Huang Yaomin answered the phone. It turned out to be Hong Huangnan calling, saying that he had something important to discuss with him.
"Lao Hong, aren't you in Guangzhou? Why did you come back again? Have you obtained the approval for the Guangzhou horse-drawn carriage 4S store project?"
"Approval is not something that can be easily obtained. The problem is that I am only given the approval but not the money. What do they think I am? A kid who wants to make money?!"
"Hahaha, I know you lost a lot of money at that 4S store in Lingao!"
Huang Yaomin thought to himself that you are so ambitious. Ever since the Lingao Vehicle Factory launched the rickshaw sales, Li Chiqi and the others started a chain of rickshaw maintenance and repair shops. Why don't you participate in this project? Although it looks crude, it is
Make money!
"Isn't that right? I've been criticized by many senators just because of this matter. It seems that I can't get enough of it in the Senate." Hong Huangnan talked about bitterness for a while.
"Enough talking, you didn't make a special trip to Lingao to make a complaint call to me, right?"
"Hehe, then I'll get right to the point." Hong Huangnan laughed a few times. Naturally, he had official business when he returned to Lingao, but he was mainly looking for Huang Yaoming because of store No. 82 and Wanzi Pavilion.
"...take some product photos, I'm going to make a product brochure..."
"This is easy. What do you want to take a photo of? Where is the model?"
"I will treat you to dinner tomorrow night, and we will discuss it in detail at the dinner table." Elder Hong did not want to say more on the phone. "I will send a car to pick you up."
Huang Yaomin finished taking a set of photos for the maid, and it was already evening. After returning home and having dinner, Huang Yuanlao returned to his study, turned on his computer and posted on BBS "The optical department may be able to copy lenses from the old time and space."
At present, Lin Hanlong's optical factory cannot manufacture lenses. Although the wet cameras currently used in the photo studio are manufactured by this time and space, the lenses used are still inventory brought from another time and space - and are currently used by powerful departments and propaganda media.
The same camera.
The BBS is now sparsely populated, and there has been no post for ten and a half months. The main reason why it is retained is that some technical people need it as a platform for face-to-face communication. Moreover, there is no time limit for the mode of posting and replying, which can be very good.
Make use of your free time.
Therefore, after the IT department reduced most of the resources originally required to set up the BBS, it still retained a lightweight message board system that consumes very few resources.
He didn't expect to get an answer soon, because most of the veteran technicians would continue working after eating and would only come to take a look when they had free time.
Unexpectedly, within half an hour, Xu Qi from the chemistry laboratory responded:
"I feel that as long as the design does not involve special glass or multiple lenses, it is almost possible. After all, developing mathematical calculations does not need to be done repeatedly. In fact, most of the lenses are designed and produced based on the large and medium format lenses from World War II and before World War II. After all,
The use of special glass and coatings in modern design is a
It is too high to cross the threshold. However, Tiansai and Double Gaussian structures with fewer lenses and mature structures do not have many problems in terms of productivity. These relatively newer structures are relatively easy to implement. However, most of them require further preparation.
The large photo studio needs to be redesigned, but with the help of software, it is not particularly troublesome.”
As for coating, the domestic coating machine in this time and space is also very easy to use and not expensive. But obviously no one on the holy ship brought one with them. In fact, even if they did, it would be useless. There are no high-purity materials for evaporation consumables.
.As for the technology tree of the first-generation coating machine, it is stuck in the realization and maintenance of high vacuum, which is another problem that has been staring at for a long time. As for the coating design, there seem to be few optical and mechanical institutes among the 500 waste.
I am a brother who came from an employer. Although I have sold a lot of products, I have only tried to make simple single-layer metal films by myself. It is extremely difficult to open the technology tree of thin film optics! By the way, in my impression, in the early days
There is a method of acid etching to form a thin corrosion layer on the glass surface to increase the reflection. This method should be possible in Lingao, but I have never seen the actual effect.
"Forget about coating, multi-element lenses are enough." At this time, Li Chiqi also joined the discussion.
"Well, eight air surfaces without coating is the upper limit that can actually be used. Fortunately, there are a bunch of structures available under this condition."
"Can the manual lens structure be copied directly? No need to redesign it?"
"Yes, as long as you have the right glass brand and the image field distance matches, you can just produce it." Lin Hanlong also expressed his opinion.
Eight air planes? Although Huang Yaomin is not an optics student, he knows that it is enough to make a multi-element lens. He decided to search for more information and found a super article like "Structural Performance and Selection of Large Format Lenses"
Long article. He read the structural introduction of several large-format camera lenses and found that structural lenses were more suitable for Lingao, so he copied these paragraphs:
The dagor structure designed in 1892 can be said to be the beginning of modern optics... The Dagor lens adopts a 6-element two-group structure and is also a symmetrical positive lens. It can be regarded as a derivative of the Haipu Gang structure. Due to the adoption of
With the technology of cemented lenses, a lens that is difficult to process can be divided into several parts and borne by several lenses respectively. Therefore, this lens is the first design that can be widely popularized. It is also because the lens group composed of multiple lenses can use different lenses.
The glass properties are updated
For good dispersion correction, the Dagor lens structure is actually a structure between the wide-angle structure and the standard lens structure. There is a certain conflict between the characteristics of the wide-angle lens inherited from Haipu Gang and the multi-lens correction itself. Most of the finished products
Dagor lenses are all between 60-80 degrees, but because it can correct several basic advanced phase differences very well, the aperture can be made larger than previous lenses. The general limit is 8, so this type of structure
Most of the lenses are 8...
When the Dagor lens first appeared, there was no coating process. This structure was designed to avoid the interface reflection effect caused by too many air surfaces. There were only four air surfaces, and the light transmittance was very high.
He posted the above text on the forum, looking forward to good news from the optical department, and then turned off the phone and fell asleep.
The first practical popular camera: Who invented the Flag wet plate camera? There is no historical conclusion yet. Today we only do some research based on the "Daguerreography method" mentioned in someone's notes.
Speculation. However, there is a large amount of data recorded on the advent of the Empire's first camera lens. To this day, when we see these data, we have to admire the scientific veterans of the Empire's optical industry, their wisdom, and their
To this day, I am afraid no one has surpassed their achievements, especially the Tiansai lens they designed themselves. What kind of talent can inspire this kind of inspiration to design this optical lens with extraordinary details, which won the Eagle Eye at the time.
Due to its simple structure and relatively low cost, it is still widely used today. To put it bluntly, it was the emergence of the Tiansai lens that made the popularization of photography inevitable.
————"History of the Development of Senate Cameras"
Huang Yuanlao got up early the next day. Today is the day of the seven-day trial operation. For this reason, he distributed more than 200 free photography coupons and 1,000 visiting coupons to potential consumer groups in Lingao through various channels.
Of course, it is not mandatory whether you come or not, the main thing is to see how many people in this group will respond.
Although it is not mandatory, considering the human nature of "watching the excitement", there will definitely be many people coming during the trial opening period. Therefore, the number of visitors and photography is limited, and the number of people is limited per day. Huang Yuanlao was still worried, so he specially asked Lin
The high police station sent a team of security police to the scene to maintain order.
At this moment, he was wandering around the hall, looking at the queue that was gradually forming outside. Today is the half-day holiday in the middle of the month, so there are so many people coming! And many of them are families supporting the elderly and young. It seems that they are just here to watch the excitement.
Most of the people.
The latest chapter of this novel is first released, please go and read it!
However, if there really are a lot of customers for shooting on the first day, this newly-launched photo studio will probably be in a hurry. After all, wet plate photography has many procedures and takes a long time to fix. He has tested the whole process and it takes at least one person to do the photography.
Ten minutes. If it is a multi-person photography such as a family portrait, it will take more than ten minutes just to adjust the posture and guide the expression. If everything goes well, it will take about twenty minutes to complete. For children, it will take longer.
Therefore, he limited it to 40 coupons on holidays and 30 coupons on weekdays. Two camera positions were used at the same time. The number of camera positions and personnel would be increased as appropriate based on the situation after the trial operation.
"It depends on today's situation." Huang Yuanlao looked at the business hall that he had carefully designed and arranged. From the appearance of the floor tiles to the color of the walls, the green plants placed, the style of the furniture... all the way to the lighting scheme at the top, it was all his work
I chose it myself, so it looks more or less like the charm of a TV studio. Wandering there, Huang Yaoming felt familiar.
The staff of the photo studio had already taken their places and were waiting seriously. Huang Yaomin glanced at it and found that Chen Shixin, who was always the most active, was not there. He couldn't help but frowned and asked: "Where is Chen Shixin?"
"He has a public holiday today." Lao Zhang responded hurriedly.
Lao Zhang was the first photographer he trained himself. He was a fellow painter with Chen Shixin's father, and he was also a color painting craftsman. Because of his painting skills, he was more sensitive to patterns and shapes. He was also his proud disciple.
Such a strong combatant actually took a day off today. Huang Yaomin secretly cursed himself for not thinking carefully. Today is a public holiday, and it is the head of the group. There must be the most people, so he should be given a day off. Lao Zhang is certainly reliable, and the others
It's a bit...
Just as he was thinking about this, he suddenly saw Chen Shixin through the glass display window among the growing crowd of spectators outside. He was wearing a brand-new high-end linen "cadre uniform" today, his hair was combed shiny, and he was chatting with two young people.