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China Shenzhen City Haozhou Technology Co., Ltd.
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Shenzhen City Haozhou Technology Co., Ltd.
Shenzhen Haozhou Technology Co., Ltd. was established in 2014. It is a high-tech company specializing in R&D, design, production, sales, CMOS camera module, USB camera module, analog camera module, endoscope camera module, sensor chip and other high-quality camera modules technology enterprise. Provide a full range of processes, SMT, modules, assembly, packaging and other one-stop services. Passed IS09001 CE ROHS quality system certification. Products are widely used in nearly a hundred fields such as face recognition, biometrics, artificial intelligence, machine vision, drones, self-service terminals, smart homes, security monitoring, and medical applications.Warmly welcome OEM and ODM. We can design according to the drawings provided by customers. All of our products have a 2-year warranty, we are willing to provide customers with products that carry corporate culture and convey brand ideas to end users, we believe that success is built on a solid foundation and commitment to delivery. haozhou provides high quality camera modules with professional OEM design and manufacturing services to customers worldwide. We are carrying OmniVision, Sony, Samsung, Hynix, GalaxyCore... The main application areas: AI VR mobile phone, digital still camera, laptop, DV, PDA/handheld, toy, PC camera, security camera, automotive camera, tablet pc, visual doorbell, medical system, smart home, industrial image, recognition system, fingerprint identification system ...
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Selection of optical lenses for vision systems 2026-07-31 .gtr-container-7f8g9h { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; font-size: 14px; line-height: 1.6; color: #333; max-width: 100%; padding: 15px; box-sizing: border-box; margin: 0 auto; } .gtr-container-7f8g9h p { margin-bottom: 1em; text-align: left !important; } .gtr-container-7f8g9h .gtr-intro-paragraph { margin-bottom: 20px; } .gtr-container-7f8g9h .gtr-section-subtitle { font-size: 16px; font-weight: bold; color: #0000FF; margin-top: 25px; margin-bottom: 15px; text-align: left !important; } .gtr-container-7f8g9h .gtr-section-heading { font-size: 18px; font-weight: bold; color: #0000FF; margin-top: 30px; margin-bottom: 20px; text-align: left !important; } .gtr-container-7f8g9h ol.gtr-parameter-list { list-style: decimal; padding: 0; margin: 0; } .gtr-container-7f8g9h ol.gtr-parameter-list li.gtr-parameter-item { list-style: none !important; position: relative; padding-left: 35px; margin-bottom: 20px; } .gtr-container-7f8g9h ol.gtr-parameter-list li.gtr-parameter-item::before { content: counter(list-item) "." !important; position: absolute !important; left: 0 !important; color: #0000FF; font-weight: bold; width: 25px; text-align: right; top: 0; } .gtr-container-7f8g9h .gtr-parameter-title { font-size: 16px; font-weight: bold; color: #0000FF; margin-bottom: 8px; text-align: left !important; } .gtr-container-7f8g9h .gtr-parameter-item p { margin-bottom: 0; } .gtr-container-7f8g9h .gtr-summary-paragraph { margin-top: 25px; padding-top: 15px; border-top: 1px solid rgba(0, 0, 255, 0.1); text-align: left !important; } @media (min-width: 768px) { .gtr-container-7f8g9h { max-width: 960px; padding: 30px; } .gtr-container-7f8g9h .gtr-section-heading { font-size: 20px; margin-top: 40px; margin-bottom: 25px; } .gtr-container-7f8g9h .gtr-section-subtitle { font-size: 18px; margin-top: 30px; margin-bottom: 20px; } .gtr-container-7f8g9h .gtr-parameter-title { font-size: 18px; margin-bottom: 10px; } .gtr-container-7f8g9h ol.gtr-parameter-list li.gtr-parameter-item { margin-bottom: 25px; } } The optical lens of the visual system is generally called a camera lens or photographic lens, or lens for short, and its function is optical imaging. The lens is an important component in the machine vision system and plays a key role in imaging quality. It affects several major indicators of imaging quality, including: resolution, contrast, reduction and viewing angle. There are not only many types of lenses, but also very different quality. However, ordinary users often do not pay enough attention to the selection of lenses when designing the system, resulting in failure to obtain ideal images and even failure of system development. Therefore, the selection of optical lenses for vision systems is also crucial. Selection of optical lenses for vision systems (Figure 1) Vision system optical lens parameter selection: High image resolution Image resolution is generally measured by a CTF (contrast transfer function) that quantifies the existing spatial frequency contrast of the image sensor, in units of lp/mm (line couplings per millimeter). Most machine vision integrators often just collect a large number of cheap low-pixel, low-resolution lenses, and then can only generate blurry images. With the AFT telecentric lens, high-resolution images can be generated even with small-pixel image sensors (such as 5.5 megapixels, 2/3"). Nearly zero distortion The distortion coefficient is the percentage difference between the actual size and the image size of the image sensor. Ordinary machine lenses usually have distortion higher than 1~2%, which may seriously affect the accuracy of measurement. In contrast, telecentric lenses undergo strict manufacturing and quality inspection to strictly control this error below 0.1%. No visual errors When making precise linear measurements in metrology applications, it is often necessary to observe the object from the standard front (not including the side at all). In addition, many mechanical parts cannot be placed accurately, and the measurement time intervals are constantly changing. Software engineers, on the other hand, need images that accurately reflect the real thing. Telecentric lenses can perfectly solve the above confusion: because the entrance pupil can be located at infinity, only the main ray parallel to the optical axis will be received during imaging. Perspective As the name suggests, the viewing angle is the angle of the line of sight, that is, how "wide" the visual system's optical lens can see. These parameters are all interrelated. The relationship between the optical lenses of the visual system is: (1) The smaller the focal length, the larger the viewing angle; (2) The shorter the working distance, the larger the visual field. For ordinary lenses, the selection principles are: the closer the working distance, the better, the smaller the distortion of the lens, the better, and the larger the field of view, the better.
Why is the built-in light source better for industrial cameras? 2026-07-31 .gtr-container-x7y2z9 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; font-size: 14px; line-height: 1.6; color: #333333; padding: 20px; margin: 0 auto; max-width: 800px; box-sizing: border-box; } .gtr-container-x7y2z9 p { margin-bottom: 1em; text-align: left !important; word-break: normal; overflow-wrap: normal; } .gtr-container-x7y2z9 .gtr-heading-style { font-size: 18px; font-weight: bold; color: #0000FF; margin-top: 1.5em; margin-bottom: 1em; text-align: left !important; } @media (min-width: 768px) { .gtr-container-x7y2z9 { padding: 30px; } .gtr-container-x7y2z9 .gtr-heading-style { font-size: 20px; } } The acquisition of images is indispensable for pre-judgment of image distance, picture positioning instructions, and the influence of the lens. Few industrial cameras on the market now have their own customized light sources, but for industrial image processing projects, the light source is an important condition that determines the consistency of the picture, because in the process of shooting and recognition, the speed and effectiveness of image processing mostly depend on the imaging quality. Why is the built-in light source better for industrial cameras? As we all know, different materials reflect light to different degrees, such as product back covers or metal surface reflections. Currently, photography that is sensitive to light basically adjusts the brightness and angle of the softbox to avoid exposure or reflection in the picture. The same goes for fill light. In industrial sites, the intensity and angle changes of the light source also have a great impact on the effect of visual image processing. If the product being tested itself has a certain amount of reflection, then we need to adjust the light source to obtain the consistency of the picture, making image processing more effective. It is necessary to supplement light in different environments. superEye divides the light source into 3 rings and 12 channels are controllable. During the shooting process, in order to avoid bright spots and reflections in the picture. 12-way lights can be adjusted. For example, control the on and off of a single light, or adjust the brightness of a single light. The adjustable brightness range of a single-channel light is: 0~100. The more refined the light and shade of the light source, the more detailed the control of the picture, and the better the image effect. For factory assembly lines and shooting products in motion, the shorter the exposure time, the smaller the impact of movement on the shooting. The built-in light source fully cooperates with shooting. We can adjust the exposure and gain of the camera according to the actual situation, and adjust the size, brightness and frequency of the light. Make the light brightness meet the requirements of the shooting environment and the camera exposure frequency. thereby obtaining better images.
The difference between sensor CCD and CMOS 2026-07-31 /* Unique root container for style isolation */ .gtr-container-a7b2c5 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333333; line-height: 1.6; padding: 20px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word; } /* General paragraph styling */ .gtr-container-a7b2c5 p { font-size: 14px; margin-bottom: 1em; text-align: left !important; padding-left: 0; padding-right: 0; } /* Title styling - Level 1 (e.g., CCD, CMOS, Comparison) */ .gtr-container-a7b2c5 .gtr-title-level-1 { display: block; font-size: 18px; font-weight: bold; color: #0000FF; /* Theme color */ margin-top: 1.5em; margin-bottom: 0.8em; text-align: left !important; } /* Title styling - Level 2 (e.g., Interline Transfer) */ .gtr-container-a7b2c5 .gtr-title-level-2 { display: block; font-size: 16px; font-weight: bold; color: #0000CC; /* Slightly darker theme color */ margin-top: 1em; margin-bottom: 0.5em; text-align: left !important; } /* Comparison point emphasis */ .gtr-container-a7b2c5 .gtr-comparison-point { font-weight: bold; color: #0000FF; /* Theme color */ } /* List styling reset and custom markers */ .gtr-container-a7b2c5 ul, .gtr-container-a7b2c5 ol { list-style: none !important; margin: 0; padding: 0; margin-bottom: 1em; } .gtr-container-a7b2c5 li { list-style: none !important; position: relative; padding-left: 25px; /* Space for custom marker */ margin-bottom: 0.5em; font-size: 14px; text-align: left !important; } /* Main ordered list (1., 2.) */ .gtr-container-a7b2c5 .gtr-main-list { counter-reset: gtr-main-counter; } .gtr-container-a7b2c5 .gtr-main-list-item { counter-increment: gtr-main-counter; } .gtr-container-a7b2c5 .gtr-main-list-item::before { content: counter(gtr-main-counter) "." !important; position: absolute !important; left: 0 !important; top: 0; font-weight: bold; color: #0000FF; /* Theme color */ width: 20px; text-align: right; } /* Sub-ordered list ((1), (2), (3)) */ .gtr-container-a7b2c5 .gtr-sub-list { counter-reset: gtr-sub-counter; margin-top: 0.5em; margin-bottom: 1em; } .gtr-container-a7b2c5 .gtr-sub-list-item { counter-increment: gtr-sub-counter; } .gtr-container-a7b2c5 .gtr-sub-list-item::before { content: "(" counter(gtr-sub-counter) ")" !important; position: absolute !important; left: 0 !important; top: 0; font-weight: bold; color: #0000CC; /* Slightly darker theme color */ width: 20px; text-align: right; } /* Comparison ordered list (1., 2., 3.) */ .gtr-container-a7b2c5 .gtr-comparison-list { counter-reset: gtr-comparison-counter; margin-top: 0.8em; } .gtr-container-a7b2c5 .gtr-comparison-list-item { counter-increment: gtr-comparison-counter; } .gtr-container-a7b2c5 .gtr-comparison-list-item::before { content: counter(gtr-comparison-counter) "." !important; position: absolute !important; left: 0 !important; top: 0; font-weight: bold; color: #0000FF; /* Theme color */ width: 20px; text-align: right; } /* Table styling (general rules, not used in this specific content but required) */ .gtr-container-a7b2c5 .gtr-table-wrapper { width: 100%; overflow-x: auto; margin-top: 1em; margin-bottom: 1em; } .gtr-container-a7b2c5 table { width: 100%; border-collapse: collapse !important; border-spacing: 0 !important; min-width: 600px; /* Ensure horizontal scroll on small screens if content is wide */ border: 1px solid #A0A0FF !important; /* Light blue border for precision */ } .gtr-container-a7b2c5 th, .gtr-container-a7b2c5 td { padding: 10px 15px !important; text-align: left !important; vertical-align: top !important; border: 1px solid #A0A0FF !important; /* Light blue border for precision */ font-size: 14px !important; color: #333333 !important; word-break: normal !important; overflow-wrap: normal !important; } .gtr-container-a7b2c5 th { background-color: #E0E0FF !important; /* Very light blue background for headers */ font-weight: bold !important; color: #0000CC !important; /* Darker theme blue for header text */ } .gtr-container-a7b2c5 tr:nth-child(even) { background-color: #F8F8FF !important; /* Zebra striping for readability */ } /* Responsive design for PC (min-width: 768px) */ @media (min-width: 768px) { .gtr-container-a7b2c5 { padding: 30px 40px; max-width: 960px; /* Constrain width for better readability on large screens */ margin: 0 auto; /* Center the component */ } .gtr-container-a7b2c5 .gtr-title-level-1 { font-size: 20px; } .gtr-container-a7b2c5 .gtr-title-level-2 { font-size: 18px; } .gtr-container-a7b2c5 table { min-width: auto; /* Allow table to shrink on larger screens if content fits */ } } The sensor is the core component of the camera. It has functions such as photoelectric conversion, information storage, delay and sequential transmission of electrical signals. It has high integration and low power consumption, so it has subsequently developed rapidly. It is an indispensable key device for image acquisition and digital processing. Currently, there are two types of photosensitive chips commonly used in cameras on the market: CCD and CMOS. CCD (Charge Coupled Device) Currently, there are three structures of commonly used CCD cameras: full frame transfer, frame transfer and line transfer. Interline Transfer Among the three structures, row transfer is the most commonly used one, and most mid- and low-end products use this method. Full frame transfer (Full frame) The full frame transfer structure is the simplest, the photosensitive area and the storage area are together, and a 100% fill factor can be obtained. The disadvantage is that in order to avoid image light leakage, external light must be prevented from entering during readout. This can be achieved by using a mechanical shutter, using a strobe, or making the exposure time much longer than the readout time to minimize light leakage. Frame transfer The frame transmission structure is that the photosensitive area and the storage area are completely separated and equal in size. The exposed signal charge is transferred to the storage area at a very fast speed (usually less than 1% of the frame period) and then output line by line. It is obvious that the frame transfer sensor achieves 100% fill factor and during the readout process, the next frame is exposed. The disadvantage is that the chip size is large and the cost is high. CMOS (Complementary Metal Oxide Semiconductor) Sensor The principles of the photosensitive part of CMOS sensors and CCD sensors are the same. The difference is that in each pixel unit, in addition to the photosensitive part, there is also an amplifier and readout circuit part. The entire CMOS sensor also integrates an addressing circuit, amplifier and A/D. Comparison of the main performance of CCD and CMOS The first point is the difference in full well capacity: Since each pixel of the CMOS sensor includes a photosensitive diode, amplifier and readout circuit, and the entire sensor also includes an addressing circuit and A/D, the photosensitive area of ​​each pixel is much smaller than the surface area of ​​the pixel itself. Therefore, with the same pixel size, the full well capacity of the CMOS sensor is lower than that of the CCD sensor. The second point is the cost difference: Since CMOS sensors use the CMOS process most commonly used in general semiconductor circuits, peripheral circuits (such as AGC, CDS, timing, or DSP, etc.) can be easily integrated into the sensor chip, thus saving the cost of peripheral chips. The third point is that the CMOS sensor can be randomly addressed, making it very convenient to read out only the interesting part of the queue and improve the frame rate. The fourth point is noise difference: Since each photodiode of the CMOS sensor is equipped with an amplifier, and the amplifier is an analog circuit, it is difficult to make the results obtained by each amplifier consistent. Therefore, compared with a CCD sensor with only one amplifier at the output end of the horizontal register, the noise of the CMOS sensor will increase a lot, affecting the image quality. The fifth point is the difference in power consumption: the power consumption of CMOS sensors is lower than that of CCD sensors. To sum up, the advantage of CCD is that the image quality is better than that of CMOS, but the disadvantages are also obvious. Its process is too complicated, and there are very few manufacturers that can master its technology, so the price is destined to not be cheap, especially for some large CCD components, the price is even more unacceptable. Therefore, in the current camera market, high-end cameras generally use CCD imagers to demonstrate identity and status. The biggest advantage of cmos imager is that it saves power. With the same battery and the same configuration, cmos can be used 1-2 hours longer than ccd, because it only consumes power when the circuit is connected, while ccd consumes power all the time. It is the so-called "electric tiger". Based on this, we can maximize our strengths and avoid weaknesses, and reasonably choose CCD or CMOS cameras for different applications.
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