没有图像

No images

（1）原因分析：没有图像是内窥镜常出现的故障，物镜的损坏或者进水、内管柱状透镜的碎裂都会出现没有图像的现象，而内管透镜只要其中一个柱状透体碎裂就会导致没有图像。

(1) Reason analysis: Lack of image is a common malfunction in endoscopes. Damage to the objective lens, water ingress, or fragmentation of the inner tube cylindrical lens can result in lack of image. However, as long as one of the cylindrical transparent bodies of the inner tube lens is fragmented, it can lead to lack of image.

（2）排除方法：，借助放大镜检查镜身有没有凹痕或者弯曲；其次，看物镜端有没有破裂；后，检查镜子是否因密封性能不好造成进水。

(2) Troubleshooting: Firstly, use a magnifying glass to check for dents or bends in the mirror body; Secondly, check if the objective lens end is broken; Afterwards, check the mirror for water ingress due to poor sealing performance.

图像发暗

Image darkening

（1）原因分析：图像发暗通常是由光源引起的，物镜和光纤上的污物及硬镜管内有潮气进入也会使图像发暗。

(1) Reason analysis: Image darkening is usually caused by the light source, and dirt on the objective lens and optical fiber, as well as moisture entering the hard lens tube, can also darken the image.

（2）排除方法：，采用更换法检查光纤是不是断裂太多（一般情况下光纤断裂不超过15%可以继续使用，一旦超过15%就会出现图像发暗的现象）；其次，检查硬镜的物镜和光纤上有没有污物及灰尘；后，检查镜子的密封性是否完好。

(2) Exclusion method: Firstly, use the replacement method to check if the optical fiber has too many fractures (generally, the optical fiber can continue to be used if the fracture does not exceed 15%, and once it exceeds 15%, the image will appear dark); Secondly, check for dirt and dust on the objective lens and optical fiber of the hard lens; Afterwards, check if the sealing of the mirror is intact.

图像发黄

Image yellowing

（1）原因分析：图像发黄大多数情况是由于物镜组故障导致。

(1) Cause analysis: The yellowing of the image is mostly caused by a malfunction of the objective lens group.

（2）排除方法：内窥镜设备维修人员来查看机器上的色彩参数是否设置正确；其次，检查是不是有潮气进入内镜；后，观察物镜组上的黏胶有没有老化引起的发黄。

(2) Troubleshooting method: Endoscopic equipment maintenance personnel should check whether the color parameters on the machine are set correctly; Secondly, check if there is moisture entering the endoscope; Afterwards, observe whether the adhesive on the objective lens group has yellowing caused by aging.

图像内发现灰尘

Dust found in the image

（1）原因分析：图像内有灰尘一是物镜、目镜外有污物或者是整个光学系统比较脏引起的，二是柱状透体与间隔管柱在使用期间有摩擦现象，也会产生细小粉末，时间长以灰尘状反映在图像上。

(1) Reason analysis: There is dust inside the image. Firstly, there is dirt outside the objective lens and eyepiece, or the entire optical system is relatively dirty. Secondly, there is friction between the columnar transparent body and the spacing tube column during use, which can also produce small powder, which is reflected in the image as dust over time.

（2）排除方法：检查物镜和目镜上有没有污物、灰尘和划痕。

(2) Troubleshooting: Check for dirt, dust, and scratches on the objective lens and eyepiece.

雾状图像

Foggy image

（1）原因分析：产生雾状图像主要是有水汽进入，特别是由于老化，水汽从物镜端、目镜端及光纤封口处进入镜体。

(1) Reason analysis: The formation of foggy images is mainly due to the entry of water vapor, especially due to aging. Water vapor enters the lens body from the objective lens end, eyepiece end, and fiber seal.

（2）排除方法：检查物镜和目镜端的密封性，检查光纤接口处的密封性。

(2) Troubleshooting: Check the sealing of the objective and eyepiece ends, and check the sealing of the fiber optic interface.

图像变形有阴影

Image deformation with shadows

（1）原因分析：图像变形有阴影多是由人为因素导致的工作管受力弯曲变形所致，也有可能是成像系统里面出现松动引起的。

(1) Reason analysis: Image deformation and shadows are often caused by human factors such as bending and deformation of the work tube under force, or it may be caused by looseness in the imaging system.

（2）排除方法：转动镜子检查镜身是否扭曲或者弯曲。

(2) Troubleshooting: Rotate the mirror to check if the mirror body is twisted or bent.

硬性内窥镜是一种贵重、使用频率较高的精密设备，看似结实，其实较为脆弱，在使用的各个环节都可能导致镜子的损坏。所以要好好对其使用维护，更多事项就来我们网站http://www.jiangrenyiliao.cn咨询吧！

A rigid endoscope is a valuable and frequently used precision device that appears sturdy but is actually fragile, and can cause damage to the mirror in all stages of use. So we need to properly use and maintain it, and more matters will come to our website http://www.jiangrenyiliao.cn Consult!