prisms
BCI produces series prisms including roof prisms, right angle
prisms, penta prisms, dove prism, half pentagonal prisms, porro
prisms, Corner Cube Prisms, Beamsplitter Cube, large-size prisms,
solar rod prism, X-Cubes assembly, finger print prism, DVD series
prisms, agglutinate prism series, etc.
1. Materials: H-K9, H-BAK7, the kinds of high quality optical
glass.
2. Processing capability:Angular Accuracy 5"；Surface
Accuracy:within1/10λ；Pyramid Error:1"； Size Accuracy:±0.02mm.
3. Application: optical apparatus, opto-electrical digital
products, image equipments, fingerprint systems, medical
instruments, precise digital control machinery and other optical
fields, popular science educational apparatus, optical
communication, etc.
Corner Cube Prisms
Corner Cube Prismor Retroreflections have the property that any ray
entering will be reflected back to itself, regardless of
the entrance angle:
Specification:
Material:N-BK7 Grade A Optical Glass
Dimension tolerance:+0.0/-0.2
Beam deviation:+0.0/-0.2
Flatness:<λ/10 at reflection surface
Surface quality:60-40 scratch-dig
Clear aperture:>90%
Dove prisms
The dove prism is also called image rotator.The Prism rotates the
image without chaning the direction of the input beam,<br/>
wich is parallelto hypotenuse.Rotation of the prism in relation to
the subject causes double rotations of the image.Dove prisms
should be used in the parrllelbeam.
Specification:
Material:N-BK7 and the other materials
Dimension telerance:+0.0/-0.05
Deviation:±10 arc sec
Surface quality:20-10 scratch-dig
Clear aperture:>80%
Penta Prism
There are two important properties in pentaprisms. The first one is
that the image is neither inverted nor reversed as it is deviated
by 90 degrees. Secondly, the pentaprism is a constant
deviation prism, meaning that the same exact 90degree deviation
applies to
all rays transmitted by the useful aperture, regardless of the
angles between these rays and the optical axis.
They are often used in range finding, surveying, alignment and
cinephotography.
Material:All kinds of high quality optical glass, N-BK7, N-BAK4.
etc
Monthly Capacity:50,000 pcs
Right angle prism
We offer these prisms uncoated or with five different coating
options, namely:
Broadband Multilayer Anti-Reflection coating on legs
Protected Aluminum on hypotenuse and Broadband Multilayer
Anti-Reflection on legs
Protected Aluminum on hypotenuse
Protected Aluminum on legs
Broadband Multilayer Anti-Reflection coating on hypotenuse
These are some of the most versatile prisms available. They can be
used as internal or external reflectors or as retro-reflectors
according to the orientation of the prism with respect to the
incoming light. An uncoated prism will act as a mirror for light
incident on one of the short sides (legs) since incident light Is
totally internally reflected at the hypotenuse. (TIR occurs when
the angle of incidence is greater than the critical angle which for
the glass-air interface occurs at 41.2 degrees). Even though
uncoated prisms work well their useful full field of view is
limited to 10 or 12 degrees in the visible. It is recommended that
appropriate coatings be added to optimize the range of prism uses.
The Broadband Multilayer Anti-Reflection coating will withstand
high power laser use, while the Protected Aluminum coating is
evaporated aluminum overcoated with a layer of MgF2 to protect it
from scratches and abrasions.
Porro prisms
Specifications:
Dimension tolerance:±0.03~0.1
Angle tolerance3'~5'
Parallelism5'~10'
Roughness60/40~40/20
Aperture0.5~2
rregularity0.2~0.5
Materials: H-K9, H-BAK7, the kinds of high quality optical glass.
L= 10mm~40mm,
Roof prisms
The roof or Amici prism deviates or deflects the image through an
angle of 90 degrees. It is a right-angle prism whose hypotenuse has
been replaced by a 90-degree TIR roof. Glass that does not
contribute to the clear aperture has been trimmed away to reduce
size and weight.
Roof prisms are suitable for applications that demand both
right-angle deflection and image erection (a combination
left-to-right angle deflection and top-to-bottom inversion,
equivalent to a 180 degree rotation about the optical axis).
These are normally uncoated for use in TIR mode.
Protected aluminum or internal silver coatings may be specified for
roof surfaces when used in wide field applications beyond TIR
limits.
Antireflection coated entrance and exit faces are also
available.
Half pentagonal prisms
Specifications
Dimension tolerance:±0.03~0.15
Angle tolerance:3'~5'
Parallelism:5'~10'
Roughness:60/40~40/20
Aperture:0.5~2
Irregularity: 0.2~0.5
Materials: H-K9, H-BAK7, the kinds of high quality optical glass.
L= 10mm~60mm
Solar rod
CPV technology combines its proprietary high-concentration,
compound-reflective optical design with the record-setting
efficiency
of multi-junction solar cells. Each system incorporates power units
comprised of primary and secondary mirrors, a non-imaging optical
element and a triplejunction solar cell. The primary and secondary
mirrors focus the sun’s energy500 times
onto the optical rod, which guides the light onto the
high-efficiency solar cell that is more than twice as efficient as
the average silicon cell.
Specifications:
Dimension tolerance:±0.05～0.15mm
Angle tolerance:±5′～10′
Bevel:0.2～0.4mm
Surface Quality:60/40～40/20
N:0.5～3
△:N0.2～0.5
Optical coating:
