"The metrology of old time and space is divided into ten categories. I think the mechanical industry relies on two categories: 'geometric quantity metrology' and 'mechanical metrology'. Among them, the geometric quantity metrology relies heavily on your optical equipment. For example, the Michelson interferometer, after all, optical The measurement method is highly accurate!”
Only then did Lin Hanlong understand why Yuan Haowen was so enthusiastic about him. Then he continued the topic and said: "The Michelson interferometer is not too difficult to make, but I don't know anything about the 'measurement' you are talking about. I am afraid that you will not be able to use it when I make it." Yuan Haowen saw that Lin Hanlong had taken the bait and was overjoyed: "It doesn't matter. I'm responsible for the machining, and I also have interferometer data for measurement from the old time and space, this is a completely new field."
The two of them talked about metrology issues in Hong Kong, especially on some issues regarding measuring tools and precision tools. It can be said that the two sides met each other late. The conversation lasted until late into the night.
It was already midnight when Lin Hanlong returned home from Yuan Haowen. Cai Junjie sent Master to the door of the apartment and complained in a low voice: "Master, I just came back from a business trip for several days, and I didn't come home until so late!"
"You little monkey, it's none of your business!" Lin Hanlong was in a good mood and rewarded his apprentice with a chestnut, "You're not my wife!"
"Well, although I'm not your wife, the ladies have some opinions..."
"If you have an opinion, just give it an opinion. If you have an opinion, you can't live well?" Lin Hanlong waved his hand, "Stop blabbering and go back quickly."
"What time will I pick you up tomorrow?"
"Seven o'clock in the morning."
"It is too early……"
"roll!"
Cai Junjie wanted to persuade him again, but when he thought about his master's temper, he simply stopped talking and left with the coachman.
When Lin Hanlong returned home, the light in the foyer was still on and the room was already silent. Lin Guanyu used to always wait for him in the foyer, but he didn't come home every day, and sometimes he would let her wait on a chair all night. Lin Hanlong felt sorry and stipulated that there would be no need to wait for him to come home after ten o'clock in the evening, and the family could do what they wanted.
He looked towards the inner corridor. The door to the room was locked and it was pitch dark. Everyone is asleep. Recently, my daughter sleeps much more peacefully at night and doesn’t make noises at night anymore. Lin Hanlong wanted to see his daughter, but when he thought that she and Sonia were both asleep, he would inevitably disturb her if he went in, so he decided not to go.
After washing up, he rested in his studio - because he came home at irregular times, and no one would like to have someone climb into bed while they were sleeping soundly in the middle of the night. So when the house got bigger, he built a studio for himself and put a small bed in it. If you come back late, take a rest here.
He slept until daylight. When Lin Hanlong looked at his watch, it was already half past six. Get up quickly and wash up. Lin Guanyu has already prepared breakfast and is waiting for him to eat.
"Still asleep?" Lin Hanlong asked.
"Well, I'm still asleep." Lin Guanyu whispered, "There was another commotion at dawn."
"That's right," Lin Hanlong said, "I didn't hear anything."
"Of course you didn't hear anything." Lin Guanyu said with a slight complaint, "You were snoring so much that you could hear it outside the door." Then she started to serve him porridge.
"Is it that loud?" Lin Hanlong didn't believe it, "Then I have to go to the hospital to have a look."
"If you snore, you should see a doctor. The doctor will not laugh at you."
"You don't understand." Lin Hanlong was slightly regretful. If it were Sonia, she would definitely explore why snoring requires seeing a doctor, and then initiate a discussion about breathing and human body structure.
Lin Guanyu is actually very similar to some of his elder relatives. He has a gentle temper and cares about his family meticulously, but he has no education. She always relies on the experience accumulated over the years and the teachings from her previous life. Although I felt very warm and comfortable, I couldn't communicate in depth.
"I don't understand, I don't understand, go find someone who understands!" Lin Guanyu became a little angry, placed a basket of steamed dumplings heavily on the table, turned around and went back to the kitchen.
Lin Hanlong grabbed Lin Guanyu's waist and said with a smile (100,000 words deleted below)... Then he stood up calmly, straightened his clothes, and ordered: "Don't leave me food tonight, I guess I have some work to do." .”
Lin Guanyu nodded silently, touched her hair again, and asked, "Is my hair not messy?"
Lin Hanlong touched her head and said with a smile: "Not a trace of chaos."
After that, he picked up his satchel and left the door. But he saw Cai Junjie and the driver already waiting outside. When Cai Junjie saw Lin Hanlong coming out, he rushed to greet him and said, "Master, it's almost half past seven..."
"Didn't you say yesterday that it would be too early to pick you up at seven o'clock?"
Cai Junjie was speechless, thinking it was all your fault! But he did not dare to refute and could only complain: "But the pass I applied for for the coachman is only valid until half past seven..."
"Then let's hurry up." Lin Hanlong was in a good mood. He got on the Venus Zero and stepped on the footbell, "Let's go!"
Lin Hanlong went to the optical factory and inspected the workshop as usual, checking the production records of the night shift. I also randomly inspected a few products produced by the night shift last night. The authenticity rate is increasing every month, and our industrial upgrading is still effective. he thinks.
"Has the prototype of the projection imager been produced?" he asked Cai Shengjie.
"Five units have been made, and several more are being assembled and tested."
"Tell them to hurry up, the museum is waiting for use." Lin Hanlong thought helplessly that since Sonia went to work in the museum, the remote exploration team often came to "open the back door" when applying for equipment. "When it is done, you can test it yourself."
"Yes." Cai Shengjie knew that he valued the "user experience" of these devices.
A projection plotter is an optical instrument used by artists to assist artists in painting. The use of lenses creates an optical overprint of the object seen and the surface on which the artist paints. The artist can see both the scene and the canvas at the same time, just like a double exposure in photography. This allows artists to translate key points from the scene directly onto the canvas, which can aid in accurate rendering of perspective. Artists can even trace the outlines of objects in the scene.
This device was only patented in 1806, but Kepler clearly described such a device in 1611 in his book "The Optics of Refraction".
In fact, those painters who were famous for their realism from the 16th and 17th centuries probably did not all rely on their craftsmanship. According to research, many great painters, including Caravaggio, probably did not work with bare hands, but with the aid of optical equipment. Artists at that time already knew that they could use the principle of small hole imaging or the camera obscura to directly use lens projection to assist in painting.
If you use the small hole imaging principle, you will need a lot of space, and you need to try to cover the bright house or set up a tent. Later, when technology improved and lenses were used, the entire camera obscura became smaller, so small that a servant could carry it away. Of course, the camera obscura developed later and replaced the projection screen or frosted glass with a negative, and it became the earliest camera. This camera obscura has a specially developed model that can be used to view distant scenery, making it convenient for field inspections and surveyors. There are also designs where the projection can directly overlap the drawing paper, so that the painter can directly compare the scenery with his own painting, which is very convenient and accurate. Natural history painters in the 19th and 20th centuries used this device extensively to accurately depict living creatures.
There are similar designs on microscopes, and biologists who used them to draw microorganisms in the 19th century generally relied on this. For example, the structure of various cells, for example, the appearance of various bacteria. This kind of microscopic scene is very difficult to achieve using photography. The microscope displays a virtual image, which is inherently difficult to image. If you manage to make it, the resolution of the photo is very limited. In contrast, humans can observe detailed structures under a microscope for a long time, figure out their specific structures and draw them directly, and the effect is better.
It is conceivable that since this thing is so useful, it has naturally been put on the agenda of the optical factory early. It is not only needed for drawing museum paintings, but also for health departments to train qualified health and epidemic prevention personnel.
Fortunately, this thing does not have many technical difficulties, and it is not difficult for optical equipment factories that are already able to mass-produce telescopes, spectacle lenses, and other equipment.
Lin Hanlong was just thinking about the production of precision measuring tools that he had discussed with Yuan Haowen yesterday when Cai Junjie suddenly came in.
"Chief, Wang Yuanlao from Nanyang Company is here. He said he wants to talk to you."
"Oh? Is it that Elder Wang who came yesterday?"
"Yes, that's him."
"Invite him to come to my office."
Lin Hanlong was not too interested in Nanyang Company's affairs, but since the other party was so eager to see him, there must be something important.
A few minutes later, Wang Kai arrived at Lin Hanlong's office.
Strictly speaking, not counting meetings or other occasions, this was the first time the two met in private. After the two parties greeted each other and sat down, Lin Hanlong asked casually: "What do you want from me?"
Wang Kai was somewhat embarrassed - to be honest, he didn't know how to say this.
After an awkward silence for a moment, Wang Kai mustered up the courage:
"Let me introduce myself first. I am the development manager of Nanyang Company."
Lin Hanlong nodded to show that he heard it.
"I came to visit you today..." Wang Kai unconsciously used honorifics, "There is something about Sonia... who is your life secretary..."
"What happened?!" A huge question mark appeared on Lin Hanlong's head.
"That's right." Wang Kai was afraid of causing any misunderstanding, and immediately said that he was about to lead the Southeast Asia expedition plan, and the expedition team needed an experienced naturalist. That’s why I thought of Sonia.
"This inspection is very important, so I hope Sonia can also participate in this inspection."
Lin Hanlong's originally nervous face relaxed. Wang Kai felt slightly relaxed.
"How big is the scope of your inspection this time? What area is it roughly? What is the purpose of the inspection?" Lin Hanlong asked with interest.
(End of chapter)
