The optometry projector is a common medical device that can check the vision problems, refractive error and astigmatism of the human eye. However, some malfunctions of optometry projectors can occur during long time use, such as the following:
1. Damage to the projection lens: Optometry projectors are used to project the image onto the vision chart through the projection lens, and if the projection lens is damaged, the clarity and accuracy of the image will be affected. It may be due to reasons such as the lens being hit or dropped, or it may be caused by the aging of the projection lens.
2. Display brightness is too low: If the display of the optometry projector is too low, it will affect the range of vision of the doctor or the examiner, affecting the accuracy of the examination. This may be due to aging of the display lamp or poor heat dissipation.
3. Inaccurate color rendering: Inaccurate color rendering of the optometry projector can also affect the results of the optometry test. This may be due to factors such as aging or damage to the components of the optical system, excessive use of the bulb, broken bulbs or too much dust.
4. Focus adjustment failure: Optometry projector in the use of the process needs to be adjusted by the focal length of the lens to obtain a clear image. If the focus adjustment of the optometry projector fails, it will lead to blurred images and affect the accuracy of the examination. It may be caused by lens jamming or bearing damage.
5. Hardware Damage: Optometry projectors are made up of many parts and components, and if any of the hardware is damaged, it will lead to failure of the optometry projector. For example, power switch failure, sensor damage, poor wiring connections.
The optometry projector is a common examination equipment in hospitals, and a malfunction may have an adverse effect on doctors and patients, and it is easy to cause damage to the equipment if it is used too much. Therefore, hospitals should pay great attention to the maintenance of optometry projectors, timely detection and resolution of malfunctions to ensure the accuracy and safety of the results.