38results about How to "Meet optical requirements" patented technology

The image scanner includes following parts: a circuit board; at least two sets of sensitizing element array (SEA) including first set of SEA and second set of SEA, and the two sets of SEA arranged parallel to each other located above the circuit board; at least one set of columnar lens composed of first and second columnar lenses; first columnar lens and second columnar lens suspended on the corresponding first set of SEA and second set of SEA; a first glass is suspended on the set of columnar lens; a second glass is suspended between the first columnar lens and the first set of SEA. Using two sets of SEA, the set of columnar lens, and the second glass forms at least two focuses and resolutions in order to scan different objects to be scanned on the glass.

An optical design method enabling a half-intensity angle to be located on a 8-degree round spot comprises the steps that (1) a reflection cup and a light guiding pillar are designed, wherein the light guiding pillar is arranged at the center of the reflection cup, the reflection surface of the reflection cup is a second free-form surface, one end of the light guiding pillar is a plane and serves as an incident plane, the other end of the light guiding pillar is concave and serves as an exit surface which is a first free-form surface, and the side face of the light guiding pillar is a reflection surface; (2) light enters through the incident plane of the light guiding pillar and is refracted to the reflection surface on the side face of the light guiding pillar, reflected to the first free-form surface of the light guiding pillar, refracted to the second free-form surface of the reflection cup, and finally emitted in the direction parallel to the optical axis; (3) the relationship between the energy obtained after light passes through the light guiding pillar and the reflection cup and the energy irradiated on a light distribution screen is established according to the energy conservation law, the second free-form surface of the reflection cup and the first free-form surface of the light guiding pillar are adjusted, and the half-intensity angle is obtained on the 8-degree round spot of the light distribution screen.

The invention discloses a fixing device of an array laser device. The fixing device of the array laser device disclosed by the invention comprises a laser device bottom plate, a laser device pressing plate, a plurality of mirror holders, a plurality of elastic gaskets and mirror holder pressing plates. With the adoption of the fixing device of the array laser device disclosed by the invention, optical requirements of the array laser device can be met and the requirements on the machining precision can be lowered at the same time.

The invention discloses a car lamp lens component and a car with the car lamp lens component. The car lamp lens component comprises a main lens and an auxiliary lens. The main lens is provided with a main light receiving face and a main light transmitting face which are oppositely arranged, an assembling groove which is concaved inwards is formed in one side of the auxiliary lens, an auxiliary light receiving face is arranged on the inner wall face of the assembling groove, an auxiliary light transmitting face is arranged on the other side of the auxiliary lens, the main lens is arranged in the assembling groove, and the main light transmitting face is attached to the auxiliary light receiving face. According to the car lamp lens component, the main lens and the auxiliary lens are combined, the optical requirement is met, meanwhile, various forming requirements, optical design and the light distribution process of a special-shaped lens are guaranteed, various defects of a thick-wall injection molding structure are overcome, forming is convenient, and the rate of finished products is high.

This invention provides a contact image scanner with multi focus and resolution, which comprises: a circuit board, at least two set of photosensitive element arrays composed of first and second set photosensitive element arrays arranged on circuit board of single row, at least one set of cylinder lens of first and second lens opposite separately to the said photosensitive element arrays and upper suspended, and a first glass suspended upper the cylinder lens. The combination of circuit board, photosensitive element arrays and cylinder lens matches with the position regulation, variety, thickness, and vertical distance, to form more than two focus and resolution for scanning to image with different focus.

A light guide plate consists of a light incoming surface, the first light outgoing surface and the second light outgoing surface including a subregion and a master region surrounding said subregion as well as lattice point formed on the second light outgoing surface. It is featured as making density of lattice point in subregion be greater that density of lattice point in adjacent master region along parallel direction of light incoming surface. The back light module prepared by said guide plate and double-face liquid crystal display unit prepared by said guide plate are both disclosed.