Our germanium lenses are used in various high-performance optical systems, particularly in applications that involve infrared imaging systems, remote sensing, and thermal imaging systems.

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When drawing what you see under the microscope, follow the format shown below. It is important to include a figure label and a subject title above the image. The species name (and common name if there is one) and the magnification at which you were viewing the object should be written below the image. All relevant parts of the drawing should be labelled on the right side of the image using straight lines. Lines should not cross. Drawings should be done in pencil, while labels should be in pen or typed. Remember that total magnification is determined by multiplying the ocular x objective.

Germaniumtransmission vs temperature

The compound microscope is a useful tool for magnifying objects up to as much as 1000 times their normal size. Using the microscope takes lots of practice. Follow the procedures below both to get the best results and to avoid damaging the equipment.

*** Don't hoard slides! You can only view one at a time, so that's all you should be holding. Return it before getting another, and if you break it, tell your instructor so that it can be properly cleaned up and replaced! ***

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Germanium lenses are optical lenses fabricated from germanium (Ge) primarily due to its unique optical properties — particularly its high refractive index, thermal stability, and infrared transparency.

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Lattice Materials is exceptionally equipped to create optical components, and germanium lenses in particular, to precise optical specifications with any finishing you require.

The field of view is largest on the lowest power objective. When you switch to a higher power, the field of view closes in towards the center. You will see more of an object on low power. Therefore, it is best to find an object on low power, center it, and then switch to the next higher power and repeat.

Our production staff uses precision CNC curve generators to produce best-in-class germanium lenses for any of your requirements — from prototype requests through full production volumes.

At Lattice Materials, we custom manufacture germanium lenses with a well-defined and controlled process to ensure that they meet stringent performance requirements:

The depth of focus is greatest on the lowest power objective. Each time you switch to a higher power, the depth of focus is reduced. Therefore a smaller part of the specimen is in focus at higher power. Again, this makes it easier to find an object on low power, and then switch to higher power after it is in focus. A common exercise to demonstrate depth of focus involves laying three different colored threads one on top of the other. As the observer focuses down, first the top thread comes into focus, then the middle one, and finally the bottom one. On higer power objectives one may go out of focus as another comes into focus.

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Germanium has many advantages, making it a suitable material for fabricating spherical lenses and aspheric lenses for various applications in aerospace, defense, and infrared optics.

Do you have a custom requirement for germanium optical components? Send us your specific requirements, and our technical sales representatives will analyze what is needed to deliver ready-to-use components within your lead time.

Manufacturing custom germanium lenses for high-performance optical applications requires expertise in germanium optics, advanced equipment such as CNC curve generators, and highly controlled manufacturing processes.