Briefly describe the damage caused by heat from different sources to the image measuring instrument

The projector is a portable machine, a high-precision Measuring Instrument. It is mainly used in machinery, instruments, electronics, light industry, colleges and universities, and research institutions. Measurement and inspection service. The instrument can detect the boundary and surface shapes of various complex shapes, such as template, stamping, cam, milling, etc.

There are many types of optical lens lamps, commercial names and commonly used optical projection lamps, but there are only two types of optical projection: vertical spot light: the main optical axis of vertical spot light is parallel to the screen plane, while most spot lights belong to this type, which is more suitable for measuring flat parts or smaller parts. Horizontal spot light: The main optical axis of the horizontal spot light is perpendicular to the projection screen plane. In general, spot lights belong to this type. They are more suitable for measuring shaft parts or heavy objects with a large volume. In fact, different heat sources cause different locations and different degrees of damage. The large amount of heat emitted by the projector imaging system will lead to a rapid increase in its internal temperature, and the quartz insulation on the inner wall of the projector bulb will lose high temperature penetration, resulting in white spots. Because the "lost position" blocks the light, the temperature in its local area will increase, resulting in the increase of the "lost" area, resulting in rapid attenuation, which may cause the bulb to explode. In addition, the physical characteristics of the "smart nail board" inside the projector determine that its operating temperature should not be too high. As the temperature of other optical elements exceeds its bearing range, it will also cause damage to the optical elements.

The heat from the power supply part of the projector will cause the high temperature of the power supply part, which will lead to the drying of the electrolytic capacitor of the internal power supply, which will lead to the burning of the power switch tube of the projector power supply.