Thursday, June 19, 2025

Dielectric HR Mirror

 Dielectric Mirror Design

Reflective film from the coating material can generally be divided into two categories; one is the reflective metal film, one is all dielectric reflective film.

 

Media reflection film using the principle of multi-beam interference, which, contrary to the media anti-reflective film, can significantly improve the light in the air glass interface reflectivity. By alternately plating high and low refractive index multilayer films on the surface of the lens, the synthetic amplitude of the reflected light can be increased, and the reflectivity of the reflective film can be more than 99.9% of specially optimized design. In contrast, the reflectivity of the reflective metal film is only 97%.

 

At the same time, the dielectric film in the air stability and wear resistance is better than the metal film.

 

Plane mirrors, also known as front surface mirrors or first surface mirrors, are used in beam steering or reflecting applications. These optical mirrors are essential for precise light manipulation in various optical systems.

 

We stock four grades of plane front surface mirrors with a range of up to six coatings to meet applications in the UV, Visible, NIR and FIR applications.

 

Precision λ/10 front surface mirrors: They are manufactured from borosilicate material. Using LEGB borosilicate or equivalent ensures the mirror has low coefficient thermal expansion properties. These mirrors are used in high demanding beam steering and reflection applications such as imaging and astronomy.  We stock precision λ/10 front surface mirrors coated for visible wavelength with aluminum/SiO₂ and the high reflective dielectric covered 99% mirror coating for high energy laser applications.

 

Precision λ/4 front surface optical mirrors: Ours is not as expensive as the λ/10 versions. Used in many scientific instruments where quality is important but the use of the λ/10 versions cannot be justified. We stock precision λ/4 front surface mirrors coated for UV, visible, NIR and IR applications. For UV applications as small as 180nm our quality ¼ wave mirrors are covered with aluminum/ Mgf². For visible applications, our λ/4 front surface mirrors are coated with aluminum/SiO₂, and high reflective dielectric coated 99% mirror coating. For near infrared applications, we have a range of ¼ wave mirrors coated with dielectric 98% that works efficiently to YAG wavelength of 1064nm. Our range of λ/4 front surface mirrors for applications in NIR and FIR mirrors are covered with protected silver that performs well in the visible and up to 2000nm in the NIR, and our protected gold painted quality ¼ wave mirrors work from 750nm NIR into far infrared applications.

 

Guaranteed 1λ over 25mm front surface mirrors: Our range of 1λ over 25mm front surface mirrors are less expensive than a ¼ wave and 10th wave mirrors but still achieve reasonable results in demanding applications. These cost effective one wave mirrors are available in UV/ aluminum, enhanced aluminum and dielectric 99% coating for use in the visible. These one wave mirrors are typically are usually used in more demanding imaging applications where image quality is important. Our range of 1 wave front surface mirror (first surface mirrors) are selected for guaranteed flatness of 1 wave over 25mm aperture and individually tested to ensure they meet specification. They are manufactured from standard pre-coated sheet material. We stock this range from UV through to infra-red to fit most scientific instrumentation applications. Our pre-coated sheets of mirror substrates are shared as 145x100mm plates.

 

General purpose front surface mirrors: Our general-purpose grade of front surface plane mirrors are manufactured from standard coated sheet material. These general purpose grades of first surface mirrors are available with a multitude of coatings for an extensive range of the scientific instrument and lighting applications. Our stock range of front surface plane mirrors are made from high-quality float glass and are available in thicknesses of 1mm, 3mm, and 6mm thick as standard.

 

Stock general purpose grade mirrors can also be edges to smaller diameters and other shapes at short notice. These mirrors are stocked in large sheets so larger sizes up to 1000mm square are available for projector applications.

 

Our stock ranges of front surface / first surface mirrors are all available in a variety of coatings to meet most applications:

 

Enhanced aluminum 94%R for visible applications.

99.9% dielectric for laser use in visible applications.

UV aluminum for UV applications down to 180nm.

98.5% dielectric for laser use in the NIR applications.

Ion plated silver for NIR-2000nm applications.

Protected gold for 750nm to remote infra-red applications.

 

Contact our technical sales team for further advice about dielectric mirror glass design and assistance.

 

As an optical assembly manufacturing company, we will do our best to meet all the needs of customers.

 

 

 


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Penta Prism

 Penta Prisms are used to define right angles in optical systems. Penta Prisms, which provide right handed images, feature a ray deviation of 90°. Penta Prisms are five-sided prisms and unaffected by slight movements. Edmund Optics offers a variety of Penta Prisms for optimal performance in the Ultraviolet (UV), Visible, or Infrared (IR) spectrums.

 

The penta prism will neither invert nor reverse the image. Penta prisms are extremely useful in alignment systems as they define a right angle very precisely and independently of angle of incidence. Rays entering one face emerge from the adjacent face at precisely 90 deg after they have undergone two reflections inside the prism for a total of 270 deg. The penta prism acts as a turning mirror which is insensitive to alignment.

 

Penta prism is often used in Plumb Level, Surveying, Alignment, Range finding and Optical Tooling

 

Factory Standard – Contact us for manufacturing limit or custom specifications

 

Material: BK7 Grade A optical glass, Corning Fused Silica 7980,  JGS1, JGS2

Dimension Tolerance: +/-0.1mm

90 Deviation Tolerance:

 

Precision series: up to 2 arc seconds

 

Flatness: Precision series: 1/4  at 632.8 nm

Reflectivity: R > 95% per face from 630 to 680 nm

Surface Quality: 60-40 scratch and dig

Coating: On request

Protective Bevel available

 

Hyp design is a premium full-service photonics supplier. Our manufacturing capabilities span across the spectrum. From UV, VIS, to IR, we fabricate custom optical components to system assemblies that meet unique and specialized applications.

 


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Dove Prism

 Where Can I Buy a Glass Prism?

Dove prism are used as reflective prism inverting the image. Dove prism is shaped from a truncated right-angle prism. Normally, dove prisms are used in the parallel optical path based on critical angle principle to meet total internal reflection with limited FOV.

 

A beam of light entering one of the sloped faces of the prism undergoes total internal reflection from the inside of the longest (bottom) face and emerges from the opposite sloped face. Images passing through the prism are flipped, and because only one reflection takes place, the image is inverted but not laterally transposed.

 

A beam of light entering the sloped faces undergoes total internal reflection from the bottom surface, and emerges from the opposite sloped face. Also interestingly whtn dove prisms optical are rotated along longitudinal axis, the image rotates at twice the rate of the prism which have applications in fields such as interferometry, astronomy, and pattern recognition. Dove prisms can be also used as right angle prisms with sloped faces HR coated.

 

Hyperion Optics supplies standard and custom made dove prisms according to your requirement.

 

If you want to buy glass prism, please contact us.

 

With over 12+ years of optical design manufacturing and fabrication experience, Hyperion Optics can deliver an optimized lens solution with guaranteed satisfactory results for your unique application. 

 


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Corner Cube Retroreflectors

 Corner Cube Retroreflectors

Corner cube prism is total reflecting prism formed by 3 perpendicular surfaces, where the incident light angle does not influence the final emerging light angle but reflected by 180°, it offers excellent parallelism between the incident and exit beams.

 

Hyperion Optics supplies both corner cube in mount or without mount, our precision corner cube retroreflectors have been used for Laser ranging, positioning and guidance, laser communication, optical transformation.

 

Our typical production accuracy is beam deviation < 5 arc sec in diameter within 2 inches.

 

With over 12+ years of optical assembly manufacturing and fabrication experience, Hyperion Optics can deliver an optimized lens solution with guaranteed satisfactory results for your unique application.

 


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