Abstract: An optical device is provided. The optical device includes a fiber array and an optical assembly. The fiber array includes a common channel and a plurality of divided channels arranged in parallel in a first direction and extending along a second direction, and the fiber array has a first surface from a top view perspective. The optical assembly is coupled to the first surface of the fiber array. The first surface and the common channel of the fiber array form an angle less than 90 degrees from the top view perspective.

Abstract: An optical device is provided. The optical device includes a fiber array and an optical assembly. The fiber array includes a common channel and a plurality of divided. channels arranged in parallel in a first direction and extending along a second direction, and the fiber array has a first surface from a top view perspective. The optical assembly is coupled to the first surface of the fiber array. The first surface and the common channel of the fiber array form an angle less than 90 degrees from the top view perspective.

Abstract: Provided is a variable optical attenuator, including a pigtail, a spacer, a lens and a cap. The pigtail has a first waveguide and a second waveguide. The first waveguide transmits incident light, and the second waveguide receives the returned light. The pigtail is attached to one side of the space, and the lens is attached to another side of the space. Moreover, the cap includes a hollow portion, a first connecting portion and a second connecting portion. The lens is placed inside the hollow portion, and the space is connected to the first connecting portion of the cap.

Abstract: Provided is a variable optical attenuator, including a pigtail, a spacer, a lens and a cap. The pigtail has a first waveguide and a second waveguide. The first waveguide transmits incident light, and the second waveguide receives the returned light. The pigtail is attached to one side of the space, and the lens is attached to another side of the space. Moreover, the cap includes a hollow portion, a first connecting portion and a second connecting portion. The lens is placed inside the hollow portion, and the space is connected to the first connecting portion of the cap.

Abstract: A variable optical attenuator with wavelength-dependent loss compensation is provided, including: an optical fiber pigtail comprising at least a first waveguide and a second waveguide; a lens being disposed between the optical fiber pigtail and a reflector for focusing an emitted light from the first waveguide and returning a reflected light from the reflector to the second waveguide of the optical fiber pigtail; and the reflector being disposed at the focus of the lens to reflect the emitted light from the first waveguide passing the lens, and the reflected light passing through the lens to return to the second waveguide, the reflector having an initial position with a normal forming a pre-tilt angle with the axis of lens in the incident plane defined by the two axes, and the reflector tilting towards a larger tilt angle when an attenuation value increasing.

Abstract: A substrate for fingerprint contact includes a plate, and the plate includes a first surface and a second surface. The first surface is an optical diffusing surface. The optical diffusing surface is used for being contacted by a finger, and features hazed particles. The second surface faces an optical imaging system. The optical diffusing surface of the plate helps to enhance light to be evenly emitted to the finger and weakens the unnecessary scattered light to the optical imaging system, so as to enhance the recognition rate of a fingerprint when the optical imaging system is used for intercept the light applied on a finger.

Abstract: A fingerprint recognition device, applicable to retrieving a fingerprint image, includes a light guiding plate, a finger plate, an imaging piece, and at least one light source. The light guiding plate has a first surface and a second surface opposite to each other and a sidewall surface connected between the first surface and the second surface. The finger plate is adjacent to the first surface of the light guiding plate. The imaging piece is adjacent to the second surface of the light guiding plate, and the light source is adjacent to the sidewall surface of the light guiding plate. The light source emits a light towards the sidewall surface and the light enters the light guiding plate. The light guided by the light guiding plate is emitted out of the first surface, and the imaging piece retrieves the fingerprint image on the finger plate.

Abstract: A substrate for fingerprint contact includes a plate, and the plate includes a first surface and a second surface. The first surface is an optical diffusing surface. The optical diffusing surface is used for being contacted by a finger, and features hazed particles. The second surface faces an optical imaging system. The optical diffusing surface of the plate helps to enhance light to be evenly emitted to the finger and weakens the unnecessary scattered light to the optical imaging system, so as to enhance the recognition rate of a fingerprint when the optical imaging system is used for intercept the light applied on a finger.

Abstract: A finger board for a finger to press including a board layer and a micro-structure layer is disclosed. The board layer has a first refractive index, and has a first board surface and a second board surface opposite to each other. The first board surface is used for the finger to press. The micro-structure layer has a second refractive index different from the first refractive index, and is disposed on the second board surface. Therefore, a light ray emitted from the micro-structure layer to the first board surface can be reflected and scattered on the first board surface, so as to uniformly distribute energy.

Abstract: A fingerprint recognition device, applicable to retrieving a fingerprint image, includes a light guiding plate, a finger plate, an imaging piece, and at least one light source. The light guiding plate has a first surface and a second surface opposite to each other and a sidewall surface connected between the first surface and the second surface. The finger plate is adjacent to the first surface of the light guiding plate. The imaging piece is adjacent to the second surface of the light guiding plate, and the light source is adjacent to the sidewall surface of the light guiding plate. The light source emits a light towards the sidewall surface and the light enters the light guiding plate. The light guided by the light guiding plate is emitted out of the first surface, and the imaging piece retrieves the fingerprint image on the finger plate.

Abstract: A light source module for generating polarized light includes a light emitting element, a reflector, and an optical element. The light emitting element generates a light ray, and the reflector reflects the light ray towards the optical element. The optical element includes a light splitting face and a reflection face. The light splitting face receives the light ray, and an angle between the light splitting face and the incident light ray is at about a Brewster's Angle. After the light ray is irradiated to the light splitting face, the light ray is divided into a refraction light and a reflection light. The reflection face reflects the refraction light, and the reflection face is substantially perpendicular to a path of the refraction light. Therefore, a light source with a high degree of polarization is realized by a design of the light splitting face and the reflection face.

Abstract: The disclosure provides a unit with a sound isolation/vibration isolation structure, an array employing the same, and a method for fabricating the same. The unit with a sound isolation/vibration isolation structure includes: a hollow frame surrounding an inside space; a film disposed within the inside space, vertically contacting an inside wall of the hollow frame; and a body mass disposed on a top surface of the film. Particularly, the horizontal area of the inside space is larger than the area of the top surface of the film.

Abstract: A light source module for generating polarized light includes a light emitting element, a reflector, and an optical element. The light emitting element generates a light ray, and the reflector reflects the light ray towards the optical element. The optical element includes a light splitting face and a reflection face. The light splitting face receives the light ray, and an angle between the light splitting face and the incident light ray is at about a Brewster's Angle. After the light ray is irradiated to the light splitting face, the light ray is divided into a refraction light and a reflection light. The reflection face reflects the refraction light, and the reflection face is substantially perpendicular to a path of the refraction light. Therefore, a light source with a high degree of polarization is realized by a design of the light splitting face and the reflection face.

Abstract: A fiber optic interferometric position sensor and measurement method thereof suitable for determining the moving direction of a measurement object in an environment of high electric or magnetic field strengths are disclosed. The fiber optic interferometric position sensor comprises at least one light source, a plurality of fiber optic couplers, a plurality of sensing fibers and a plurality of photodetectors. The fiber optic couplers are connected to the at least one light source, the photodetectors, and the sensing fibers, respectively.

Abstract: A fiber optic interferometric position sensor and measurement method thereof suitable for determining the moving direction of a measurement object in an environment of high electric or magnetic field strengths are disclosed. The fiber optic interferometric position sensor comprises at least one light source, a plurality of fiber optic couplers, a plurality of sensing fibers and a plurality of photodetectors. The fiber optic couplers are connected to the at least one light source, the photodetectors, and the sensing fibers, respectively.

Abstract: A fiber optic interferometric position sensor and measurement method thereof suitable for determining the moving direction of a measurement object in an environment of high electric or magnetic field strengths are disclosed. The fiber optic interferometric position sensor comprises at least one light source, a plurality of fiber optic couplers, a plurality of sensing fibers and a plurality of photodetectors. The fiber optic couplers are connected to the at least one light source, the photodetectors, and the sensing fibers, respectively.

Abstract: A fiber optic interferometric position sensor and measurement method thereof suitable for determining the moving direction of a measurement object in an environment of high electric or magnetic field strengths are disclosed. The fiber optic interferometric position sensor comprises at least one light source, a plurality of fiber optic couplers, a plurality of sensing fibers and a plurality of photodetectors. The fiber optic couplers are connected to the at least one light source, the photodetectors, and the sensing fibers, respectively.