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Light filter industrial lens

2026-09-04 10:32
2026-09-04 10:56

In industrial lenses, the filter played an important role. The filter was an accessory used at the front of the lens. There were many types, including the lens cover, the polar filter, the neutral density filter, the color filter, the band-pass filter, the infrared filter, the infrared filter, and so on. 1. ** Protective lens cover **: Its function is to prevent dirt and dust from attaching to the lens surface and protect the lens glass. 2. ** Polarizing filter (Polarizer)**: Able to filter out reflections. It can eliminate and reduce the illumination of the light source on the smooth surface. During installation, the light source and the lens need to be equipped with corresponding polar filter respectively. By installing a polar lens in front of the industrial lens and carefully rotating the polar lens, the harmful glare can be minimized or even disappeared, so as to take a glare-free photo. 3. ** Neutral gray filter/light reduction mirror/ND mirror **: Able to reduce light evenly without changing the aperture, preventing overexposed and suppressing low resolution. 4. ** Color filter, band-pass filter **: Only transmit the light needed for inspection, cutting off obstructing environmental light such as sunlight and fluorescent lamps. 5. ** Anti-infrared filter **: Reduce interference and remove excess infrared light. 6. ** Ultraviolet protection filter **: Used to observe the fluorescence of violet light (exciting light). Choosing the appropriate filter in the imaging system can achieve some special effects, and the design of the imaging light path needs to pay attention to the influence of various stray lights. The filter can help to obtain clear images for analysis and detection. Read more exciting novels for free

Latest Questions

If you fall into the hippopotamus area, will you be eaten by the hippopotamus?

If you fall into the hippopotamus area, will you be eaten by the hippopotamus? [ɪf juː fɔːl ˈɪntuː ðə ˌhɪpəˈpɒtəməs ˈeəriə, wɪl juː biː ˈiːtn baɪ ðə ˌhɪpəˈpɒtəməs] <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-09-06 19:37

Master of Stone Gambling

In the field of stone gambling, there was no official definition of the so-called "stone gambling master" standard. However, in the world of stone gambling, some people might be regarded as experts because of their rich experience, keen intuition, or unique skills. From the plot of some novels, such as Lin Yue in the Jade King, he was originally a stone-cutter in Zhang's processing workshop. Although he failed, he made a name for himself in the stone-gambling world after obtaining the x-ray vision ability. This was a fictional character who was very capable in stone gambling. In reality, real stone gambling experts often had many years of industry experience. They were familiar with the characteristics of different raw jades, including the thickness, color, texture, etc. of the shell, because these factors might imply the quality of the jade inside. However, even experienced people couldn't guarantee that they would succeed every time because of the unpredictability of raw jade. " Fairy Dream of Tang Shi: Fate of Peony " is equally wonderful. Everyone is welcome to click and read it!

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2026-09-06 19:36

Immortal Martial Arts University Star's full novel TLV download

You can search for the complete novel of the star of Immortal Martial Arts University through the search engine. Some websites may provide free online reading and txt-download services. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-09-06 19:36

Design case of creative internet celebrity street in Hefei

The following are some creative design cases of popular streets in Hefei: - ** Hechai·1972 Cultural Creation Park **: This is the first cultural creation park in China that was transformed from the former site of a prison (Hefei diesel factory), with a total construction area of about 300,000 square meters. It integrated exhibition, science and technology office, urban leisure, cultural tourism, fashion life, and supporting business. Since the opening of the park in October 2019, it has been popular. During peak times, the daily flow of people can reach 50,000, becoming the city's cultural card and popular tourist website. - ** Lei Street **: located in Baohe District, covering a total area of 1650 acres. By creating a special food street, bar street,"Lei + Village","Lei + Lane", Lei Street City Comprehensive Park and other regional cultural experience spaces, they engraved the memories of Hefei and presented the character of Hefei. It also served the city's innovation and start-up through the cultivation of creative markets, maker spaces, and Lei Street Media Commune. It was a comprehensive neighborhood that integrated shopping, dining, leisure, culture, office, and creativity. - ** Jindadi East and West Street **: Located in the Shushan District, it is divided into two blocks, East Street and West Street, along both sides of Huaining Road. The total construction area is more than 80,000 square meters. It was the first large-scale characteristic commercial district in Hefei that focused on cultural creativity and integrated leisure, entertainment, dining, tourism, parent-child relationship, and sightseeing. The overall architectural style was mainly Hui style. There were Tianxian with a big stage, Huizhou Ancient Theater, Qixi Golden Magpie Bridge livehouse, Dadi Art Museum, Korea Street, etc. Here, one could enjoy the freedom of the market, but also gain a unique cultural perspective and social experience. - ** This Youle Street Block **: Located in the northwest corner of the second phase of the Hefei Software Park in the core area of the Hefei High-tech Zone, it is mainly composed of Building H5 in the park. He introduced the first store brands such as Ditano Baked Coffee Teahouse and Luo Ma Casserole. It is committed to building an international youth community in the science and technology venture park. It has the style of science and technology and the atmosphere of fireworks. After the "street opening", it will provide rich and diverse activities, exhibition and cultural output for young people in Hefei. The new stores catered to the "young" temperament and innovation, such as KFC building the first science and technology theme store in Anhui, Kawangka building a new concept flagship store, etc., and would also carry out various special activities to form a commercial IP with urban temperament. - ** Half Street **: It was the most complete commercial pedestrian street at the north gate of Mount Shu in Hefei City. It was less than 300 meters (283 meters) long. It perfectly merged the original ecology of Mount Shu with the bustling streets of the downtown area. It had an excellent ecological environment. Most of the shops were built in the Hui style. It was the only way to go from the bustling city to the Great Shu Mountain. It had the overall layout of half a mountain, half a river, and half a street. The overall atmosphere was rich in ancient charm, and it was easy for people to mistake it for a historical commercial street. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-09-06 19:35

Introduction and characteristics of deer

The Sika deer was a medium-sized deer in East Asia. It had a white patch on its forehead and white around its eyes, which made its appearance unique. It had long, curved antlers and a white belly that could be used for camouflage. Its body was brown with white spots, its legs were slender, its tail was short, its face was long, and its mouth and nose were black.(The meihua deer is a medium - sized species of deer found in East Asia. It has a white patch on its forehead and a white eye ring, giving it a distinctive appearance. It has long, curved antlers and a white underside, which it uses to camouflage itself. Its body is brown with white spots and its legs are long and thin. Its tail is short and its face is long with a black muzzle.) In addition, the English word for deer is "deer" or "spotted deer.""Little spotted deer, can you run the show for us?" (Little deer, can you host the show for us?) <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-09-06 19:35

How to take pictures of jade

The following methods can be used to take photos of jade: 1. ** Shooting Method ** - The "hands-on photo" was more ideal, which was to take the jade in the palm of the hand. As the background color of the palm was single, it was helpful for the autofocus and sensitivity capture of the mobile phone camera, which could reduce the situation of false focus. When shooting, the palm could be used to adjust the angle to capture the details. - If the phone had a macro mode (labeled as a small flower), it could be used to shoot to better show the details of the jade surface. If not, it could also be used in automatic mode. You can also place the jade in a fixed lighting environment, and then move the phone back a little to take a picture with the camera's 2X (2x magnification). 2. ** Light-related ** - Natural light (outdoor sunlight) was best, and light near the window was also fine. It is ideal to shoot close to the window, but it is necessary to note that some color-changing glass may affect the color temperature of the sunlight. It was more convincing to shoot in the morning with sufficient sunlight, except for sugar jade (the color of sugar jade was moist, and the red color was enhanced under the sun, which was not conducive to identification. It could be shot indoors, and the sugar flower and structure could be photographed under the sun). - When taking photos, don't face the light or the back light. Let the light shine from the side, so that the color and details of the jade can be more realistic. 3. ** Shooting angle ** - The finished jade, especially the seed material, should be shot from multiple angles, usually including the front, back, left and right sides, bottom and top, so that the 360-degree display without dead angle could be used to obtain more comprehensive information for accurate judgment. If you use professional equipment (such as Canon DSLR, macro lens, dual lights, etc.) to shoot: 1. ** Lighting ** - Backlight and one-way linear light can be used to show the water head (penetrability); side light and bright spot reflection can be used to show the polishing process (smoothness)(soft light box or sulfuric acid paper can be used to retain more details); to have both water head and polishing process, high-light spots can be used to show smooth reflection, and partial linear strong light can show penetrability. The lighting should be flexibly adjusted according to the quality. 2. ** Color precision and reproduction ** - If you use the Divine Bull 400W flash (soft light box), you can adjust the camera's color temperature to 5300K (the Divine Bull's output color temperature), and then fine-tune it later to ensure that the jade color is restored. 3. ** Selection of background ** - Most jades should use a dark background, such as dark gray, dark coffee, or dark green. The dark velvet background is better, so that the outline of the jade will not be blurred with the background, and there is no need to worry about the projection problem. 4. ** Method of composition ** - Try to use the center composition or diagonal composition for the product composition. The camera and the product should be at a 45-degree angle to shoot from above. It would be more comfortable to look at. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-09-06 19:35

What is the song that Zhao Xue and Wang Jie sang?

The song that Zhao Xueer and Wang Jie sang was called " Who understands the heart of a prodigal?" <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-09-06 19:34

Where did Ziyan go home?

Zi Yan returned home to the Ancient Void Dragon tribe's Ancient Dragon Island. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!

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2026-09-06 19:34

What to do before doing something?

What preparations should be made before doing something? <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-09-06 19:34

A good-looking female lead in a Feng Shui novel

The following are some of the female protagonists in Feng Shui novels: - She was the female lead, Yan Anluo, in "The Feng Shui Master Only Wants a Divorce." - The female protagonist in "The Rebirth of the Female Fortune Teller"(Reincarnated and returned with a gourd and special abilities. She was determined to clear the demons and monsters around her, send scumbags and scumbags flying, and rise to fame from then on). - Si Yuchen from "Superb Feng Shui Master" was involved in the story when the main character went to look for the True Dragon's spiritual energy. The main character even helped her solve the Feng Shui problems at home. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-09-06 19:34
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