摘要:
The present invention relates to a way of reducing LED's color temperature and color coordinates drifting, more particularly to a phosphor-converted LED with blue ray light emitting body so that the influence of LED's heat dissipation on color performance can be minimized.
摘要:
An illumination device capable of producing a floating image which includes a light emitting module installed at a central position of a reflecting cavity. An object is placed on the light emitting module and a light reflector is placed at the opening of the reflecting cavity, a hole is located at a central position of the light reflector, corresponding to the light emitting module and the object. A power supply module for supplying an electric power to the light emitting module for generating a light source, so that the light source can be projected and passed through the object, and an image of the object is reflected from the light reflector to the mirror of the reflecting cavity, and then reflected from the mirror to the hole where the light is focused to form a floating image with a shape identical to the object, so as to achieve the effects of illumination and forming a floating live image.
摘要:
A light-emitting diode (LED) packaging structure having low angular correlated color temperature deviation includes: a substrate, a LED chip, a phosphor body, and a transparent lens. The LED chip is disposed on the substrate, and the phosphor body includes a hemisphere body and an extension part extended from the bottom of the hemisphere body. The phosphor body is disposed on the substrate and covers the LED chip. Besides, the transparent lens is disposed outside the phosphor body to cover the phosphor body to increase light extraction efficiency. With the implementation of the present invention, the setup of the extension part makes a longer vertical distance between the LED chip and the top of the phosphor body, so that the light in the normal direction of the LED chip can have a longer optical length, thereby to reduce the angular correlated color temperature deviation.
摘要:
A light-emitting diode (LED) packaging structure having low angular correlated color temperature deviation includes: a substrate, a LED chip, a phosphor body, and a transparent lens. The LED chip is disposed on the substrate, and the phosphor body includes a hemisphere body and an extension part extended from the bottom of the hemisphere body. The phosphor body is disposed on the substrate and covers the LED chip. Besides, the transparent lens is disposed outside the phosphor body to cover the phosphor body to increase light extraction efficiency. With the implementation of the present invention, the setup of the extension part makes a longer vertical distance between the LED chip and the top of the phosphor body, so that the light in the normal direction of the LED chip can have a longer optical length, thereby to reduce the angular correlated color temperature deviation.
摘要:
An illuminant with low dazzle includes a lampshade and an illuminating module. The lampshade has a receiving space, a reflection section and a transmission section. A connection hole is opened on the reflection section. The illuminating module includes at least one light source and a function board. The function board is assembled to the connection hole. The light source is electrically connected to the bottom surface of the function board. Therefore, some light beams from the light source are reflected at the reflection section to the transmission section; the others directly reach to the transmission section. All light beams from the light source are emitting out via transmission section, such that the light beams is not bright enough to make people dazzle but the intensity of the light beams are not influenced by the transmission section.
摘要:
A detecting apparatus for detecting an object includes at least a screen, at least a detecting unit and at least a holding unit. The screen is partial light-permeable and has a first surface and an opposite second surface. The object is disposed adjacent to the first surface of the screen. The detecting unit is disposed corresponding to the object and located adjacent to the second surface of the screen. The holding unit holds the relative distances between the screen, the object and the detecting unit. The detecting unit captures the image of the second surface of the screen so as to calculate the optical field distribution of the object. The detecting apparatus can measure the optical field distribution of an object quickly and has the advantages of low cost and high accuracy.
摘要:
A displaying device for projecting image onto pupils includes a light source emitting a light beam, a first light splitter reflecting the light beam, an image unit providing an image message, a displayer integrating the light beam form the first light splitter and the image message from the image unit into an image beam, a first lens focusing the image beam and a second light splitter transforming the image beam into a enlarged virtual image and projecting the enlarged virtual image onto user's pupils for a user to watch. The second light splitter is placed in front of user's pupils and is transparent to transmit the view around the user to user's pupils.
摘要:
A hologram disc reading and writing apparatus including a signal light source module, a beam splitter, a reference/reading light source, a reflector, and an optical reading head and a hologram disc reading apparatus are provided. A signal light beam emitted from the signal light source module is transmitted to a data region of a hologram disc through the beam splitter. The reference/reading light source, the signal light source module, and the optical reading head are disposed at the same side of the hologram disc. The reflector is disposed at the other side. A spherical wave light beam emitted from the reference/reading light source is transmitted through the data region and reflected by the reflector to form a phase conjugate light beam transmitted to and through the data region. The phase conjugate light beam is transformed to a data light beam transmitted to the optical reading head through the beam splitter.
摘要:
A near field optical disc and a near field optical disc reading apparatus are provided. The near field optical disc has at least one light source and a near field optical pick-up head, and the near field optical disc includes a light guiding substance, a first reflection layer and a second reflection layer. The light guiding substance has a first surface, a second surface opposite thereto and at least one light entrance window. Light emitted from the light source enters the light guiding substance through the light entrance window. The second reflection layer is disposed on the second surface. The first reflection layer is disposed on the first surface and has a plurality of light pervious holes. A part of the light is transmitted through the light pervious holes and picked up by the near field optical pick-up head.
摘要:
A near field optical disc and a near field optical disc reading apparatus are provided. The near field optical disc has at least one light source and a near field optical pick-up head, and the near field optical disc includes a light guiding substance, a first reflection layer and a second reflection layer. The light guiding substance has a first surface, a second surface opposite thereto and at least one light entrance window. Light emitted from the light source enters the light guiding substance through the light entrance window. The second reflection layer is disposed on the second surface. The first reflection layer is disposed on the first surface and has a plurality of light pervious holes. A part of the light is transmitted through the light pervious holes and picked up by the near field optical pick-up head.