How to better maintain a biological microscope
1. The placement of biological microscope should choose a dry and clean room to avoid mouldy optical parts, rusty metal parts and sticky dust. After the microscope is used, it is put back into the box (cabinet), or covered with a glass cover, plastic cover, and put into the dry operating agent.
Don't disassemble the parts by yourself; the lens barrel should be inserted into the eyepiece or benefit from the shackle seedling cover to avoid dust from the upper part of the lens barrel; don't touch or wipe the surface of the lens with your fingers, if there is dust, use a soft brush to gently flick it off, then use a soft, clean, fine cloth to wipe and tease, or you can use a mirror paper dipped in xylene or petroleum junkie to try to wipe it off, but be careful not to make stripes on the surface of the lens. If the lens has mild mildew, wipe around the paper can not go, can be used to cotton swabs dipped in a little 70% ethanol and 30% ethyl fan mixture gently wiped teasing.
3, biological microscope can not be placed with corrosive acids, minus class or volatile chemicals together, so as not to be corroded, shorten the service life. In principle, when observing the specimen containing liquid, generally cover the coverslip; if the liquid contains acid, alkali and other corrosive chemicals, the coverslip should be surrounded by paraffin or petroleum jelly seal, and then observe. However, due to the microscopic identification of traditional Chinese medicine, often use this type of reagent, it is not possible to seal the solid, so be especially careful to prevent the liquid flow to the carrier table, the officer should not be stained on the objective lens.
4, biological microscope should not be exposed to direct sunlight, and should not be placed close to the cooker or heater, in order to avoid excessive heat and cold changes caused by the lens and parts of the decolourisation, deformation or damage.
5, clean the receiver lens is limited to the outer surface. Receiver surface is contaminated by drugs that is used to tease the mirror paper dipped in a little mirror wipe (do not use ethanol); if the back to be cleaned, can be used to soft brush flick, or with a leather suction head to suck away the dust.
6, turn the coarse and fine adjustment ratio aluminium focusing, the action should be slow, do not crush the cover sheet, in order to prevent the objective lens and the light collector by the control of the strike and damage.
7, the use of oil mirror, the lens on the cedar oil must be wiped clean (available mirror paper dipped in a little xylene wiping, but note that xylene can not penetrate into the lens, otherwise xylene dissolves the adhesive between the lens, can make the lens off).
8, reflector mirror to protect the clean, do not make water, xylene or cedar oil penetration, so as not to reflect the mercury off.
9, plus the mechanical part of the inflexible, available fine silk cloth dipped in xylene less Jun: swabbing rust and grease (shall not use ethanol, because these solvents will erode the paint), and then lubricated with a small amount of liquid stone service; twisted too tightly do not force to twist, so as not to damage.
10, sometimes found in the field of view of the biological microscope stains or foreign objects, you can first rotate the eyepiece, if these stains follow the rotation, it can be determined that the stain is on the eyepiece; otherwise, you can move the specimen piece, such as stains follow the movement, then the stain is on the specimen piece. If neither, the stains are on the objective lens, and the front lens of the food lens may be picked up first, and then the rear lens examined. Clean and treat according to the unquestioned condition.
Sometimes part of the field of view is not clear, this may be the objective lens or eyepiece of the front lens surface fingerprints or dust, may also be a poorly done specimen piece or improper microscope usage, such as the end of the illumination system adjusted, etc., should be identified to solve the situation, respectively.
11, biological microscope after use, should be wiped clean in all parts of the grid connected to the objective lens into a figure of eight, and then the lens barrel and light collector down fixed, and then the reflector mirror in a vertical position.
