Signpost of
light rays and waves

This website provides technical information (signposts) on ray optics (light rays) and wave optics (light waves) that are useful for optical design. The content is still limited, but we plan to gradually increase it.

Signpost of
light rays and waves

Table of contents :

Geometric Optics

・Relationship derived from Snell's law

・Vector representation of reflection and refraction of light at material interfaces

・Astigmatism that occurs when light is obliquely incident on a spherical mirror

・Mirror shape that focuses parallel light to a single point (paraboloid of revolution)

Physical Optics

・Derivation of the coherence length of light waves

・Light loss when passing a Gaussian beam through a circular aperture

Signpost of light rays and waves

Table of contents :

Geometric Optics

・Relationship derived from Snell's law

・Vector representation of reflection and refraction of light at material interfaces

・Astigmatism that occurs when light is obliquely incident on a spherical mirror

​・Mirror shape that focuses parallel light to a single point (paraboloid of revolution)

Physical Optics

・Derivation of the coherence length of light waves

・Light loss when passing a Gaussian beam through a circular aperture

Signpost of
light rays and waves

・Mirror shape that focuses parallel light to a single point (paraboloid of revolution)