Concave Lens Mirror For Concave Telescope Mirror

A concave lens mirror is an optical element that curve inward. It is used to diverge(spread out) light rays. They work by splitting parallel incident rays, causing the beams to bend away from the optical axis and spread out. This divergence creates virtual, magnified images that appear upright. Concave visual elements are helpful for applications where magnification and virtual images are needed, such as mirrors, eyewear, and microscopes.

 

Our company offers an unparalleled range of concave lenses and mirrors for unsurpassed control and manipulation of light. The mirrors have ultra-precise surface quality and optimized properties for different wavelength ranges. The coatings are well-enhanced, and every concave lens and mirror undergoes extensive metrology and performance testing to ensure it meets stringent specifications before shipping.

 

For premium concave mirrors at competitive prices, you can't beat the quality and value offered by our products. We provide a range of stock concave mirrors and full custom designs optimized for your specific applications. We strive for you to exceed your requirements. Contact us today to learn how our concave mirrors can help improve your optical systems and protect your investments!

 

Features

- Precise curvature

- High surface quality

- Suitable refractive index

- Rugged and durable

- Centered optics

- Suitable aperture

 

Parameters

Product name	Concave mirror
Material	Optical glass BK7 or custom
Surface quality	60/40, 40/20
Diameter	45mm or custom
Diameter tolerance	±0.1mm
Thickness	10mm or custom
Thickness tolerance	±0.1mm
Coating	Aluminum mirror or custom
Effective aperture	>90%

 

Spectrum Transmission Curve

 

Applications

Concave or converging mirrors provide a simple way to manipulate and focus radiation for measurement, microanalysis, optical instrumentation, and energy applications. Their ability to concentrate parallel rays gives them utility in fields ranging from solar energy to microscopy and telecommunications. Several critical applications include:

- Focusing light

- Optical mirrors

- Laser mirrors

- Solar energy

- Imaging

- Nondestructive testing

- Optical telecommunications

- Microscopy

 

When was the mirror invented?

Optical mirrors have been used for thousands of years and date back to ancient times. However, modern optical mirrors made of polished glass or metal date to the rise of optics as a science starting in the 17th century. Some key developments in optical mirrors include:

 

• Circa 2000 BC - Polished copper mirrors were used in ancient Egypt and Mesopotamia. These provided the earliest known manufactured mirrors, despite the poor optical quality.

 

• 1st century AD - Polished bronze mirrors were produced in China, though the optical resolution was still low. The earliest known telescopes using metal mirrors appeared in the 17th century.

 

• 1608 - Hans Lippershey, Jacob Metius, and Galilei independently invented the first telescopes using a convex objective lens and concave eyepiece mirror. This helped popularize the use of concave lens mirror in optics.

 

• 1687 - Isaac Newton's work on the law of reflection spurred interest in developing high-quality glass mirrors. Early glass mirrors using a tin-mercury amalgam backing had limited reflectance and deteriorated over time.

 

• 1835 - Justus Liebig developed an improved silver nitrate coating technique for glass mirrors. This yielded higher reflectance in the visible spectrum and more durable mirrors, enabling applications like astronomical telescopes.

 

• 1860s - Precision glass polishing techniques were developed to produce mirrors with reduced surface roughness and defects. This allowed for more giant, higher-quality mirrors for telescopes and microscopes.

 

• 1932 - Vacuum coating techniques were introduced, enabling the deposition of highly uniform mirror coatings like aluminum. This further improved reflectance, durability, and wavelength control in optical mirrors.

 

• 1960s - Advances in ceramic glasses, silicon carbide, and aluminum oxynitride extended the range of suitable mirror substrates to include more thermally and mechanically robust materials for high-energy laser applications.

 

• 1980s - "Superpolishing" and replication techniques were introduced to produce ultra-smooth mirror surfaces for applications like X-ray telescopes. Modern polishing can achieve near-perfect mirrors.

 

• 1990s onward - New technologies like photonic crystals, metamaterials, and guided-wave mirrors provide more tailored control over mirror properties. Mirrors can filter, focus, and steer specific wavelengths on an integrated chip.

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