with a camera or video recorder, enabling high-quality documentation of specimens without blocking the view for the microscopists. This is particularly useful for scientific publications, presentations, and educational purposes.
Ease of Operation
With a trinocular design, users can switch between visual inspection and photography/video recording without the need to adjust or remove the eyepieces.
Improved Focusing
Some trinocular polarizing microscopes come with coaxial focusing, meaning the fine focus knob is positioned centrally and within easy reach of both observers, simplifying the focusing process.
Advanced Imaging Capabilities
When coupled with digital imaging systems, trinocular polarizing microscopes can capture detailed images and perform quantitative analysis of specimens, expanding their utility in research and diagnostics.
Specialized Applications
In materials science, geology, and forensics, polarizing microscopy is essential for identifying minerals, fibers, and other materials based on their optical properties. The trinocular setup enhances these applications by allowing for simultaneous observation and documentation.
Trinocular Polarizing Microscope Optical Principle
Refraction and refractive index Light propagates in a straight line between two points in a uniform isotropic medium. When passing through transparent objects with different density media, refraction occurs. This is due to the different propagation speeds of light in different media. of. When light rays that are not perpendicular to the surface of a transparent object are incident on a transparent object (such as glass) from the air, the light ray changes direction at its interface and forms a refraction angle with the normal.
Performance of lenses Lenses are the most basic optical elements that make up the optical system of a microscope. Components such as objective lenses, eyepieces and condensers are composed of single or multiple lenses. According to their different shapes, they can be divided into two categories: convex lenses (positive lenses) and concave lenses (negative lenses). When a beam of light rays parallel to the optical axis passes through a convex lens and intersects at a point, this point is called the "focus", and the plane that passes through the intersection point and is perpendicular to the optical axis is called the "focal plane". There are two focal points. The focus in the object-space is called the "object-space focus", and the focal plane there is called the "object-space focal plane." On the contrary, the focus in the image-space is called the "image-space focus." The focal plane at is called the "image square focal plane". After light passes through a concave lens, it forms an upright virtual image, while a convex lens forms an upright real image. Real images can appear on the screen, but virtual images cannot.
The key factor affecting imaging-aberration. Due to objective conditions, no optical system can generate a theoretically ideal image. The existence of various aberrations affects the imaging quality. The various aberrations are briefly introduced below.
Application of Trinocular Polarizing Microscope
Optics
The trinocular head is equipped with a trinocular tube for mounting a digital camera (camera not included). By using the switch on the body, the light is completely directed either to the eyepiece tubes or to the digital camera. The 30° angle of the eyepiece tubes is comfortable for long-term observations and does not cause strain on the neck muscles. The left tube has a diopter adjustment ring in which it rotates and adapts the optics of the microscope to the user's unique vision.
Illumination
The illumination source is located under the object stage, i.e., observations are carried out in transmitted light. The 30W halogen bulb produces bright, eye-friendly illumination that is suitable for use on all objectives.
The microscope is equipped with a polarizer and analyzer. To work in polarized light, the analyzer is introduced into the optical path, and the polarization angle is changed by rotating the polarizer and analyzer relative to each other. The microscope also has an intermediate attachment that holds a Bertrand lens and has a slot for compensators.
Stage and focusing mechanism
The microscope stage rotates and that enables you to quickly change the refraction of light by the sample when working in polarized light. The stage is centered relative to the optical axis of the microscope, has rotation angle gradation and a scale that enables you to determine the angle with an accuracy of 0.1°
How to use Polarizing Microscope
First, rotate the fine adjustment handwheel so that the fine adjustment is in the middle position, then turn the coarse adjustment handwheel, lower the lens barrel, and bring the objective lens closer to the slice (viewed from the side). Then, while observing the slice, slowly raise the lens barrel until the minerals are clearly visible. This can avoid the objective lens and the slice colliding with each other, crushing the slice and damaging the lens. If the coarse adjustment handwheel is found to be too loose or too tight, hold one coarse adjustment handwheel tightly with your hand and turn the other handwheel to make appropriate adjustments.
1. Calibrate the eyepiece reticle crosshairs
Insert the latches on the eyepiece into the appropriate bayonet on the lens barrel so that the crosshairs of the eyepiece reticle are in the east-west (horizontal wire) and north-south (vertical wire) directions.
2. Correction of polarizer
Adjust the vibration direction of the lower polarizer to be parallel to the crosshairs of the eyepiece reticle
Make the biotite cleavage seam parallel to the horizontal wire of the eyepiece reticle, and rotate the lower polarizer until the biotite appears dark brown. At this time, the vibration direction of the lower polarizer is parallel to the horizontal wire, and its reticle should be aligned with 0° or 180°. .
3. Method for adjusting the center of the objective lens
Observe the slice on the rotating table and find a small black spot in the slice so that it is located in the center of the eyepiece crosshairs.
Rotate the workbench. If the center 0 of the optical axis of the objective lens is inconsistent with the center of the workbench, the black point will leave the center of the crosshair and rotate in a circle. The center S of the circle is the center of the workbench.
4. When using a low-magnification objective lens, the conoscope should be moved out of the optical path. When using a high-magnification objective lens and observing conoscopic images, you must turn the conoscope into the optical path and adjust the lock aperture size appropriately.
5. When viewing conoscopic images under a high-magnification objective lens, it is necessary to add a Boret mirror to the light path, and a wool pick can be added to the illumination source. When observing tiny minerals, a small aperture diaphragm should be added to the light path.
6. When using artificial lighting source, you can add a blue color filter under the lower polarizer to make the brightness and tone of the field of view uniform.
7. When the sheet is placed on the object table, the broken cover of the sheet must be upward, and the sheet must be clamped with a spring clip.
8. When using a high-magnification objective lens for observation, generally use a low-magnification objective lens to find the target first, move the observation target to the center of the field of view, and then replace it with the high-magnification objective lens. When changing, the lens barrel should be raised to move the objective lens away from the slice. This can prevent the slice from moving due to the objective lens hitting the slice. At the same time, be careful not to move the objective lens adjustment screw.
Components of Trinocular Polarizing Microscope
Mirror arm: It is bow-shaped, with its lower end connected to the mirror base and the upper part equipped with a lens barrel.
Reflector: It is a small round mirror with flat and concave sides, used to reflect light into the optical system of the microscope. When conducting low-magnification research, the amount of light required is not large, and a plane mirror can be used. When conducting high-magnification research, a concave mirror can be used to converge the light a little, which can increase the brightness of the field of view.
Lower polarizer: Located above the reflector, the natural light reflected from the reflector, after passing through the lower polarizer, becomes polarized light with a fixed vibration direction. PP is usually used to represent the vibration direction of the lower polarizer. The lower polarizer can be rotated to adjust its vibration direction.Lock aperture: above the lower polarizer. It can be opened and closed freely to control the light entering the field of view.
Condenser: Above the aperture lock. It is a small convex lens that can condense the polarized light from the lower polarizer into cone-shaped polarized light. The condenser can be placed or lowered freely.
Stage: It is a circular platform that can rotate. There is a scale (0-360)° on the edge and a vernier scale attached. The angle can be read accurately to 1/10 degree. It is also equipped with fixing screws to fix the stage. There is a round hole in the center of the stage, which is a channel for light. There is a pair of spring clips on the stage to hold the light sheet.
Lens barrel: It is a long cylindrical shape and is installed on the mirror arm. Turn the coarse screw or fine screw on the arm to adjust the focus. The upper end of the lens barrel is equipped with an eyepiece, the lower end is equipped with an objective lens, and there is a test plate hole, an upper polarizer and a Bertrand mirror in the middle.
Objective lens: Composed of l-5 groups of compound lenses. The lens at the lower end is called the front lens, and the lens at the upper end is called the rear lens. The smaller the front lens and the longer the lens, the greater its magnification. Each microscope comes with 3-7 objective lenses with different magnifications. Each objective lens is engraved with the magnification, numerical aperture (N.A), mechanical barrel length, cover glass thickness, etc. The numerical aperture indicates the light-gathering ability of the objective lens. The higher the magnification of the objective lens, the greater the numerical aperture. For the same magnification objective lens, the larger the numerical aperture, the higher the resolution.
Eyepiece: It consists of two plano-convex lenses. A cross eyepiece, eyepiece grid or differentiated eyepiece can be placed in the eyepiece tube. The total magnification of a microscope is the product of the eyepiece magnification and the objective magnification.
Upper polarizer: Its structure and function are the same as those of the lower polarizer, but its vibration direction (expressed as AA) is perpendicular to the vibration direction of the lower polarizer (expressed as PP). The upper polarizer can be pushed in or out freely.
Bertrand lens: Located between the eyepiece and the upper polarizer, it is a small convex lens that can be pushed in or pulled out as needed. In addition, in addition to the above main components, polarizing microscopes also have some other accessories, such as stage micrometers, mechanical stages and electric integrators for quantitative analysis, and gypsum test boards for crystal photometric identification. , mica test plate, quartz wedge color complementer, etc.
Jiangxi Phenix Optical Technology Co., Ltd. Is the first listed company in the Chinese optical industry (SSE code: 600071), which is Successfully listed on the Shanghai Stock Exchange in 1997. It covers an area of about 333,000㎡ and employees about 3300 people.
Our Certificate
We always feel that all success of our company is directly related to the quality of the products we offer. They meet the highest quality requirements as stipulated in ISO9001, ISO14001, ISO45001 and SGS authentication and our stringent quality control system.
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