NBFD26 (nd=1.83401, vd=25.97) has been added to the NBFD series, which is characterized by its low partial dispersion.
It features a PgF of 0.6076, which is lower than NBFD25 (PgF=0.6103).
There are no shape restrictions like NBFD25.
MC-TAF115 (nd=1.77047, vd=49.46) is a glass that improves on the GMO press formability of MC-TAF105.
MC-TAF115 has a Tg that is approximately 20°C lower than MC-TAF105.
It also has the same specific gravity as TAF1 (specific gravity = 4.28).
By reducing the use of expensive rare metal raw materials, we have also succeeded in reducing the cost of the glass.
We will release TAF48, which has a higher refractive index (nd=1.79) and Abbe number (vd=48.1) than TAF4, which is a medium refractive index and low dispersion glass.
We have successfully reduced the cost of glass by reducing the amount of expensive rare metal raw materials.
FDS165-W (nd=1.98611, vd=17.25) is a glass with consideration for transmittance and specific gravity in the high refractive index and high dispersion region.
Internal transmission at 460nm is over 95%.
MC-TAFD317 (nd=1.88120, vd=37.17) is a glass with improved GMO press formability of MC-TAFD307.
Tg is approximately 20℃ lower than MC-TAFD307.
We have achieved lower costs by reducing the use of expensive rare metal raw materials.
nd, vd, coloring code is the same as conventional TAFD45. (nd:1.95375 νd:32.32 λ70/λ5:405/355)
We will introduce NBFD265 (nd=1.95203, vd=26.20), which has the highest refractive index in the NBFD series, which is characterized by partial dispersion.
PgF is 0.6101, which is close to NBFD25 (PgF=0.6103).
We will release FDS24-SW, a high refractive index, low specific gravity glass with improved transmittance characteristics, for use in AR/MR waveguides.(nd=1.92119, νd=23.96, d=3.84)
It has a Knoop hardness Hk of 605, and is a glass that takes into consideration both optical and mechanical properties.
Characteristics other than transmittance characteristics are the same as FDS24 and FDS24-W.
Furthermore, this glass type is limited to cold working without any softening or pressing process.
In addition to MC-TAFD315, we have added M-TAFD315 to our lineup.
In addition to optical glass for cold-processed preforms, we can also provide glass mold lenses.
In addition to the conventional M-TAFD305, M-TAFD315 can also be selected for large lenses (approximately φ25 or more in outer diameter) that use cold-processed preforms.
TAFD34 (nd=1.85033, vd=42.70) is the same vd as TAFD5G (nd=1.83481, vd=42.72) and has a higher refractive index.
It also has good transmittance characteristics (coloration code λ70=370nm) and can be used for various optical products.
We will release NBFD38 (nd=1.65253, νd=39.48) with very large anomalous dispersion in the near-infrared region.
It is a glass that considers both optical performance and chemical durability.
Suitable for cameras that use near-infrared rays.
MC-TAFD315 (nd:1.85136 νd:40.07) is a glass with improved GMO press moldability of MC-TAFD305.
It can be press-molded at lower temperatures than MC-TAFD305, and the molding range is wider.
TAC8P and FDS90-SGP have a standard tolerance of νd±0.4% and are glasses that can meet high precision requirements.
Refractive index dispersion properties are adjusted.
There is no change in other characteristics.
LAF45 (nd=1.61396, νd=44.29) is a glass with extremely large anomalous dispersion in the near-infrared wavelength region.
Suitable for cameras that use near-infrared light such as CCTV.
Cost reduction has been achieved by reducing expensive rare metal raw material components.
nd, vd, coloration are the same as TAFD35. (nd:1.91082 νd:35.25 λ70/λ5:395/350)
We have greatly improved the transmittance characteristics of the high-dispersion glass material E-FDS3 (nd=2.10420, νd=17.02) with a refractive index exceeding nd=2.1. Characteristics other than transmittance are the same as E-FDS3.
Following FCD615, we will release FCD915 (nd = 1.48071, νd = 85.29) .
An optical glass for polished lenses that achieves a high refractive index of nd=1.48071 in the low dispersion region where νd exceeds 85.
It also has anomalous dispersion unique to the FCD series.
FCD615 (nd = 1.57144, νd = 71.61) has been newly added to the FCD series.
It is an optical glass for polished lenses that has abnormal dispersibility, which is a feature of the FCD series, and is effective in correcting chromatic aberration.
The transmittance standard value has been changed due to improvements in production technology and quality stability.
Added dn / dt data for TAC6, LAC8, M-BACD15, MP-BACD15.
Old manufacturing range, dimensional shape quality
New manufacturing range, dimensional shape quality
NBFD27 (nd: 1.90110, νd: 27.06, PgF: 0.6072), which has the highest refractive index (nd: 1.90110), has been newly added to the NBFD series (NBFD25, NBFD29, NBFD30, NBFD32), which is characterized by low partial dispersion in the g-line 435.834nm-F-line 486.133nm region.
It is a well-balanced glass material with high refractive index, high light transmission characteristics, and low specific gravity of 3.83.
The new glass FD270 (nd = 1.68430, νd = 26.81) has high partial dispersibility especially in the short wavelength . PgF = 0.6232
It is characterized by high dispersion but low temperature coefficient of refractive index.
dnd/dT(20～40℃)=-3.1×10-6 (ref. E-FD4L(νd=27.53) dnd/dT= 2.6×10-6)
For the M-FCD500, MP-FCD500-20, and MC-FCD500-20, which were previously sold as molded lenses and preformed glass for molded lenses, only the refractive index was finely adjusted so that they could be used as spherical lenses. We will sell FCD500.
The transmittance characteristics of low specific gravity glass material FDS24 (nd = 1.92119, νd = 23.96, d = 3.84) exceeding the refractive index nd = 1.9 have been greatly improved.
The characteristics other than the transmittance characteristics are the same as FDS24.
E-FD1L, E-FD4L, E-FD10L, and E-FD15L have been improved in accuracy with respect to optical characteristics by special melting technology.
Guaranteed by tolerances of refractive index nd ± 20 × 10-5 and Abbe number νd ± 0.3%.
In addition, the use of expensive raw materials has been reduced, resulting in lower prices. Nd and νd are the same as conventional products.
In addition to M-NBFD130 and MP-NBFD130, we have lineup of optical glass MC-NBFD130 for cold working preform.
As the νd tolerance required for products has been reduced, the number of digits displayed for the νd reference value has been written along with the two decimal places and three digits.
For example, for glass types where νd is less than 20, it is possible to specify tolerance with a three-digit numerical value using a three-digit standard value after the decimal point.
The number of wavelength digits has been changed to meet the demand for higher precision.
M-PCD55AR is a glass molded lens that achieves an acid resistance 1 grade which has never been seen in the middle refractive and medium dispersion regions of nd 1.60 to 1.80 and vd 50 to 60.
It has a small refractive index temperature change (dn / dT) and is suitable for automotive camera lenses. We also manufacture hot process-formed preforms (MP-PCD55AR). Process cost can be reduced.
It is a glass that achieves the lowest partial dispersion ratio PgF in the νd = 30 area, and is effective for chromatic aberration correction.
Low specific gravity is also characteristic, and it is also effective in reducing the weight of the optical system. In addition, it has good transmittance characteristics and can be used for many applications such as interchangeable lenses.
It is a glass that achieves the lowest partial dispersion ratio PgF in the νd = 32 area, and is effective for chromatic aberration correction.
Low specific gravity is also characteristic, and it is also effective in reducing the weight of the optical system. In addition, it has good transmittance characteristics and can be used for many applications such as interchangeable lenses.
A glass type which has a refractive index of 1.85 and Abbe number of 25 and realizes low partial dispersion ratio PgF in the same area as FDS90, is effective for correcting chromatic aberration.
It has better transmittance characteristics than FDS90-SG, and it can be used for wide applications such as interchangeable lenses.
The transmittance characteristics of TAFD 55 (nd = 2.00100, νd = 29.13) exceeding the refractive index nd = 2.0 have been greatly improved.
Characteristics other than transmittance are the same as for TAFD55.
The transmittance characteristics of TAFD 40 (nd = 2.00069, νd = 25.46) exceeding the refractive index nd = 2.0 have been greatly improved.
Characteristics other than transmittance are the same as for TAFD40.
Dear Customers
Due to server problems, you might have difficulty getting access to our website during the period below.
We apologize for any inconvenience caused by this server problems.
August 29, 2018, 4:03 p.m. - August 30, 2018, 1:00 a.m. (PST)
August 30, 2018, 4:58 p.m. - August 30, 2018, 5:13 p.m. (PST)
August 30, 2018, 6:57 p.m. - August 30, 2018, 7:22 p.m. (PST)
We have already solved the problems, been running it as usual.
If anyone who contacted us in the period and not have any response yet, please contact us again.
We apologize for any inconvenience caused by this development.
Thank you for your cooperation.
FDS20-W achieved high dispersion(vd=20.02) more than FDS90(vd=23.78) without decline of spectral transmission.
Because FDS20-W has a property of low density(Specific Gravity=3.37), contribution to the weight saving of lens can be expected.
In production of non-spherical-power lens by mold press, last refractive index changes on annealing condition. Amount of refractive index change depending on wavelengths is different, it is indicated by catalog data of βC, βd, βF, βg. For your information, annealing condition of MC-glass type and result of constants of dispersion formula and estimated residual stress birefringence are indicated. Residual stress birefringence was calculated using following formula.
→Excel file of reference information can be downloaded here.
It is a glass with an extremely high partial dispersion ratio (PgF = 0.555) in the νd = 60 area, which have no abnormal dispersion material so far.
And in near infrared spectrum, FCD600 also shows unprecedented partial dispersion ratio and can be used for high-precision correction of chromatic aberration over a wide range of wavelengths.
As low partial dispersion ratio glass in vd=30 range, a sharp lightweight be realized,
and with excellent transmittance and durability, it can be widely used in many fields.
The 19th China International Optoelectronic Expo 2010 was held at CIOE 2017 in Shenzhen, China from Wednesday, September 6th to Saturday, 9th.
We highly appreciate all visitors who visited our booth.
Comparing with TAFD30, TAFD32 has same vd value with close nd value,
while exclude the component of Ta, become lighter and lower cost.
High refractive index( nd=2.05) , high transmission with low dispersion and
high environmental resistance, could be widely use in various applications.
The vd value 16.48 which more extreme than FDS18, with high dispersion,
while sustain high transmittance.
Our NRP® was published in the Nihon Keizai Shimbun (Japan Economic News post) dated 21 July 2014.
Our previous processing of lens material (RP, reheat-pressed product) was molded to a predetermined size that included a flap zone, has been used over the years for spherical glass lenses and was manufactured through the process of grinding and polishing.
The NRP® process that we developed produces lens material shape accuracy improvement (three times higher precision of RP), surface defects less than 1/3 and thickness variation accuracy improvement (5 times over the current company standard) which could significantly reduce the allowance of polishing lens and reduce the processing fluctuation.
For more information, please refer to the Contact Us on this site or contact our sales representatives by phone at +81-42-546-2520.
It should be noted that, "NRP" is a registered trademark of HOYA CORPORATION.
Thanks for yours sincerely coming "Lens Expo 2012"Apr. 25th to 27th, 2012, in Pacifico Yokohama.
We are pleased to inform our dearest customers and whom may concernsthat we will attend Lens Expo 2012 which would be held at Pacifico Yokohama,
And we are sincerely looking forward to your visiting.
Time: 25th~27th April, 2012 10:00am-5:00pm
Location: Pacifico Yokohama
Booth: G-1
In the Expo, we would present our new series of cold processing preforms (MC-FCD500-20, MC-TAF31-15); improved spectral transmission with high dispersion optical glasses (FD60-W, NBFD15-W) and all kinds of aspheric lens use optical glasses, lens polishing use optical glasses.
Thanks for yours sincerely coming from various countries and cities visiting our Sept 6th to 9th, 2011, in China International Optoelectronic Exposition(CIOE).
We are looking forward to see you next year again.
The China International Optoelectronic Exposition (CIOE) is a worldwide renowned optoelectronic field exhibition.
This year, the 13th CIOE would be held in Shenzhen Convention& Exhibition Center from September 6th to 9th , 2011 over a total exhibition area of 100,000 square meter. There would be almost 3000 worldwide exhibitors expected to attend.
We, HOYA Group, are pleased to inform our dearest customers and whom may concerns that we will be attending this year to present our most advanced optoelectronic technologies and innovations in the show box 9331( 9th Entry spot), and we are looking forward to your visiting.
<Related Link>
"The 13th China International Optoelectronic Expo"TOP PAGE 
The currently recommended glass FDS90, is widely use as a typical high refractive optical glass with high dispersion. However, this glass type has its specific coloration, many of our customers requested the improvement of its transmission.
In order to response the request of our valuable customers, HOYA was devoted to investigate, and finally come to the result of establishing the stablized production technology of the following high transmission optical glass.
We named it as 「FDS90-SG」 (SG：Special Glass, which is particularly for the improvement of transmission.)
This product is positioned as a contribution to the high performance, high function and high quality of optical products.
In addition, only transmission is changed, without any change of the composition of glass and raw material. Also, the price will be same as current FDS90.
Please reference to the following PDF for the standard value of FDS90-SG and Premier νd standard.
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For further information of Premier νd standard of FDS90-SG, please visit "Consultation" of our website or contact the following operation branches.
Japan [+81]
〒196-8510, 3-3-1 Musashino, Akishima, TokyoCity
3-3-1Musashino, Akishima-shi, Tokyo 196-8510, Japan
TEL:(042)546-2520 (glass material)、 (042)546-2518 (spherical and aspherical lens)
FAX:(042)546-2097(general)
ASIA・Europe HOYA OPTICAL(ASIA)Co,LTD. [+852]
Suite 3101-2,Tower 6, The Gateway, 9 Canton Road, Tsim Sha Tsui, Kowloon, Hong Kong
TEL:(2723)6883 FAX:(2723)6928
(low dispersion and anomalous dispersion glass)FCD100 is an extremely low dispersion optical glass equivalent to fluorite (CaF2). Relying on technological innovation, we have successfully launched the mass production of high-performance optical glass at the apex of the FCD family. Combining it with optical glass of high refractive index allows us to achieve unprecedented advanced chromatic aberration correction.
(high refractive index and low dispersion glass)TAFD55 is an optical glass that achieves a high refractive index exceeding nd = 2.0 and boasts an Abbe number above νd = 29. Moreover, it limits the type of rare metal materials used to obtain maximum cost performance.It also exhibits outstanding spectral transmission, making it the best choice in lenses for high-performance digital products.
(high refractive index / low dispersion glass)TAFD33 is a new high-performance optical glass, which enjoys a high refractive index that exceeds nd = 1.88 and an Abbe number over νd = 40. It achieves low cost by reducing the use of expensive rare metal materials.
(low density and low dispersion glass)PCD51 is a low dispersion optical glass, featuring excellent chemical durability and low specific gravity.This is a high-performance glass especially suited for reducing optical weght.
(high refractive index and low dispersion glass material for molded optical lenses)M-TAFD307 is a glass molding material with a high refractive index made from M-TAFD305, which contributes greatly to high-power lens designs. Moreover, its Abbe number is equivalent to that for M-NBFD10, and it can also be used as a high refractive index glass. We are also able to provide aspheric lenses with the same quality as that of M-TAFD305.
(high refractive index and high dispersion glass material for molded optical lenses)M-FDS1 is a glass molding material whose refractive index properties equal those of E-FDS1. With the use thereof, the number of choices for high refractive index and high dispersion aspheric lenses ranging between M-FDS2 and M-FDS910 has increased. This enables us to meet a wide variety of needs for high-power lenses.
、M-LAC14(low dispersion glass material for molded optical lenses)M-LAC8 and M-LAC14 were created to respond to the need for high-performance lens designs more efficient than those for M-LAC130. As a result, the current TAFD~TAC lineup of aspheric lenses featuring a high refractive index and low dispersion has been extended to the LAC series.
We have prepared the following list of glass preforms for precision molding. (Please take note that the preforms marked by the suffix □ □ □ have a different refractive index from molded lenses (MO) designated by the prefix (M-) in the catalogue. )
| Glass Type | nd | νd | Tg | Glass Type | nd | νd | Tg | |
|---|---|---|---|---|---|---|---|---|
| MP-FCD1-M20 | 1.49690 | 81.54 | 384 | MP-FDS1 | 1.92286 | 20.88 | 468 | |
| MP-FCD500-20 | 1.55352 | 71.72 | 397 | MP-FDS2 | 2.00178 | 19.32 | 483 | |
| MP-PCD4-40 | 1.61921 | 63.86 | 508 | MP-FDS910-50 | 1.82165 | 24.04 | 454 | |
| MP-PCD51-70 | 1.59271 | 66.97 | 499 | MP-LAF81 | 1.73077 | 40.50 | 493 | |
| MP-BACD15 | 1.62263 | 58.16 | 528 | MP-NBF1 | 1.74330 | 49.33 | 560 | |
| MP-LAC8-30 | 1.71330 | 53.95 | 582 | MP-NBFD10-20 | 1.83461 | 37.29 | 567 | |
| MP-LAC14-80 | 1.69760 | 55.51 | 588 | MP-TAF31-15 | 1.80154 | 45.46 | 594 | |
| MP-TAC60-90 | 1.75591 | 51.18 | 622 | MP-TAF101-100 | 1.76902 | 49.29 | 607 | |
| MP-TAC80-60 | 1.72963 | 54.07 | 619 | MP-TAFD51-50 | 1.82130 | 42.71 | 600 | |
| MP-FD80 | 1.68893 | 31.16 | 454 | MP-TAFD307 | 1.88202 | 37.22 | 604 | |
The following are the ordinary glass types
| Glass Type | nd | νd | Tg | |
|---|---|---|---|---|
| MP-BACD5N | 1.58913 | 61.25 | 521 | |
| MP-BACD12 | 1.58313 | 59.46 | 500 | |
| MP-LAC130 | 1.69350 | 53.20 | 525 | |
| MP-NBFD130 | 1.80610 | 40.73 | 567 | |
| MP-TAF401 | 1.77377 | 47.17 | 569 | |
| MP-TAFD305 | 1.85135 | 40.10 | 612 | |
(high refractive index and low dispersion preforms for precision molding)MC-TAF1 is a glass molding material with a high refractive index and low dispersion, possessing refractive index properties corresponding to those of optical glass TAF1. Highly accurate pressing at low temperatures is possible since the glass transition temperature (Tg) of MC-TAF1 is substantially lower than that of TAF1.
We have prepared the following list of glass preforms for precision molding (Precision Surface). The following glass types are used in the production of high-precision aspheric lenses. (Please take note that the preforms marked by the suffix □ □ □ have a different refractive index from the molded lens (MO) designated by the prefix (M-) in the catalogue.
| Glass Type | nd | νd | Tg | |
|---|---|---|---|---|
| MC-FCD1-M20 | 1.49690 | 81.54 | 384 | |
| MC-PCD51-70 | 1.59271 | 66.97 | 499 | |
| MC-FDS2 | 2.00178 | 19.32 | 483 | |
| MC-FDS910-50 | 1.82165 | 24.04 | 454 | |
| MC-NBF1 | 1.74330 | 49.33 | 560 | |
| MC-TAF1 | 1.77250 | 49.47 | 558 | |
| MC-TAF101-100 | 1.76902 | 49.29 | 607 | |
| MC-TAFD51-50 | 1.82130 | 42.71 | 600 | |
| MC-TAFD307 | 1.88202 | 37.22 | 604 | |
The following are the ordinary glass types
| Glass Type | nd | νd | Tg | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MC-BACD5N | 1.58913 | 61.25 | 521 | ||||||||||
| MC-BACD12 | 1.58313 | 59.46 | 500 | ||||||||||
| MC-LAC130 | 1.69350 | 53.20 | 525 | ||||||||||
| MC-NBFD135 | 1.80834 | 40.92 | 547 | ||||||||||
| MC-TAF401 | 1.77377 | 47.17 | 569 | ||||||||||
| MC-TAFD305 | 1.85135 | 40.10 | 612 | ||||||||||
We will participate in the “LENS EXPO 2011” and you will be welcome to our booth.
Date: April 20 (Wed)~22 (Fri), 2011
Venue：PACIFICO YOKOHAMA, Yokohama, Japan
At this exhibition, we’ll introduce new members of the “H-series” optical glass types and low melting point glass.
We will also present "Optical Glass materials (blanks for glass lenses, preforms for precision moldings)" and "Optical Lenses (aspherical, spherical)" adopting those new glass types.
