News
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Welcome to our booth 1C22A!
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China International Optoelectronic EXPO Betensh Optics Attend
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Laser World of Photonics in Munich Betensh Optics Attend
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Welcome to our booth A2/132/3!
LASER-World of Photonics 2023 Time: June 27,2023 ~ June 30 Venue: Germany-Munich-Messegelande, 81823-Munich New International Expo Center Organizer: Munich, Germany https://exhibitors.world-of-photonics.com/exhibitor-portal/2023/list-o...Read more -
Germany Endoscopy clients visit our factory to discuss cooperation.
On 13th March 2023, the Germany Endoscopy clients visited our factory and discussed further cooperation. We made rod lenses with four or five gluing processing technology to meet the requirement of no gap after glued, small chamfer and good coating. Clients visited our w...Read more -
IPL Sapphire light block
Laser beauty instrument (IPL) special sapphire crystal light guide block is a kind of sapphire crystal with high transparency and purity, leading good optical properties of sapphire crystal light guide block for laser beauty instrument is a cuboid optical glass, six side...Read more -
The ideal for FTIR Spectroscopy—KBr crystal substrate
The main transparency range of KBr potassium bromide crystal substrate is 0.22μm~30μm, covering NIR, NIR and FIR bands. It has very low absorption loss in the NIR wavelength of 4000-400cm-1.It is commonly used as transmission windows or beam splitters for FTIR spectropho...Read more -
How to Choose the Correct Infrared Material?
When choosing the correct IR material, there are three simple points to consider. Though the selection process is easier because there is a much smaller practical selection of materials for use in the infrared compared to the visible, these materials also tend to be more...Read more -
YAG is the earliest and most famous laser host crystal.
YAG (Yttrium Aluminium Garnet, Yttrium Aluminium Oxide Y3Al5O12) is a durable, synthetic material belonging to the garnet group. It can be used as an alternative to sapphire, both being easier to polish and not exhibiting the latter’s birefringence. YAG is frequently use...Read more -
How much do you know about Sapphire Negative Lens?
We are dedicated in quality and low cost of IR optics. Sapphire Negative Lens that is excellent transmittance from the ultraviolet to the mid-infrared, it exhibits high thermal conductivity, and it has very high surface hardness. Sapphire has excellent transmittance from...Read more -
Do you know the benefits of ZnSe plano-concave lens?
These low absorption ZnSe plano-concave lenses provide an extended lifetime in laser cutting applications where depth of field is an important factor. Ideally suited for welding, cutting and heat treating, these low-cost lenses have superior thermal characteristics which...Read more -
What are main IR materials?
Betensh Optics providing main IR material is including Calcium Fluoride (CaF2), Fused Silica (FS), Magnesium Fluoride (MgF2), N-BK7, Sapphire, Silicon (Si), LiF(Lithium Fluoride), BaF2 (Barium Fluoride),Zinc Selenide (ZnSe), Zinc Sulfide (ZnS), KBr. BK7: 0.35~2.0um CaF2:...Read more