High-zoom-ratio illumination optical system
A lighting optical system and zoom ratio technology, which is applied in the field of high zoom ratio lighting optical systems, can solve the problems of low uniformity of illumination, low zoom ratio of outgoing beam divergence angle, and low energy transmittance of the system. Achieve good machinability and engineering realization, high illumination uniformity, and good system image quality
Active Publication Date: 2021-11-09
长春电子科技学院
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In order to solve the problems existing in the prior art, the present invention provides a high zoom ratio illumination optical system to solve the problems of low divergence angle zoom ratio of the outgoing beam, low system energy transmittance, and illumination uniformity in security laser lighting technology. Not advanced question
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0035] In this embodiment, the high-magnification ratio illumination optical system is composed of a collimator lens group, an imaging lens group, a zoom lens group and an object plane, such as figure 1 and figure 2 shown, where:
[0036] The collimating lens group includes a first positive lens 1 . The material of the first positive lens 1 is HZF6, and its relative position with the imaging lens group is fixed by mechanical components on the lens outer frame.
[0037] The imaging lens group includes a second positive lens 2 and a third positive lens 3 . The materials of the second positive lens 2 and the third positive lens 3 are both HZF62, the above lenses are arranged in sequence, each lens is arranged on the same optical axis, and the relative positions between them are fixed by mechanical components on the lens outer frame.
[0038...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a high-zoom-ratio illumination optical system, belongs to the technical field of security laser illumination, and solves the problems of low emergent beam divergence angle zoom ratio, low system energy transmittance, low illumination uniformity and the like in a security laser illumination technology. The system comprises a collimating lens group, an imaging lens group, a zoom lens group and an object plane; an incident light beam is collimated after passing through the collimating lens group, is diverged after being imaged by the imaging lens group, the divergence angle of the incident light beam is changed by the zoom lens group, and an emergent light beam is irradiated on the object surface; and the collimating lens group, the imaging lens group, the zoom lens group and the object plane are sequentially arranged on a same optical axis. According to the system, the zoom ratio of the system is greatly improved; the energy transmission rate of the system is high, only two pots are needed for coating, and the coating cost is saved; a whole light path has no convergent light spots in the lens, and has good machinability and engineering realizability; the system has the advantages of good image quality, high illumination uniformity, short total length, miniaturization and high integration level, and has a positive promotion effect on the development of a security laser illumination technology in China.
Description
technical field [0001] The invention belongs to the technical field of security laser lighting, and relates to a high zoom ratio lighting optical system. Background technique [0002] Today, with the rapid development of science and technology, the security industry is also constantly moving forward, and the requirements for lighting technology are also constantly improving. Due to its own characteristics, laser lighting technology has a very broad application prospect. [0003] Within the effective distance of security monitoring, close-range monitoring requires the field of view to be as large as possible, and when the distance is far away, sufficient angles are guaranteed to meet the requirements of clear imaging. In practical applications, when the focal length of the camera changes, the field of view will also change accordingly. In view of this, the lighting angle is required to cover the entire monitoring field of view, that is, when the monitoring field of view chan...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G03B15/05F21V14/06
CPCG03B15/05F21V14/06
Inventor 李美萱阚晓婷王美娇
Owner 长春电子科技学院