Lobster eye lens with reflection barrier being revolution surface formed by planar circular-arc bus
A technology of lobster eye lens and surface of revolution, which is applied in the field of lobster eye lens, can solve the problem that the spatial resolution of lobster eye lens is difficult to improve, and achieve the effect of improving spatial resolution
Inactive Publication Date: 2012-09-19
CHANGCHUN UNIV OF SCI & TECH
View PDF5 Cites 9 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The caliber a of the microchannel tube 1 is determined. When the infinite parallel light enters the lobster eye lens, see figure 2 As shown, the light is reflected by the reflective wall 2, and the reflected light is incident on the focal plane 3, and the diameter b of the diffuse spot at the focal plane 3 is the projection width d of the length c of the reflective
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
[0011] See image 3 As shown, s is the vertical diameter of the incident end of the microchannel tube, l is the chord length of the plane arc bus 5, α is the reflected light rotation angle, β is the angle between the axis 4 of the microchannel tube and the direction of the incident light, and γ is the tension of the microchannel tube angle, f is the focal length of the lobster eye lens, r 2 is the radius of the active spherical surface 8 of the lobster eye lens, and f=r 2 / 2, θ is the angle between the normal of the first reflection point and the normal of the last reflection point of the reflecting wall, and α=2θ. Since l is a relatively small value compared to f, it is approximately considered that s is the beam width corresponding to angle α, therefore, At the same time, because θ=l / R, and according to the conventional method of optical design, β is taken at 0.707 caliber height corresponding to the central opening angle, and finally:
[0012] R≈2.94lf / s (2)
[0013] I...
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 lobster eye lens with a reflection barrier being a revolution surface formed by a planar circular-arc bus, which belongs to the technical field of optical elements. In the conventional lobster eye lens, a micro-channel tube reflection barrier is a plane, so that the imaging confusion disc diameter is large, and the spatial resolution of the lobster eye lens is difficult to increase. The lobster eye lens provided by the invention consists of a plurality of micro-channel tubes; the axis of each micro-channel tube is the radius of spheres with the same spherical center along each azimuth and pitching direction; and each micro-channel tube is formed by enclosing four same reflection barriers which are symmetrical to the axes of the micro-channel tubes pairwise. The lobster eye lens is characterized in that the reflection barrier is a revolution curved surface reflection barrier which is formed by revolving a planar circular-arc bus; the planar circular-arc bus starts from the incident end of each micro-channel tube and ends at the emergent end of the micro-channel tube; the curvature radius R of the planar circular-arc bus is determined by a formula shown in the specifications; in the formula, l refers to the chord length of the planar circular-arc bus; gamma is the field angle of each micro-channel tube; the extension line of the chord of the planar circular-arc bus intersects with the spherical center O; and the revolving axis of the planar circular-arc bus passes through the spherical center O, and is vertical to the extension line of the chord of the planar circular-arc bus.
Description
technical field [0001] The invention relates to a lobster eye lens whose reflective wall is a curved surface of revolution formed by a plane arc generatrix, and belongs to the technical field of optical elements. Background technique [0002] The lobster eye lens is based on the structure of the biological lobster eye. It uses the reflection of the light on the inner wall of the lens, that is, the reflection wall, to achieve convergence. Therefore, there will be no dispersion and chromatic aberration when the light is refracted. This makes the lobster eye lens more sensitive to the spectrum. It has strong adaptability, and has a good convergence effect in the infrared band, ultraviolet band, and even X-ray band. Moreover, the components of the lobster eye lens are highly symmetrical in spatial arrangement, so there is no off-axis aberration in the lobster eye lens, only on-axis point spherical aberration, and the viewing angle is basically unlimited. Existing lobster eye le...
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): G02B27/00
Inventor 欧阳名钊付跃刚胡源高天元刘智颖张磊王加科李卓霖贺文俊
Owner CHANGCHUN UNIV OF SCI & TECH
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap