Porro Prism A refracting optical prism used in optical instruments to modify image orientation, In use, the light enters through the largest rectangular plane in the prism, passes through two total reflections of the inclined plane, and then penetrates the original plane of incidence, Because the light comes in and out normally, the prism does not disperse. But the image that passes through Porro prism will be flipped 180 degrees, and it will travel in the direction it entered, which means it will travel 180 degrees.
Photonchina has been focusing on dove prism manufacture for more than decades in order to meet demands of customers worldwide in applications ranging from image displaying to fiber communications.
Dove prism is a type of reflective prism which is used to invert an image. These prisms are shaped from a truncated right-angle prism. 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's handedness is changed to the opposite sense.
If you look through the prism and rotate it around a longitudinal axis, the image rotates through twice the angle through which the dove prism itself rotates. For optimal performance, you may use dove prisms with collimated light. The top surface of each dove prism is ground and the longest length features an unbeveled sharp edge.
Dove Prisms are offered uncoated, with anti-reflection coated diagonal faces, or with aluminized diagonal faces. Aluminized dove prisms feature a protected aluminum coating with black Krylon paint on the diagonal faces and are ideal for displaced retroreflection. They provide a u-turn for incident laser beam light.
We will also do according to the specifications such as size, structure, material, surface treatment and so on that the customers required. We supply them with good quality and low price. Please contact us to know details. Besides, there are a large volume of optical components in various shapes and sizes in stock to facilitate quick deliveries.
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Dove prism is a kind of reflection prism used for image reflection.Dove prisms are formed by truncated rectangular prisms.A beam of light enters one of the slanted faces of the prism, fully reflects from inside the longest (bottom) face, and then exits from the opposite slanted face.The image through the prism is flipped, and since only one reflection occurs, the handedness of the image is reversed.Dove prisms have an interesting property that when they rotate along the vertical axis, the transmitted image rotates twice as fast as the prism.It is very important that applications use parallel or collimating beams and keep the large square reflector very clean.Another application is as an inverse.
Dove Prism
Specifications
Material BK7, UV Fused Silica, Sapphire, ZnSe, Caf2, Si, Ge, etc.
Size 2mm-300mm
Size tolerance +/-0.02mm or customer request
Clear Aperture 90%
S/D 60-40 40-20 20/10 10/5
Flatness 1/10lambda at 632.80nm
Chamfer 0.25mmx45
Angle tolerance
Prisms
Optical Components
PARAMETER:
BK7 Glass Dove Prism have an unusual and very interesting characteristic , if you look through the prism and rotate it around a longitudinal axis, the image rotates through twice the angle through which the dove prism itself rotates. For optimal peformance, use dove prisms with collimated light.
Specification
Material: Flint glass, UV fused silica, Infrared fused silica, CaF2, Ge, ZnSe, Si etc.
Dimension: 4mm-- 100mm
Angle tolerance: 30" --3'
Surface accuracy: lambda/10--1 lambda
Surface quality: 60/40
Clear Aperture: 90%
Coating: custom design
Besides, there are a large volume of stock optical components in various shapes and sizes to facilitate quick deliveries.
Wedge prism has plane inclined surfaces. It deflects light toward its thicker portion. It can be used individually to deflect a beam to a special angle. Two wedge prisms work together can assembly an anamorphic prism to correct the elliptical shape of laser beam. The wedge prism is ideal for laser beam steering applications. By combining two wedge prisms which can be rotate individually, we can direct the input beam to anywhere within the cone angle �¸d, where �¸d is 4x the specified angular deviation of one wedge
Wedge Prism
Specifications
Material BK7, UV Fused Silica, or customer request.
Size 1mm-600mm
Size tolerance +/-0.02mm or customer request
Clear Aperture 90%
S/D 60-40 40-20 20/10 10/5
Flatness 1/10lambda at 632.80nm
Chamfer 0.25mmx45
Wedge Angle tolerance
Optical Components
Fused Silica Wedge Prism
PARAMETER:
The wedge prism is a prism with a shallow angle between its input and output surfaces. This angle is usually 3 degrees or less. Refraction at the surfaces causes the prism to deflect light by a fixed angle. When viewing a scene through such a prism, objects will appear to be offset by an amount that varies with their distance from the prism.
Specification
Material BK7 glass / Fused silica
Surface Flatness: < λ / 10 @ 633nm ~λ/4@633nm
Surface Quality: 60/40, 40/20, 20/10, 10/5 (both sides)
Dimension Tolerance:
Melting point 151-154 C(lit.)
Boiling point 265 C100 mm Hg(lit.)
Density 1,36 g/cm3
vapor density 5 (vs air)
vapor pressure 1 mm Hg ( 159.5 C)
refractive index 1.4880
FEMA 2011 | ADIPIC ACID
Flash point 385 F
storage temp. Store below +30C.
solubility methanol: 0.1 g/mL, clear, colorless
pka 4.43(at 25)
form Solid
color White
Odor wh. monoclinic prisms, pract. odorless
PH 3.74(1 mM solution);3.22(10 mM solution);2.71(100 mM solution);
Water Solubility 1.44 g/100 mL (15 C)
Merck 14,162
JECFA Number 623
BRN 1209788
Exposure limits ACGIH: TWA 5 mg/m3
Stability Stable. Substances to be avoided include ammonia, strong oxidizing agents.
InChIKey WNLRTRBMVRJNCN-UHFFFAOYSA-N
LogP 0.09 at 25â??
FDA 21 CFR 184.1009; 582.1009; 175.300; 175.320; 177.1680
Substances Added to Food (formerly EAFUS) ADIPIC ACID
SCOGS (Select Committee on GRAS Substances) Adipic acid
CAS DataBase Reference 124-04-9(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 76A0JE0FKJ
NIST Chemistry Reference Hexanedioic acid(124-04-9)
EPA Substance Registry System Adipic acid (124-04-9)
Corner Cube Prism is also called Retroreflector or Trihedral Prism. In the Corner Cube Prism, three reflecting surfaces are perpendicular to each other, like the side wall of the cube. The input surface is perpendicular to the cube diagonal. Disregarding the angle of incidence, the output beam is parallel to the input one, but it is of opposite direction. Inset of the several corner prisms, for better matching, their entrance-exit surface is often hexagonal. In case of this prism the phenomenon of full internal reflection occurs so it is not necessary, (however it is possible) to put mirror coating on the reflecting faces. Normally the reflection surfaces are Al reflection coating, and then covered with Cu and Black Painting.
Note for corner cube retroreflector:
(1). Besides N-BK7, custom-made corner cube Prisms made of other optical materials are available.
(2). Corner Cube Prisms with lower deviation tolerance, such as 1, 30, or 10, are available.
(3). Corner Cube Prisms with better surface Quality (better than 40/20 or 20/10) are available.
(4). HR or Metal reflection coating(Al, Ag, Cu, etc.) on reflection surfaces is available.
(5). AR coating on input/output surface is available upon request.
(6).Custom-made non-standard Corner Cube Prisms at any other size are available upon request.
The wedge prism can be used to individually deflect a laser beam by a certain angle or combined with another optical wedge prism for beam deviation purposes. A single prism can shift the incident beam by a specific angle. When two wedge prisms are used together, they can function as deformable prisms to correct the elliptical beam output of a laser tube or to deflect the beam at various angles within a 4�¸ range, where �¸ represents the deflection angle of a single prism. This beam shaping is achieved by independently rotating the two wedge prisms, making it ideal for beam scanning at different positions in imaging applications.
Features of Wedge Prism
The characteristics of wedge prisms include their very small apex angle (typically less than 1/10 radian), which results in minimal deflection of light as it passes through, regardless of the angle of incidence. In optical instruments, two wedge prisms are often combined and rotated relative to each other to produce different deflection angles or to convert the minimum deflection angle of light into the relative rotation angle of the two prisms. This setup is used to compensate for small angular deviations in the measurement of light. Such prisms find applications in many optical instruments, including military rangefinders and camera viewfinders.
Applications of Wedge Prisms
Laser Scanning: Wedge prisms can adjust the direction of the outgoing beam through rotation, making them commonly used in laser scanning devices.
Optical Pointing: In machine vision applications, wedge prisms are used to position the cameraâ??s field of view to the region of interest.
Beam Attenuation: By utilizing double Fresnel reflections, wedge prisms can attenuate high-power lasers while maintaining the beamâ??s polarization, size, and shape.
Beam Shaping and Translation: Wedge prisms can be used for beam shaping and translation, making them suitable for a variety of optical systems and applications.
The Powell Lens can be widely used in alignment, machine vision systems, construction and process control fields.
Worldhawk are professional supplier for powell lens, in fact, we have already become the one of the main important suppliers of powell lenses in China. cooperation with us , you will get high quality products with reasonable price and products performance at the same time
These Laser Line Generator Lenses, also known as Powell lenses, generate a straight, uniform laser line by fanning out a collimated beam in one dimension, as shown in the diagram above. The apex of each lens features an aspheric curve that evenly distributes the optical power, resulting in an intensity variation of less than 25% over the center portion of the line. You will get more even energy distribution along the laser line than using the rod lenses and lenses.
