Why does the smaller the size, the lower the pixels?
Can the two requirements of high pixels and small size coexist?
Space limitation
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The front end area of the probe is small: The space at the front end of a small-sized endoscope that can accommodate image sensors and related optical components is very limited. High pixels often require a larger image sensor to carry more photosensitive components to achieve higher resolution, but small-sized endoscopes are difficult to meet this space requirement. |
Optical component limitation: In addition to image sensors, high-pixel imaging also requires high-quality optical components, such as lenses, to ensure accurate focusing of light and imaging quality. However, the space limitation of small-sized endoscopes restricts the size and performance of these optical components, making it difficult to achieve the accuracy and quality requirements required for high-pixel imaging.
Technical limitation
The physical limit of pixel miniaturization: As the pixel size continues to shrink, it will gradually approach the physical limit and face many problems. For example, when the pixel size is too small, the light collection area of each pixel is reduced, resulting in a decrease in the sensor's sensitivity to light, which increases the signal-to-noise ratio, increases the number of noise points, and affects the image quality.
Signal transmission and processing issues: High-pixel images mean more data volume. For small-sized endoscopes, it is a huge challenge to achieve high-speed and stable signal transmission and processing in a limited space. This not only requires more advanced electronic circuit design and manufacturing processes, but also requires solving problems such as signal interference and data delay to ensure the real-time and accuracy of the image.
Cost factors
High R&D and production costs: The development of high-pixel technology suitable for small-sized endoscopes requires a large amount of capital investment in R&D, experiments, and equipment updates. At the same time, due to the relatively small production scale, it is impossible to share costs through mass production like large-scale consumer electronic products, resulting in a significant increase in the cost of unit products, which to a certain extent limits the popularity and application of small-sized high-pixel endoscopes.
Market demand and cost-effectiveness: In some application scenarios, the pixel requirements for small-sized endoscopes are not extremely high. Excessively high pixels may lead to a significant increase in costs, but in actual applications, the advantages of high pixels cannot be fully utilized, resulting in low cost-effectiveness. Therefore, from the perspective of market demand and cost-effectiveness, manufacturers may be more inclined to choose moderate pixel configurations for small-sized endoscope products to balance performance and price.
EZON has been engaged in the research and development and manufacturing of endoscopes for more than ten years. The company's main product is a 1MP small-sized endoscope, which is mainly suitable for close-focus macro viewing and is suitable for various industrial fields.
