Ultra-precision freeform surfaces are important to the development of complex and micro-optical-electro-mechanical devices used in many photonics and telecommunication products such as F-theta lenses for laser printers. These surfaces are complex and large scale surface topologies with shapes that g.....
[更多]
This is a follow-up patent on previous patent on reflective liquid crystal display (LCD), US patent no. 5,926,245. This patent discloses practical method of making reflective LCD.In the previous patent, a new type of reflective LCD was introduced and that only one front polarizer is therefore neede.....
[更多]
Mono-pegylated arginase conjugate and method producing thereof. The mono-pegylated arginase is homogeneous in molecular weight and shows therapeutic effect for treating cancers and viral infections. The method of producing such arginase conjugate has a main step of genetically modifying the gene enc.....
[更多]
Light-emitting devices and lens therefor
[更多]
An impact mechanism for a hammer drill, which has a housing and a drill bit protruding outside the housing, is provided. The mechanism includes firstly an impact platform within the housing; the impact platform is in connection with the drill bit for receiving impact forces and for transferring the .....
[更多]
| |< <- | [232] [233] [234] [235] [236] [237] [238] [239] [240] [241] [242] | -> >| |
