摘要:
Disclosed are a lens assembly and a camera module. The lens assembly includes a lens unit and a spacer provided at an upper portion or a lower portion of the lens unit. The spacer includes polymer having the glass transition temperature of about 140° C. to about 500° C.
摘要:
Disclosed is a side pumping type DPSS (Diode Pumped Solid-State) laser having a high efficiency of pumping light together with a large output of the laser power. The DPSS laser includes a first laser chip for generating a pumping light, a second laser chip provided at a predetermined degree to be slightly slanted, although being parallel with the first laser chip, so as to avoid a contact with the pumping light, a first and second focusing lens for focusing the pumping lights, and a side pumping medium for forming the focused pumping lights in a beam mode so as to output as a lasing light.
摘要:
An optical modulator and an image projection display apparatus using it can reduce a size of a system and improve efficiency, by attaching a reflection plane on a nonlinear matter. The optical modulator in accordance with the present invention includes a nonlinear matter which is divided into predetermined regions having a direction of a polarization which is periodically reversed, an electrode which is joined with the upper and lower sides of the nonlinear matter, for applying an electric field to the polarization region at the lower portion of the nonlinear matter and a reflection plane which is joined to the rear surface of the nonlinear matter, for reflect an incident light to an incident region again. The image projection display apparatus using a reflective optical modulator in accordance with the present invention includes a light source for irradiating a light, a breaker plane which is positioned in the upper portion of the light source, for reflecting the light of the light source to an one-dimensional optical modulator and intercepting the light which is not diffracted in the one-dimensional optical modulator, a collimating lens for focusing the light which is diffracted in the one-dimensional optical modulator, a focusing lens for focusing the light of the collimating lens and a Galvano meter for irradiating an image plane by reflecting the light which is irradiated through the focusing lens.
摘要:
Device for preventing entrance of backlight into an optical view finder for preventing degradation of an image, including a zoom lens part for adjusting a size and angle of an image signal of an objective in planning a picture frame, a mirror shutter part capable of opening and closing for sending the image signal processed in, and received from the zoom lens part to a first optical axis and a second optical axis, an image forming CCD part disposed at an image forming plane of the image signal of the zoom lens part on the first optical axis for converting the image formed on the first optical axis into an electric signal for applying the electric signal to a display or a recording medium, and an optical view finder part disposed on the second optical axis for adjusting a magnification of the image signal on the second optical axis by means of an internal optical system for being observed by an observer's eye.
摘要:
Disclosed is a camera module. The camera module includes a lens assembly comprising a plurality of lens units having a polygonal outer peripheral portion, a lens barrel receiving the lens assembly, a fixing unit fixing the lens assembly to the lens barrel, a housing coupled with the lens barrel, and a sensor unit in the housing. The lens barrel is provided in a lower portion thereof with a receiving groove, and the receiving groove has a shape corresponding to a shape of the lens assembly.
摘要:
Disclosed are a lens unit and a method of manufacturing the same. The lens unit includes a lens part including a curved region having a predetermined curvature; and a support part including a hole, in which the lens part is installed, and attached to the lens part at a lateral side of the hole. The lens part having the curvature and the support part of the lens unit are formed in separate processes such that the hole is formed in the support part having the strength, and the lens part is formed by filling the hole with the lens part, so that the movement of resin caused by shrinkage of the lens part when the lens part is cured is inhibited, and the support part and the lens part does not form the layered structure, thereby allowing the lens unit to be formed with a thin thickness.
摘要:
Disclosed is a camera module. The camera module includes a lens assembly comprising a plurality of lens units having a polygonal outer peripheral portion, a lens barrel receiving the lens assembly, a fixing unit fixing the lens assembly to the lens barrel, a housing coupled with the lens barrel, and a sensor unit in the housing. The lens barrel is provided in a lower portion thereof with a receiving groove, and the receiving groove has a shape corresponding to a shape of the lens assembly
摘要:
A display device is provided. The display device comprises a light guide plate; a first light source being disposed at a side of the light guide plate and having a first half-power angle; a second light source being disposed at the side of the light guide plate and having a second half-power angle; and a display panel on the light guide plate.
摘要:
Provided is a display device. The display device includes a light guide plate, a light source disposed on a side surface of the light guide plate, a light conversion member disposed between the light source and the light guide plate, and a plurality of light path change particles disposed between the light conversion member and the light guide plate.
摘要:
Provided is a display device. The display device includes a light guide plate, a light source disposed on a side surface of the light guide plate, a light conversion member disposed between the light source and the light guide plate, and a plurality of light path change particles disposed between the light conversion member and the light guide plate.