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·Optical Components

Optical Gratings

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As Based on the Ion bundle and Optical special method .we can produce many kinds of Optical gratings for CD,DVD etc optical plane diffraction as one of parts of Pick-up package .currently we enter into mass production.

For high quality purpose all optical grates are produced by on-line quality checking by computer as 100%

Currently optical constants :

MOC － GT － 21	optical constant ： 21 μ m
MOC － GT － 30	optical constant ： 30 μ m
MOC － GT － 34	optical constant ： 34.5 μ m
MOC － GT － 35	optical constant ： 35 μ m
MOC － GT － 42	optical constant ： 42 μ m

Optical spectroscopy resolution and optical 、衍射效率 etc . can be designed as Customers ' s 。

Optical grating is a set instrument which can divide all incidence wavelengths

Drawing as 1-1

Draw1-1 PR650 optical system

1-Laser 2-Grating 3- detector 4-semi reflector

5-object len 6- 双轴力矩器 ; 7-CD -disc

Draw1-2 optical grating

phase optical grating O order and 1 order diffraction efficient

Sheet (II) 0 级 /1 级 %	5.0-6.0	4.5-5.5	3.0-4.0
0 级衍射效率 %	65-70	60-65	55-60
1 级衍射效率 %	11.5-12.5	12.5-13.5	15.0-16.0
+/-1 级偏差 %	1	1	1

* Sheet (II) note ： Customer can choose the specification according to customer request in the table.