science

Optogan

Optogan is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Optogan rather than just read about it. In short: The Optogan group is a former producer of high-brightness LED lights based in St. Petersburg, Russia.

Key takeaways

Optogan belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Optogan to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Optogan from memory before moving on to harder problems.

Reference excerpt

The Optogan group is a former producer of high-brightness LED lights based in St. Petersburg, Russia. Optogan is also active in Finland and Germany. Founded in 2004 by three graduates of the Ioffe Physical-Technical Institute, Optogan is owned by various private and government investment funds.

History

Optogan was founded in 2004 in Espoo, Finland, by Maxim Odnoblyudov, Vladislav Bougrov, and Alexey Kovsh, graduates of the chair of Nobel Prize laureate Zhores Alferov. They have received several rounds of financing from various European venture capital investment funds. After the development stage, the company's research and development and pilot production line were expanded to the MST Factory site in Dortmund, Germany. In 2008, the Russian private equity group Onexim acquired the company. In 2009, Russian government investment funds Rusnano and RIK joined Onexim as investors to develop a full-scale production facility for HB LEDs in the Strelna free-economic zone near St. Petersburg, Russia.

Technology Optogan has developed LEDs with gallium nitride. The Optogan chain of technologies includes semiconductor wafers by metal-organic chemical vapor deposition technique and LED chip design, packaging (including phosphor coating), and lens molding. The multichip LEDs were mounted on a printed circuit board. Optogan technologies have a patented LED epilayer structure with enhanced light generation capability, with the f-PowerTM chip being able to distribute over 300 A/cm2. The LEDs can output as high as 110 lm/W. Optogan intellectual property and technologies are covered by 35 granted and pending patents.

References

External links Official website (in Russian) Official website (in English)

Worked examples

Example 1 — a first encounter with Optogan

Start with the simplest possible case. Write down what Optogan claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Optogan before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Optogan ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Optogan

In research: Optogan appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Optogan in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Optogan is common in secondary-school and first-year university syllabi. It links to neighbouring topics Companies based in Saint Petersburg, Lighting brands, Nanotechnology companies, so understanding it makes those chapters shorter.
In everyday life: Look for Optogan outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Optogan in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Optogan means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Optogan out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Optogan in simple terms?

The Optogan group is a former producer of high-brightness LED lights based in St. Petersburg, Russia.

Why does Optogan matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Optogan?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Optogan.