1) A system for conveying andor selecting fruit andor vegetable products, comprising:
a plurality of buckets presenting respective resting surfaces for one or more fruit andor vegetable products;
a conveying line of said buckets along a horizontal axis (X);
at least one discharge station arranged by the side of said conveying line; and
an assembly for controlling the rotation of the buckets between a conveying position and a discharge position of the product towards said station;
respective resting surfaces of the buckets being upwardly concave, and at least one part of the resting surfaces of the bucket defined by a plurality of rollers turning about their longitudinal axis, which is parallel to the horizontal axis (X).
2) The system of claim 1, at least one of the rollers being driven.
3) The system of claim 1, comprising:
means for determining at least one feature of the fruit andor vegetable products accommodated in the buckets;
a plurality of stations and corresponding assemblies, for the respective stations; and
an electronic control unit (7) configured to control the respective operations of the assemblies based upon the at least one feature determined by the determining means.
4) The system of claim 3, the stations comprising respective conveyor belts on whose surfaces are provided seats in which the products of the buckets are transferred.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A backlight unit comprising:
a lamp for emitting light;
a light guide plate for guiding light emitted from the lamp;
an optical sheet for reflecting totally reflect light incident from the light guide plate, the optical sheet including a first base film, a plurality of prism patterns extending from one side of the first base film to another side thereof, and refraction layers each formed between the neighboring prism patterns; and
a light blocking unit formed along at least one side of an upper surface of the optical sheet to block the light transmitted through the corresponding region,
wherein a refractive index of the refraction layer is higher than that of the prism pattern such that the light transmitted through the refraction layer is totally reflected at an interface with the prism pattern.
2. The backlight unit of claim 1, wherein a difference between the refraction index of the refraction layer and that of the prism pattern is more than 0.1.
3. The backlight unit of claim 2, wherein the refraction index of the refraction layer is more than 1.51, and the refraction index of the prism pattern is less than 1.50.
4. The backlight unit of claim 1, wherein the light blocking unit is formed of one of a black ink, gray ink, and a white ink.
5. The backlight unit of claim 1, wherein the light blocking unit is made of a light blocking tape.
6. The backlight unit of claim 1, further comprising a diffusion material for diffusing input light which is dispersed into the first base film.
7. The backlight unit of claim 1, further comprising a second base film formed on the prism patterns and the light blocking unit.
8. The backlight unit of claim 7, wherein the second base film contains a diffusion material.
9. The backlight unit of claim 1, further comprising formless spot patterns formed on at least one of upper and lower surfaces of the light guide plate.
10. The backlight unit of claim 1, further comprising prisms formed on at least one of upper and lower surfaces of the light guide plate.
11. The backlight unit of claim 1, further comprising:
prisms formed on at least one of an upper surface or a lower surface of the light guide plate; and
formless spot patterns formed on another surface of the light guide plate.
12. A liquid crystal display device comprising:
a liquid crystal display panel displaying an image thereon;
a lamp for emitting light;
a light guide plate for guiding the light emitted from the lamp;
an optical sheet for reflecting totally reflect light incident from the light guide plate to the liquid crystal display panel, the optical sheet including a first base film, a plurality of prism patterns extending from one side of the first base film to another side thereof, and refraction layers each formed between the neighboring prism patterns; and
a light blocking unit formed on an upper surface of the optical sheet along an edge region of the liquid crystal display panel to block light transmitted through the corresponding region,
wherein a refractive index of the refraction layer is higher than that of the prism pattern such that the light transmitted through the refraction layer is totally reflected at an interface with the prism pattern.
13. An optical sheet suitable to a backlight of a display device, comprising:
a first base;
a plurality of prism patterns on the first base film, the prism patterns being extended from one side end to the other side end of the base film;
refraction layers between the prism patterns to reflect totally the incident light, a refractive index of the refraction layer being higher than that of the prism pattern to reflect totally the light transmitting through the refraction layer at the boundaries of the prism patterns and the refraction layers; and
a light blocking unit along at least one side of an upper surface of the optical sheet to block the light transmitted through the corresponding region
14. The optical sheet of claim 13, wherein a difference between the refraction index of the refraction layer and that of the prism pattern is more than 0.1.
15. The optical sheet of claim 13, wherein the refraction index of the refraction layer is more than 1.51, and the refraction index of the prism pattern is less than 1.50.
16. The optical sheet of claim 13, further comprising a diffusion material for diffusing input light which is dispersed into the first base film.
17. The optical sheet of claim 13, further comprising a second base film formed on the prism patterns and the light blocking unit.
18. The optical sheet of claim 17, wherein the second base film contains a diffusion material.
19. A method of fabricating an optical sheet, comprising:
providing a first base;
forming a plurality of prism patterns on the first base film, the prism patterns being extended from one side end to the other side end of the base film;
forming refraction layers between the prism patterns to reflect totally the incident light, a refractive index of the refraction layer being higher than that of the prism pattern to reflect totally the light transmitting through the refraction layer at the boundaries of the prism patterns and the refraction layers; and
introducing a light blocking unit along at least one side of an upper surface of the optical sheet to block the light transmitted through the corresponding region
20. The method of claim 19, further comprising dispersing a diffusion material to the first base film to diffuse the incident light.
21. The method of claim 19, further comprising forming a second base film on the prism patterns and the light blocking unit.
22. The backlight unit of claim 21, wherein the second base film contains a diffusion material.