The pentagonal prism is one of the beam deflectors
with a fixed angle (90°). It has two purposes: one is that no matter what the
incident angle on the first surface is, the outgoing light turns the incident
light to a fixed angle (90°); the other The second is that it is different from
the right-angled building, and the formed image has neither rotation nor
specular reflection. The pentagonal mirror is most suitable for image
observation systems or measuring instruments. The internal total reflection
based on the principle of the critical angle cannot be realized by the
pentagonal prism. Therefore, this The two reflective surfaces of floor mirrors
are generally coated with metal film and dielectric film.Our standard products
are aluminum-coated or reinforced aluminum.
Material |
BK7 Grade A Optical Glass |
Dimensional tolerance |
+/-0.2mm |
Reflectivity |
R>95%per Face@400-700nm |
face shape |
λ/2@633nm λ/4@633nm |
smoothness |
60/40 scratch/dig |
Chamfer |
0.2mm to 0.5mm |
Coating |
Uncoated |
Material |
BK7 Grade A Optical Glass |
Dimensional tolerance |
+/-0.2mm |
Reflectivity |
R>95%per Face@400-700nm |
face shape |
λ/2@633nm λ/4@633nm |
smoothness |
60/40 scratch/dig |
Chamfer |
0.2mm to 0.5mm |
Coating |
Uncoated |