1. UV-LENSES H2520-UVM B2528-UV, B7838-UV
CCTV-LENSES
UV-LENSES
H2520-UVM
B2528-UV, B7838-UV

2. UV Lenses H2520-UVM, B2528-UV, B7838-UV

3. What are UV rays? UV-C （100～280nm） Cosmic rays Gamma rays UV-C
X rays
UV rays
Visible rays
IR rays
Electric wave
760
380
100
1000
0.01
0.001
[nm]
UV-C
UV-B
UV-A
Visible rays
100nm
280nm
315nm
380nm
UV-C　（100～280nm）
*Absorbed by ozone.
*Sterilizing action
UV-B　（280～315nm）
*Suntan
*Generation of vitamin D3
UV-A　（315～380nm）
*Aging of skin

4. H2520-UVM, B2528-UV, B7838-UV H2520-UVM UV-C 280 to 365nm
25mm F2.0
Wavelength range
stay in focus:
　280 to 365nm
(Mega-pixel)
and
250nm to 450nm
(High resolution)
UV-C
UV-B
UV-A
Visible rays
100nm
280nm
315nm
380nm
***nm
250nm
B2528-UV and B7838-UV
25mm F2.8 and 78mm F3.8
Wavelength range stay in focus:
　***nm +/- 5nm
(***: from 230nm to 800nm)
450nm

5. H2520-UVM　（UV Lens）
*High performance UV lens corresponding with mega-pixel camera.
High resolution
High contrast
Low distortion
*Compact in design and ideal for integration into machine vision systems.
*Focus and iris locking screws against vibration and shock.
*Extended wavelength range (280nm to 365nm) by introduction of fluorite.
Mega pixel
280 to 365nm
High resolution
250 to 450nm
Focal length
25mm
Iris range
F2.0 to F16
Format
1/2
Angle of view
14.6 degrees
Dimensions
29.5 x 46mm
Weight
78 grams
Mount
C mount
Compact & light weight
Locking screws

6. H2520-UVM Transmission factor
－H2520-UVM (UV lens) －Ordinary lens
　280 to 356nm: Ideal for mega pixel UV cameras
250 to 450nm: Ideal for high resolution UV cameras
230 to 1000nm: Working wavelength range by attaching band-pass filters

7. B2528-UV and B7838-UV (Near UV Lenses)
+ For 1 inch format near UV cameras
+ Adopting optical quartz
+ Working wavelength range from 230nm to 800nm by attaching
bandpass filters having bandwidth of 10nm
B2528-UV
B7838-UV
Focal length
25mm
78mm
Iris range
F2.8 to F16
F3.8 to F22
Format 1
Angle of view
29.7 degrees
9.5 degrees
Dimensions
30 x 25.4mm
62.5 x 109.3mm
Weight
36 grams
450 grams
Mount
C mount
B7838-UV
B2528-UV

8. Scattering of rays
Rays having long wavelength
UV rays having short wavelength are likely to hit atoms and molecules and tend to scatter.
Atoms
&
molecules
UV rays having short wavelength
Atoms
&
molecules

9. Scattering of rays UV rays are short in UV rays wavelength and
tend to scatter.
Near IR rays
(Long wavelength)
UV rays
(Short wavelength)
Scattering
Ideal to see surface
of objects
Easy to see details of
surface, objects and
scratches

10. Application examples of UV camera and lens
+ Surface inspection of circuits and soldering condition:
Clearer to detect damage, dust or stain
+ Manufacturing and quality control of semiconductors: Leaves no damage nor effect on the objects
+ Usages with microscope in medical applications
+ Detection of forgery, falsified documents, bills and credit cards:   *Genuine U.S. dollar bill does not emit light *Transparent stamp appears on latest credit card
+ Inspection of fiber optics
+ Inspection of oil contamination and leakage

11. Example 1: LCD display ＵＶ lens Ordinary lens Dust Scratch
電卓兼時計のLCD表示部分です。やはりXC-EU50の方はLCDパネル表面の状態が良く表現されています。
Dust
Scratch
UV camera: SONY XC-EU50
Std. Camera: SONY XC-ES50
Cordial thanks to SONY Corp.for the image data

12. Example 2: Fibers ＵＶ lens Ordinary lens
繊維です。XC-EU50の方は繊維の表面状態が優先されるため細かな硬い感じがします。他方XC-ES50の画像は繊維の中まで長波長が入り込んでいるためソフトで細やかさはあまり感じられません。とにかく画像の差は歴然です。この場合、繊維上の不要物（ゴミなど）の検査などに良いかもしれません。
UV camera: SONY XC-EU50
Std. Camera: SONY XC-ES50
Cordial thanks to SONY Corp.for the image data

13. Example 3: P.C. board UV lens Ordinary lens
実装基板です。基板の配線がXC-EU50では表面のレジスト層で反射され見えず、そのために部品とその半田状態が良好に認識できます。XC-ES50では配線も見え込み入った複雑な画像となっています。
Easy to see on-board parts and soldering conditions.
UV camera: SONY XC-EU50
Std. Camera: SONY XC-ES50
Cordial thanks to SONY Corp.for the image data

14. Example 4: Uneven surface
UV lens
Ordinary lens
UV camera: SONY XC-EU50
Std. Camera: SONY XC-ES50
Cordial thanks to SONY Corp.for the image data

15. Example 5: Surface layer
UV lens
Ordinary lens
ゴム製の電卓のキー部分です。XC-EU50はゴム表面のゴミが確認できます。
UV camera: SONY XC-EU50
Std. Camera: SONY XC-ES50
Cordial thanks to SONY Corp.for the image data

16. PENTAX Europe GmbH
Security Systems Division
Julius-Vosseler-Straße 104
22527 Hamburg
Phone: (040)
Fax: (040)
Internet: