PRODUCT

제품소개Prisms

Prisms

Prisms
Lenses
Windows
Mirrors

SPHERICAL LENSES

PLANO/CONVEX, PLANO/CONCAVE

Plano/Convex-Spherical lenses have a positive focal length and converge the incident light. This type of lens forms both real and virtual images. Real image-focused, Virtual Image-magnified.
Plano/Concave-Spherical lenses have a negative focal length and diverge incident light, this forms a virtual image seen through the lens. MOS has many standard lenses in stock or Lenses can be designed at customer’s requirements.
Both sides can be coated with a MOS high efficiency narrowband, anti-reflective coating.

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RIGHT ANGLE PRISMS

Right Angle Prisms are well suited for beam deviation and retro-reflection. They are often preferable to plane mirrors because they are easier to mount and align. High throughput is attained when the hypotenuse is used in total internal reflection (TIR), and the entrance and exit surfaces are anti-reflection coated. An incident beam normal to the entrance surface is reflected at a 90。angle. Images are inverted as illustrated in the drawing below. The hypotenuse may also be used in external reflection, in which case it is coated with a metal or dielectric, high reflectance coating. Right angle prisms may also be used for retro-reflection. A beam entering perpendicular
to the hypotenuse is reflected by the legs and emerges parallel to itself. If it is desirable to use either the hypotenuse or the legs in internal reflection mode, but field angle requirements exceed TIR acceptance limits, or if the environment in which the prism is to be used does not allow the hypotenuse to be kept sufficiently clean for TIR, a metal or dielectric coating can be applied to the hypotenuse.

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CORNER CUBE RETRO-REFLECTORS

Corner Cube Retro-Reflectors operate on the principle of total internal reflection (TIR). A beam entering the effective aperture is reflected by the three roof surfaces and emerges from the entrance/exit surface parallel to itself. This property is independent of the orientation of the retro-reflector within acceptance angle limitations. For applications in which either the acceptance angle for TIR is exceeded, or the reflecting surfaces cannot be applied sufficiently clean for TIR, a metal or dielectric coating can be applied to the reflecting surfaces.

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LITTROW PRISMS & PELLIN BROCA PRISMS

Pellin Broca prisms are used to disperse beams after harmonic generators and Raman shifters. MOS Pellin Broca prisms have been designed to provide low loss for P-polarization by changing the classical 75。angle to an angle between 77。and 88。, assuring beam incidence and exit almost exactly at the Brewster angle. Crystal quartz Pellin Broca prisms are recommended as dispersing elements for intense UV when other methods fail. The smaller Suprasil 1 PLBC-5.0-79.5-SS prisms have been specifically designed for separation of short UV from the small beams of frequency doubled excimer pumped dye lasers

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PORRO PRISM

Porro Prisms operate on the priciple of total internal reflection (TIR). A beam entering perpendicular to the entrance / exit surface is reflected by the two roof surfaces and emerges parallel to itself. For applications in which either the acceptance angle for TIR is exceeded, or the reflecting surfaces cannot be kept sufficiently clean for TIR, a metal or dielectric coating can be applied to the reflecting surfaces.

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PENTA PRISM

Penta Prisms deviate a beam by 90。without inverting or reversing the image. These prisms also have the property of constant deviation, which means that the 90。deviation angle applies to all rays transmitted by the effective aperture, regardless of their angle with respect to the optical axis. Penta prisms are thus very useful in applications where prism orientation cannot be precisely controlled.
Due to the geometry of penta prisms, the reflecting surfaces due not utilize total internal reflection and must be coated with a metal or dielectric coating.

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DOVE PRISM

Dove Prisms are used as image rotators in a variety of optomechanical systems. They are a truncated form of the right angle prism, and use total internal reflection (TIR) to produce an inverted image which emerges from the exit surface without deviation. As the prism is rotated about its optical axis, the image will rotate at twice the angular rate of the prism. Since the length of the prism is approximately four times the height, the incident light must be parallel or collimated.
For applications in which the hypotenuse cannot be kept sufficiently clean for TIR, a metal or dielectric coating can be applied to the hypotenuse.

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EQUILATERAL DISPERSING PRISMS & ISOSCELES BREWSTER PRISMS

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