The precision optical glass reticle is generally installed on the focal plane of the right eyepiece of the telescope. It is a thin glass with reticle dense lines engraved on the surface of the pole book. In theory, this thin glass also participates in imaging and extends the focal length of the objective lens. , Will have more or less influence on the length of the right eyepiece.
BRD Optical is one of a few companies producing reticles, because the reticles require extremely high cleanliness. Any tiny dust will produce large black spots during observation. At the same time, the accuracy of the installation position of the reticle is extremely high. Therefore, try not to disassemble it. If it is disassembled, it must be as it is recovery.
The reticle is generally installed on the focal plane of the right eyepiece of the telescope or scope. It is made of a thin glass with a very thin surface engraved with the reticle dense line. In theory, this thin glass is also involved in imaging, extending The focal length of the objective lens will more or less affect the length of the right eyepiece. The reticle has extremely high requirements for cleanliness, and any tiny dust will produce large black spots during observation, and the installation position of the reticle requires extremely high precision.
The reticle generally adopts chromium plating and etching to form the danger of reticle. The line adopts chromium plating, and the luminous type is filled with titanium trioxide or zinc oxide powder after etching.
The reticle produced by Jiujing has an accuracy of +/-0.002m and is widely used in medical and military fields.
For special purpose reticles, Jiujing can customize anti-reflection, waterproof, oleophobic and anti-glare coatings for customers.
Yes, we can. We will process the template according to the CAD drawings provided by the customer.
There are mainly two methods of etching and photolithography. The correct method will be selected according to the customer's drawing requirements and actual results