Optical pick-up head unit
An optical pick-up and optical element technology, applied in optical recording heads, beam guiding devices, optics, etc., can solve problems such as difficult mass production of optical pick-up heads and complex manufacturing processes
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0023] Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.
[0024] image 3 An optical system of an optical pickup according to a preferred embodiment of the present invention is shown. refer to image 3 , this optical pick-up head device comprises two laser sources 31 and 39, sends out the light beam with different wavelength respectively; Two holographic beam splitters 32 and 40, are used for changing the light path of the light beam reflected by the information recording surface of optical disc; Beam splitting Device 33, according to the wavelength of the light, all transmits or reflects the incident light beam; collimator lens 34, can make the incident light beam become parallel light beam; holographic annular lens 35, is used to diffract the incident light beam according to its wavelength; and objective lens 36, with To focus the light beams on the corresponding information recording surfaces ...
PUM
Property | Measurement | Unit |
---|---|---|
transmittivity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com