Wide-angle lens
A wide-angle lens and lens technology, applied in the field of optical systems, can solve the problems of long lens length and large chromatic aberration of ultra-wide-angle lenses
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0031] Please refer to figure 1 , what is shown is the first embodiment of the present invention, the wide-angle lens includes a first lens 10, a second lens 20, a third lens 30, A diaphragm ST, a fourth eyeglass 40 and a fifth eyeglass 50 are provided with CCD, CMOS or other photosensitive components (not shown) at the image side B, and a filter can be provided between the photosensitive element and the fifth eyeglass 50. Flat lenses 60 such as light sheet and / or protective glass, the number of flat lenses 60 can be increased or decreased or not provided according to requirements.
[0032] In this embodiment, the first lens 10 has a negative refractive power, its object side is convex and its image side is concave, and the radius of curvature of its object side is positive and greater than the curvature radius of the image side. The first lens 10 made of plastic Both the object side and the image side can be aspheric. In this paper, when the center of a curved surface is cl...
PUM
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