
Analyzer, Testing Equipment
61-6929-73 Penta Prism A: 10mm PPB-10-4
Product Description
Product Model: 61-6929-73Product Brand: SIGMAKOKI CO., […]
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Product Details
Product Model: 61-6929-73
Product Brand: SIGMAKOKI CO., LTD.
Features
- Reflect twice with a mirror to convert the mirrored reflection into the same upright image as the object.
- Before cameras went digital, pentaprisms were ***d to b*** light rays from objects at right angles so that the image was not mirror symmetric.
- It is also ***d as a right-angle reference for laser markers.
- Even if the angle of incidence to the prism changes, it always emits at 90 degrees to the incident ray.
- Using the internal reflection of the prism is more compact than using two mirrors, beca*** there is no angular deviation.
- * If you wipe the black paint with solvent, it may dissolve.
- * Reflection of the inner surface of the prism by Al coating has a reflectivity loss of about 12% on one surface and 23% on two surfaces.
- * The input/output efficiency is about 77%.
Spec
-
[
common specification] - Material: BK7
- Base material surface accuracy: λ/4
- Angle tolerance: ±3′
- Scratch - dig: 40?20
- Coating: Al coat + black coating, MgF 2 single layer reflective prevention coat
- Effective diameter: Circle inscribed to 90% A dimensions of square
- [Individual specification]
- A: 10mm
- C: 10.8mm
- RoHS conform product
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