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"In physics, ray tracing is a method for calculating the path of waves or particles through a system with regions of varying propagation velocity, absorption characteristics, and reflecting surfaces. Under these circumstances, wavefronts may bend, change direction, or reflect off surfaces, complicating analysis. Ray tracing solves the problem by repeatedly advancing idealized narrow beams called rays through the medium by discrete amounts. Simple problems can be analyzed by propagating a few rays using simple mathematics. More detailed analyses can be performed by using a computer to propagate many rays.
When applied to problems of electromagnetic radiation, ray tracing often relies on approximate solutions to Maxwell's equations that are valid as long as the light waves propagate through and around objects whose dimensions are much greater than the light's wavelength. Ray theory does not describe phenomena such as interference and diffraction, which require wave theory (involving the phase of the wave)." [Ray tracing (physics). Wikipedia]
The example "Ray tracing diagram for concave lens" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Physics solution from the Science and Education area of ConceptDraw Solution Park.
Ray tracing diagram
Ray tracing diagram, body, concave lens,

physics symbols, physics diagrams Physics

physics symbols, physics diagrams
Physics solution extends ConceptDraw PRO software with templates, samples and libraries of vector stencils for drawing the physical illustrations, diagrams and charts.

Physics Diagrams

ConceptDraw PRO diagramming and vector drawing software extended with Physics solution from the Science and Education area is the best for creating: physics diagrams, pictures which describe various physical facts and experiments, illustrations of various electrical, mechanical and optic processes, of any complexity quick and easy.
The vector stencils library "Optics" contains 17 symbol icons: reflecting surface; convex and concave lens with and without optic axis, body or ray; ray; parallel beam of light; point light source; prism with and without ray path; refraction.
Use these shapes for drawing physical schemes of geometrical optics experiments and ray tracing diagrams in the ConceptDraw PRO diagramming and vector drawing software extended with the Physics solution from the Science and Education area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ science-education-physics
Reflecting Surface
Reflecting Surface, reflecting surface,
Convex Lens
Convex Lens, convex lens,
Concave Lens
Concave Lens, concave lens,
Object
Object, physical body,
Ray
Ray, light ray, ray,
Point Light Source
Point Light Source, point light source,
Prism
Prism, prism,
Refraction
Refraction, refraction, complete reflection,
Body and Convex Lens
Body and Convex Lens, body, convex lens,
Body and concave lens
Body and concave lens, body, concave lens,
Convex Lens and Ray
Convex Lens and Ray, convex lens, ray,
Concave Lens and Ray
Concave Lens and Ray, concave lens, ray,
Ray path through prism
Ray path through prism, ray path, prism,
Parallel beam of light
Parallel beam of light, parallel beam, light,
Parallel beam of light 2
Parallel beam of light 2, parallel beam, light,
Concave lens, optic axis
Concave lens, optic axis,  lens, optic axis,
Convex lens, optic axis
Convex lens, optic axis,  lens, optic axis,
The vector stencils library "Optics" contains 17 symbol icons: reflecting surface; convex and concave lens with and without optic axis, body or ray; ray; parallel beam of light; point light source; prism with and without ray path; refraction.
Use these shapes for drawing schemes of physical experiments in geometrical optics and ray tracing diagrams.
"Geometrical optics, or ray optics, describes light propagation in terms of "rays". The "ray" in geometric optics is an abstraction, or "instrument", which can be used to approximately model how light will propagate. Light rays are defined to propagate in a rectilinear path as they travel in a homogeneous medium. Rays bend (and may split in two) at the interface between two dissimilar media, may curve in a medium where the refractive index changes, and may be absorbed and reflected. Geometrical optics provides rules, which may depend on the color (wavelength) of the ray, for propagating these rays through an optical system. This is a significant simplification of optics that fails to account for optical effects such as diffraction and interference. It is an excellent approximation, however, when the wavelength is very small compared with the size of structures with which the light interacts. Geometric optics can be used to describe the geometrical aspects of imaging, including optical aberrations." [Geometrical optics. Wikipedia]
The example "Design elements - Optics" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Physics solution from the Science and Education area of ConceptDraw Solution Park.
Optical symbols
Optical symbols, refraction, complete reflection, reflecting surface, ray path, prism, prism, point light source, physical body, parallel beam, light, light ray, ray, convex lens, ray, convex lens, concave lens, ray, concave lens, body, convex lens, body, concave lens,  lens, optic axis,

Chemistry Symbols and Meanings

Chemistry solution offers 5 libraries with large collection of vector chemistry symbols and meanings, chemistry equation symbols, organic chemistry symbols, and chemical clipart: Chemical Elements Library, Chemical Drawings Library, Conformations Library, Laboratory Equipment Library, Periodic Table of Chemical Elements Library.

BPMN 2.0

ConceptDraw PRO diagramming and vector drawing software offers the Business Process Diagram Solution from the Business Processes Area of ConceptDraw Solution Park with powerful tools to help you easy represent the business processes and create the business process diagrams based on BPMN 2.0 standard.

Physics Symbols

ConceptDraw PRO diagramming and vector drawing software extended with Physics solution from the Science and Education area is a powerful software for creating various physics diagrams.
Physics solution provides all tools that you can need for physics diagrams designing. It includes 3 libraries with predesigned vector physics symbols: Optics Library, Mechanics Library and Nuclear Physics Library.