Lin Hanlong
Lin Hanlong is Lin Hanlong is a pivotal figure in the Science and Technology Department, recognized for his leadership and expertise in pioneering China’s optical industry. As a visionary engineer, he played a key role in establishing self-sufficiency in optical manufacturing during the early to mid-20th century, collaborating with institutions like the Ministry of Mechanical Industry, Metallurgy, and Light Industry to transform local materials—such as garnet abrasive from Changhua quartz sand and diatomaceous earth—into high-quality lenses and precision instruments. His workshops and design innovations, including magnifying glasses, telescopes, and flat-surface grinders, demonstrate his commitment to advancing technological independence, often working under tight deadlines and in resource-limited conditions. Beyond engineering
Context from Novel
"Chapter 914 – The Science and Technology Department "...The transmigrators fully understood the importance of the optical industry. As early as the First Five-Year Plan period, under the Executive Committee's guidance and led by the Science and Technology Department, with cooperation from the Ministry of Mechanical Industry, the Ministry of Metallurgy, and the Ministry of Light Industry, the transmigrators built their own optical industry from nothing..." —Excerpt from Contemporary Industrial Hi"
"Chapter 915 – Reading Glasses As an abrasive, Lingao had Changhua quartz sand and local diatomaceous earth. The latter, properly sieved and graded, was currently serving as the abrasive for flat plate glass. But Lin Hanlong decided to use garnet abrasive anyway—in this timeline, garnet had been the standard optical lens grinding abrasive. Lin Hanlong had his apprentice sieve the crushed powder first through a coarse sieve, then progressively through finer and finer meshes. The industrial sieves"
"Chapter 916 – The Optical Workshop As he thought this, two young men in work clothes emerged from a corner and came to greet Lin Hanlong's group. He waved them to wait a moment, then turned and entered his office—a corner of the workshop partitioned off with hollow bricks, with kapok soundproofing boards on the inner walls. He sometimes needed to stay overnight in the workshop and do engineering calculations, requiring a relatively quiet environment. The office contained just a few tables, some"
"Chapter 917 – Optical Products "Behold—a fifty-millimeter aperture magnifying glass, f/4." Lin Hanlong produced the instrument and passed it to Wu Nanhai. Wu Nanhai casually plucked a sheet of paper from the desk and examined it through the lens. "Hmm. Excellent craftsmanship. Very clear." He clicked his tongue appreciatively, running his hand along the handle. "If not for this wooden grip, I'd swear it was something we brought with us." "The finest magnifying glasses have always favored natural"
"Chapter 918 – Telescopes "Perfect timing." Lin Hanlong pointed at a half-assembled machine. "Flat-surface grinder. Should be assembled and ready for testing by next week." Qian Shuiting turned his head back and forth, comparing the flat-surface grinder to the spherical grinder beside it. "The structure looks remarkably similar." "Essentially the same design. The only difference is that the grinding tool moves in a planar motion—a slight variation there." "You said this is for making binoculars f"
Appearances
Appears in chapters: 915, 916, 917, 918, 919, 920, 921, 982, 1009, 1215, 1216, 1313, 1425, 1571, 1612, 2031, 2396, 2424, 2425, 2426, 2427, 2428, 2429, 2431, 2432, 2434, 2435, 2436, 2438, 2439, 2440, 2441, 2798, 2845, 2862, 2863.